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Xi Yan 2024-10-08 23:41:03 -07:00
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llama_stack/providers/adapters/inference/bedrock/bedrock.py
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@ -1,445 +1,445 @@
# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under the terms described in the LICENSE file in
# the root directory of this source tree.
from typing import * # noqa: F403
import boto3
from botocore.client import BaseClient
from botocore.config import Config
from llama_models.llama3.api.chat_format import ChatFormat
from llama_models.llama3.api.tokenizer import Tokenizer
from llama_stack.providers.utils.inference.routable import RoutableProviderForModels
from llama_stack.apis.inference import * # noqa: F403
from llama_stack.providers.adapters.inference.bedrock.config import BedrockConfig
BEDROCK_SUPPORTED_MODELS = {
"Llama3.1-8B-Instruct": "meta.llama3-1-8b-instruct-v1:0",
"Llama3.1-70B-Instruct": "meta.llama3-1-70b-instruct-v1:0",
"Llama3.1-405B-Instruct": "meta.llama3-1-405b-instruct-v1:0",
}
class BedrockInferenceAdapter(Inference, RoutableProviderForModels):
@staticmethod
def _create_bedrock_client(config: BedrockConfig) -> BaseClient:
retries_config = {
k: v
for k, v in dict(
total_max_attempts=config.total_max_attempts,
mode=config.retry_mode,
).items()
if v is not None
}
config_args = {
k: v
for k, v in dict(
region_name=config.region_name,
retries=retries_config if retries_config else None,
connect_timeout=config.connect_timeout,
read_timeout=config.read_timeout,
).items()
if v is not None
}
boto3_config = Config(**config_args)
session_args = {
k: v
for k, v in dict(
aws_access_key_id=config.aws_access_key_id,
aws_secret_access_key=config.aws_secret_access_key,
aws_session_token=config.aws_session_token,
region_name=config.region_name,
profile_name=config.profile_name,
).items()
if v is not None
}
boto3_session = boto3.session.Session(**session_args)
return boto3_session.client("bedrock-runtime", config=boto3_config)
def __init__(self, config: BedrockConfig) -> None:
RoutableProviderForModels.__init__(
self, stack_to_provider_models_map=BEDROCK_SUPPORTED_MODELS
)
self._config = config
self._client = BedrockInferenceAdapter._create_bedrock_client(config)
tokenizer = Tokenizer.get_instance()
self.formatter = ChatFormat(tokenizer)
@property
def client(self) -> BaseClient:
return self._client
async def initialize(self) -> None:
pass
async def shutdown(self) -> None:
self.client.close()
async def completion(
self,
model: str,
content: InterleavedTextMedia,
sampling_params: Optional[SamplingParams] = SamplingParams(),
stream: Optional[bool] = False,
logprobs: Optional[LogProbConfig] = None,
) -> Union[CompletionResponse, CompletionResponseStreamChunk]:
raise NotImplementedError()
@staticmethod
def _bedrock_stop_reason_to_stop_reason(bedrock_stop_reason: str) -> StopReason:
if bedrock_stop_reason == "max_tokens":
return StopReason.out_of_tokens
return StopReason.end_of_turn
@staticmethod
def _builtin_tool_name_to_enum(tool_name_str: str) -> Union[BuiltinTool, str]:
for builtin_tool in BuiltinTool:
if builtin_tool.value == tool_name_str:
return builtin_tool
else:
return tool_name_str
@staticmethod
def _bedrock_message_to_message(converse_api_res: Dict) -> Message:
stop_reason = BedrockInferenceAdapter._bedrock_stop_reason_to_stop_reason(
converse_api_res["stopReason"]
)
bedrock_message = converse_api_res["output"]["message"]
role = bedrock_message["role"]
contents = bedrock_message["content"]
tool_calls = []
text_content = []
for content in contents:
if "toolUse" in content:
tool_use = content["toolUse"]
tool_calls.append(
ToolCall(
tool_name=BedrockInferenceAdapter._builtin_tool_name_to_enum(
tool_use["name"]
),
arguments=tool_use["input"] if "input" in tool_use else None,
call_id=tool_use["toolUseId"],
)
)
elif "text" in content:
text_content.append(content["text"])
return CompletionMessage(
role=role,
content=text_content,
stop_reason=stop_reason,
tool_calls=tool_calls,
)
@staticmethod
def _messages_to_bedrock_messages(
messages: List[Message],
) -> Tuple[List[Dict], Optional[List[Dict]]]:
bedrock_messages = []
system_bedrock_messages = []
user_contents = []
assistant_contents = None
for message in messages:
role = message.role
content_list = (
message.content
if isinstance(message.content, list)
else [message.content]
)
if role == "ipython" or role == "user":
if not user_contents:
user_contents = []
if role == "ipython":
user_contents.extend(
[
{
"toolResult": {
"toolUseId": message.call_id,
"content": [
{"text": content} for content in content_list
],
}
}
]
)
else:
user_contents.extend(
[{"text": content} for content in content_list]
)
if assistant_contents:
bedrock_messages.append(
{"role": "assistant", "content": assistant_contents}
)
assistant_contents = None
elif role == "system":
system_bedrock_messages.extend(
[{"text": content} for content in content_list]
)
elif role == "assistant":
if not assistant_contents:
assistant_contents = []
assistant_contents.extend(
[
{
"text": content,
}
for content in content_list
]
+ [
{
"toolUse": {
"input": tool_call.arguments,
"name": (
tool_call.tool_name
if isinstance(tool_call.tool_name, str)
else tool_call.tool_name.value
),
"toolUseId": tool_call.call_id,
}
}
for tool_call in message.tool_calls
]
)
if user_contents:
bedrock_messages.append({"role": "user", "content": user_contents})
user_contents = None
else:
# Unknown role
pass
if user_contents:
bedrock_messages.append({"role": "user", "content": user_contents})
if assistant_contents:
bedrock_messages.append(
{"role": "assistant", "content": assistant_contents}
)
if system_bedrock_messages:
return bedrock_messages, system_bedrock_messages
return bedrock_messages, None
@staticmethod
def get_bedrock_inference_config(sampling_params: Optional[SamplingParams]) -> Dict:
inference_config = {}
if sampling_params:
param_mapping = {
"max_tokens": "maxTokens",
"temperature": "temperature",
"top_p": "topP",
}
for k, v in param_mapping.items():
if getattr(sampling_params, k):
inference_config[v] = getattr(sampling_params, k)
return inference_config
@staticmethod
def _tool_parameters_to_input_schema(
tool_parameters: Optional[Dict[str, ToolParamDefinition]]
) -> Dict:
input_schema = {"type": "object"}
if not tool_parameters:
return input_schema
json_properties = {}
required = []
for name, param in tool_parameters.items():
json_property = {
"type": param.param_type,
}
if param.description:
json_property["description"] = param.description
if param.required:
required.append(name)
json_properties[name] = json_property
input_schema["properties"] = json_properties
if required:
input_schema["required"] = required
return input_schema
@staticmethod
def _tools_to_tool_config(
tools: Optional[List[ToolDefinition]], tool_choice: Optional[ToolChoice]
) -> Optional[Dict]:
if not tools:
return None
bedrock_tools = []
for tool in tools:
tool_name = (
tool.tool_name
if isinstance(tool.tool_name, str)
else tool.tool_name.value
)
tool_spec = {
"toolSpec": {
"name": tool_name,
"inputSchema": {
"json": BedrockInferenceAdapter._tool_parameters_to_input_schema(
tool.parameters
),
},
}
}
if tool.description:
tool_spec["toolSpec"]["description"] = tool.description
bedrock_tools.append(tool_spec)
tool_config = {
"tools": bedrock_tools,
}
if tool_choice:
tool_config["toolChoice"] = (
{"any": {}}
if tool_choice.value == ToolChoice.required
else {"auto": {}}
)
return tool_config
async def chat_completion(
self,
model: str,
messages: List[Message],
sampling_params: Optional[SamplingParams] = SamplingParams(),
# zero-shot tool definitions as input to the model
tools: Optional[List[ToolDefinition]] = None,
tool_choice: Optional[ToolChoice] = ToolChoice.auto,
tool_prompt_format: Optional[ToolPromptFormat] = ToolPromptFormat.json,
stream: Optional[bool] = False,
logprobs: Optional[LogProbConfig] = None,
) -> (
AsyncGenerator
): # Union[ChatCompletionResponse, ChatCompletionResponseStreamChunk]:
bedrock_model = self.map_to_provider_model(model)
inference_config = BedrockInferenceAdapter.get_bedrock_inference_config(
sampling_params
)
tool_config = BedrockInferenceAdapter._tools_to_tool_config(tools, tool_choice)
bedrock_messages, system_bedrock_messages = (
BedrockInferenceAdapter._messages_to_bedrock_messages(messages)
)
converse_api_params = {
"modelId": bedrock_model,
"messages": bedrock_messages,
}
if inference_config:
converse_api_params["inferenceConfig"] = inference_config
# Tool use is not supported in streaming mode
if tool_config and not stream:
converse_api_params["toolConfig"] = tool_config
if system_bedrock_messages:
converse_api_params["system"] = system_bedrock_messages
if not stream:
converse_api_res = self.client.converse(**converse_api_params)
output_message = BedrockInferenceAdapter._bedrock_message_to_message(
converse_api_res
)
yield ChatCompletionResponse(
completion_message=output_message,
logprobs=None,
)
else:
converse_stream_api_res = self.client.converse_stream(**converse_api_params)
event_stream = converse_stream_api_res["stream"]
for chunk in event_stream:
if "messageStart" in chunk:
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.start,
delta="",
)
)
elif "contentBlockStart" in chunk:
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.progress,
delta=ToolCallDelta(
content=ToolCall(
tool_name=chunk["contentBlockStart"]["toolUse"][
"name"
],
call_id=chunk["contentBlockStart"]["toolUse"][
"toolUseId"
],
),
parse_status=ToolCallParseStatus.started,
),
)
)
elif "contentBlockDelta" in chunk:
if "text" in chunk["contentBlockDelta"]["delta"]:
delta = chunk["contentBlockDelta"]["delta"]["text"]
else:
delta = ToolCallDelta(
content=ToolCall(
arguments=chunk["contentBlockDelta"]["delta"][
"toolUse"
]["input"]
),
parse_status=ToolCallParseStatus.success,
)
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.progress,
delta=delta,
)
)
elif "contentBlockStop" in chunk:
# Ignored
pass
elif "messageStop" in chunk:
stop_reason = (
BedrockInferenceAdapter._bedrock_stop_reason_to_stop_reason(
chunk["messageStop"]["stopReason"]
)
)
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.complete,
delta="",
stop_reason=stop_reason,
)
)
elif "metadata" in chunk:
# Ignored
pass
else:
# Ignored
pass
# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under the terms described in the LICENSE file in
# the root directory of this source tree.
from typing import * # noqa: F403
import boto3
from botocore.client import BaseClient
from botocore.config import Config
from llama_models.llama3.api.chat_format import ChatFormat
from llama_models.llama3.api.tokenizer import Tokenizer
from llama_stack.providers.utils.inference.model_registry import ModelRegistryHelper
from llama_stack.apis.inference import * # noqa: F403
from llama_stack.providers.adapters.inference.bedrock.config import BedrockConfig
BEDROCK_SUPPORTED_MODELS = {
"Llama3.1-8B-Instruct": "meta.llama3-1-8b-instruct-v1:0",
"Llama3.1-70B-Instruct": "meta.llama3-1-70b-instruct-v1:0",
"Llama3.1-405B-Instruct": "meta.llama3-1-405b-instruct-v1:0",
}
class BedrockInferenceAdapter(ModelRegistryHelper, Inference):
@staticmethod
def _create_bedrock_client(config: BedrockConfig) -> BaseClient:
retries_config = {
k: v
for k, v in dict(
total_max_attempts=config.total_max_attempts,
mode=config.retry_mode,
).items()
if v is not None
}
config_args = {
k: v
for k, v in dict(
region_name=config.region_name,
retries=retries_config if retries_config else None,
connect_timeout=config.connect_timeout,
read_timeout=config.read_timeout,
).items()
if v is not None
}
boto3_config = Config(**config_args)
session_args = {
k: v
for k, v in dict(
aws_access_key_id=config.aws_access_key_id,
aws_secret_access_key=config.aws_secret_access_key,
aws_session_token=config.aws_session_token,
region_name=config.region_name,
profile_name=config.profile_name,
).items()
if v is not None
}
boto3_session = boto3.session.Session(**session_args)
return boto3_session.client("bedrock-runtime", config=boto3_config)
def __init__(self, config: BedrockConfig) -> None:
ModelRegistryHelper.__init__(
self, stack_to_provider_models_map=BEDROCK_SUPPORTED_MODELS
)
self._config = config
self._client = BedrockInferenceAdapter._create_bedrock_client(config)
tokenizer = Tokenizer.get_instance()
self.formatter = ChatFormat(tokenizer)
@property
def client(self) -> BaseClient:
return self._client
async def initialize(self) -> None:
pass
async def shutdown(self) -> None:
self.client.close()
async def completion(
self,
model: str,
content: InterleavedTextMedia,
sampling_params: Optional[SamplingParams] = SamplingParams(),
stream: Optional[bool] = False,
logprobs: Optional[LogProbConfig] = None,
) -> Union[CompletionResponse, CompletionResponseStreamChunk]:
raise NotImplementedError()
@staticmethod
def _bedrock_stop_reason_to_stop_reason(bedrock_stop_reason: str) -> StopReason:
if bedrock_stop_reason == "max_tokens":
return StopReason.out_of_tokens
return StopReason.end_of_turn
@staticmethod
def _builtin_tool_name_to_enum(tool_name_str: str) -> Union[BuiltinTool, str]:
for builtin_tool in BuiltinTool:
if builtin_tool.value == tool_name_str:
return builtin_tool
else:
return tool_name_str
@staticmethod
def _bedrock_message_to_message(converse_api_res: Dict) -> Message:
stop_reason = BedrockInferenceAdapter._bedrock_stop_reason_to_stop_reason(
converse_api_res["stopReason"]
)
bedrock_message = converse_api_res["output"]["message"]
role = bedrock_message["role"]
contents = bedrock_message["content"]
tool_calls = []
text_content = []
for content in contents:
if "toolUse" in content:
tool_use = content["toolUse"]
tool_calls.append(
ToolCall(
tool_name=BedrockInferenceAdapter._builtin_tool_name_to_enum(
tool_use["name"]
),
arguments=tool_use["input"] if "input" in tool_use else None,
call_id=tool_use["toolUseId"],
)
)
elif "text" in content:
text_content.append(content["text"])
return CompletionMessage(
role=role,
content=text_content,
stop_reason=stop_reason,
tool_calls=tool_calls,
)
@staticmethod
def _messages_to_bedrock_messages(
messages: List[Message],
) -> Tuple[List[Dict], Optional[List[Dict]]]:
bedrock_messages = []
system_bedrock_messages = []
user_contents = []
assistant_contents = None
for message in messages:
role = message.role
content_list = (
message.content
if isinstance(message.content, list)
else [message.content]
)
if role == "ipython" or role == "user":
if not user_contents:
user_contents = []
if role == "ipython":
user_contents.extend(
[
{
"toolResult": {
"toolUseId": message.call_id,
"content": [
{"text": content} for content in content_list
],
}
}
]
)
else:
user_contents.extend(
[{"text": content} for content in content_list]
)
if assistant_contents:
bedrock_messages.append(
{"role": "assistant", "content": assistant_contents}
)
assistant_contents = None
elif role == "system":
system_bedrock_messages.extend(
[{"text": content} for content in content_list]
)
elif role == "assistant":
if not assistant_contents:
assistant_contents = []
assistant_contents.extend(
[
{
"text": content,
}
for content in content_list
]
+ [
{
"toolUse": {
"input": tool_call.arguments,
"name": (
tool_call.tool_name
if isinstance(tool_call.tool_name, str)
else tool_call.tool_name.value
),
"toolUseId": tool_call.call_id,
}
}
for tool_call in message.tool_calls
]
)
if user_contents:
bedrock_messages.append({"role": "user", "content": user_contents})
user_contents = None
else:
# Unknown role
pass
if user_contents:
bedrock_messages.append({"role": "user", "content": user_contents})
if assistant_contents:
bedrock_messages.append(
{"role": "assistant", "content": assistant_contents}
)
if system_bedrock_messages:
return bedrock_messages, system_bedrock_messages
return bedrock_messages, None
@staticmethod
def get_bedrock_inference_config(sampling_params: Optional[SamplingParams]) -> Dict:
inference_config = {}
if sampling_params:
param_mapping = {
"max_tokens": "maxTokens",
"temperature": "temperature",
"top_p": "topP",
}
for k, v in param_mapping.items():
if getattr(sampling_params, k):
inference_config[v] = getattr(sampling_params, k)
return inference_config
@staticmethod
def _tool_parameters_to_input_schema(
tool_parameters: Optional[Dict[str, ToolParamDefinition]]
) -> Dict:
input_schema = {"type": "object"}
if not tool_parameters:
return input_schema
json_properties = {}
required = []
for name, param in tool_parameters.items():
json_property = {
"type": param.param_type,
}
if param.description:
json_property["description"] = param.description
if param.required:
required.append(name)
json_properties[name] = json_property
input_schema["properties"] = json_properties
if required:
input_schema["required"] = required
return input_schema
@staticmethod
def _tools_to_tool_config(
tools: Optional[List[ToolDefinition]], tool_choice: Optional[ToolChoice]
) -> Optional[Dict]:
if not tools:
return None
bedrock_tools = []
for tool in tools:
tool_name = (
tool.tool_name
if isinstance(tool.tool_name, str)
else tool.tool_name.value
)
tool_spec = {
"toolSpec": {
"name": tool_name,
"inputSchema": {
"json": BedrockInferenceAdapter._tool_parameters_to_input_schema(
tool.parameters
),
},
}
}
if tool.description:
tool_spec["toolSpec"]["description"] = tool.description
bedrock_tools.append(tool_spec)
tool_config = {
"tools": bedrock_tools,
}
if tool_choice:
tool_config["toolChoice"] = (
{"any": {}}
if tool_choice.value == ToolChoice.required
else {"auto": {}}
)
return tool_config
async def chat_completion(
self,
model: str,
messages: List[Message],
sampling_params: Optional[SamplingParams] = SamplingParams(),
# zero-shot tool definitions as input to the model
tools: Optional[List[ToolDefinition]] = None,
tool_choice: Optional[ToolChoice] = ToolChoice.auto,
tool_prompt_format: Optional[ToolPromptFormat] = ToolPromptFormat.json,
stream: Optional[bool] = False,
logprobs: Optional[LogProbConfig] = None,
) -> (
AsyncGenerator
): # Union[ChatCompletionResponse, ChatCompletionResponseStreamChunk]:
bedrock_model = self.map_to_provider_model(model)
inference_config = BedrockInferenceAdapter.get_bedrock_inference_config(
sampling_params
)
tool_config = BedrockInferenceAdapter._tools_to_tool_config(tools, tool_choice)
bedrock_messages, system_bedrock_messages = (
BedrockInferenceAdapter._messages_to_bedrock_messages(messages)
)
converse_api_params = {
"modelId": bedrock_model,
"messages": bedrock_messages,
}
if inference_config:
converse_api_params["inferenceConfig"] = inference_config
# Tool use is not supported in streaming mode
if tool_config and not stream:
converse_api_params["toolConfig"] = tool_config
if system_bedrock_messages:
converse_api_params["system"] = system_bedrock_messages
if not stream:
converse_api_res = self.client.converse(**converse_api_params)
output_message = BedrockInferenceAdapter._bedrock_message_to_message(
converse_api_res
)
yield ChatCompletionResponse(
completion_message=output_message,
logprobs=None,
)
else:
converse_stream_api_res = self.client.converse_stream(**converse_api_params)
event_stream = converse_stream_api_res["stream"]
for chunk in event_stream:
if "messageStart" in chunk:
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.start,
delta="",
)
)
elif "contentBlockStart" in chunk:
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.progress,
delta=ToolCallDelta(
content=ToolCall(
tool_name=chunk["contentBlockStart"]["toolUse"][
"name"
],
call_id=chunk["contentBlockStart"]["toolUse"][
"toolUseId"
],
),
parse_status=ToolCallParseStatus.started,
),
)
)
elif "contentBlockDelta" in chunk:
if "text" in chunk["contentBlockDelta"]["delta"]:
delta = chunk["contentBlockDelta"]["delta"]["text"]
else:
delta = ToolCallDelta(
content=ToolCall(
arguments=chunk["contentBlockDelta"]["delta"][
"toolUse"
]["input"]
),
parse_status=ToolCallParseStatus.success,
)
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.progress,
delta=delta,
)
)
elif "contentBlockStop" in chunk:
# Ignored
pass
elif "messageStop" in chunk:
stop_reason = (
BedrockInferenceAdapter._bedrock_stop_reason_to_stop_reason(
chunk["messageStop"]["stopReason"]
)
)
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.complete,
delta="",
stop_reason=stop_reason,
)
)
elif "metadata" in chunk:
# Ignored
pass
else:
# Ignored
pass

