Rancher + Let's Encrypt

docker-compose.yml

# frontend
# domains, load balancer, https (with let's encrypt) and redirect to https

https-redirect:
  image: geldim/https-redirect

letsencrypt-nginx:
  tty: true
  image: nginx:alpine
  stdin_open: true
  volumes:
    - letsencrypt-verify:/usr/share/nginx/html/
  labels:
    io.rancher.sidekicks: rancher-lets-encrypt

rancher-lets-encrypt:
  tty: true
  image: tozny/rancher-lets-encrypt
  stdin_open: true
  environment:
    - DOMAINS=subdomain1.example.com,subdomain2.example.com,subdomain3.example.com
    - CERTBOT_WEBROOT=/var/www
    - CERTBOT_EMAIL=someemail@example.com
    - RENEW_BEFORE_DAYS=14
    - LOOP_TIME=300
    - STAGING=False
    - HOST_CHECK_PORT=80
    - HOST_CHECK_LOOP_TIME=10
  volumes:
    - letsencrypt-verify:/var/www/
    - letsencrypt-certs:/etc/letsencrypt/
  labels:
    io.rancher.container.create_agent: 'true'
    io.rancher.container.agent.role: environment

# add a
#  load-balancer
#
# > 80 > /.well-known > letsencrypt-nginx
# > 80 >              > https-redirect