Caddy as a container Directions here -> https://hub.docker.com/r/abiosoft/caddy/

in Docker compose:

1. Add this to compose

  app:
    image: keymetrics/pm2:8-alpine
		// whatever your node app is
  caddy: 
    image: abiosoft/caddy
    depends_on: 
      - app
    ports:
      - "80:80"
      - "443:443"
    volumes:
      - ./Caddyfile:/etc/Caddyfile
      - $HOME/.caddy:/root/.caddy

2. Add a Caddyfile in your project, use the container name of your app

slime.yu-mi.us {
        proxy / app:3000
}

3. Run docker-compose up -d
4. Your app is (hopefully) live :)