mirror of
https://github.com/meta-llama/llama-stack.git
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8563c76f88
- add field "metrcis" under API "/providers" - each provider can config "metrics" in run.yaml in "config" - if no "metrics": /provider/<provider_id> shows "metrics: null" in response - if has "metrics": /provider/<provider_id> show result in response - if has "metrics" but is not string type and not httpurl, raise ValidationError - add unit tests for providers - update "docs" Signed-off-by: Wen Zhou <wenzhou@redhat.com>
141 lines
5.2 KiB
Python
141 lines
5.2 KiB
Python
# Copyright (c) Meta Platforms, Inc. and affiliates.
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# All rights reserved.
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#
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# This source code is licensed under the terms described in the LICENSE file in
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# the root directory of this source tree.
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import asyncio
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from typing import Any
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from pydantic import BaseModel
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from llama_stack.apis.providers import ListProvidersResponse, ProviderInfo, Providers
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from llama_stack.log import get_logger
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from llama_stack.providers.datatypes import HealthResponse, HealthStatus
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from .datatypes import StackRunConfig
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from .utils.config import redact_sensitive_fields
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logger = get_logger(name=__name__, category="core")
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class ProviderImplConfig(BaseModel):
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run_config: StackRunConfig
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async def get_provider_impl(config, deps):
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impl = ProviderImpl(config, deps)
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await impl.initialize()
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return impl
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class ProviderImpl(Providers):
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def __init__(self, config, deps):
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self.config = config
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self.deps = deps
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async def initialize(self) -> None:
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pass
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async def shutdown(self) -> None:
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logger.debug("ProviderImpl.shutdown")
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pass
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async def list_providers(self) -> ListProvidersResponse:
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run_config = self.config.run_config
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safe_config = StackRunConfig(**redact_sensitive_fields(run_config.model_dump()))
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providers_health = await self.get_providers_health()
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ret = []
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for api, providers in safe_config.providers.items():
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for p in providers:
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# Skip providers that are not enabled
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if p.provider_id is None:
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continue
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# Filter out "metrics" to be shown in config duplicated
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metrics_url = p.config.get("metrics")
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config = {k: v for k, v in p.config.items() if k != "metrics"}
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ret.append(
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ProviderInfo(
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api=api,
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provider_id=p.provider_id,
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provider_type=p.provider_type,
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config=config,
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health=providers_health.get(api, {}).get(
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p.provider_id,
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HealthResponse(
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status=HealthStatus.NOT_IMPLEMENTED, message="Provider does not implement health check"
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),
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),
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metrics=metrics_url,
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)
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)
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return ListProvidersResponse(data=ret)
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async def inspect_provider(self, provider_id: str) -> ProviderInfo:
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all_providers = await self.list_providers()
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for p in all_providers.data:
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if p.provider_id == provider_id:
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return p
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raise ValueError(f"Provider {provider_id} not found")
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async def get_providers_health(self) -> dict[str, dict[str, HealthResponse]]:
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"""Get health status for all providers.
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Returns:
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Dict[str, Dict[str, HealthResponse]]: A dictionary mapping API names to provider health statuses.
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Each API maps to a dictionary of provider IDs to their health responses.
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"""
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providers_health: dict[str, dict[str, HealthResponse]] = {}
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# The timeout has to be long enough to allow all the providers to be checked, especially in
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# the case of the inference router health check since it checks all registered inference
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# providers.
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# The timeout must not be equal to the one set by health method for a given implementation,
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# otherwise we will miss some providers.
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timeout = 3.0
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async def check_provider_health(impl: Any) -> tuple[str, HealthResponse] | None:
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# Skip special implementations (inspect/providers) that don't have provider specs
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if not hasattr(impl, "__provider_spec__"):
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return None
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api_name = impl.__provider_spec__.api.name
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if not hasattr(impl, "health"):
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return (
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api_name,
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HealthResponse(
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status=HealthStatus.NOT_IMPLEMENTED, message="Provider does not implement health check"
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),
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)
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try:
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health = await asyncio.wait_for(impl.health(), timeout=timeout)
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return api_name, health
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except TimeoutError:
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return (
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api_name,
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HealthResponse(
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status=HealthStatus.ERROR, message=f"Health check timed out after {timeout} seconds"
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),
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)
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except Exception as e:
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return (
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api_name,
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HealthResponse(status=HealthStatus.ERROR, message=f"Health check failed: {str(e)}"),
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)
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# Create tasks for all providers
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tasks = [check_provider_health(impl) for impl in self.deps.values()]
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# Wait for all health checks to complete
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results = await asyncio.gather(*tasks)
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# Organize results by API and provider ID
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for result in results:
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if result is None: # Skip special implementations
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continue
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api_name, health_response = result
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providers_health[api_name] = health_response
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return providers_health
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