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https://github.com/meta-llama/llama-stack.git
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b74f25035c
Added the support for mongoDB as KV store validated in mongodb, it is able to store agent data, session data and turn data <img width="1332" alt="image" src="https://github.com/user-attachments/assets/867700a4-b9ee-4a3c-8278-f39074d39d56"> this is how run.yaml would look: ``` config: persistence_store: type: mongodb namespace: null host: localhost port: 27017 db: llamastack user: "" password: "" collection_name: llamastack_kvstore ``` --------- Co-authored-by: shrinitgoyal <shrinit.goyal@engati.com>
69 lines
2.5 KiB
Python
69 lines
2.5 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 logging
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from datetime import datetime
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from typing import List, Optional
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from pymongo import MongoClient
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from llama_stack.providers.utils.kvstore import KVStore, MongoDBKVStoreConfig
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log = logging.getLogger(__name__)
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class MongoDBKVStoreImpl(KVStore):
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def __init__(self, config: MongoDBKVStoreConfig):
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self.config = config
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self.conn = None
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self.collection = None
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async def initialize(self) -> None:
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try:
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conn_creds = {
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"host": self.config.host,
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"port": self.config.port,
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"username": self.config.user,
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"password": self.config.password,
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}
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conn_creds = {k: v for k, v in conn_creds.items() if v is not None}
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self.conn = MongoClient(**conn_creds)
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self.collection = self.conn[self.config.db][self.config.collection_name]
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except Exception as e:
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log.exception("Could not connect to MongoDB database server")
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raise RuntimeError("Could not connect to MongoDB database server") from e
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def _namespaced_key(self, key: str) -> str:
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if not self.config.namespace:
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return key
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return f"{self.config.namespace}:{key}"
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async def set(
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self, key: str, value: str, expiration: Optional[datetime] = None
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) -> None:
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key = self._namespaced_key(key)
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update_query = {"$set": {"value": value, "expiration": expiration}}
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self.collection.update_one({"key": key}, update_query, upsert=True)
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async def get(self, key: str) -> Optional[str]:
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key = self._namespaced_key(key)
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query = {"key": key}
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result = self.collection.find_one(query, {"value": 1, "_id": 0})
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return result["value"] if result else None
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async def delete(self, key: str) -> None:
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key = self._namespaced_key(key)
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self.collection.delete_one({"key": key})
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async def range(self, start_key: str, end_key: str) -> List[str]:
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start_key = self._namespaced_key(start_key)
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end_key = self._namespaced_key(end_key)
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query = {
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"key": {"$gte": start_key, "$lt": end_key},
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}
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cursor = self.collection.find(query, {"value": 1, "_id": 0}).sort("key", 1)
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return [doc["value"] for doc in cursor]
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