feat:Add host volume env variables for postgres, redis and weaviate (#9761)

docker/docker-compose.middleware.yaml

@@ -16,7 +16,7 @@ services:
                -c 'maintenance_work_mem=${POSTGRES_MAINTENANCE_WORK_MEM:-64MB}'
                -c 'effective_cache_size=${POSTGRES_EFFECTIVE_CACHE_SIZE:-4096MB}'
     volumes:
-      - ./volumes/db/data:/var/lib/postgresql/data
+      - ${PGDATA_HOST_VOLUME:-./volumes/db/data}:/var/lib/postgresql/data
     ports:
       - "${EXPOSE_POSTGRES_PORT:-5432}:5432"
     healthcheck:
@@ -31,7 +31,7 @@ services:
     restart: always
     volumes:
       # Mount the redis data directory to the container.
-      - ./volumes/redis/data:/data
+      - ${REDIS_HOST_VOLUME:-./volumes/redis/data}:/data
     # Set the redis password when startup redis server.
     command: redis-server --requirepass difyai123456
     ports:
@@ -94,7 +94,7 @@ services:
     restart: always
     volumes:
       # Mount the Weaviate data directory to the container.
-      - ./volumes/weaviate:/var/lib/weaviate
+      - ${WEAVIATE_HOST_VOLUME:-./volumes/weaviate}:/var/lib/weaviate
     env_file:
       - ./middleware.env
     environment: