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bc64635835
When using bash style substitution env variable in distribution
template, we are processing the string and convert it to the type
associated with the provider's config class. This allows us to return
the proper type. This is crucial for api key since they are not strings
anymore but SecretStr. If the key is unset we will get an empty string
which will result in a Pydantic error like:
```
ERROR 2025-09-25 21:40:44,565 __main__:527 core::server: Error creating app: 1 validation error for AnthropicConfig
api_key
Input should be a valid string
For further information visit
https://errors.pydantic.dev/2.11/v/string_type
```
Signed-off-by: Sébastien Han <seb@redhat.com>
61 lines
1.9 KiB
Python
61 lines
1.9 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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from pathlib import Path
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from pydantic import BaseModel, Field, field_validator
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from llama_stack.core.secret_types import MySecretStr
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from llama_stack.schema_utils import json_schema_type
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@json_schema_type
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class VLLMInferenceAdapterConfig(BaseModel):
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url: str | None = Field(
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default=None,
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description="The URL for the vLLM model serving endpoint",
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)
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max_tokens: int = Field(
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default=4096,
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description="Maximum number of tokens to generate.",
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)
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api_token: MySecretStr = Field(
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description="The API token",
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)
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tls_verify: bool | str = Field(
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default=True,
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description="Whether to verify TLS certificates. Can be a boolean or a path to a CA certificate file.",
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)
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refresh_models: bool = Field(
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default=False,
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description="Whether to refresh models periodically",
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)
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@field_validator("tls_verify")
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@classmethod
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def validate_tls_verify(cls, v):
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if isinstance(v, str):
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# Otherwise, treat it as a cert path
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cert_path = Path(v).expanduser().resolve()
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if not cert_path.exists():
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raise ValueError(f"TLS certificate file does not exist: {v}")
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if not cert_path.is_file():
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raise ValueError(f"TLS certificate path is not a file: {v}")
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return v
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return v
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@classmethod
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def sample_run_config(
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cls,
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url: str = "${env.VLLM_URL:=}",
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**kwargs,
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):
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return {
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"url": url,
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"max_tokens": "${env.VLLM_MAX_TOKENS:=4096}",
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"api_token": "${env.VLLM_API_TOKEN:=fake}",
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"tls_verify": "${env.VLLM_TLS_VERIFY:=true}",
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}
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