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llama_stack/providers/adapters/inference/databricks/__init__.py Normal file
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# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under the terms described in the LICENSE file in
# the root directory of this source tree.
from .config import DatabricksImplConfig
from .databricks import DatabricksInferenceAdapter
async def get_adapter_impl(config: DatabricksImplConfig, _deps):
assert isinstance(
config, DatabricksImplConfig
), f"Unexpected config type: {type(config)}"
impl = DatabricksInferenceAdapter(config)
await impl.initialize()
return impl

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llama_stack/providers/adapters/inference/databricks/config.py Normal file
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# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under the terms described in the LICENSE file in
# the root directory of this source tree.
from typing import Optional
from llama_models.schema_utils import json_schema_type
from pydantic import BaseModel, Field
@json_schema_type
class DatabricksImplConfig(BaseModel):
url: str = Field(
default=None,
description="The URL for the Databricks model serving endpoint",
)
api_token: str = Field(
default=None,
description="The Databricks API token",
)

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llama_stack/providers/adapters/inference/databricks/databricks.py Normal file
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# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under the terms described in the LICENSE file in
# the root directory of this source tree.
from typing import AsyncGenerator
from llama_models.llama3.api.chat_format import ChatFormat
from llama_models.llama3.api.datatypes import Message
from llama_models.llama3.api.tokenizer import Tokenizer
from openai import OpenAI
from llama_stack.apis.inference import * # noqa: F403
from llama_stack.providers.utils.inference.model_registry import ModelRegistryHelper
from llama_stack.providers.utils.inference.openai_compat import (
get_sampling_options,
process_chat_completion_response,
process_chat_completion_stream_response,
)
from llama_stack.providers.utils.inference.prompt_adapter import (
chat_completion_request_to_prompt,
)
from .config import DatabricksImplConfig
DATABRICKS_SUPPORTED_MODELS = {
"Llama3.1-70B-Instruct": "databricks-meta-llama-3-1-70b-instruct",
"Llama3.1-405B-Instruct": "databricks-meta-llama-3-1-405b-instruct",
}
class DatabricksInferenceAdapter(ModelRegistryHelper, Inference):
def __init__(self, config: DatabricksImplConfig) -> None:
ModelRegistryHelper.__init__(
self, stack_to_provider_models_map=DATABRICKS_SUPPORTED_MODELS
)
self.config = config
self.formatter = ChatFormat(Tokenizer.get_instance())
async def initialize(self) -> None:
return
async def shutdown(self) -> None:
pass
def completion(self, request: CompletionRequest) -> AsyncGenerator:
raise NotImplementedError()
def chat_completion(
self,
model: str,
messages: List[Message],
sampling_params: Optional[SamplingParams] = SamplingParams(),
tools: Optional[List[ToolDefinition]] = None,
tool_choice: Optional[ToolChoice] = ToolChoice.auto,
tool_prompt_format: Optional[ToolPromptFormat] = ToolPromptFormat.json,
stream: Optional[bool] = False,
logprobs: Optional[LogProbConfig] = None,
) -> AsyncGenerator:
request = ChatCompletionRequest(
model=model,
messages=messages,
sampling_params=sampling_params,
tools=tools or [],
tool_choice=tool_choice,
tool_prompt_format=tool_prompt_format,
stream=stream,
logprobs=logprobs,
)
client = OpenAI(base_url=self.config.url, api_key=self.config.api_token)
if stream:
return self._stream_chat_completion(request, client)
else:
return self._nonstream_chat_completion(request, client)
async def _nonstream_chat_completion(
self, request: ChatCompletionRequest, client: OpenAI
) -> ChatCompletionResponse:
params = self._get_params(request)
r = client.completions.create(**params)
return process_chat_completion_response(request, r, self.formatter)
async def _stream_chat_completion(
self, request: ChatCompletionRequest, client: OpenAI
) -> AsyncGenerator:
params = self._get_params(request)
async def _to_async_generator():
s = client.completions.create(**params)
for chunk in s:
yield chunk
stream = _to_async_generator()
async for chunk in process_chat_completion_stream_response(
request, stream, self.formatter
):
yield chunk
def _get_params(self, request: ChatCompletionRequest) -> dict:
return {
"model": self.map_to_provider_model(request.model),
"prompt": chat_completion_request_to_prompt(request, self.formatter),
"stream": request.stream,
**get_sampling_options(request),
}

222
llama_stack/providers/adapters/inference/fireworks/fireworks.py
View file

@ -10,14 +10,19 @@ from fireworks.client import Fireworks
from llama_models.llama3.api.chat_format import ChatFormat
from llama_models.llama3.api.datatypes import Message, StopReason
from llama_models.llama3.api.datatypes import Message
from llama_models.llama3.api.tokenizer import Tokenizer
from llama_stack.providers.utils.inference.routable import RoutableProviderForModels
from llama_stack.apis.inference import * # noqa: F403
from llama_stack.providers.utils.inference.augment_messages import (
augment_messages_for_tools,
from llama_stack.providers.utils.inference.model_registry import ModelRegistryHelper
from llama_stack.providers.utils.inference.openai_compat import (
get_sampling_options,
process_chat_completion_response,
process_chat_completion_stream_response,
)
from llama_stack.providers.utils.inference.prompt_adapter import (
chat_completion_request_to_prompt,
)
from .config import FireworksImplConfig
@ -27,21 +32,18 @@ FIREWORKS_SUPPORTED_MODELS = {
"Llama3.1-8B-Instruct": "fireworks/llama-v3p1-8b-instruct",
"Llama3.1-70B-Instruct": "fireworks/llama-v3p1-70b-instruct",
"Llama3.1-405B-Instruct": "fireworks/llama-v3p1-405b-instruct",
"Llama3.2-1B-Instruct": "fireworks/llama-v3p2-1b-instruct",
"Llama3.2-3B-Instruct": "fireworks/llama-v3p2-3b-instruct",
}
class FireworksInferenceAdapter(Inference, RoutableProviderForModels):
class FireworksInferenceAdapter(ModelRegistryHelper, Inference):
def __init__(self, config: FireworksImplConfig) -> None:
RoutableProviderForModels.__init__(
ModelRegistryHelper.__init__(
self, stack_to_provider_models_map=FIREWORKS_SUPPORTED_MODELS
)
self.config = config
tokenizer = Tokenizer.get_instance()
self.formatter = ChatFormat(tokenizer)
@property
def client(self) -> Fireworks:
return Fireworks(api_key=self.config.api_key)
self.formatter = ChatFormat(Tokenizer.get_instance())
async def initialize(self) -> None:
return
@ -49,7 +51,7 @@ class FireworksInferenceAdapter(Inference, RoutableProviderForModels):
async def shutdown(self) -> None:
pass
async def completion(
def completion(
self,
model: str,
content: InterleavedTextMedia,
@ -59,27 +61,7 @@ class FireworksInferenceAdapter(Inference, RoutableProviderForModels):
) -> AsyncGenerator:
raise NotImplementedError()
def _messages_to_fireworks_messages(self, messages: list[Message]) -> list:
fireworks_messages = []
for message in messages:
if message.role == "ipython":
role = "tool"
else:
role = message.role
fireworks_messages.append({"role": role, "content": message.content})
return fireworks_messages
def get_fireworks_chat_options(self, request: ChatCompletionRequest) -> dict:
options = {}
if request.sampling_params is not None:
for attr in {"temperature", "top_p", "top_k", "max_tokens"}:
if getattr(request.sampling_params, attr):
options[attr] = getattr(request.sampling_params, attr)
return options
async def chat_completion(
def chat_completion(
self,
model: str,
messages: List[Message],
@ -101,147 +83,41 @@ class FireworksInferenceAdapter(Inference, RoutableProviderForModels):
logprobs=logprobs,
)
messages = augment_messages_for_tools(request)
# accumulate sampling params and other options to pass to fireworks
options = self.get_fireworks_chat_options(request)
fireworks_model = self.map_to_provider_model(request.model)
if not request.stream:
r = await self.client.chat.completions.acreate(
model=fireworks_model,
messages=self._messages_to_fireworks_messages(messages),
stream=False,
**options,
)
stop_reason = None
if r.choices[0].finish_reason:
if r.choices[0].finish_reason == "stop":
stop_reason = StopReason.end_of_turn
elif r.choices[0].finish_reason == "length":
stop_reason = StopReason.out_of_tokens
completion_message = self.formatter.decode_assistant_message_from_content(
r.choices[0].message.content, stop_reason
)
yield ChatCompletionResponse(
completion_message=completion_message,
logprobs=None,
)
client = Fireworks(api_key=self.config.api_key)
if stream:
return self._stream_chat_completion(request, client)
else:
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.start,
delta="",
)
)
return self._nonstream_chat_completion(request, client)
buffer = ""
ipython = False
stop_reason = None
async def _nonstream_chat_completion(
self, request: ChatCompletionRequest, client: Fireworks
) -> ChatCompletionResponse:
params = self._get_params(request)
r = await client.completion.acreate(**params)
return process_chat_completion_response(request, r, self.formatter)
async for chunk in self.client.chat.completions.acreate(
model=fireworks_model,
messages=self._messages_to_fireworks_messages(messages),
stream=True,
**options,
):
if chunk.choices[0].finish_reason:
if stop_reason is None and chunk.choices[0].finish_reason == "stop":
stop_reason = StopReason.end_of_turn
elif (
stop_reason is None
and chunk.choices[0].finish_reason == "length"
):
stop_reason = StopReason.out_of_tokens
break
async def _stream_chat_completion(
self, request: ChatCompletionRequest, client: Fireworks
) -> AsyncGenerator:
params = self._get_params(request)
text = chunk.choices[0].delta.content
if text is None:
continue
stream = client.completion.acreate(**params)
async for chunk in process_chat_completion_stream_response(
request, stream, self.formatter
):
yield chunk
# check if its a tool call ( aka starts with <|python_tag|> )
if not ipython and text.startswith("<|python_tag|>"):
ipython = True
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.progress,
delta=ToolCallDelta(
content="",
parse_status=ToolCallParseStatus.started,
),
)
)
buffer += text
continue
def _get_params(self, request: ChatCompletionRequest) -> dict:
prompt = chat_completion_request_to_prompt(request, self.formatter)
# Fireworks always prepends with BOS
if prompt.startswith("<|begin_of_text|>"):
prompt = prompt[len("<|begin_of_text|>") :]
if ipython:
if text == "<|eot_id|>":
stop_reason = StopReason.end_of_turn
text = ""
continue
elif text == "<|eom_id|>":
stop_reason = StopReason.end_of_message
text = ""
continue
buffer += text
delta = ToolCallDelta(
content=text,
parse_status=ToolCallParseStatus.in_progress,
)
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.progress,
delta=delta,
stop_reason=stop_reason,
)
)
else:
buffer += text
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.progress,
delta=text,
stop_reason=stop_reason,
)
)
# parse tool calls and report errors
message = self.formatter.decode_assistant_message_from_content(
buffer, stop_reason
)
parsed_tool_calls = len(message.tool_calls) > 0
if ipython and not parsed_tool_calls:
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.progress,
delta=ToolCallDelta(
content="",
parse_status=ToolCallParseStatus.failure,
),
stop_reason=stop_reason,
)
)
for tool_call in message.tool_calls:
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.progress,
delta=ToolCallDelta(
content=tool_call,
parse_status=ToolCallParseStatus.success,
),
stop_reason=stop_reason,
)
)
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.complete,
delta="",
stop_reason=stop_reason,
)
)
options = get_sampling_options(request)
options.setdefault("max_tokens", 512)
return {
"model": self.map_to_provider_model(request.model),
"prompt": prompt,
"stream": request.stream,
**options,
}

4
llama_stack/providers/adapters/inference/ollama/__init__.py
View file

@ -7,6 +7,10 @@
from llama_stack.distribution.datatypes import RemoteProviderConfig
class OllamaImplConfig(RemoteProviderConfig):
port: int = 11434
async def get_adapter_impl(config: RemoteProviderConfig, _deps):
from .ollama import OllamaInferenceAdapter

277
llama_stack/providers/adapters/inference/ollama/ollama.py
View file

@ -9,34 +9,36 @@ from typing import AsyncGenerator
import httpx
from llama_models.llama3.api.chat_format import ChatFormat
from llama_models.llama3.api.datatypes import Message, StopReason
from llama_models.llama3.api.datatypes import Message
from llama_models.llama3.api.tokenizer import Tokenizer
from ollama import AsyncClient
from llama_stack.apis.inference import * # noqa: F403
from llama_stack.providers.utils.inference.augment_messages import (
augment_messages_for_tools,
from llama_stack.providers.utils.inference.openai_compat import (
get_sampling_options,
OpenAICompatCompletionChoice,
OpenAICompatCompletionResponse,
process_chat_completion_response,
process_chat_completion_stream_response,
)
from llama_stack.providers.utils.inference.prompt_adapter import (
chat_completion_request_to_prompt,
)
from llama_stack.providers.utils.inference.routable import RoutableProviderForModels
# TODO: Eventually this will move to the llama cli model list command
# mapping of Model SKUs to ollama models
OLLAMA_SUPPORTED_SKUS = {
# "Llama3.1-8B-Instruct": "llama3.1",
OLLAMA_SUPPORTED_MODELS = {
"Llama3.1-8B-Instruct": "llama3.1:8b-instruct-fp16",
"Llama3.1-70B-Instruct": "llama3.1:70b-instruct-fp16",
"Llama3.2-1B-Instruct": "llama3.2:1b-instruct-fp16",
"Llama3.2-3B-Instruct": "llama3.2:3b-instruct-fp16",
"Llama-Guard-3-8B": "xe/llamaguard3:latest",
}
class OllamaInferenceAdapter(Inference, RoutableProviderForModels):
class OllamaInferenceAdapter(Inference):
def __init__(self, url: str) -> None:
RoutableProviderForModels.__init__(
self, stack_to_provider_models_map=OLLAMA_SUPPORTED_SKUS
)
self.url = url
tokenizer = Tokenizer.get_instance()
self.formatter = ChatFormat(tokenizer)
self.formatter = ChatFormat(Tokenizer.get_instance())
@property
def client(self) -> AsyncClient:
@ -54,7 +56,29 @@ class OllamaInferenceAdapter(Inference, RoutableProviderForModels):
async def shutdown(self) -> None:
pass
async def completion(
async def register_model(self, model: ModelDef) -> None:
if model.identifier not in OLLAMA_SUPPORTED_MODELS:
raise ValueError(
f"Unsupported model {model.identifier}. Supported models: {OLLAMA_SUPPORTED_MODELS.keys()}"
)
ollama_model = OLLAMA_SUPPORTED_MODELS[model.identifier]
res = await self.client.ps()
need_model_pull = True
for r in res["models"]:
if ollama_model == r["model"]:
need_model_pull = False
break
print(f"Ollama model `{ollama_model}` needs pull -> {need_model_pull}")
if need_model_pull:
print(f"Pulling model: {ollama_model}")
status = await self.client.pull(ollama_model)
assert (
status["status"] == "success"
), f"Failed to pull model {self.model} in ollama"
def completion(
self,
model: str,
content: InterleavedTextMedia,
@ -64,32 +88,7 @@ class OllamaInferenceAdapter(Inference, RoutableProviderForModels):
) -> AsyncGenerator:
raise NotImplementedError()
def _messages_to_ollama_messages(self, messages: list[Message]) -> list:
ollama_messages = []
for message in messages:
if message.role == "ipython":
role = "tool"
else:
role = message.role
ollama_messages.append({"role": role, "content": message.content})
return ollama_messages
def get_ollama_chat_options(self, request: ChatCompletionRequest) -> dict:
options = {}
if request.sampling_params is not None:
for attr in {"temperature", "top_p", "top_k", "max_tokens"}:
if getattr(request.sampling_params, attr):
options[attr] = getattr(request.sampling_params, attr)
if (
request.sampling_params.repetition_penalty is not None
and request.sampling_params.repetition_penalty != 1.0
):
options["repeat_penalty"] = request.sampling_params.repetition_penalty
return options
async def chat_completion(
def chat_completion(
self,
model: str,
messages: List[Message],
@ -110,156 +109,54 @@ class OllamaInferenceAdapter(Inference, RoutableProviderForModels):
stream=stream,
logprobs=logprobs,
)
messages = augment_messages_for_tools(request)
# accumulate sampling params and other options to pass to ollama
options = self.get_ollama_chat_options(request)
ollama_model = self.map_to_provider_model(request.model)
res = await self.client.ps()
need_model_pull = True
for r in res["models"]:
if ollama_model == r["model"]:
need_model_pull = False
break
if need_model_pull:
print(f"Pulling model: {ollama_model}")
status = await self.client.pull(ollama_model)
assert (
status["status"] == "success"
), f"Failed to pull model {self.model} in ollama"
if not request.stream:
r = await self.client.chat(
model=ollama_model,
messages=self._messages_to_ollama_messages(messages),
stream=False,
options=options,
)
stop_reason = None
if r["done"]:
if r["done_reason"] == "stop":
stop_reason = StopReason.end_of_turn
elif r["done_reason"] == "length":
stop_reason = StopReason.out_of_tokens
completion_message = self.formatter.decode_assistant_message_from_content(
r["message"]["content"], stop_reason
)
yield ChatCompletionResponse(
completion_message=completion_message,
logprobs=None,
)
if stream:
return self._stream_chat_completion(request)
else:
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.start,
delta="",
return self._nonstream_chat_completion(request)
def _get_params(self, request: ChatCompletionRequest) -> dict:
return {
"model": OLLAMA_SUPPORTED_MODELS[request.model],
"prompt": chat_completion_request_to_prompt(request, self.formatter),
"options": get_sampling_options(request),
"raw": True,
"stream": request.stream,
}
async def _nonstream_chat_completion(
self, request: ChatCompletionRequest
) -> ChatCompletionResponse:
params = self._get_params(request)
r = await self.client.generate(**params)
assert isinstance(r, dict)
choice = OpenAICompatCompletionChoice(
finish_reason=r["done_reason"] if r["done"] else None,
text=r["response"],
)
response = OpenAICompatCompletionResponse(
choices=[choice],
)
return process_chat_completion_response(request, response, self.formatter)
async def _stream_chat_completion(
self, request: ChatCompletionRequest
) -> AsyncGenerator:
params = self._get_params(request)
async def _generate_and_convert_to_openai_compat():
s = await self.client.generate(**params)
async for chunk in s:
choice = OpenAICompatCompletionChoice(
finish_reason=chunk["done_reason"] if chunk["done"] else None,
text=chunk["response"],
)
)
stream = await self.client.chat(
model=ollama_model,
messages=self._messages_to_ollama_messages(messages),
stream=True,
options=options,
)
buffer = ""
ipython = False
stop_reason = None
async for chunk in stream:
if chunk["done"]:
if stop_reason is None and chunk["done_reason"] == "stop":
stop_reason = StopReason.end_of_turn
elif stop_reason is None and chunk["done_reason"] == "length":
stop_reason = StopReason.out_of_tokens
break
text = chunk["message"]["content"]
# check if its a tool call ( aka starts with <|python_tag|> )
if not ipython and text.startswith("<|python_tag|>"):
ipython = True
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.progress,
delta=ToolCallDelta(
content="",
parse_status=ToolCallParseStatus.started,
),
)
)
buffer += text
continue
if ipython:
if text == "<|eot_id|>":
stop_reason = StopReason.end_of_turn
text = ""
continue
elif text == "<|eom_id|>":
stop_reason = StopReason.end_of_message
text = ""
continue
buffer += text
delta = ToolCallDelta(
content=text,
parse_status=ToolCallParseStatus.in_progress,
)
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.progress,
delta=delta,
stop_reason=stop_reason,
)
)
else:
buffer += text
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.progress,
delta=text,
stop_reason=stop_reason,
)
)
# parse tool calls and report errors
message = self.formatter.decode_assistant_message_from_content(
buffer, stop_reason
)
parsed_tool_calls = len(message.tool_calls) > 0
if ipython and not parsed_tool_calls:
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.progress,
delta=ToolCallDelta(
content="",
parse_status=ToolCallParseStatus.failure,
),
stop_reason=stop_reason,
)
yield OpenAICompatCompletionResponse(
choices=[choice],
)
for tool_call in message.tool_calls:
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.progress,
delta=ToolCallDelta(
content=tool_call,
parse_status=ToolCallParseStatus.success,
),
stop_reason=stop_reason,
)
)
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.complete,
delta="",
stop_reason=stop_reason,
)
)
stream = _generate_and_convert_to_openai_compat()
async for chunk in process_chat_completion_stream_response(
request, stream, self.formatter
):
yield chunk

6
llama_stack/providers/adapters/inference/sample/sample.py
View file

@ -9,14 +9,12 @@ from .config import SampleConfig
from llama_stack.apis.inference import * # noqa: F403
from llama_stack.distribution.datatypes import RoutableProvider
class SampleInferenceImpl(Inference, RoutableProvider):
class SampleInferenceImpl(Inference):
def __init__(self, config: SampleConfig):
self.config = config
async def validate_routing_keys(self, routing_keys: list[str]) -> None:
async def register_model(self, model: ModelDef) -> None:
# these are the model names the Llama Stack will use to route requests to this provider
# perform validation here if necessary
pass

2
llama_stack/providers/adapters/inference/tgi/config.py
View file

@ -34,7 +34,7 @@ class InferenceEndpointImplConfig(BaseModel):
@json_schema_type
class InferenceAPIImplConfig(BaseModel):
model_id: str = Field(
huggingface_repo: str = Field(
description="The model ID of the model on the Hugging Face Hub (e.g. 'meta-llama/Meta-Llama-3.1-70B-Instruct')",
)
api_token: Optional[str] = Field(

239
llama_stack/providers/adapters/inference/tgi/tgi.py
View file

@ -10,14 +10,19 @@ from typing import AsyncGenerator
from huggingface_hub import AsyncInferenceClient, HfApi
from llama_models.llama3.api.chat_format import ChatFormat
from llama_models.llama3.api.datatypes import StopReason
from llama_models.llama3.api.tokenizer import Tokenizer
from llama_stack.distribution.datatypes import RoutableProvider
from llama_models.sku_list import resolve_model
from llama_stack.apis.inference import * # noqa: F403
from llama_stack.providers.utils.inference.augment_messages import (
augment_messages_for_tools,
from llama_stack.providers.utils.inference.openai_compat import (
get_sampling_options,
OpenAICompatCompletionChoice,
OpenAICompatCompletionResponse,
process_chat_completion_response,
process_chat_completion_stream_response,
)
from llama_stack.providers.utils.inference.prompt_adapter import (
chat_completion_request_to_model_input_info,
)
from .config import InferenceAPIImplConfig, InferenceEndpointImplConfig, TGIImplConfig
@ -25,24 +30,31 @@ from .config import InferenceAPIImplConfig, InferenceEndpointImplConfig, TGIImpl
logger = logging.getLogger(__name__)
class _HfAdapter(Inference, RoutableProvider):
class _HfAdapter(Inference):
client: AsyncInferenceClient
max_tokens: int
model_id: str
def __init__(self) -> None:
self.tokenizer = Tokenizer.get_instance()
self.formatter = ChatFormat(self.tokenizer)
self.formatter = ChatFormat(Tokenizer.get_instance())
async def validate_routing_keys(self, routing_keys: list[str]) -> None:
# these are the model names the Llama Stack will use to route requests to this provider
# perform validation here if necessary
pass
async def register_model(self, model: ModelDef) -> None:
resolved_model = resolve_model(model.identifier)
if resolved_model is None:
raise ValueError(f"Unknown model: {model.identifier}")
if not resolved_model.huggingface_repo:
raise ValueError(
f"Model {model.identifier} does not have a HuggingFace repo"
)
if self.model_id != resolved_model.huggingface_repo:
raise ValueError(f"Model mismatch: {model.identifier} != {self.model_id}")
async def shutdown(self) -> None:
pass
async def completion(
def completion(
self,
model: str,
content: InterleavedTextMedia,
@ -52,16 +64,7 @@ class _HfAdapter(Inference, RoutableProvider):
) -> AsyncGenerator:
raise NotImplementedError()
def get_chat_options(self, request: ChatCompletionRequest) -> dict:
options = {}
if request.sampling_params is not None:
for attr in {"temperature", "top_p", "top_k", "max_tokens"}:
if getattr(request.sampling_params, attr):
options[attr] = getattr(request.sampling_params, attr)
return options
async def chat_completion(
def chat_completion(
self,
model: str,
messages: List[Message],
@ -83,146 +86,64 @@ class _HfAdapter(Inference, RoutableProvider):
logprobs=logprobs,
)
messages = augment_messages_for_tools(request)
model_input = self.formatter.encode_dialog_prompt(messages)
prompt = self.tokenizer.decode(model_input.tokens)
if stream:
return self._stream_chat_completion(request)
else:
return self._nonstream_chat_completion(request)
input_tokens = len(model_input.tokens)
async def _nonstream_chat_completion(
self, request: ChatCompletionRequest
) -> ChatCompletionResponse:
params = self._get_params(request)
r = await self.client.text_generation(**params)
choice = OpenAICompatCompletionChoice(
finish_reason=r.details.finish_reason,
text="".join(t.text for t in r.details.tokens),
)
response = OpenAICompatCompletionResponse(
choices=[choice],
)
return process_chat_completion_response(request, response, self.formatter)
async def _stream_chat_completion(
self, request: ChatCompletionRequest
) -> AsyncGenerator:
params = self._get_params(request)
async def _generate_and_convert_to_openai_compat():
s = await self.client.text_generation(**params)
async for chunk in s:
token_result = chunk.token
choice = OpenAICompatCompletionChoice(text=token_result.text)
yield OpenAICompatCompletionResponse(
choices=[choice],
)
stream = _generate_and_convert_to_openai_compat()
async for chunk in process_chat_completion_stream_response(
request, stream, self.formatter
):
yield chunk
def _get_params(self, request: ChatCompletionRequest) -> dict:
prompt, input_tokens = chat_completion_request_to_model_input_info(
request, self.formatter
)
max_new_tokens = min(
request.sampling_params.max_tokens or (self.max_tokens - input_tokens),
self.max_tokens - input_tokens - 1,
)
print(f"Calculated max_new_tokens: {max_new_tokens}")
options = self.get_chat_options(request)
if not request.stream:
response = await self.client.text_generation(
prompt=prompt,
stream=False,
details=True,
max_new_tokens=max_new_tokens,
stop_sequences=["<|eom_id|>", "<|eot_id|>"],
**options,
)
stop_reason = None
if response.details.finish_reason:
if response.details.finish_reason in ["stop", "eos_token"]:
stop_reason = StopReason.end_of_turn
elif response.details.finish_reason == "length":
stop_reason = StopReason.out_of_tokens
completion_message = self.formatter.decode_assistant_message_from_content(
response.generated_text,
stop_reason,
)
yield ChatCompletionResponse(
completion_message=completion_message,
logprobs=None,
)
else:
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.start,
delta="",
)
)
buffer = ""
ipython = False
stop_reason = None
tokens = []
async for response in await self.client.text_generation(
prompt=prompt,
stream=True,
details=True,
max_new_tokens=max_new_tokens,
stop_sequences=["<|eom_id|>", "<|eot_id|>"],
**options,
):
token_result = response.token
buffer += token_result.text
tokens.append(token_result.id)
if not ipython and buffer.startswith("<|python_tag|>"):
ipython = True
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.progress,
delta=ToolCallDelta(
content="",
parse_status=ToolCallParseStatus.started,
),
)
)
buffer = buffer[len("<|python_tag|>") :]
continue
if token_result.text == "<|eot_id|>":
stop_reason = StopReason.end_of_turn
text = ""
elif token_result.text == "<|eom_id|>":
stop_reason = StopReason.end_of_message
text = ""
else:
text = token_result.text
if ipython:
delta = ToolCallDelta(
content=text,
parse_status=ToolCallParseStatus.in_progress,
)
else:
delta = text
if stop_reason is None:
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.progress,
delta=delta,
stop_reason=stop_reason,
)
)
if stop_reason is None:
stop_reason = StopReason.out_of_tokens
# parse tool calls and report errors
message = self.formatter.decode_assistant_message(tokens, stop_reason)
parsed_tool_calls = len(message.tool_calls) > 0
if ipython and not parsed_tool_calls:
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.progress,
delta=ToolCallDelta(
content="",
parse_status=ToolCallParseStatus.failure,
),
stop_reason=stop_reason,
)
)
for tool_call in message.tool_calls:
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.progress,
delta=ToolCallDelta(
content=tool_call,
parse_status=ToolCallParseStatus.success,
),
stop_reason=stop_reason,
)
)
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.complete,
delta="",
stop_reason=stop_reason,
)
)
options = get_sampling_options(request)
return dict(
prompt=prompt,
stream=request.stream,
details=True,
max_new_tokens=max_new_tokens,
stop_sequences=["<|eom_id|>", "<|eot_id|>"],
**options,
)
class TGIAdapter(_HfAdapter):
@ -236,7 +157,7 @@ class TGIAdapter(_HfAdapter):
class InferenceAPIAdapter(_HfAdapter):
async def initialize(self, config: InferenceAPIImplConfig) -> None:
self.client = AsyncInferenceClient(
model=config.model_id, token=config.api_token
model=config.huggingface_repo, token=config.api_token
)
endpoint_info = await self.client.get_endpoint_info()
self.max_tokens = endpoint_info["max_total_tokens"]

215
llama_stack/providers/adapters/inference/together/together.py
View file

@ -8,17 +8,22 @@ from typing import AsyncGenerator
from llama_models.llama3.api.chat_format import ChatFormat
from llama_models.llama3.api.datatypes import Message, StopReason
from llama_models.llama3.api.datatypes import Message
from llama_models.llama3.api.tokenizer import Tokenizer
from together import Together
from llama_stack.apis.inference import * # noqa: F403
from llama_stack.distribution.request_headers import NeedsRequestProviderData
from llama_stack.providers.utils.inference.augment_messages import (
augment_messages_for_tools,
from llama_stack.providers.utils.inference.model_registry import ModelRegistryHelper
from llama_stack.providers.utils.inference.openai_compat import (
get_sampling_options,
process_chat_completion_response,
process_chat_completion_stream_response,
)
from llama_stack.providers.utils.inference.prompt_adapter import (
chat_completion_request_to_prompt,
)
from llama_stack.providers.utils.inference.routable import RoutableProviderForModels
from .config import TogetherImplConfig
@ -34,19 +39,14 @@ TOGETHER_SUPPORTED_MODELS = {
class TogetherInferenceAdapter(
Inference, NeedsRequestProviderData, RoutableProviderForModels
ModelRegistryHelper, Inference, NeedsRequestProviderData
):
def __init__(self, config: TogetherImplConfig) -> None:
RoutableProviderForModels.__init__(
ModelRegistryHelper.__init__(
self, stack_to_provider_models_map=TOGETHER_SUPPORTED_MODELS
)
self.config = config
tokenizer = Tokenizer.get_instance()
self.formatter = ChatFormat(tokenizer)
@property
def client(self) -> Together:
return Together(api_key=self.config.api_key)
self.formatter = ChatFormat(Tokenizer.get_instance())
async def initialize(self) -> None:
return
@ -64,27 +64,7 @@ class TogetherInferenceAdapter(
) -> AsyncGenerator:
raise NotImplementedError()
def _messages_to_together_messages(self, messages: list[Message]) -> list:
together_messages = []
for message in messages:
if message.role == "ipython":
role = "tool"
else:
role = message.role
together_messages.append({"role": role, "content": message.content})
return together_messages
def get_together_chat_options(self, request: ChatCompletionRequest) -> dict:
options = {}
if request.sampling_params is not None:
for attr in {"temperature", "top_p", "top_k", "max_tokens"}:
if getattr(request.sampling_params, attr):
options[attr] = getattr(request.sampling_params, attr)
return options
async def chat_completion(
def chat_completion(
self,
model: str,
messages: List[Message],
@ -95,7 +75,6 @@ class TogetherInferenceAdapter(
stream: Optional[bool] = False,
logprobs: Optional[LogProbConfig] = None,
) -> AsyncGenerator:
together_api_key = None
if self.config.api_key is not None:
together_api_key = self.config.api_key
@ -108,7 +87,6 @@ class TogetherInferenceAdapter(
together_api_key = provider_data.together_api_key
client = Together(api_key=together_api_key)
# wrapper request to make it easier to pass around (internal only, not exposed to API)
request = ChatCompletionRequest(
model=model,
messages=messages,
@ -120,146 +98,39 @@ class TogetherInferenceAdapter(
logprobs=logprobs,
)
# accumulate sampling params and other options to pass to together
options = self.get_together_chat_options(request)
together_model = self.map_to_provider_model(request.model)
messages = augment_messages_for_tools(request)
if not request.stream:
# TODO: might need to add back an async here
r = client.chat.completions.create(
model=together_model,
messages=self._messages_to_together_messages(messages),
stream=False,
**options,
)
stop_reason = None
if r.choices[0].finish_reason:
if (
r.choices[0].finish_reason == "stop"
or r.choices[0].finish_reason == "eos"
):
stop_reason = StopReason.end_of_turn
elif r.choices[0].finish_reason == "length":
stop_reason = StopReason.out_of_tokens
completion_message = self.formatter.decode_assistant_message_from_content(
r.choices[0].message.content, stop_reason
)
yield ChatCompletionResponse(
completion_message=completion_message,
logprobs=None,
)
if stream:
return self._stream_chat_completion(request, client)
else:
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.start,
delta="",
)
)
return self._nonstream_chat_completion(request, client)
buffer = ""
ipython = False
stop_reason = None
async def _nonstream_chat_completion(
self, request: ChatCompletionRequest, client: Together
) -> ChatCompletionResponse:
params = self._get_params(request)
r = client.completions.create(**params)
return process_chat_completion_response(request, r, self.formatter)
for chunk in client.chat.completions.create(
model=together_model,
messages=self._messages_to_together_messages(messages),
stream=True,
**options,
):
if finish_reason := chunk.choices[0].finish_reason:
if stop_reason is None and finish_reason in ["stop", "eos"]:
stop_reason = StopReason.end_of_turn
elif stop_reason is None and finish_reason == "length":
stop_reason = StopReason.out_of_tokens
break
async def _stream_chat_completion(
self, request: ChatCompletionRequest, client: Together
) -> AsyncGenerator:
params = self._get_params(request)
text = chunk.choices[0].delta.content
if text is None:
continue
# if we shift to TogetherAsyncClient, we won't need this wrapper
async def _to_async_generator():
s = client.completions.create(**params)
for chunk in s:
yield chunk
# check if its a tool call ( aka starts with <|python_tag|> )
if not ipython and text.startswith("<|python_tag|>"):
ipython = True
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.progress,
delta=ToolCallDelta(
content="",
parse_status=ToolCallParseStatus.started,
),
)
)
buffer += text
continue
stream = _to_async_generator()
async for chunk in process_chat_completion_stream_response(
request, stream, self.formatter
):
yield chunk
if ipython:
if text == "<|eot_id|>":
stop_reason = StopReason.end_of_turn
text = ""
continue
elif text == "<|eom_id|>":
stop_reason = StopReason.end_of_message
text = ""
continue
buffer += text
delta = ToolCallDelta(
content=text,
parse_status=ToolCallParseStatus.in_progress,
)
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.progress,
delta=delta,
stop_reason=stop_reason,
)
)
else:
buffer += text
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.progress,
delta=text,
stop_reason=stop_reason,
)
)
# parse tool calls and report errors
message = self.formatter.decode_assistant_message_from_content(
buffer, stop_reason
)
parsed_tool_calls = len(message.tool_calls) > 0
if ipython and not parsed_tool_calls:
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.progress,
delta=ToolCallDelta(
content="",
parse_status=ToolCallParseStatus.failure,
),
stop_reason=stop_reason,
)
)
for tool_call in message.tool_calls:
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.progress,
delta=ToolCallDelta(
content=tool_call,
parse_status=ToolCallParseStatus.success,
),
stop_reason=stop_reason,
)
)
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.complete,
delta="",
stop_reason=stop_reason,
)
)
def _get_params(self, request: ChatCompletionRequest) -> dict:
return {
"model": self.map_to_provider_model(request.model),
"prompt": chat_completion_request_to_prompt(request, self.formatter),
"stream": request.stream,
**get_sampling_options(request),
}

49
llama_stack/providers/adapters/memory/chroma/chroma.py
View file

@ -5,7 +5,6 @@
# the root directory of this source tree.
import json
import uuid
from typing import List
from urllib.parse import urlparse
@ -13,7 +12,6 @@ import chromadb
from numpy.typing import NDArray
from llama_stack.apis.memory import * # noqa: F403
from llama_stack.distribution.datatypes import RoutableProvider
from llama_stack.providers.utils.memory.vector_store import (
BankWithIndex,
@ -65,7 +63,7 @@ class ChromaIndex(EmbeddingIndex):
return QueryDocumentsResponse(chunks=chunks, scores=scores)
class ChromaMemoryAdapter(Memory, RoutableProvider):
class ChromaMemoryAdapter(Memory):
def __init__(self, url: str) -> None:
print(f"Initializing ChromaMemoryAdapter with url: {url}")
url = url.rstrip("/")
@ -93,48 +91,33 @@ class ChromaMemoryAdapter(Memory, RoutableProvider):
async def shutdown(self) -> None:
pass
async def validate_routing_keys(self, routing_keys: List[str]) -> None:
print(f"[chroma] Registering memory bank routing keys: {routing_keys}")
pass
async def create_memory_bank(
async def register_memory_bank(
self,
name: str,
config: MemoryBankConfig,
url: Optional[URL] = None,
) -> MemoryBank:
bank_id = str(uuid.uuid4())
bank = MemoryBank(
bank_id=bank_id,
name=name,
config=config,
url=url,
)
collection = await self.client.create_collection(
name=bank_id,
metadata={"bank": bank.json()},
memory_bank: MemoryBankDef,
) -> None:
assert (
memory_bank.type == MemoryBankType.vector.value
), f"Only vector banks are supported {memory_bank.type}"
collection = await self.client.get_or_create_collection(
name=memory_bank.identifier,
)
bank_index = BankWithIndex(
bank=bank, index=ChromaIndex(self.client, collection)
bank=memory_bank, index=ChromaIndex(self.client, collection)
)
self.cache[bank_id] = bank_index
return bank
async def get_memory_bank(self, bank_id: str) -> Optional[MemoryBank]:
bank_index = await self._get_and_cache_bank_index(bank_id)
if bank_index is None:
return None
return bank_index.bank
self.cache[memory_bank.identifier] = bank_index
async def _get_and_cache_bank_index(self, bank_id: str) -> Optional[BankWithIndex]:
if bank_id in self.cache:
return self.cache[bank_id]
bank = await self.memory_bank_store.get_memory_bank(bank_id)
if bank is None:
raise ValueError(f"Bank {bank_id} not found")
collections = await self.client.list_collections()
for collection in collections:
if collection.name == bank_id:
print(collection.metadata)
bank = MemoryBank(**json.loads(collection.metadata["bank"]))
index = BankWithIndex(
bank=bank,
index=ChromaIndex(self.client, collection),

90
llama_stack/providers/adapters/memory/pgvector/pgvector.py
View file

@ -4,18 +4,14 @@
# This source code is licensed under the terms described in the LICENSE file in
# the root directory of this source tree.
import uuid
from typing import List, Tuple
from typing import List
import psycopg2
from numpy.typing import NDArray
from psycopg2 import sql
from psycopg2.extras import execute_values, Json
from pydantic import BaseModel
from llama_stack.apis.memory import * # noqa: F403
from llama_stack.distribution.datatypes import RoutableProvider
from llama_stack.providers.utils.memory.vector_store import (
ALL_MINILM_L6_V2_DIMENSION,
@ -32,33 +28,6 @@ def check_extension_version(cur):
return result[0] if result else None
def upsert_models(cur, keys_models: List[Tuple[str, BaseModel]]):
query = sql.SQL(
"""
INSERT INTO metadata_store (key, data)
VALUES %s
ON CONFLICT (key) DO UPDATE
SET data = EXCLUDED.data
"""
)
values = [(key, Json(model.dict())) for key, model in keys_models]
execute_values(cur, query, values, template="(%s, %s)")
def load_models(cur, keys: List[str], cls):
query = "SELECT key, data FROM metadata_store"
if keys:
placeholders = ",".join(["%s"] * len(keys))
query += f" WHERE key IN ({placeholders})"
cur.execute(query, keys)
else:
cur.execute(query)
rows = cur.fetchall()
return [cls(**row["data"]) for row in rows]
class PGVectorIndex(EmbeddingIndex):
def __init__(self, bank: MemoryBank, dimension: int, cursor):
self.cursor = cursor
@ -119,7 +88,7 @@ class PGVectorIndex(EmbeddingIndex):
return QueryDocumentsResponse(chunks=chunks, scores=scores)
class PGVectorMemoryAdapter(Memory, RoutableProvider):
class PGVectorMemoryAdapter(Memory):
def __init__(self, config: PGVectorConfig) -> None:
print(f"Initializing PGVectorMemoryAdapter -> {config.host}:{config.port}")
self.config = config
@ -144,14 +113,6 @@ class PGVectorMemoryAdapter(Memory, RoutableProvider):
else:
raise RuntimeError("Vector extension is not installed.")
self.cursor.execute(
"""
CREATE TABLE IF NOT EXISTS metadata_store (
key TEXT PRIMARY KEY,
data JSONB
)
"""
)
except Exception as e:
import traceback
@ -161,51 +122,28 @@ class PGVectorMemoryAdapter(Memory, RoutableProvider):
async def shutdown(self) -> None:
pass
async def validate_routing_keys(self, routing_keys: List[str]) -> None:
print(f"[pgvector] Registering memory bank routing keys: {routing_keys}")
pass
async def create_memory_bank(
async def register_memory_bank(
self,
name: str,
config: MemoryBankConfig,
url: Optional[URL] = None,
) -> MemoryBank:
bank_id = str(uuid.uuid4())
bank = MemoryBank(
bank_id=bank_id,
name=name,
config=config,
url=url,
)
upsert_models(
self.cursor,
[
(bank.bank_id, bank),
],
)
memory_bank: MemoryBankDef,
) -> None:
assert (
memory_bank.type == MemoryBankType.vector.value
), f"Only vector banks are supported {memory_bank.type}"
index = BankWithIndex(
bank=bank,
index=PGVectorIndex(bank, ALL_MINILM_L6_V2_DIMENSION, self.cursor),
bank=memory_bank,
index=PGVectorIndex(memory_bank, ALL_MINILM_L6_V2_DIMENSION, self.cursor),
)
self.cache[bank_id] = index
return bank
async def get_memory_bank(self, bank_id: str) -> Optional[MemoryBank]:
bank_index = await self._get_and_cache_bank_index(bank_id)
if bank_index is None:
return None
return bank_index.bank
async def _get_and_cache_bank_index(self, bank_id: str) -> Optional[BankWithIndex]:
if bank_id in self.cache:
return self.cache[bank_id]
banks = load_models(self.cursor, [bank_id], MemoryBank)
if not banks:
return None
bank = await self.memory_bank_store.get_memory_bank(bank_id)
if not bank:
raise ValueError(f"Bank {bank_id} not found")
bank = banks[0]
index = BankWithIndex(
bank=bank,
index=PGVectorIndex(bank, ALL_MINILM_L6_V2_DIMENSION, self.cursor),

6
llama_stack/providers/adapters/memory/sample/sample.py
View file

@ -9,14 +9,12 @@ from .config import SampleConfig
from llama_stack.apis.memory import * # noqa: F403
from llama_stack.distribution.datatypes import RoutableProvider
class SampleMemoryImpl(Memory, RoutableProvider):
class SampleMemoryImpl(Memory):
def __init__(self, config: SampleConfig):
self.config = config
async def validate_routing_keys(self, routing_keys: list[str]) -> None:
async def register_memory_bank(self, memory_bank: MemoryBankDef) -> None:
# these are the memory banks the Llama Stack will use to route requests to this provider
# perform validation here if necessary
pass

15
llama_stack/providers/adapters/memory/weaviate/__init__.py Normal file
View file

@ -0,0 +1,15 @@
# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under the terms described in the LICENSE file in
# the root directory of this source tree.
from .config import WeaviateConfig, WeaviateRequestProviderData # noqa: F401
async def get_adapter_impl(config: WeaviateConfig, _deps):
from .weaviate import WeaviateMemoryAdapter
impl = WeaviateMemoryAdapter(config)
await impl.initialize()
return impl

16
llama_stack/providers/adapters/memory/weaviate/config.py Normal file
View file

@ -0,0 +1,16 @@
# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under the terms described in the LICENSE file in
# the root directory of this source tree.
from pydantic import BaseModel
class WeaviateRequestProviderData(BaseModel):
weaviate_api_key: str
weaviate_cluster_url: str
class WeaviateConfig(BaseModel):
pass

180
llama_stack/providers/adapters/memory/weaviate/weaviate.py Normal file
View file

@ -0,0 +1,180 @@
# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under the terms described in the LICENSE file in
# the root directory of this source tree.
import json
from typing import Any, Dict, List, Optional
import weaviate
import weaviate.classes as wvc
from numpy.typing import NDArray
from weaviate.classes.init import Auth
from llama_stack.apis.memory import * # noqa: F403
from llama_stack.distribution.request_headers import NeedsRequestProviderData
from llama_stack.providers.utils.memory.vector_store import (
BankWithIndex,
EmbeddingIndex,
)
from .config import WeaviateConfig, WeaviateRequestProviderData
class WeaviateIndex(EmbeddingIndex):
def __init__(self, client: weaviate.Client, collection_name: str):
self.client = client
self.collection_name = collection_name
async def add_chunks(self, chunks: List[Chunk], embeddings: NDArray):
assert len(chunks) == len(
embeddings
), f"Chunk length {len(chunks)} does not match embedding length {len(embeddings)}"
data_objects = []
for i, chunk in enumerate(chunks):
data_objects.append(
wvc.data.DataObject(
properties={
"chunk_content": chunk.json(),
},
vector=embeddings[i].tolist(),
)
)
# Inserting chunks into a prespecified Weaviate collection
collection = self.client.collections.get(self.collection_name)
# TODO: make this async friendly
collection.data.insert_many(data_objects)
async def query(self, embedding: NDArray, k: int) -> QueryDocumentsResponse:
collection = self.client.collections.get(self.collection_name)
results = collection.query.near_vector(
near_vector=embedding.tolist(),
limit=k,
return_metadata=wvc.query.MetadataQuery(distance=True),
)
chunks = []
scores = []
for doc in results.objects:
chunk_json = doc.properties["chunk_content"]
try:
chunk_dict = json.loads(chunk_json)
chunk = Chunk(**chunk_dict)
except Exception:
import traceback
traceback.print_exc()
print(f"Failed to parse document: {chunk_json}")
continue
chunks.append(chunk)
scores.append(1.0 / doc.metadata.distance)
return QueryDocumentsResponse(chunks=chunks, scores=scores)
class WeaviateMemoryAdapter(Memory, NeedsRequestProviderData):
def __init__(self, config: WeaviateConfig) -> None:
self.config = config
self.client_cache = {}
self.cache = {}
def _get_client(self) -> weaviate.Client:
provider_data = self.get_request_provider_data()
assert provider_data is not None, "Request provider data must be set"
assert isinstance(provider_data, WeaviateRequestProviderData)
key = f"{provider_data.weaviate_cluster_url}::{provider_data.weaviate_api_key}"
if key in self.client_cache:
return self.client_cache[key]
client = weaviate.connect_to_weaviate_cloud(
cluster_url=provider_data.weaviate_cluster_url,
auth_credentials=Auth.api_key(provider_data.weaviate_api_key),
)
self.client_cache[key] = client
return client
async def initialize(self) -> None:
pass
async def shutdown(self) -> None:
for client in self.client_cache.values():
client.close()
async def register_memory_bank(
self,
memory_bank: MemoryBankDef,
) -> None:
assert (
memory_bank.type == MemoryBankType.vector.value
), f"Only vector banks are supported {memory_bank.type}"
client = self._get_client()
# Create collection if it doesn't exist
if not client.collections.exists(memory_bank.identifier):
client.collections.create(
name=memory_bank.identifier,
vectorizer_config=wvc.config.Configure.Vectorizer.none(),
properties=[
wvc.config.Property(
name="chunk_content",
data_type=wvc.config.DataType.TEXT,
),
],
)
index = BankWithIndex(
bank=memory_bank,
index=WeaviateIndex(client=client, collection_name=memory_bank.identifier),
)
self.cache[memory_bank.identifier] = index
async def _get_and_cache_bank_index(self, bank_id: str) -> Optional[BankWithIndex]:
if bank_id in self.cache:
return self.cache[bank_id]
bank = await self.memory_bank_store.get_memory_bank(bank_id)
if not bank:
raise ValueError(f"Bank {bank_id} not found")
client = self._get_client()
if not client.collections.exists(bank_id):
raise ValueError(f"Collection with name `{bank_id}` not found")
index = BankWithIndex(
bank=bank,
index=WeaviateIndex(client=client, collection_name=bank_id),
)
self.cache[bank_id] = index
return index
async def insert_documents(
self,
bank_id: str,
documents: List[MemoryBankDocument],
ttl_seconds: Optional[int] = None,
) -> None:
index = await self._get_and_cache_bank_index(bank_id)
if not index:
raise ValueError(f"Bank {bank_id} not found")
await index.insert_documents(documents)
async def query_documents(
self,
bank_id: str,
query: InterleavedTextMedia,
params: Optional[Dict[str, Any]] = None,
) -> QueryDocumentsResponse:
index = await self._get_and_cache_bank_index(bank_id)
if not index:
raise ValueError(f"Bank {bank_id} not found")
return await index.query_documents(query, params)

