feat: support better qdrant collection isolation

The prefix string for qdrant collection is now
configurable,  which means the same qdrant cluster
can be used to host more open webui instances and
to be able to separate the collections between the
different owui instances.

backend/open_webui/config.py

@@ -1799,6 +1799,7 @@ QDRANT_GRPC_PORT = int(os.environ.get("QDRANT_GRPC_PORT", "6334"))
 ENABLE_QDRANT_MULTITENANCY_MODE = (
     os.environ.get("ENABLE_QDRANT_MULTITENANCY_MODE", "false").lower() == "true"
 )
+QDRANT_COLLECTION_PREFIX = os.environ.get("QDRANT_COLLECTION_PREFIX", "open-webui")
 
 # OpenSearch
 OPENSEARCH_URI = os.environ.get("OPENSEARCH_URI", "https://localhost:9200")

backend/open_webui/retrieval/vector/dbs/qdrant.py

@@ -18,6 +18,7 @@ from open_webui.config import (
     QDRANT_ON_DISK,
     QDRANT_GRPC_PORT,
     QDRANT_PREFER_GRPC,
+    QDRANT_COLLECTION_PREFIX,
 )
 from open_webui.env import SRC_LOG_LEVELS
 
@@ -29,7 +30,7 @@ log.setLevel(SRC_LOG_LEVELS["RAG"])
 
 class QdrantClient(VectorDBBase):
     def __init__(self):
-        self.collection_prefix = "open-webui"
+        self.collection_prefix = QDRANT_COLLECTION_PREFIX
         self.QDRANT_URI = QDRANT_URI
         self.QDRANT_API_KEY = QDRANT_API_KEY
         self.QDRANT_ON_DISK = QDRANT_ON_DISK

backend/open_webui/retrieval/vector/dbs/qdrant_multitenancy.py

@@ -9,6 +9,7 @@ from open_webui.config import (
     QDRANT_ON_DISK,
     QDRANT_PREFER_GRPC,
     QDRANT_URI,
+    QDRANT_COLLECTION_PREFIX,
 )
 from open_webui.env import SRC_LOG_LEVELS
 from open_webui.retrieval.vector.main import (
@@ -30,7 +31,7 @@ log.setLevel(SRC_LOG_LEVELS["RAG"])
 
 class QdrantClient(VectorDBBase):
     def __init__(self):
-        self.collection_prefix = "open-webui"
+        self.collection_prefix = QDRANT_COLLECTION_PREFIX
         self.QDRANT_URI = QDRANT_URI
         self.QDRANT_API_KEY = QDRANT_API_KEY
         self.QDRANT_ON_DISK = QDRANT_ON_DISK