warning

This tutorial is a community contribution and is not supported by the Open WebUI team. It serves only as a demonstration on how to customize Open WebUI for your specific use case. Want to contribute? Check out the contributing tutorial.

🔗 Redis Websocket Support

Overview

This documentation page outlines the steps required to integrate Redis with Open WebUI for websocket support. By following these steps, you will be able to enable websocket functionality in your Open WebUI instance, allowing for real-time communication and updates between clients and your application.

Prerequisites

• A valid Open WebUI instance (running version 1.0 or higher)
• A Redis container (we will use docker.io/valkey/valkey:8.0.1-alpine in this example, which is based on the latest Redis 7.x release)
• Docker Composer (version 2.0 or higher) installed on your system
• A Docker network for communication between Open WebUI and Redis
• Basic understanding of Docker, Redis, and Open WebUI

Setting up Redis

To set up Redis for websocket support, you will need to create a docker-compose.yml file with the following contents:

version: '3.9'
services:
  redis:
    image: docker.io/valkey/valkey:8.0.1-alpine
    container_name: redis-valkey
    volumes:
      - redis-data:/data
    command: "valkey-server --save 30 1"
    healthcheck:
      test: "[ $$(valkey-cli ping) = 'PONG' ]"
      start_period: 5s
      interval: 1s
      timeout: 3s
      retries: 5
    restart: unless-stopped
    cap_drop:
      - ALL
    cap_add:
      - SETGID
      - SETUID
      - DAC_OVERRIDE
    logging:
      driver: "json-file"
      options:
        max-size: "1m"
        max-file: "1"
    networks:
      - openwebui-network

volumes:
  redis-data:

networks:
  openwebui-network:
    external: true

Notes

The ports directive is not included in this configuration, as it is not necessary in most cases. The Redis service will still be accessible from within the Docker network by the Open WebUI service. However, if you need to access the Redis instance from outside the Docker network (e.g., for debugging or monitoring purposes), you can add the ports directive to expose the Redis port (e.g., 6379:6379).

The above configuration sets up a Redis container named redis-valkey and mounts a volume for data persistence. The healthcheck directive ensures that the container is restarted if it fails to respond to the ping command. The --save 30 1 command option saves the Redis database to disk every 30 minutes if at least 1 key has changed.

To create a Docker network for communication between Open WebUI and Redis, run the following command:

docker network create openwebui-network

Configuring Open WebUI

To enable websocket support in Open WebUI, you will need to set the following environment variables for your Open WebUI instance:

ENABLE_WEBSOCKET_SUPPORT="true"
WEBSOCKET_MANAGER="redis"
WEBSOCKET_REDIS_URL="redis://redis:6379/1"

These environment variables enable websocket support, specify Redis as the websocket manager, and define the Redis URL. Make sure to replace the WEBSOCKET_REDIS_URL value with the actual IP address of your Redis instance.

When running Open WebUI using Docker, you need to connect it to the same Docker network:

docker run -d \
  --name open-webui \
  --network openwebui-network \
  -v open-webui:/app/backend/data \
  -e ENABLE_WEBSOCKET_SUPPORT="true" \
  -e WEBSOCKET_MANAGER="redis" \
  -e WEBSOCKET_REDIS_URL="redis://127.0.0.1:6379/1" \
  ghcr.io/open-webui/open-webui:main

Replace 127.0.0.1 with the actual IP address of your Redis container in the Docker network.

Verification

If you have properly set up Redis and configured Open WebUI, you should see the following log message when starting your Open WebUI instance:

DEBUG:open_webui.socket.main:Using Redis to manage websockets.

This confirms that Open WebUI is using Redis for websocket management. You can also use the docker exec command to verify that the Redis instance is running and accepting connections:

docker exec -it redis-valkey redis-cli -p 6379 ping

This command should output PONG if the Redis instance is running correctly. If this command fails, you could try this command instead:

docker exec -it redis-valkey valkey-cli -p 6379 ping

Troubleshooting

If you encounter issues with Redis or websocket support in Open WebUI, you can refer to the following resources for troubleshooting:

• Redis Documentation
• Docker Compose Documentation
• sysctl Documentation

By following these steps and troubleshooting tips, you should be able to set up Redis with Open WebUI for websocket support and enable real-time communication and updates between clients and your application.