102
llama_stack/providers/adapters/safety/bedrock/bedrock.py
View file

@ -7,14 +7,12 @@
import json
import logging
import traceback
from typing import Any, Dict, List
import boto3
from llama_stack.apis.safety import * # noqa
from llama_models.llama3.api.datatypes import * # noqa: F403
from llama_stack.distribution.datatypes import RoutableProvider
from .config import BedrockSafetyConfig
@ -22,16 +20,17 @@ from .config import BedrockSafetyConfig
logger = logging.getLogger(__name__)
SUPPORTED_SHIELD_TYPES = [
"bedrock_guardrail",
BEDROCK_SUPPORTED_SHIELDS = [
ShieldType.generic_content_shield.value,
]
class BedrockSafetyAdapter(Safety, RoutableProvider):
class BedrockSafetyAdapter(Safety):
def __init__(self, config: BedrockSafetyConfig) -> None:
if not config.aws_profile:
raise ValueError(f"Missing boto_client aws_profile in model info::{config}")
self.config = config
self.registered_shields = []
async def initialize(self) -> None:
try:
@ -45,16 +44,27 @@ class BedrockSafetyAdapter(Safety, RoutableProvider):
async def shutdown(self) -> None:
pass
async def validate_routing_keys(self, routing_keys: List[str]) -> None:
for key in routing_keys:
if key not in SUPPORTED_SHIELD_TYPES:
raise ValueError(f"Unknown safety shield type: {key}")
async def register_shield(self, shield: ShieldDef) -> None:
if shield.type not in BEDROCK_SUPPORTED_SHIELDS:
raise ValueError(f"Unsupported safety shield type: {shield.type}")
shield_params = shield.params
if "guardrailIdentifier" not in shield_params:
raise ValueError(
"Error running request for BedrockGaurdrails:Missing GuardrailID in request"
)
if "guardrailVersion" not in shield_params:
raise ValueError(
"Error running request for BedrockGaurdrails:Missing guardrailVersion in request"
)
async def run_shield(
self, shield_type: str, messages: List[Message], params: Dict[str, Any] = None
) -> RunShieldResponse:
if shield_type not in SUPPORTED_SHIELD_TYPES:
raise ValueError(f"Unknown safety shield type: {shield_type}")
shield_def = await self.shield_store.get_shield(shield_type)
if not shield_def:
raise ValueError(f"Unknown shield {shield_type}")
"""This is the implementation for the bedrock guardrails. The input to the guardrails is to be of this format
```content = [
@ -69,52 +79,38 @@ class BedrockSafetyAdapter(Safety, RoutableProvider):
They contain content, role . For now we will extract the content and default the "qualifiers": ["query"]
"""
try:
logger.debug(f"run_shield::{params}::messages={messages}")
if "guardrailIdentifier" not in params:
raise RuntimeError(
"Error running request for BedrockGaurdrails:Missing GuardrailID in request"
)
if "guardrailVersion" not in params:
raise RuntimeError(
"Error running request for BedrockGaurdrails:Missing guardrailVersion in request"
)
shield_params = shield_def.params
logger.debug(f"run_shield::{shield_params}::messages={messages}")
# - convert the messages into format Bedrock expects
content_messages = []
for message in messages:
content_messages.append({"text": {"text": message.content}})
logger.debug(
f"run_shield::final:messages::{json.dumps(content_messages, indent=2)}:"
)
# - convert the messages into format Bedrock expects
content_messages = []
for message in messages:
content_messages.append({"text": {"text": message.content}})
logger.debug(
f"run_shield::final:messages::{json.dumps(content_messages, indent=2)}:"
)
response = self.boto_client.apply_guardrail(
guardrailIdentifier=params.get("guardrailIdentifier"),
guardrailVersion=params.get("guardrailVersion"),
source="OUTPUT", # or 'INPUT' depending on your use case
content=content_messages,
)
logger.debug(f"run_shield:: response: {response}::")
if response["action"] == "GUARDRAIL_INTERVENED":
user_message = ""
metadata = {}
for output in response["outputs"]:
# guardrails returns a list - however for this implementation we will leverage the last values
user_message = output["text"]
for assessment in response["assessments"]:
# guardrails returns a list - however for this implementation we will leverage the last values
metadata = dict(assessment)
return SafetyViolation(
user_message=user_message,
violation_level=ViolationLevel.ERROR,
metadata=metadata,
)
response = self.boto_client.apply_guardrail(
guardrailIdentifier=shield_params["guardrailIdentifier"],
guardrailVersion=shield_params["guardrailVersion"],
source="OUTPUT", # or 'INPUT' depending on your use case
content=content_messages,
)
if response["action"] == "GUARDRAIL_INTERVENED":
user_message = ""
metadata = {}
for output in response["outputs"]:
# guardrails returns a list - however for this implementation we will leverage the last values
user_message = output["text"]
for assessment in response["assessments"]:
# guardrails returns a list - however for this implementation we will leverage the last values
metadata = dict(assessment)
except Exception:
error_str = traceback.format_exc()
logger.error(
f"Error in apply_guardrails:{error_str}:: RETURNING None !!!!!"
return SafetyViolation(
user_message=user_message,
violation_level=ViolationLevel.ERROR,
metadata=metadata,
)
return None

6
llama_stack/providers/adapters/safety/sample/sample.py
View file

@ -9,14 +9,12 @@ from .config import SampleConfig
from llama_stack.apis.safety import * # noqa: F403
from llama_stack.distribution.datatypes import RoutableProvider
class SampleSafetyImpl(Safety, RoutableProvider):
class SampleSafetyImpl(Safety):
def __init__(self, config: SampleConfig):
self.config = config
async def validate_routing_keys(self, routing_keys: list[str]) -> None:
async def register_shield(self, shield: ShieldDef) -> None:
# these are the safety shields the Llama Stack will use to route requests to this provider
# perform validation here if necessary
pass

32
llama_stack/providers/adapters/safety/together/together.py
View file

@ -6,26 +6,20 @@
from together import Together
from llama_models.llama3.api.datatypes import * # noqa: F403
from llama_stack.apis.safety import (
RunShieldResponse,
Safety,
SafetyViolation,
ViolationLevel,
)
from llama_stack.distribution.datatypes import RoutableProvider
from llama_stack.apis.safety import * # noqa: F403
from llama_stack.distribution.request_headers import NeedsRequestProviderData
from .config import TogetherSafetyConfig
SAFETY_SHIELD_TYPES = {
TOGETHER_SHIELD_MODEL_MAP = {
"llama_guard": "meta-llama/Meta-Llama-Guard-3-8B",
"Llama-Guard-3-8B": "meta-llama/Meta-Llama-Guard-3-8B",
"Llama-Guard-3-11B-Vision": "meta-llama/Llama-Guard-3-11B-Vision-Turbo",
}
class TogetherSafetyImpl(Safety, NeedsRequestProviderData, RoutableProvider):
class TogetherSafetyImpl(Safety, NeedsRequestProviderData):
def __init__(self, config: TogetherSafetyConfig) -> None:
self.config = config
@ -35,16 +29,20 @@ class TogetherSafetyImpl(Safety, NeedsRequestProviderData, RoutableProvider):
async def shutdown(self) -> None:
pass
async def validate_routing_keys(self, routing_keys: List[str]) -> None:
for key in routing_keys:
if key not in SAFETY_SHIELD_TYPES:
raise ValueError(f"Unknown safety shield type: {key}")
async def register_shield(self, shield: ShieldDef) -> None:
if shield.type != ShieldType.llama_guard.value:
raise ValueError(f"Unsupported safety shield type: {shield.type}")
async def run_shield(
self, shield_type: str, messages: List[Message], params: Dict[str, Any] = None
) -> RunShieldResponse:
if shield_type not in SAFETY_SHIELD_TYPES:
raise ValueError(f"Unknown safety shield type: {shield_type}")
shield_def = await self.shield_store.get_shield(shield_type)
if not shield_def:
raise ValueError(f"Unknown shield {shield_type}")
model = shield_def.params.get("model", "llama_guard")
if model not in TOGETHER_SHIELD_MODEL_MAP:
raise ValueError(f"Unsupported safety model: {model}")
together_api_key = None
if self.config.api_key is not None:
@ -57,8 +55,6 @@ class TogetherSafetyImpl(Safety, NeedsRequestProviderData, RoutableProvider):
)
together_api_key = provider_data.together_api_key
model_name = SAFETY_SHIELD_TYPES[shield_type]
# messages can have role assistant or user
api_messages = []
for message in messages:
@ -66,7 +62,7 @@ class TogetherSafetyImpl(Safety, NeedsRequestProviderData, RoutableProvider):
api_messages.append({"role": message.role, "content": message.content})
violation = await get_safety_response(
together_api_key, model_name, api_messages
together_api_key, TOGETHER_SHIELD_MODEL_MAP[model], api_messages
)
return RunShieldResponse(violation=violation)

19
llama_stack/providers/datatypes.py
View file

@ -43,23 +43,14 @@ class ProviderSpec(BaseModel):
description="Higher-level API surfaces may depend on other providers to provide their functionality",
)
# used internally by the resolver; this is a hack for now
deps__: List[str] = Field(default_factory=list)
class RoutingTable(Protocol):
def get_routing_keys(self) -> List[str]: ...
def get_provider_impl(self, routing_key: str) -> Any: ...
class RoutableProvider(Protocol):
"""
A provider which sits behind the RoutingTable and can get routed to.
All Inference / Safety / Memory providers fall into this bucket.
"""
async def validate_routing_keys(self, keys: List[str]) -> None: ...
@json_schema_type
class AdapterSpec(BaseModel):
adapter_type: str = Field(
@ -156,6 +147,10 @@ as being "Llama Stack compatible"
return None
def is_passthrough(spec: ProviderSpec) -> bool:
return isinstance(spec, RemoteProviderSpec) and spec.adapter is None
# Can avoid this by using Pydantic computed_field
def remote_provider_spec(
api: Api, adapter: Optional[AdapterSpec] = None

22
llama_stack/providers/impls/meta_reference/agents/agent_instance.py
View file

@ -144,6 +144,8 @@ class ChatAgent(ShieldRunnerMixin):
async def create_and_execute_turn(
self, request: AgentTurnCreateRequest
) -> AsyncGenerator:
assert request.stream is True, "Non-streaming not supported"
session_info = await self.storage.get_session_info(request.session_id)
if session_info is None:
raise ValueError(f"Session {request.session_id} not found")
@ -635,14 +637,13 @@ class ChatAgent(ShieldRunnerMixin):
raise ValueError(f"Session {session_id} not found")
if session_info.memory_bank_id is None:
memory_bank = await self.memory_api.create_memory_bank(
name=f"memory_bank_{session_id}",
config=VectorMemoryBankConfig(
embedding_model="all-MiniLM-L6-v2",
chunk_size_in_tokens=512,
),
bank_id = f"memory_bank_{session_id}"
memory_bank = VectorMemoryBankDef(
identifier=bank_id,
embedding_model="all-MiniLM-L6-v2",
chunk_size_in_tokens=512,
)
bank_id = memory_bank.bank_id
await self.memory_api.register_memory_bank(memory_bank)
await self.storage.add_memory_bank_to_session(session_id, bank_id)
else:
bank_id = session_info.memory_bank_id
@ -673,7 +674,7 @@ class ChatAgent(ShieldRunnerMixin):
async def _retrieve_context(
self, session_id: str, messages: List[Message], attachments: List[Attachment]
) -> Tuple[List[str], List[int]]: # (rag_context, bank_ids)
) -> Tuple[Optional[List[str]], Optional[List[int]]]: # (rag_context, bank_ids)
bank_ids = []
memory = self._memory_tool_definition()
@ -722,12 +723,13 @@ class ChatAgent(ShieldRunnerMixin):
chunks = [c for r in results for c in r.chunks]
scores = [s for r in results for s in r.scores]
if not chunks:
return None, bank_ids
# sort by score
chunks, scores = zip(
*sorted(zip(chunks, scores), key=lambda x: x[1], reverse=True)
)
if not chunks:
return None, bank_ids
tokens = 0
picked = []

16
llama_stack/providers/impls/meta_reference/agents/agents.py
View file

@ -100,7 +100,7 @@ class MetaReferenceAgentsImpl(Agents):
session_id=session_id,
)
async def create_agent_turn(
def create_agent_turn(
self,
agent_id: str,
session_id: str,
@ -113,16 +113,22 @@ class MetaReferenceAgentsImpl(Agents):
attachments: Optional[List[Attachment]] = None,
stream: Optional[bool] = False,
) -> AsyncGenerator:
agent = await self.get_agent(agent_id)
# wrapper request to make it easier to pass around (internal only, not exposed to API)
request = AgentTurnCreateRequest(
agent_id=agent_id,
session_id=session_id,
messages=messages,
attachments=attachments,
stream=stream,
stream=True,
)
if stream:
return self._create_agent_turn_streaming(request)
else:
raise NotImplementedError("Non-streaming agent turns not yet implemented")
async def _create_agent_turn_streaming(
self,
request: AgentTurnCreateRequest,
) -> AsyncGenerator:
agent = await self.get_agent(request.agent_id)
async for event in agent.create_and_execute_turn(request):
yield event

15
llama_stack/providers/impls/meta_reference/codeshield/__init__.py Normal file
View file

@ -0,0 +1,15 @@
# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under the terms described in the LICENSE file in
# the root directory of this source tree.
from .config import CodeShieldConfig
async def get_provider_impl(config: CodeShieldConfig, deps):
from .code_scanner import MetaReferenceCodeScannerSafetyImpl
impl = MetaReferenceCodeScannerSafetyImpl(config, deps)
await impl.initialize()
return impl

58
llama_stack/providers/impls/meta_reference/codeshield/code_scanner.py Normal file
View file

@ -0,0 +1,58 @@
# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under the terms described in the LICENSE file in
# the root directory of this source tree.
from typing import Any, Dict, List
from llama_models.llama3.api.datatypes import interleaved_text_media_as_str, Message
from termcolor import cprint
from .config import CodeScannerConfig
from llama_stack.apis.safety import * # noqa: F403
class MetaReferenceCodeScannerSafetyImpl(Safety):
def __init__(self, config: CodeScannerConfig, deps) -> None:
self.config = config
async def initialize(self) -> None:
pass
async def shutdown(self) -> None:
pass
async def register_shield(self, shield: ShieldDef) -> None:
if shield.type != ShieldType.code_scanner.value:
raise ValueError(f"Unsupported safety shield type: {shield.type}")
async def run_shield(
self,
shield_type: str,
messages: List[Message],
params: Dict[str, Any] = None,
) -> RunShieldResponse:
shield_def = await self.shield_store.get_shield(shield_type)
if not shield_def:
raise ValueError(f"Unknown shield {shield_type}")
from codeshield.cs import CodeShield
text = "\n".join([interleaved_text_media_as_str(m.content) for m in messages])
cprint(f"Running CodeScannerShield on {text[50:]}", color="magenta")
result = await CodeShield.scan_code(text)
violation = None
if result.is_insecure:
violation = SafetyViolation(
violation_level=(ViolationLevel.ERROR),
user_message="Sorry, I found security concerns in the code.",
metadata={
"violation_type": ",".join(
[issue.pattern_id for issue in result.issues_found]
)
},
)
return RunShieldResponse(violation=violation)

11
llama_stack/providers/impls/meta_reference/codeshield/config.py Normal file
View file

@ -0,0 +1,11 @@
# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under the terms described in the LICENSE file in
# the root directory of this source tree.
from pydantic import BaseModel
class CodeShieldConfig(BaseModel):
pass

5
llama_stack/providers/impls/meta_reference/evals/evals.py
View file

@ -43,13 +43,12 @@ class MetaReferenceEvalsImpl(Evals):
print("generation start")
for msg in x1[:5]:
print("generation for msg: ", msg)
response = self.inference_api.chat_completion(
response = await self.inference_api.chat_completion(
model=model,
messages=[msg],
stream=False,
)
async for x in response:
generation_outputs.append(x.completion_message.content)
generation_outputs.append(response.completion_message.content)
x2 = task_impl.postprocess(generation_outputs)
eval_results = task_impl.score(x2)

2
llama_stack/providers/impls/meta_reference/inference/generation.py
View file

@ -297,7 +297,7 @@ class Llama:
token=next_token[0].item(),
text=self.tokenizer.decode(next_token.tolist()),
logprobs=(
token_logprobs[:, prev_pos + 1 : cur_pos + 1][0].tolist()
token_logprobs[:, cur_pos : cur_pos + 1][0].tolist()
if logprobs
else None
),

183
llama_stack/providers/impls/meta_reference/inference/inference.py
View file

@ -6,15 +6,14 @@
import asyncio
from typing import AsyncIterator, List, Union
from typing import AsyncGenerator, List
from llama_models.sku_list import resolve_model
from llama_models.llama3.api.datatypes import * # noqa: F403
from llama_stack.apis.inference import * # noqa: F403
from llama_stack.distribution.datatypes import RoutableProvider
from llama_stack.providers.utils.inference.augment_messages import (
augment_messages_for_tools,
from llama_stack.providers.utils.inference.prompt_adapter import (
chat_completion_request_to_messages,
)
from .config import MetaReferenceImplConfig
@ -25,7 +24,7 @@ from .model_parallel import LlamaModelParallelGenerator
SEMAPHORE = asyncio.Semaphore(1)
class MetaReferenceInferenceImpl(Inference, RoutableProvider):
class MetaReferenceInferenceImpl(Inference):
def __init__(self, config: MetaReferenceImplConfig) -> None:
self.config = config
model = resolve_model(config.model)
@ -35,21 +34,20 @@ class MetaReferenceInferenceImpl(Inference, RoutableProvider):
# verify that the checkpoint actually is for this model lol
async def initialize(self) -> None:
print(f"Loading model `{self.model.descriptor()}`")
self.generator = LlamaModelParallelGenerator(self.config)
self.generator.start()
async def validate_routing_keys(self, routing_keys: List[str]) -> None:
assert (
len(routing_keys) == 1
), f"Only one routing key is supported {routing_keys}"
assert routing_keys[0] == self.config.model
async def register_model(self, model: ModelDef) -> None:
if model.identifier != self.model.descriptor():
raise RuntimeError(
f"Model mismatch: {model.identifier} != {self.model.descriptor()}"
)
async def shutdown(self) -> None:
self.generator.stop()
# hm, when stream=False, we should not be doing SSE :/ which is what the
# top-level server is going to do. make the typing more specific here
async def chat_completion(
def chat_completion(
self,
model: str,
messages: List[Message],
@ -59,9 +57,10 @@ class MetaReferenceInferenceImpl(Inference, RoutableProvider):
tool_prompt_format: Optional[ToolPromptFormat] = ToolPromptFormat.json,
stream: Optional[bool] = False,
logprobs: Optional[LogProbConfig] = None,
) -> AsyncIterator[
Union[ChatCompletionResponseStreamChunk, ChatCompletionResponse]
]:
) -> AsyncGenerator:
if logprobs:
assert logprobs.top_k == 1, f"Unexpected top_k={logprobs.top_k}"
# wrapper request to make it easier to pass around (internal only, not exposed to API)
request = ChatCompletionRequest(
model=model,
@ -74,7 +73,6 @@ class MetaReferenceInferenceImpl(Inference, RoutableProvider):
logprobs=logprobs,
)
messages = augment_messages_for_tools(request)
model = resolve_model(request.model)
if model is None:
raise RuntimeError(
@ -88,21 +86,74 @@ class MetaReferenceInferenceImpl(Inference, RoutableProvider):
if SEMAPHORE.locked():
raise RuntimeError("Only one concurrent request is supported")
if request.stream:
return self._stream_chat_completion(request)
else:
return self._nonstream_chat_completion(request)
async def _nonstream_chat_completion(
self, request: ChatCompletionRequest
) -> ChatCompletionResponse:
async with SEMAPHORE:
if request.stream:
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.start,
