🐳 feat: RAG for Default Docker Compose Files + Docs Update (#2246)

* refactor(deploy-compose.yml): use long-syntax to avoid implicit folder creation of librechat.yaml

* refactor(docker-compose.override.yml.example): use long-syntax to avoid implicit folder creation of librechat.yaml

* chore: add simple health check for RAG_API_URL

* chore: improve axios error handling, adding `logAxiosError`

* chore: more informative message detailing RAG_API_URL path

* feat: add rag_api and vectordb to default compose file

* chore(rag.yml): update standalone rag compose file to use RAG_PORT

* chore: documentation updates

* docs: Update rag_api.md with images

* Update rag_api.md

* Update rag_api.md, assistants clarification

* add RAG API note to breaking changes

deploy-compose.yml

@@ -11,6 +11,7 @@ services:
       - 3080:3080
     depends_on:
       - mongodb
+      - rag_api
     restart: always
     extra_hosts:
     - "host.docker.internal:host-gateway"
@@ -21,11 +22,14 @@ services:
       - NODE_ENV=production
       - MONGO_URI=mongodb://mongodb:27017/LibreChat
       - MEILI_HOST=http://meilisearch:7700
+      - RAG_PORT=${RAG_PORT:-8000}
+      - RAG_API_URL=http://rag_api:${RAG_PORT:-8000}
     volumes:
+      - type: bind
+        source: ./librechat.yaml
+        target: /app/librechat.yaml
       - ./images:/app/client/public/images
-      - ./librechat.yaml:/app/librechat.yaml
       - ./logs:/app/api/logs
-      - ./uploads:/app/uploads
   client:
     build:
       context: .
@@ -61,3 +65,25 @@ services:
       - MEILI_NO_ANALYTICS=true
     volumes:
       - ./meili_data_v1.7:/meili_data
+  vectordb:
+    image: ankane/pgvector:latest
+    environment:
+      POSTGRES_DB: mydatabase
+      POSTGRES_USER: myuser
+      POSTGRES_PASSWORD: mypassword
+    restart: always
+    volumes:
+      - pgdata2:/var/lib/postgresql/data
+  rag_api:
+    image: ghcr.io/danny-avila/librechat-rag-api-dev-lite:latest
+    environment:
+      - DB_HOST=vectordb
+      - RAG_PORT=${RAG_PORT:-8000}
+    restart: always
+    depends_on:
+      - vectordb
+    env_file:
+      - .env
+
+volumes:
+  pgdata2: