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56 lines
1.7 KiB
Python
56 lines
1.7 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 httpx
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from llama_stack.log import get_logger
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from . import NVIDIAConfig
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logger = get_logger(name=__name__, category="core")
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def _is_nvidia_hosted(config: NVIDIAConfig) -> bool:
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return "integrate.api.nvidia.com" in config.url
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async def _get_health(url: str) -> tuple[bool, bool]:
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"""
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Query {url}/v1/health/{live,ready} to check if the server is running and ready
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Args:
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url (str): URL of the server
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Returns:
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Tuple[bool, bool]: (is_live, is_ready)
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"""
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async with httpx.AsyncClient() as client:
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live = await client.get(f"{url}/v1/health/live")
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ready = await client.get(f"{url}/v1/health/ready")
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return live.status_code == 200, ready.status_code == 200
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async def check_health(config: NVIDIAConfig) -> None:
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"""
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Check if the server is running and ready
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Args:
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url (str): URL of the server
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Raises:
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RuntimeError: If the server is not running or ready
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"""
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if not _is_nvidia_hosted(config):
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logger.info("Checking NVIDIA NIM health...")
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try:
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is_live, is_ready = await _get_health(config.url)
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if not is_live:
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raise ConnectionError("NVIDIA NIM is not running")
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if not is_ready:
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raise ConnectionError("NVIDIA NIM is not ready")
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# TODO(mf): should we wait for the server to be ready?
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except httpx.ConnectError as e:
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raise ConnectionError(f"Failed to connect to NVIDIA NIM: {e}") from e
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