delta="",
)
)
messages = chat_completion_request_to_messages(request)
tokens = []
logprobs = []
stop_reason = None
buffer = ""
for token_result in self.generator.chat_completion(
messages=messages,
temperature=request.sampling_params.temperature,
top_p=request.sampling_params.top_p,
max_gen_len=request.sampling_params.max_tokens,
logprobs=request.logprobs,
tool_prompt_format=request.tool_prompt_format,
):
tokens.append(token_result.token)
if token_result.text == "<|eot_id|>":
stop_reason = StopReason.end_of_turn
elif token_result.text == "<|eom_id|>":
stop_reason = StopReason.end_of_message
if request.logprobs:
assert len(token_result.logprobs) == 1
logprobs.append(
TokenLogProbs(
logprobs_by_token={
token_result.text: token_result.logprobs[0]
}
)
)
if stop_reason is None:
stop_reason = StopReason.out_of_tokens
message = self.generator.formatter.decode_assistant_message(
tokens, stop_reason
)
return ChatCompletionResponse(
completion_message=message,
logprobs=logprobs if request.logprobs else None,
)
async def _stream_chat_completion(
self, request: ChatCompletionRequest
) -> AsyncGenerator:
async with SEMAPHORE:
messages = chat_completion_request_to_messages(request)
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.start,
delta="",
)
)
tokens = []
logprobs = []
stop_reason = None
ipython = False
for token_result in self.generator.chat_completion(
@ -113,10 +164,9 @@ class MetaReferenceInferenceImpl(Inference, RoutableProvider):
logprobs=request.logprobs,
tool_prompt_format=request.tool_prompt_format,
):
buffer += token_result.text
tokens.append(token_result.token)
if not ipython and buffer.startswith("<|python_tag|>"):
if not ipython and token_result.text.startswith("<|python_tag|>"):
ipython = True
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
@ -127,13 +177,6 @@ class MetaReferenceInferenceImpl(Inference, RoutableProvider):
),
)
)
buffer = buffer[len("<|python_tag|>") :]
continue
if not request.stream:
if request.logprobs:
logprobs.append(token_result.logprob)
continue
if token_result.text == "<|eot_id|>":
@ -154,59 +197,61 @@ class MetaReferenceInferenceImpl(Inference, RoutableProvider):
delta = text
if stop_reason is None:
if request.logprobs:
assert len(token_result.logprobs) == 1
logprobs.append(
TokenLogProbs(
logprobs_by_token={
token_result.text: token_result.logprobs[0]
}
)
)
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.progress,
delta=delta,
stop_reason=stop_reason,
logprobs=logprobs if request.logprobs else None,
)
)
if stop_reason is None:
stop_reason = StopReason.out_of_tokens
# TODO(ashwin): parse tool calls separately here and report errors?
# if someone breaks the iteration before coming here we are toast
message = self.generator.formatter.decode_assistant_message(
tokens, stop_reason
)
if request.stream:
parsed_tool_calls = len(message.tool_calls) > 0
if ipython and not parsed_tool_calls:
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.progress,
delta=ToolCallDelta(
content="",
parse_status=ToolCallParseStatus.failure,
),
stop_reason=stop_reason,
)
)
for tool_call in message.tool_calls:
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.progress,
delta=ToolCallDelta(
content=tool_call,
parse_status=ToolCallParseStatus.success,
),
stop_reason=stop_reason,
)
)
parsed_tool_calls = len(message.tool_calls) > 0
if ipython and not parsed_tool_calls:
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.complete,
delta="",
event_type=ChatCompletionResponseEventType.progress,
delta=ToolCallDelta(
content="",
parse_status=ToolCallParseStatus.failure,
),
stop_reason=stop_reason,
)
)
# TODO(ashwin): what else do we need to send out here when everything finishes?
else:
yield ChatCompletionResponse(
completion_message=message,
logprobs=logprobs if request.logprobs else None,
for tool_call in message.tool_calls:
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.progress,
delta=ToolCallDelta(
content=tool_call,
parse_status=ToolCallParseStatus.success,
),
stop_reason=stop_reason,
)
)
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.complete,
delta="",
stop_reason=stop_reason,
)
)

6
llama_stack/providers/impls/meta_reference/inference/quantization/loader.py
View file

@ -13,15 +13,15 @@ from typing import Optional
import torch
from fairscale.nn.model_parallel.mappings import reduce_from_model_parallel_region
from llama_models.llama3.api.model import Transformer, TransformerBlock
from llama_models.datatypes import CheckpointQuantizationFormat
from llama_models.llama3.reference_impl.model import Transformer, TransformerBlock
from termcolor import cprint
from torch import Tensor
from llama_stack.apis.inference import QuantizationType
from llama_stack.apis.inference.config import (
CheckpointQuantizationFormat,
from llama_stack.providers.impls.meta_reference.inference.config import (
MetaReferenceImplConfig,
)

39
llama_stack/providers/impls/meta_reference/memory/faiss.py
View file

@ -5,7 +5,6 @@
# the root directory of this source tree.
import logging
import uuid
from typing import Any, Dict, List, Optional
@ -14,7 +13,6 @@ import numpy as np
from numpy.typing import NDArray
from llama_models.llama3.api.datatypes import * # noqa: F403
from llama_stack.distribution.datatypes import RoutableProvider
from llama_stack.apis.memory import * # noqa: F403
from llama_stack.providers.utils.memory.vector_store import (
@ -63,7 +61,7 @@ class FaissIndex(EmbeddingIndex):
return QueryDocumentsResponse(chunks=chunks, scores=scores)
class FaissMemoryImpl(Memory, RoutableProvider):
class FaissMemoryImpl(Memory):
def __init__(self, config: FaissImplConfig) -> None:
self.config = config
self.cache = {}
@ -72,37 +70,18 @@ class FaissMemoryImpl(Memory, RoutableProvider):
async def shutdown(self) -> None: ...
async def validate_routing_keys(self, routing_keys: List[str]) -> None:
print(f"[faiss] Registering memory bank routing keys: {routing_keys}")
pass
async def create_memory_bank(
async def register_memory_bank(
self,
name: str,
config: MemoryBankConfig,
url: Optional[URL] = None,
) -> MemoryBank:
assert url is None, "URL is not supported for this implementation"
memory_bank: MemoryBankDef,
) -> None:
assert (
config.type == MemoryBankType.vector.value
), f"Only vector banks are supported {config.type}"
memory_bank.type == MemoryBankType.vector.value
), f"Only vector banks are supported {memory_bank.type}"
bank_id = str(uuid.uuid4())
bank = MemoryBank(
bank_id=bank_id,
name=name,
config=config,
url=url,
index = BankWithIndex(
bank=memory_bank, index=FaissIndex(ALL_MINILM_L6_V2_DIMENSION)
)
index = BankWithIndex(bank=bank, index=FaissIndex(ALL_MINILM_L6_V2_DIMENSION))
self.cache[bank_id] = index
return bank
async def get_memory_bank(self, bank_id: str) -> Optional[MemoryBank]:
index = self.cache.get(bank_id)
if index is None:
return None
return index.bank
self.cache[memory_bank.identifier] = index
async def insert_documents(
self,

7
llama_stack/providers/impls/meta_reference/safety/shields/base.py → llama_stack/providers/impls/meta_reference/safety/base.py
View file

@ -44,7 +44,6 @@ def message_content_as_str(message: Message) -> str:
return interleaved_text_media_as_str(message.content)
# For shields that operate on simple strings
class TextShield(ShieldBase):
def convert_messages_to_text(self, messages: List[Message]) -> str:
return "\n".join([message_content_as_str(m) for m in messages])
@ -56,9 +55,3 @@ class TextShield(ShieldBase):
@abstractmethod
async def run_impl(self, text: str) -> ShieldResponse:
raise NotImplementedError()
class DummyShield(TextShield):
async def run_impl(self, text: str) -> ShieldResponse:
# Dummy return LOW to test e2e
return ShieldResponse(is_violation=False)

20
llama_stack/providers/impls/meta_reference/safety/config.py
View file

@ -9,23 +9,19 @@ from typing import List, Optional
from llama_models.sku_list import CoreModelId, safety_models
from pydantic import BaseModel, validator
from pydantic import BaseModel, field_validator
class MetaReferenceShieldType(Enum):
llama_guard = "llama_guard"
code_scanner_guard = "code_scanner_guard"
injection_shield = "injection_shield"
jailbreak_shield = "jailbreak_shield"
class PromptGuardType(Enum):
injection = "injection"
jailbreak = "jailbreak"
class LlamaGuardShieldConfig(BaseModel):
model: str = "Llama-Guard-3-1B"
excluded_categories: List[str] = []
disable_input_check: bool = False
disable_output_check: bool = False
@validator("model")
@field_validator("model")
@classmethod
def validate_model(cls, model: str) -> str:
permitted_models = [
@ -47,10 +43,6 @@ class LlamaGuardShieldConfig(BaseModel):
return model
class PromptGuardShieldConfig(BaseModel):
model: str = "Prompt-Guard-86M"
class SafetyConfig(BaseModel):
llama_guard_shield: Optional[LlamaGuardShieldConfig] = None
prompt_guard_shield: Optional[PromptGuardShieldConfig] = None
enable_prompt_guard: Optional[bool] = False

10
llama_stack/providers/impls/meta_reference/safety/shields/llama_guard.py → llama_stack/providers/impls/meta_reference/safety/llama_guard.py
View file

@ -113,8 +113,6 @@ class LlamaGuardShield(ShieldBase):
model: str,
inference_api: Inference,
excluded_categories: List[str] = None,
disable_input_check: bool = False,
disable_output_check: bool = False,
on_violation_action: OnViolationAction = OnViolationAction.RAISE,
):
super().__init__(on_violation_action)
@ -132,8 +130,6 @@ class LlamaGuardShield(ShieldBase):
self.model = model
self.inference_api = inference_api
self.excluded_categories = excluded_categories
self.disable_input_check = disable_input_check
self.disable_output_check = disable_output_check
def check_unsafe_response(self, response: str) -> Optional[str]:
match = re.match(r"^unsafe\n(.*)$", response)
@ -180,12 +176,6 @@ class LlamaGuardShield(ShieldBase):
async def run(self, messages: List[Message]) -> ShieldResponse:
messages = self.validate_messages(messages)
if self.disable_input_check and messages[-1].role == Role.user.value:
return ShieldResponse(is_violation=False)
elif self.disable_output_check and messages[-1].role == Role.assistant.value:
return ShieldResponse(
is_violation=False,
)
if self.model == CoreModelId.llama_guard_3_11b_vision.value:
shield_input_message = self.build_vision_shield_input(messages)

0
llama_stack/providers/impls/meta_reference/safety/shields/prompt_guard.py → llama_stack/providers/impls/meta_reference/safety/prompt_guard.py
View file

94
llama_stack/providers/impls/meta_reference/safety/safety.py
View file

@ -6,56 +6,43 @@
from typing import Any, Dict, List
from llama_models.sku_list import resolve_model
from llama_stack.distribution.utils.model_utils import model_local_dir
from llama_stack.apis.inference import * # noqa: F403
from llama_stack.apis.safety import * # noqa: F403
from llama_models.llama3.api.datatypes import * # noqa: F403
from llama_stack.distribution.datatypes import Api, RoutableProvider
from llama_stack.distribution.datatypes import Api
from llama_stack.providers.impls.meta_reference.safety.shields.base import (
OnViolationAction,
)
from .config import MetaReferenceShieldType, SafetyConfig
from .shields import (
CodeScannerShield,
InjectionShield,
JailbreakShield,
LlamaGuardShield,
PromptGuardShield,
ShieldBase,
)
from .base import OnViolationAction, ShieldBase
from .config import SafetyConfig
from .llama_guard import LlamaGuardShield
from .prompt_guard import InjectionShield, JailbreakShield, PromptGuardShield
def resolve_and_get_path(model_name: str) -> str:
model = resolve_model(model_name)
assert model is not None, f"Could not resolve model {model_name}"
model_dir = model_local_dir(model.descriptor())
return model_dir
PROMPT_GUARD_MODEL = "Prompt-Guard-86M"
class MetaReferenceSafetyImpl(Safety, RoutableProvider):
class MetaReferenceSafetyImpl(Safety):
def __init__(self, config: SafetyConfig, deps) -> None:
self.config = config
self.inference_api = deps[Api.inference]
self.available_shields = []
if config.llama_guard_shield:
self.available_shields.append(ShieldType.llama_guard.value)
if config.enable_prompt_guard:
self.available_shields.append(ShieldType.prompt_guard.value)
async def initialize(self) -> None:
shield_cfg = self.config.prompt_guard_shield
if shield_cfg is not None:
model_dir = resolve_and_get_path(shield_cfg.model)
if self.config.enable_prompt_guard:
model_dir = model_local_dir(PROMPT_GUARD_MODEL)
_ = PromptGuardShield.instance(model_dir)
async def shutdown(self) -> None:
pass
async def validate_routing_keys(self, routing_keys: List[str]) -> None:
available_shields = [v.value for v in MetaReferenceShieldType]
for key in routing_keys:
if key not in available_shields:
raise ValueError(f"Unknown safety shield type: {key}")
async def register_shield(self, shield: ShieldDef) -> None:
if shield.type not in self.available_shields:
raise ValueError(f"Unsupported safety shield type: {shield.type}")
async def run_shield(
self,
@ -63,10 +50,11 @@ class MetaReferenceSafetyImpl(Safety, RoutableProvider):
messages: List[Message],
params: Dict[str, Any] = None,
) -> RunShieldResponse:
available_shields = [v.value for v in MetaReferenceShieldType]
assert shield_type in available_shields, f"Unknown shield {shield_type}"
shield_def = await self.shield_store.get_shield(shield_type)
if not shield_def:
raise ValueError(f"Unknown shield {shield_type}")
shield = self.get_shield_impl(MetaReferenceShieldType(shield_type))
shield = self.get_shield_impl(shield_def)
messages = messages.copy()
# some shields like llama-guard require the first message to be a user message
@ -92,34 +80,22 @@ class MetaReferenceSafetyImpl(Safety, RoutableProvider):
return RunShieldResponse(violation=violation)
def get_shield_impl(self, typ: MetaReferenceShieldType) -> ShieldBase:
cfg = self.config
if typ == MetaReferenceShieldType.llama_guard:
cfg = cfg.llama_guard_shield
assert (
cfg is not None
), "Cannot use LlamaGuardShield since not present in config"
def get_shield_impl(self, shield: ShieldDef) -> ShieldBase:
if shield.type == ShieldType.llama_guard.value:
cfg = self.config.llama_guard_shield
return LlamaGuardShield(
model=cfg.model,
inference_api=self.inference_api,
excluded_categories=cfg.excluded_categories,
disable_input_check=cfg.disable_input_check,
disable_output_check=cfg.disable_output_check,
)
elif typ == MetaReferenceShieldType.jailbreak_shield:
assert (
cfg.prompt_guard_shield is not None
), "Cannot use Jailbreak Shield since Prompt Guard not present in config"
model_dir = resolve_and_get_path(cfg.prompt_guard_shield.model)
return JailbreakShield.instance(model_dir)
elif typ == MetaReferenceShieldType.injection_shield:
assert (
cfg.prompt_guard_shield is not None
), "Cannot use PromptGuardShield since not present in config"
model_dir = resolve_and_get_path(cfg.prompt_guard_shield.model)
return InjectionShield.instance(model_dir)
elif typ == MetaReferenceShieldType.code_scanner_guard:
return CodeScannerShield.instance()
elif shield.type == ShieldType.prompt_guard.value:
model_dir = model_local_dir(PROMPT_GUARD_MODEL)
subtype = shield.params.get("prompt_guard_type", "injection")
if subtype == "injection":
return InjectionShield.instance(model_dir)
elif subtype == "jailbreak":
return JailbreakShield.instance(model_dir)
else:
raise ValueError(f"Unknown prompt guard type: {subtype}")
else:
raise ValueError(f"Unknown shield type: {typ}")
raise ValueError(f"Unknown shield type: {shield.type}")

33
llama_stack/providers/impls/meta_reference/safety/shields/__init__.py
View file

@ -1,33 +0,0 @@
# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under the terms described in the LICENSE file in
# the root directory of this source tree.
# supress warnings and spew of logs from hugging face
import transformers
from .base import ( # noqa: F401
DummyShield,
OnViolationAction,
ShieldBase,
ShieldResponse,
TextShield,
)
from .code_scanner import CodeScannerShield # noqa: F401
from .llama_guard import LlamaGuardShield # noqa: F401
from .prompt_guard import ( # noqa: F401
InjectionShield,
JailbreakShield,
PromptGuardShield,
)
transformers.logging.set_verbosity_error()
import os
os.environ["TOKENIZERS_PARALLELISM"] = "false"
import warnings
warnings.filterwarnings("ignore")

27
llama_stack/providers/impls/meta_reference/safety/shields/code_scanner.py
View file

@ -1,27 +0,0 @@
# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under the terms described in the LICENSE file in
# the root directory of this source tree.
from termcolor import cprint
from .base import ShieldResponse, TextShield
class CodeScannerShield(TextShield):
async def run_impl(self, text: str) -> ShieldResponse:
from codeshield.cs import CodeShield
cprint(f"Running CodeScannerShield on {text[50:]}", color="magenta")
result = await CodeShield.scan_code(text)
if result.is_insecure:
return ShieldResponse(
is_violation=True,
violation_type=",".join(
[issue.pattern_id for issue in result.issues_found]
),
violation_return_message="Sorry, I found security concerns in the code.",
)
else:
return ShieldResponse(is_violation=False)

11
llama_stack/providers/impls/vllm/__init__.py Normal file
View file

@ -0,0 +1,11 @@
from typing import Any
from .config import VLLMConfig
async def get_provider_impl(config: VLLMConfig, _deps) -> Any:
from .vllm import VLLMInferenceImpl
impl = VLLMInferenceImpl(config)
await impl.initialize()
return impl

35
llama_stack/providers/impls/vllm/config.py Normal file
View file

@ -0,0 +1,35 @@
# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under the terms described in the LICENSE file in
# the root directory of this source tree.
from llama_models.schema_utils import json_schema_type
from pydantic import BaseModel, Field, field_validator
from llama_stack.providers.utils.inference import supported_inference_models
@json_schema_type
class VLLMConfig(BaseModel):
"""Configuration for the vLLM inference provider."""
model: str = Field(
default="Llama3.1-8B-Instruct",
description="Model descriptor from `llama model list`",
)
tensor_parallel_size: int = Field(
default=1,
description="Number of tensor parallel replicas (number of GPUs to use).",
)
@field_validator("model")
@classmethod
def validate_model(cls, model: str) -> str:
permitted_models = supported_inference_models()
if model not in permitted_models:
model_list = "\n\t".join(permitted_models)
raise ValueError(
f"Unknown model: `{model}`. Choose from [\n\t{model_list}\n]"
)
return model

241
llama_stack/providers/impls/vllm/vllm.py Normal file
View file

@ -0,0 +1,241 @@
# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under the terms described in the LICENSE file in
# the root directory of this source tree.
import logging
import os
import uuid
from typing import Any
from llama_models.llama3.api.chat_format import ChatFormat
from llama_models.llama3.api.datatypes import * # noqa: F403
from llama_models.llama3.api.tokenizer import Tokenizer
from vllm.engine.arg_utils import AsyncEngineArgs
from vllm.engine.async_llm_engine import AsyncLLMEngine
from vllm.sampling_params import SamplingParams
from llama_stack.apis.inference import * # noqa: F403
from llama_stack.providers.utils.inference.model_registry import ModelRegistryHelper
