Docker Compose and Caddy Docker Proxy Setup

Quick example of how to setup a docker compose file with a caddy docker proxy, this is great for a fast setup and domain mapping.

First setup a Docker network for the proxy to use, this will be used for all the containers that will be proxied to the web. docker network create caddy.

docker-compose.yml

name: apps
services:
  caddy:
    image: lucaslorentz/caddy-docker-proxy:ci-alpine
    ports:
      - 80:80
      - 443:443
    environment:
      - CADDY_INGRESS_NETWORKS=caddy
    networks:
      - caddy
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
      - caddy_data:/data
    restart: unless-stopped

  whoami:
    image: jwilder/whoami
    restart: unless-stopped
    networks:
      - caddy
    labels:
      caddy: whoami.chrisbrocklesby.com
      caddy.reverse_proxy: "{{upstreams 8000}}"
    # env_file: production.env // <- Optional

volumes:
  caddy_data: {}

networks:
  caddy:
    external: true

Run docker compose up -d, and then go to whoami.mydomainname.com making sure the domain points to the server via the DNS.