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Node-RED

This tutorial will guide you through setting up Node-RED using Docker Compose.

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Before proceeding, ensure you have the following installed on your system, these come preinstalled on the X20 Edge:

Step 1: Create a Docker Compose File​

Create a directory for your Node-RED setup and navigate into it:

mkdir node-red && cd node-red

Create a docker-compose.yml file:

services:
  node-red:
    image: nodered/node-red:latest
    container_name: node-red
    restart: unless-stopped
    ports:
      - "1880:1880"
    volumes:
      - node_red_data:/data
    environment:
      - TZ=Europe/Copenhagen

volumes:
  node_red_data:

Step 2: Start the Container​

Run the following command to start Node-RED:

docker-compose up -d

This will pull the latest Node-RED image, create the container, and start it in detached mode.

Step 3: Access Node-RED​

Once the container is running, open your browser and go to:

http://<X20-Edge-IP>:1880

Step 4: Persisting Data​

The volumes section in docker-compose.yml now defines a named volume node_red_data, ensuring that flows and configurations persist across container recreations.

Step 5: Stopping and Removing the Container​

To stop Node-RED, use:

docker-compose down

This will stop and remove the container while preserving the named volume node_red_data.

Conclusion​

You have successfully set up Node-RED using Docker Compose with a named volume. You can now start creating and deploying your flows!