Allow using an "inline" version of Chroma using PersistentClient

llama_stack/providers/remote/memory/chroma/config.py

@@ -0,0 +1,26 @@
+# 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 typing import Any, Dict, Optional
+
+from llama_models.schema_utils import json_schema_type
+from pydantic import BaseModel, model_validator
+
+
+@json_schema_type
+class ChromaConfig(BaseModel):
+    # You can either specify the url of the chroma server or the path to the local db
+    url: Optional[str] = None
+    db_path: Optional[str] = None
+
+    @model_validator(mode="after")
+    def check_url_or_db_path(self):
+        if not (self.url or self.db_path):
+            raise ValueError("Either url or db_path must be specified")
+
+    @classmethod
+    def sample_config(cls) -> Dict[str, Any]:
+        return {"url": "{env.CHROMADB_URL}"}