====== Caddy Port Conflict with Coolify Traefik ======

**Status:** Resolved\\
**Date:** 2026-05-27\\
**Affected service:** [[folkzone:services:caddy|Caddy]]

===== Symptom =====

After restarting the Caddy container, it failed to start with:

  Bind for 0.0.0.0:80 failed: port is already allocated

All services at //folk.zone// subdomains returned 502 Bad Gateway.

===== Root Cause =====

[[folkzone:services:coolify|Coolify]]'s built-in Traefik proxy was already bound to port 80 on the host. Both Caddy and Traefik were trying to bind the same host port.

===== Fix =====

Changed Caddy's host port mapping in ''docker-compose.yml'' from ''80:80'' to ''8082:80''. The container still listens on port 80 internally, so [[folkzone:services:cloudflared|Cloudflare Tunnel]] (which connects via the Docker network using ''caddy:80'') required no changes.

<code yaml>
# docker-compose.yml
caddy:
  ports:
    - "8082:80"  # was "80:80"
</code>

===== See Also =====
  * [[folkzone:troubleshooting:start|Homelab Troubleshooting Index]]

  * [[folkzone:services:caddy|Caddy]]
  * [[folkzone:services:coolify|Coolify]]
  * [[start|Return to wiki home]]