llama-stack/llama_stack/providers/utils/inference/model_registry.py
Dinesh Yeduguru 787e2034b7
model registration in ollama and vllm check against the available models in the provider (#446)
tests:
pytest -v -s -m "ollama"
llama_stack/providers/tests/inference/test_text_inference.py

pytest -v -s -m vllm_remote
llama_stack/providers/tests/inference/test_text_inference.py --env
VLLM_URL="http://localhost:9798/v1"

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2024-11-13 13:04:06 -08:00

67 lines
2.4 KiB
Python

# 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 collections import namedtuple
from typing import List, Optional
from llama_models.sku_list import all_registered_models
from llama_stack.providers.datatypes import Model, ModelsProtocolPrivate
ModelAlias = namedtuple("ModelAlias", ["provider_model_id", "aliases", "llama_model"])
def get_huggingface_repo(model_descriptor: str) -> Optional[str]:
for model in all_registered_models():
if model.descriptor() == model_descriptor:
return model.huggingface_repo
return None
def build_model_alias(provider_model_id: str, model_descriptor: str) -> ModelAlias:
return ModelAlias(
provider_model_id=provider_model_id,
aliases=[
model_descriptor,
get_huggingface_repo(model_descriptor),
],
llama_model=model_descriptor,
)
class ModelRegistryHelper(ModelsProtocolPrivate):
def __init__(self, model_aliases: List[ModelAlias]):
self.alias_to_provider_id_map = {}
self.provider_id_to_llama_model_map = {}
for alias_obj in model_aliases:
for alias in alias_obj.aliases:
self.alias_to_provider_id_map[alias] = alias_obj.provider_model_id
# also add a mapping from provider model id to itself for easy lookup
self.alias_to_provider_id_map[alias_obj.provider_model_id] = (
alias_obj.provider_model_id
)
self.provider_id_to_llama_model_map[alias_obj.provider_model_id] = (
alias_obj.llama_model
)
def get_provider_model_id(self, identifier: str) -> str:
if identifier in self.alias_to_provider_id_map:
return self.alias_to_provider_id_map[identifier]
else:
raise ValueError(f"Unknown model: `{identifier}`")
def get_llama_model(self, provider_model_id: str) -> str:
if provider_model_id in self.provider_id_to_llama_model_map:
return self.provider_id_to_llama_model_map[provider_model_id]
else:
return None
async def register_model(self, model: Model) -> Model:
model.provider_resource_id = self.get_provider_model_id(
model.provider_resource_id
)
return model