from llama_stack.providers.utils.inference.openai_compat import (
OpenAICompatCompletionChoice,
OpenAICompatCompletionResponse,
process_chat_completion_response,
process_chat_completion_stream_response,
)
from llama_stack.providers.utils.inference.prompt_adapter import (
chat_completion_request_to_prompt,
)
from .config import VLLMConfig
log = logging.getLogger(__name__)
def _random_uuid() -> str:
return str(uuid.uuid4().hex)
def _vllm_sampling_params(sampling_params: Any) -> SamplingParams:
"""Convert sampling params to vLLM sampling params."""
if sampling_params is None:
return SamplingParams()
# TODO convert what I saw in my first test ... but surely there's more to do here
kwargs = {
"temperature": sampling_params.temperature,
}
if sampling_params.top_k >= 1:
kwargs["top_k"] = sampling_params.top_k
if sampling_params.top_p:
kwargs["top_p"] = sampling_params.top_p
if sampling_params.max_tokens >= 1:
kwargs["max_tokens"] = sampling_params.max_tokens
if sampling_params.repetition_penalty > 0:
kwargs["repetition_penalty"] = sampling_params.repetition_penalty
return SamplingParams(**kwargs)
class VLLMInferenceImpl(ModelRegistryHelper, Inference):
"""Inference implementation for vLLM."""
HF_MODEL_MAPPINGS = {
# TODO: seems like we should be able to build this table dynamically ...
"Llama3.1-8B": "meta-llama/Llama-3.1-8B",
"Llama3.1-70B": "meta-llama/Llama-3.1-70B",
"Llama3.1-405B:bf16-mp8": "meta-llama/Llama-3.1-405B",
"Llama3.1-405B": "meta-llama/Llama-3.1-405B-FP8",
"Llama3.1-405B:bf16-mp16": "meta-llama/Llama-3.1-405B",
"Llama3.1-8B-Instruct": "meta-llama/Llama-3.1-8B-Instruct",
"Llama3.1-70B-Instruct": "meta-llama/Llama-3.1-70B-Instruct",
"Llama3.1-405B-Instruct:bf16-mp8": "meta-llama/Llama-3.1-405B-Instruct",
"Llama3.1-405B-Instruct": "meta-llama/Llama-3.1-405B-Instruct-FP8",
"Llama3.1-405B-Instruct:bf16-mp16": "meta-llama/Llama-3.1-405B-Instruct",
"Llama3.2-1B": "meta-llama/Llama-3.2-1B",
"Llama3.2-3B": "meta-llama/Llama-3.2-3B",
"Llama3.2-11B-Vision": "meta-llama/Llama-3.2-11B-Vision",
"Llama3.2-90B-Vision": "meta-llama/Llama-3.2-90B-Vision",
"Llama3.2-1B-Instruct": "meta-llama/Llama-3.2-1B-Instruct",
"Llama3.2-3B-Instruct": "meta-llama/Llama-3.2-3B-Instruct",
"Llama3.2-11B-Vision-Instruct": "meta-llama/Llama-3.2-11B-Vision-Instruct",
"Llama3.2-90B-Vision-Instruct": "meta-llama/Llama-3.2-90B-Vision-Instruct",
"Llama-Guard-3-11B-Vision": "meta-llama/Llama-Guard-3-11B-Vision",
"Llama-Guard-3-1B:int4-mp1": "meta-llama/Llama-Guard-3-1B-INT4",
"Llama-Guard-3-1B": "meta-llama/Llama-Guard-3-1B",
"Llama-Guard-3-8B": "meta-llama/Llama-Guard-3-8B",
"Llama-Guard-3-8B:int8-mp1": "meta-llama/Llama-Guard-3-8B-INT8",
"Prompt-Guard-86M": "meta-llama/Prompt-Guard-86M",
"Llama-Guard-2-8B": "meta-llama/Llama-Guard-2-8B",
}
def __init__(self, config: VLLMConfig):
Inference.__init__(self)
ModelRegistryHelper.__init__(
self,
stack_to_provider_models_map=self.HF_MODEL_MAPPINGS,
)
self.config = config
self.engine = None
tokenizer = Tokenizer.get_instance()
self.formatter = ChatFormat(tokenizer)
async def initialize(self):
"""Initialize the vLLM inference adapter."""
log.info("Initializing vLLM inference adapter")
# Disable usage stats reporting. This would be a surprising thing for most
# people to find out was on by default.
# https://docs.vllm.ai/en/latest/serving/usage_stats.html
if "VLLM_NO_USAGE_STATS" not in os.environ:
os.environ["VLLM_NO_USAGE_STATS"] = "1"
hf_model = self.HF_MODEL_MAPPINGS.get(self.config.model)
# TODO -- there are a ton of options supported here ...
engine_args = AsyncEngineArgs()
engine_args.model = hf_model
# We will need a new config item for this in the future if model support is more broad
# than it is today (llama only)
engine_args.tokenizer = hf_model
engine_args.tensor_parallel_size = self.config.tensor_parallel_size
self.engine = AsyncLLMEngine.from_engine_args(engine_args)
async def shutdown(self):
"""Shutdown the vLLM inference adapter."""
log.info("Shutting down vLLM inference adapter")
if self.engine:
self.engine.shutdown_background_loop()
def completion(
self,
model: str,
content: InterleavedTextMedia,
sampling_params: Any | None = ...,
stream: bool | None = False,
logprobs: LogProbConfig | None = None,
) -> CompletionResponse | CompletionResponseStreamChunk:
log.info("vLLM completion")
messages = [UserMessage(content=content)]
return self.chat_completion(
model=model,
messages=messages,
sampling_params=sampling_params,
stream=stream,
logprobs=logprobs,
)
def chat_completion(
self,
model: str,
messages: list[Message],
sampling_params: Any | None = ...,
tools: list[ToolDefinition] | None = ...,
tool_choice: ToolChoice | None = ...,
tool_prompt_format: ToolPromptFormat | None = ...,
stream: bool | None = False,
logprobs: LogProbConfig | None = None,
) -> ChatCompletionResponse | ChatCompletionResponseStreamChunk:
log.info("vLLM chat completion")
assert self.engine is not None
request = ChatCompletionRequest(
model=model,
messages=messages,
sampling_params=sampling_params,
tools=tools or [],
tool_choice=tool_choice,
tool_prompt_format=tool_prompt_format,
stream=stream,
logprobs=logprobs,
)
log.info("Sampling params: %s", sampling_params)
request_id = _random_uuid()
prompt = chat_completion_request_to_prompt(request, self.formatter)
vllm_sampling_params = _vllm_sampling_params(request.sampling_params)
results_generator = self.engine.generate(
prompt, vllm_sampling_params, request_id
)
if stream:
return self._stream_chat_completion(request, results_generator)
else:
return self._nonstream_chat_completion(request, results_generator)
async def _nonstream_chat_completion(
self, request: ChatCompletionRequest, results_generator: AsyncGenerator
) -> ChatCompletionResponse:
outputs = [o async for o in results_generator]
final_output = outputs[-1]
assert final_output is not None
outputs = final_output.outputs
finish_reason = outputs[-1].stop_reason
choice = OpenAICompatCompletionChoice(
finish_reason=finish_reason,
text="".join([output.text for output in outputs]),
)
response = OpenAICompatCompletionResponse(
choices=[choice],
)
return process_chat_completion_response(request, response, self.formatter)
async def _stream_chat_completion(
self, request: ChatCompletionRequest, results_generator: AsyncGenerator
) -> AsyncGenerator:
async def _generate_and_convert_to_openai_compat():
async for chunk in results_generator:
if not chunk.outputs:
log.warning("Empty chunk received")
continue
text = "".join([output.text for output in chunk.outputs])
choice = OpenAICompatCompletionChoice(
finish_reason=chunk.outputs[-1].stop_reason,
text=text,
)
yield OpenAICompatCompletionResponse(
choices=[choice],
)
stream = _generate_and_convert_to_openai_compat()
async for chunk in process_chat_completion_stream_response(
request, stream, self.formatter
):
yield chunk
async def embeddings(
self, model: str, contents: list[InterleavedTextMedia]
) -> EmbeddingsResponse:
log.info("vLLM embeddings")
# TODO
raise NotImplementedError()

21
llama_stack/providers/registry/inference.py
View file

@ -41,6 +41,7 @@ def available_providers() -> List[ProviderSpec]:
adapter=AdapterSpec(
adapter_type="ollama",
pip_packages=["ollama"],
config_class="llama_stack.providers.adapters.inference.ollama.OllamaImplConfig",
module="llama_stack.providers.adapters.inference.ollama",
),
),
@ -103,4 +104,24 @@ def available_providers() -> List[ProviderSpec]:
config_class="llama_stack.providers.adapters.inference.bedrock.BedrockConfig",
),
),
remote_provider_spec(
api=Api.inference,
adapter=AdapterSpec(
adapter_type="databricks",
pip_packages=[
"openai",
],
module="llama_stack.providers.adapters.inference.databricks",
config_class="llama_stack.providers.adapters.inference.databricks.DatabricksImplConfig",
),
),
InlineProviderSpec(
api=Api.inference,
provider_type="vllm",
pip_packages=[
"vllm",
],
module="llama_stack.providers.impls.vllm",
config_class="llama_stack.providers.impls.vllm.VLLMConfig",
),
]

10
llama_stack/providers/registry/memory.py
View file

@ -56,6 +56,16 @@ def available_providers() -> List[ProviderSpec]:
config_class="llama_stack.providers.adapters.memory.pgvector.PGVectorConfig",
),
),
remote_provider_spec(
Api.memory,
AdapterSpec(
adapter_type="weaviate",
pip_packages=EMBEDDING_DEPS + ["weaviate-client"],
module="llama_stack.providers.adapters.memory.weaviate",
config_class="llama_stack.providers.adapters.memory.weaviate.WeaviateConfig",
provider_data_validator="llama_stack.providers.adapters.memory.weaviate.WeaviateRequestProviderData",
),
),
remote_provider_spec(
api=Api.memory,
adapter=AdapterSpec(

11
llama_stack/providers/registry/safety.py
View file

@ -21,7 +21,6 @@ def available_providers() -> List[ProviderSpec]:
api=Api.safety,
provider_type="meta-reference",
pip_packages=[
"codeshield",
"transformers",
"torch --index-url https://download.pytorch.org/whl/cpu",
],
@ -61,4 +60,14 @@ def available_providers() -> List[ProviderSpec]:
provider_data_validator="llama_stack.providers.adapters.safety.together.TogetherProviderDataValidator",
),
),
InlineProviderSpec(
api=Api.safety,
provider_type="meta-reference/codeshield",
pip_packages=[
"codeshield",
],
module="llama_stack.providers.impls.meta_reference.codeshield",
config_class="llama_stack.providers.impls.meta_reference.codeshield.CodeShieldConfig",
api_dependencies=[],
),
]

5
llama_stack/providers/tests/__init__.py Normal file
View file

@ -0,0 +1,5 @@
# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under the terms described in the LICENSE file in
# the root directory of this source tree.

5
llama_stack/providers/tests/agents/__init__.py Normal file
View file

@ -0,0 +1,5 @@
# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under the terms described in the LICENSE file in
# the root directory of this source tree.

5
llama_stack/providers/tests/inference/__init__.py Normal file
View file

@ -0,0 +1,5 @@
# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under the terms described in the LICENSE file in
# the root directory of this source tree.

25
llama_stack/providers/tests/inference/provider_config_example.yaml Normal file
View file

@ -0,0 +1,25 @@
providers:
- provider_id: test-ollama
provider_type: remote::ollama
config:
host: localhost
port: 11434
- provider_id: test-tgi
provider_type: remote::tgi
config:
url: http://localhost:7001
- provider_id: test-remote
provider_type: remote
config:
host: localhost
port: 7002
- provider_id: test-together
provider_type: remote::together
config: {}
# if a provider needs private keys from the client, they use the
# "get_request_provider_data" function (see distribution/request_headers.py)
# this is a place to provide such data.
provider_data:
"test-together":
together_api_key:
0xdeadbeefputrealapikeyhere

243
llama_stack/providers/tests/inference/test_inference.py Normal file
View file

@ -0,0 +1,243 @@
# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under the terms described in the LICENSE file in
# the root directory of this source tree.
import itertools
import pytest
import pytest_asyncio
from llama_models.llama3.api.datatypes import * # noqa: F403
from llama_stack.apis.inference import * # noqa: F403
from llama_stack.distribution.datatypes import * # noqa: F403
from llama_stack.providers.tests.resolver import resolve_impls_for_test
# How to run this test:
#
# 1. Ensure you have a conda with the right dependencies installed. This is a bit tricky
# since it depends on the provider you are testing. On top of that you need
# `pytest` and `pytest-asyncio` installed.
#
# 2. Copy and modify the provider_config_example.yaml depending on the provider you are testing.
#
# 3. Run:
#
# ```bash
# PROVIDER_ID=<your_provider> \
# PROVIDER_CONFIG=provider_config.yaml \
# pytest -s llama_stack/providers/tests/memory/test_inference.py \
# --tb=short --disable-warnings
# ```
def group_chunks(response):
return {
event_type: list(group)
for event_type, group in itertools.groupby(
response, key=lambda chunk: chunk.event.event_type
)
}
Llama_8B = "Llama3.1-8B-Instruct"
Llama_3B = "Llama3.2-3B-Instruct"
def get_expected_stop_reason(model: str):
return StopReason.end_of_message if "Llama3.1" in model else StopReason.end_of_turn
# This is going to create multiple Stack impls without tearing down the previous one
# Fix that!
@pytest_asyncio.fixture(
scope="session",
params=[
{"model": Llama_8B},
{"model": Llama_3B},
],
ids=lambda d: d["model"],
)
async def inference_settings(request):
model = request.param["model"]
impls = await resolve_impls_for_test(
Api.inference,
models=[
ModelDef(
identifier=model,
llama_model=model,
)
],
)
return {
"impl": impls[Api.inference],
"common_params": {
"model": model,
"tool_choice": ToolChoice.auto,
"tool_prompt_format": (
ToolPromptFormat.json
if "Llama3.1" in model
else ToolPromptFormat.python_list
),
},
}
@pytest.fixture
def sample_messages():
return [
SystemMessage(content="You are a helpful assistant."),
UserMessage(content="What's the weather like today?"),
]
@pytest.fixture
def sample_tool_definition():
return ToolDefinition(
tool_name="get_weather",
description="Get the current weather",
parameters={
"location": ToolParamDefinition(
param_type="string",
description="The city and state, e.g. San Francisco, CA",
),
},
)
@pytest.mark.asyncio
async def test_chat_completion_non_streaming(inference_settings, sample_messages):
inference_impl = inference_settings["impl"]
response = await inference_impl.chat_completion(
messages=sample_messages,
stream=False,
**inference_settings["common_params"],
)
assert isinstance(response, ChatCompletionResponse)
assert response.completion_message.role == "assistant"
assert isinstance(response.completion_message.content, str)
assert len(response.completion_message.content) > 0
@pytest.mark.asyncio
async def test_chat_completion_streaming(inference_settings, sample_messages):
inference_impl = inference_settings["impl"]
response = [
r
async for r in inference_impl.chat_completion(
messages=sample_messages,
stream=True,
**inference_settings["common_params"],
)
]
assert len(response) > 0
assert all(
isinstance(chunk, ChatCompletionResponseStreamChunk) for chunk in response
)
grouped = group_chunks(response)
assert len(grouped[ChatCompletionResponseEventType.start]) == 1
assert len(grouped[ChatCompletionResponseEventType.progress]) > 0
assert len(grouped[ChatCompletionResponseEventType.complete]) == 1
end = grouped[ChatCompletionResponseEventType.complete][0]
assert end.event.stop_reason == StopReason.end_of_turn
@pytest.mark.asyncio
async def test_chat_completion_with_tool_calling(
inference_settings,
sample_messages,
sample_tool_definition,
):
inference_impl = inference_settings["impl"]
messages = sample_messages + [
UserMessage(
content="What's the weather like in San Francisco?",
)
]
response = await inference_impl.chat_completion(
messages=messages,
tools=[sample_tool_definition],
stream=False,
**inference_settings["common_params"],
)
assert isinstance(response, ChatCompletionResponse)
message = response.completion_message
# This is not supported in most providers :/ they don't return eom_id / eot_id
# stop_reason = get_expected_stop_reason(inference_settings["common_params"]["model"])
# assert message.stop_reason == stop_reason
assert message.tool_calls is not None
assert len(message.tool_calls) > 0
call = message.tool_calls[0]
assert call.tool_name == "get_weather"
assert "location" in call.arguments
assert "San Francisco" in call.arguments["location"]
@pytest.mark.asyncio
async def test_chat_completion_with_tool_calling_streaming(
inference_settings,
sample_messages,
sample_tool_definition,
):
inference_impl = inference_settings["impl"]
messages = sample_messages + [
UserMessage(
content="What's the weather like in San Francisco?",
)
]
response = [
r
async for r in inference_impl.chat_completion(
messages=messages,
tools=[sample_tool_definition],
stream=True,
**inference_settings["common_params"],
)
]
assert len(response) > 0
assert all(
isinstance(chunk, ChatCompletionResponseStreamChunk) for chunk in response
)
grouped = group_chunks(response)
assert len(grouped[ChatCompletionResponseEventType.start]) == 1
assert len(grouped[ChatCompletionResponseEventType.progress]) > 0
assert len(grouped[ChatCompletionResponseEventType.complete]) == 1
# This is not supported in most providers :/ they don't return eom_id / eot_id
# expected_stop_reason = get_expected_stop_reason(
# inference_settings["common_params"]["model"]
# )
# end = grouped[ChatCompletionResponseEventType.complete][0]
# assert end.event.stop_reason == expected_stop_reason
model = inference_settings["common_params"]["model"]
if "Llama3.1" in model:
assert all(
isinstance(chunk.event.delta, ToolCallDelta)
for chunk in grouped[ChatCompletionResponseEventType.progress]
)
first = grouped[ChatCompletionResponseEventType.progress][0]
assert first.event.delta.parse_status == ToolCallParseStatus.started
last = grouped[ChatCompletionResponseEventType.progress][-1]
# assert last.event.stop_reason == expected_stop_reason
assert last.event.delta.parse_status == ToolCallParseStatus.success
assert isinstance(last.event.delta.content, ToolCall)
call = last.event.delta.content
assert call.tool_name == "get_weather"
assert "location" in call.arguments
assert "San Francisco" in call.arguments["location"]

126
llama_stack/providers/tests/inference/test_prompt_adapter.py Normal file
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@ -0,0 +1,126 @@
# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under the terms described in the LICENSE file in
# the root directory of this source tree.
import unittest
from llama_models.llama3.api import * # noqa: F403
from llama_stack.inference.api import * # noqa: F403
from llama_stack.inference.prompt_adapter import chat_completion_request_to_messages
MODEL = "Llama3.1-8B-Instruct"
class PrepareMessagesTests(unittest.IsolatedAsyncioTestCase):
async def test_system_default(self):
content = "Hello !"
request = ChatCompletionRequest(
model=MODEL,
messages=[
UserMessage(content=content),
],
)
messages = chat_completion_request_to_messages(request)
self.assertEqual(len(messages), 2)
self.assertEqual(messages[-1].content, content)
self.assertTrue("Cutting Knowledge Date: December 2023" in messages[0].content)
async def test_system_builtin_only(self):
content = "Hello !"
request = ChatCompletionRequest(
model=MODEL,
messages=[
UserMessage(content=content),
],
tools=[
ToolDefinition(tool_name=BuiltinTool.code_interpreter),
ToolDefinition(tool_name=BuiltinTool.brave_search),
],
)
messages = chat_completion_request_to_messages(request)
self.assertEqual(len(messages), 2)
self.assertEqual(messages[-1].content, content)
self.assertTrue("Cutting Knowledge Date: December 2023" in messages[0].content)
self.assertTrue("Tools: brave_search" in messages[0].content)
async def test_system_custom_only(self):
content = "Hello !"
request = ChatCompletionRequest(
model=MODEL,
messages=[
UserMessage(content=content),
],
tools=[
ToolDefinition(
tool_name="custom1",
description="custom1 tool",
parameters={
"param1": ToolParamDefinition(
