llama-stack-mirror/llama_stack/apis/shields/shields.py
Ashwin Bharambe 09269e2a44
Enable sane naming of registered objects with defaults (#429)
# What does this PR do? 

This is a follow-up to #425. That PR allows for specifying models in the
registry, but each entry needs to look like:

```yaml
- identifier: ...
  provider_id: ...
  provider_resource_identifier: ...
```

This is headache-inducing.

The current PR makes this situation better by adopting the shape of our
APIs. Namely, we need the user to only specify `model-id`. The rest
should be optional and figured out by the Stack. You can always override
it.

Here's what example `ollama` "full stack" registry looks like (we still
need to kill or simplify shield_type crap):
```yaml
models:
- model_id: Llama3.2-3B-Instruct
- model_id: Llama-Guard-3-1B
shields:
- shield_id: llama_guard
  shield_type: llama_guard
```

## Test Plan

See test plan for #425. Re-ran it.
2024-11-12 11:18:05 -08:00

66 lines
1.9 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 enum import Enum
from typing import Any, Dict, List, Literal, Optional, Protocol, runtime_checkable
from llama_models.schema_utils import json_schema_type, webmethod
from pydantic import BaseModel
from llama_stack.apis.resource import Resource, ResourceType
@json_schema_type
class ShieldType(Enum):
generic_content_shield = "generic_content_shield"
llama_guard = "llama_guard"
code_scanner = "code_scanner"
prompt_guard = "prompt_guard"
class CommonShieldFields(BaseModel):
shield_type: ShieldType
params: Optional[Dict[str, Any]] = None
@json_schema_type
class Shield(CommonShieldFields, Resource):
"""A safety shield resource that can be used to check content"""
type: Literal[ResourceType.shield.value] = ResourceType.shield.value
@property
def shield_id(self) -> str:
return self.identifier
@property
def provider_shield_id(self) -> str:
return self.provider_resource_id
class ShieldInput(CommonShieldFields):
shield_id: str
provider_id: Optional[str] = None
provider_shield_id: Optional[str] = None
@runtime_checkable
class Shields(Protocol):
@webmethod(route="/shields/list", method="GET")
async def list_shields(self) -> List[Shield]: ...
@webmethod(route="/shields/get", method="GET")
async def get_shield(self, identifier: str) -> Optional[Shield]: ...
@webmethod(route="/shields/register", method="POST")
async def register_shield(
self,
shield_id: str,
shield_type: ShieldType,
provider_shield_id: Optional[str] = None,
provider_id: Optional[str] = None,
params: Optional[Dict[str, Any]] = None,
) -> Shield: ...