Setting Up Coolify Deployment Behind an Existing Traefik Proxy

This guide explains how to configure your existing Traefik instance (running at 192.168.88.10) to proxy traffic to a Coolify-deployed jobs-app service running on 192.168.88.13:8001.

Prerequisites

Traefik is running and accessible at 192.168.88.10
Your external IP is configured to point to Traefik for domain resolution
The jobs-app is deployed via Coolify and running on 192.168.88.13:8001
You have access to Traefik's configuration files (assuming file-based provider)

Step 1: Verify Jobs-App Accessibility

Ensure the jobs-app is running and accessible:

curl http://192.168.88.13:8001

You should receive a response from the Flask application.

Step 2: Configure Traefik

Since Traefik is on a separate machine (192.168.88.10) and cannot directly watch the Docker containers on 192.168.88.13, you'll need to manually configure the routing in Traefik's configuration.

Option 1: Using Traefik's File Provider

Add the following configuration to your Traefik dynamic configuration file (e.g., dynamic.yml):

http:
  routers:
    jobs-app:
      rule: "Host(`your-domain.com`)" # Replace with your actual domain
      service: jobs-app
      entryPoints:
        - https # Assuming Traefik handles SSL termination
      middlewares:
        - https-redirect # Optional: redirect HTTP to HTTPS

  services:
    jobs-app:
      loadBalancer:
        servers:
          - url: "http://192.168.88.13:8001"

  middlewares:
    https-redirect:
      redirectScheme:
        scheme: https
        permanent: true

Option 2: Using Docker Labels (if Traefik can access the Docker socket)

If Traefik has access to the Docker socket on 192.168.88.13 (e.g., via network mount or API), the Docker labels in docker-compose.yml will automatically configure the routing. No additional configuration is needed.

Step 3: Reload Traefik Configuration

After updating the configuration, reload Traefik:

# If using Docker
docker-compose restart traefik

# Or if running directly
systemctl reload traefik

Step 4: Test the Setup

Ensure your DNS points your-domain.com to your external IP, which routes to Traefik.
Visit https://your-domain.com in your browser.
Traefik should proxy the request to http://192.168.88.13:8001 and serve the jobs-app.

Troubleshooting

Port not accessible: Ensure firewall rules allow traffic from 192.168.88.10 to 192.168.88.13:8001.
SSL issues: If Traefik is not terminating SSL, adjust the entryPoints and remove HTTPS redirects.
Routing not working: Check Traefik logs for errors in router/service configuration.
Domain mismatch: Verify the Host rule matches your actual domain.

Notes

The jobs-app runs on port 8000 internally in the container, exposed on host port 8001.
If you need to change the external port, update the ports mapping in docker-compose.yml and the Traefik service URL accordingly.
For production, consider adding authentication, rate limiting, or other middlewares in Traefik.

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