param_type="str",
description="param1 description",
required=True,
),
},
)
],
tool_prompt_format=ToolPromptFormat.json,
)
messages = chat_completion_request_to_messages(request)
self.assertEqual(len(messages), 3)
self.assertTrue("Environment: ipython" in messages[0].content)
self.assertTrue("Return function calls in JSON format" in messages[1].content)
self.assertEqual(messages[-1].content, content)
async def test_system_custom_and_builtin(self):
content = "Hello !"
request = ChatCompletionRequest(
model=MODEL,
messages=[
UserMessage(content=content),
],
tools=[
ToolDefinition(tool_name=BuiltinTool.code_interpreter),
ToolDefinition(tool_name=BuiltinTool.brave_search),
ToolDefinition(
tool_name="custom1",
description="custom1 tool",
parameters={
"param1": ToolParamDefinition(
param_type="str",
description="param1 description",
required=True,
),
},
),
],
)
messages = chat_completion_request_to_messages(request)
self.assertEqual(len(messages), 3)
self.assertTrue("Environment: ipython" in messages[0].content)
self.assertTrue("Tools: brave_search" in messages[0].content)
self.assertTrue("Return function calls in JSON format" in messages[1].content)
self.assertEqual(messages[-1].content, content)
async def test_user_provided_system_message(self):
content = "Hello !"
system_prompt = "You are a pirate"
request = ChatCompletionRequest(
model=MODEL,
messages=[
SystemMessage(content=system_prompt),
UserMessage(content=content),
],
tools=[
ToolDefinition(tool_name=BuiltinTool.code_interpreter),
],
)
messages = chat_completion_request_to_messages(request)
self.assertEqual(len(messages), 2, messages)
self.assertTrue(messages[0].content.endswith(system_prompt))
self.assertEqual(messages[-1].content, content)

5
llama_stack/providers/tests/memory/__init__.py Normal file
View file

@ -0,0 +1,5 @@
# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under the terms described in the LICENSE file in
# the root directory of this source tree.

24
llama_stack/providers/tests/memory/provider_config_example.yaml Normal file
View file

@ -0,0 +1,24 @@
providers:
- provider_id: test-faiss
provider_type: meta-reference
config: {}
- provider_id: test-chroma
provider_type: remote::chroma
config:
host: localhost
port: 6001
- provider_id: test-remote
provider_type: remote
config:
host: localhost
port: 7002
- provider_id: test-weaviate
provider_type: remote::weaviate
config: {}
# if a provider needs private keys from the client, they use the
# "get_request_provider_data" function (see distribution/request_headers.py)
# this is a place to provide such data.
provider_data:
"test-weaviate":
weaviate_api_key: 0xdeadbeefputrealapikeyhere
weaviate_cluster_url: http://foobarbaz

119
llama_stack/providers/tests/memory/test_memory.py Normal file
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@ -0,0 +1,119 @@
# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under the terms described in the LICENSE file in
# the root directory of this source tree.
import pytest
import pytest_asyncio
from llama_stack.apis.memory import * # noqa: F403
from llama_stack.distribution.datatypes import * # noqa: F403
from llama_stack.providers.tests.resolver import resolve_impls_for_test
# How to run this test:
#
# 1. Ensure you have a conda with the right dependencies installed. This is a bit tricky
# since it depends on the provider you are testing. On top of that you need
# `pytest` and `pytest-asyncio` installed.
#
# 2. Copy and modify the provider_config_example.yaml depending on the provider you are testing.
#
# 3. Run:
#
# ```bash
# PROVIDER_ID=<your_provider> \
# PROVIDER_CONFIG=provider_config.yaml \
# pytest -s llama_stack/providers/tests/memory/test_memory.py \
# --tb=short --disable-warnings
# ```
@pytest_asyncio.fixture(scope="session")
async def memory_impl():
impls = await resolve_impls_for_test(
Api.memory,
memory_banks=[],
)
return impls[Api.memory]
@pytest.fixture
def sample_documents():
return [
MemoryBankDocument(
document_id="doc1",
content="Python is a high-level programming language.",
metadata={"category": "programming", "difficulty": "beginner"},
),
MemoryBankDocument(
document_id="doc2",
content="Machine learning is a subset of artificial intelligence.",
metadata={"category": "AI", "difficulty": "advanced"},
),
MemoryBankDocument(
document_id="doc3",
content="Data structures are fundamental to computer science.",
metadata={"category": "computer science", "difficulty": "intermediate"},
),
MemoryBankDocument(
document_id="doc4",
content="Neural networks are inspired by biological neural networks.",
metadata={"category": "AI", "difficulty": "advanced"},
),
]
async def register_memory_bank(memory_impl: Memory):
bank = VectorMemoryBankDef(
identifier="test_bank",
embedding_model="all-MiniLM-L6-v2",
chunk_size_in_tokens=512,
overlap_size_in_tokens=64,
)
await memory_impl.register_memory_bank(bank)
@pytest.mark.asyncio
async def test_query_documents(memory_impl, sample_documents):
with pytest.raises(ValueError):
await memory_impl.insert_documents("test_bank", sample_documents)
await register_memory_bank(memory_impl)
await memory_impl.insert_documents("test_bank", sample_documents)
query1 = "programming language"
response1 = await memory_impl.query_documents("test_bank", query1)
assert_valid_response(response1)
assert any("Python" in chunk.content for chunk in response1.chunks)
# Test case 3: Query with semantic similarity
query3 = "AI and brain-inspired computing"
response3 = await memory_impl.query_documents("test_bank", query3)
assert_valid_response(response3)
assert any("neural networks" in chunk.content.lower() for chunk in response3.chunks)
# Test case 4: Query with limit on number of results
query4 = "computer"
params4 = {"max_chunks": 2}
response4 = await memory_impl.query_documents("test_bank", query4, params4)
assert_valid_response(response4)
assert len(response4.chunks) <= 2
# Test case 5: Query with threshold on similarity score
query5 = "quantum computing" # Not directly related to any document
params5 = {"score_threshold": 0.5}
response5 = await memory_impl.query_documents("test_bank", query5, params5)
assert_valid_response(response5)
assert all(score >= 0.5 for score in response5.scores)
def assert_valid_response(response: QueryDocumentsResponse):
assert isinstance(response, QueryDocumentsResponse)
assert len(response.chunks) > 0
assert len(response.scores) > 0
assert len(response.chunks) == len(response.scores)
for chunk in response.chunks:
assert isinstance(chunk.content, str)
assert chunk.document_id is not None

100
llama_stack/providers/tests/resolver.py Normal file
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@ -0,0 +1,100 @@
# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under the terms described in the LICENSE file in
# the root directory of this source tree.
import json
import os
from datetime import datetime
import yaml
from llama_stack.distribution.datatypes import * # noqa: F403
from llama_stack.distribution.configure import parse_and_maybe_upgrade_config
from llama_stack.distribution.request_headers import set_request_provider_data
from llama_stack.distribution.resolver import resolve_impls_with_routing
async def resolve_impls_for_test(
api: Api,
models: List[ModelDef] = None,
memory_banks: List[MemoryBankDef] = None,
shields: List[ShieldDef] = None,
):
if "PROVIDER_CONFIG" not in os.environ:
raise ValueError(
"You must set PROVIDER_CONFIG to a YAML file containing provider config"
)
with open(os.environ["PROVIDER_CONFIG"], "r") as f:
config_dict = yaml.safe_load(f)
if "providers" not in config_dict:
raise ValueError("Config file should contain a `providers` key")
providers_by_id = {x["provider_id"]: x for x in config_dict["providers"]}
if len(providers_by_id) == 0:
raise ValueError("No providers found in config file")
if "PROVIDER_ID" in os.environ:
provider_id = os.environ["PROVIDER_ID"]
if provider_id not in providers_by_id:
raise ValueError(f"Provider ID {provider_id} not found in config file")
provider = providers_by_id[provider_id]
else:
provider = list(providers_by_id.values())[0]
provider_id = provider["provider_id"]
print(f"No provider ID specified, picking first `{provider_id}`")
models = models or []
shields = shields or []
memory_banks = memory_banks or []
models = [
ModelDef(
**{
**m.dict(),
"provider_id": provider_id,
}
)
for m in models
]
shields = [
ShieldDef(
**{
**s.dict(),
"provider_id": provider_id,
}
)
for s in shields
]
memory_banks = [
MemoryBankDef(
**{
**m.dict(),
"provider_id": provider_id,
}
)
for m in memory_banks
]
run_config = dict(
built_at=datetime.now(),
image_name="test-fixture",
apis=[api],
providers={api.value: [Provider(**provider)]},
models=models,
memory_banks=memory_banks,
shields=shields,
)
run_config = parse_and_maybe_upgrade_config(run_config)
impls = await resolve_impls_with_routing(run_config)
if "provider_data" in config_dict:
provider_data = config_dict["provider_data"].get(provider_id, {})
if provider_data:
set_request_provider_data(
{"X-LlamaStack-ProviderData": json.dumps(provider_data)}
)
return impls

35
llama_stack/providers/utils/inference/model_registry.py Normal file
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@ -0,0 +1,35 @@
# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under the terms described in the LICENSE file in
# the root directory of this source tree.
from typing import Dict
from llama_models.sku_list import resolve_model
from llama_stack.apis.models import * # noqa: F403
class ModelRegistryHelper:
def __init__(self, stack_to_provider_models_map: Dict[str, str]):
self.stack_to_provider_models_map = stack_to_provider_models_map
def map_to_provider_model(self, identifier: str) -> str:
model = resolve_model(identifier)
if not model:
raise ValueError(f"Unknown model: `{identifier}`")
if identifier not in self.stack_to_provider_models_map:
raise ValueError(
f"Model {identifier} not found in map {self.stack_to_provider_models_map}"
)
return self.stack_to_provider_models_map[identifier]
async def register_model(self, model: ModelDef) -> None:
if model.identifier not in self.stack_to_provider_models_map:
raise ValueError(
f"Unsupported model {model.identifier}. Supported models: {self.stack_to_provider_models_map.keys()}"
)

189
llama_stack/providers/utils/inference/openai_compat.py Normal file
View file

@ -0,0 +1,189 @@
# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under the terms described in the LICENSE file in
# the root directory of this source tree.
from typing import AsyncGenerator, Optional
from llama_models.llama3.api.chat_format import ChatFormat
from llama_models.llama3.api.datatypes import StopReason
from llama_stack.apis.inference import * # noqa: F403
from pydantic import BaseModel
class OpenAICompatCompletionChoiceDelta(BaseModel):
content: str
class OpenAICompatCompletionChoice(BaseModel):
finish_reason: Optional[str] = None
text: Optional[str] = None
delta: Optional[OpenAICompatCompletionChoiceDelta] = None
class OpenAICompatCompletionResponse(BaseModel):
choices: List[OpenAICompatCompletionChoice]
def get_sampling_options(request: ChatCompletionRequest) -> dict:
options = {}
if params := request.sampling_params:
for attr in {"temperature", "top_p", "top_k", "max_tokens"}:
if getattr(params, attr):
options[attr] = getattr(params, attr)
if params.repetition_penalty is not None and params.repetition_penalty != 1.0:
options["repeat_penalty"] = params.repetition_penalty
return options
def text_from_choice(choice) -> str:
if hasattr(choice, "delta") and choice.delta:
return choice.delta.content
return choice.text
def process_chat_completion_response(
request: ChatCompletionRequest,
response: OpenAICompatCompletionResponse,
formatter: ChatFormat,
) -> ChatCompletionResponse:
choice = response.choices[0]
stop_reason = None
if reason := choice.finish_reason:
if reason in ["stop", "eos"]:
stop_reason = StopReason.end_of_turn
elif reason == "eom":
stop_reason = StopReason.end_of_message
elif reason == "length":
stop_reason = StopReason.out_of_tokens
if stop_reason is None:
stop_reason = StopReason.out_of_tokens
completion_message = formatter.decode_assistant_message_from_content(
text_from_choice(choice), stop_reason
)
return ChatCompletionResponse(
completion_message=completion_message,
logprobs=None,
)
async def process_chat_completion_stream_response(
request: ChatCompletionRequest,
stream: AsyncGenerator[OpenAICompatCompletionResponse, None],
formatter: ChatFormat,
) -> AsyncGenerator:
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.start,
delta="",
)
)
buffer = ""
ipython = False
stop_reason = None
async for chunk in stream:
choice = chunk.choices[0]
finish_reason = choice.finish_reason
if finish_reason:
if stop_reason is None and finish_reason in ["stop", "eos", "eos_token"]:
stop_reason = StopReason.end_of_turn
elif stop_reason is None and finish_reason == "length":
stop_reason = StopReason.out_of_tokens
break
text = text_from_choice(choice)
# check if its a tool call ( aka starts with <|python_tag|> )
if not ipython and text.startswith("<|python_tag|>"):
ipython = True
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.progress,
delta=ToolCallDelta(
content="",
parse_status=ToolCallParseStatus.started,
),
)
)
buffer += text
continue
if text == "<|eot_id|>":
stop_reason = StopReason.end_of_turn
text = ""
continue
elif text == "<|eom_id|>":
stop_reason = StopReason.end_of_message
text = ""
continue
if ipython:
buffer += text
delta = ToolCallDelta(
content=text,
parse_status=ToolCallParseStatus.in_progress,
)
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.progress,
delta=delta,
stop_reason=stop_reason,
)
)
else:
buffer += text
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.progress,
delta=text,
stop_reason=stop_reason,
)
)
# parse tool calls and report errors
message = formatter.decode_assistant_message_from_content(buffer, stop_reason)
parsed_tool_calls = len(message.tool_calls) > 0
if ipython and not parsed_tool_calls:
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.progress,
delta=ToolCallDelta(
content="",
parse_status=ToolCallParseStatus.failure,
),
stop_reason=stop_reason,
)
)
for tool_call in message.tool_calls:
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.progress,
delta=ToolCallDelta(
content=tool_call,
parse_status=ToolCallParseStatus.success,
),
stop_reason=stop_reason,
)
)
yield ChatCompletionResponseStreamChunk(
event=ChatCompletionResponseEvent(
event_type=ChatCompletionResponseEventType.complete,
delta="",
stop_reason=stop_reason,
)
)

28
llama_stack/providers/utils/inference/augment_messages.py → llama_stack/providers/utils/inference/prompt_adapter.py
View file

@ -3,7 +3,11 @@
#
# This source code is licensed under the terms described in the LICENSE file in
# the root directory of this source tree.
from typing import Tuple
from llama_models.llama3.api.chat_format import ChatFormat
from termcolor import cprint
from llama_models.llama3.api.datatypes import * # noqa: F403
from llama_stack.apis.inference import * # noqa: F403
from llama_models.datatypes import ModelFamily
@ -19,7 +23,28 @@ from llama_models.sku_list import resolve_model
from llama_stack.providers.utils.inference import supported_inference_models
def augment_messages_for_tools(request: ChatCompletionRequest) -> List[Message]:
def chat_completion_request_to_prompt(
request: ChatCompletionRequest, formatter: ChatFormat
) -> str:
messages = chat_completion_request_to_messages(request)
model_input = formatter.encode_dialog_prompt(messages)
return formatter.tokenizer.decode(model_input.tokens)
def chat_completion_request_to_model_input_info(
request: ChatCompletionRequest, formatter: ChatFormat
) -> Tuple[str, int]:
messages = chat_completion_request_to_messages(request)
model_input = formatter.encode_dialog_prompt(messages)
return (
formatter.tokenizer.decode(model_input.tokens),
len(model_input.tokens),
)
def chat_completion_request_to_messages(
request: ChatCompletionRequest,
) -> List[Message]:
"""Reads chat completion request and augments the messages to handle tools.
For eg. for llama_3_1, add system message with the appropriate tools or
add user messsage for custom tools, etc.
@ -48,7 +73,6 @@ def augment_messages_for_tools(request: ChatCompletionRequest) -> List[Message]:
def augment_messages_for_tools_llama_3_1(
request: ChatCompletionRequest,
) -> List[Message]:
assert request.tool_choice == ToolChoice.auto, "Only `ToolChoice.auto` supported"
existing_messages = request.messages

36
llama_stack/providers/utils/inference/routable.py
View file

@ -1,36 +0,0 @@
# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under the terms described in the LICENSE file in
# the root directory of this source tree.
from typing import Dict, List
from llama_models.sku_list import resolve_model
from llama_stack.distribution.datatypes import RoutableProvider
class RoutableProviderForModels(RoutableProvider):
def __init__(self, stack_to_provider_models_map: Dict[str, str]):
self.stack_to_provider_models_map = stack_to_provider_models_map
async def validate_routing_keys(self, routing_keys: List[str]):
for routing_key in routing_keys:
if routing_key not in self.stack_to_provider_models_map:
raise ValueError(
f"Routing key {routing_key} not found in map {self.stack_to_provider_models_map}"
)
def map_to_provider_model(self, routing_key: str) -> str:
model = resolve_model(routing_key)
if not model:
raise ValueError(f"Unknown model: `{routing_key}`")
if routing_key not in self.stack_to_provider_models_map:
raise ValueError(
f"Model {routing_key} not found in map {self.stack_to_provider_models_map}"
)
return self.stack_to_provider_models_map[routing_key]

4
llama_stack/providers/utils/kvstore/config.py
View file

@ -31,6 +31,10 @@ class RedisKVStoreConfig(CommonConfig):
host: str = "localhost"
port: int = 6379
@property
def url(self) -> str:
return f"redis://{self.host}:{self.port}"
class SqliteKVStoreConfig(CommonConfig):
type: Literal[KVStoreType.sqlite.value] = KVStoreType.sqlite.value

12
llama_stack/providers/utils/memory/vector_store.py
View file

@ -146,22 +146,22 @@ class EmbeddingIndex(ABC):
@dataclass
class BankWithIndex:
bank: MemoryBank
bank: MemoryBankDef
index: EmbeddingIndex
async def insert_documents(
self,
documents: List[MemoryBankDocument],
) -> None:
model = get_embedding_model(self.bank.config.embedding_model)
model = get_embedding_model(self.bank.embedding_model)
for doc in documents:
content = await content_from_doc(doc)
chunks = make_overlapped_chunks(
doc.document_id,
content,
self.bank.config.chunk_size_in_tokens,
self.bank.config.overlap_size_in_tokens
or (self.bank.config.chunk_size_in_tokens // 4),
self.bank.chunk_size_in_tokens,
self.bank.overlap_size_in_tokens
or (self.bank.chunk_size_in_tokens // 4),
)
if not chunks:
continue
@ -189,6 +189,6 @@ class BankWithIndex:
else:
query_str = _process(query)
model = get_embedding_model(self.bank.config.embedding_model)
model = get_embedding_model(self.bank.embedding_model)
query_vector = model.encode([query_str])[0].astype(np.float32)
return await self.index.query(query_vector, k)