version: '3.5'
services:
  certbot:
    container_name: certbot
    image: certbot/certbot
    restart: unless-stopped
    volumes:
      - /srv/certbot/etc:/etc/letsencrypt
      - /srv/certbot/www:/var/www/certbot
    entrypoint: >
      /bin/sh -c 'trap exit TERM;
      certbot certonly --noninteractive --register-unsafely-without-email --agree-tos --reinstall --cert-name {{domain_name}} -d {{domain_name}} --webroot --webroot-path=/var/www/certbot
      ; while :; do certbot renew --noninteractive --webroot --webroot-path=/var/www/certbot --cert-name {{domain_name}}
      ; sleep 12h & wait $${!}; done;'
    networks:
      - nginx

networks:
  nginx:
    external: true