docker-gen

jwilder/docker-gen with:

• embedded nginx.tmpl file
• support for nginx_* environment variables
• docker socket by default located in /var/run/docker.sock, same as in letsencrypt companion

Environment variables starting with nginx_* are added as nginx config entries, for example: nginx_client_max_body_size=30M. Variables of docker-gen container are added to global config, and variables on others containers are added to the respective vhosts. Currently only lower case variables are supported (until jwilder/docker-gen#306 is merged).

This fork automatically pulls and rebuilds Docker Hub image on any changes in the upstream repo

Example docker file:

version: '2.1'

services:
  nginx:
    image: nginx:alpine
    container_name: nginx
    restart: always
    ports:
      - 80:80
      - 443:443
    volumes:
      - conf:/etc/nginx/conf.d
      - vhost:/etc/nginx/vhost.d
      - html:/usr/share/nginx/html
      - certs:/etc/nginx/certs

  dockergen:
    image: poma/docker-gen
    container_name: dockergen
    restart: always
    command: -notify-sighup nginx -watch /etc/docker-gen/templates/nginx.tmpl /etc/nginx/conf.d/default.conf
    environment:
      nginx_client_max_body_size: 42M
    volumes_from:
      - nginx
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock:ro

  letsencrypt:
    image: jrcs/letsencrypt-nginx-proxy-companion
    container_name: letsencrypt
    restart: always
    environment:
      NGINX_DOCKER_GEN_CONTAINER: dockergen
    volumes_from:
      - nginx
      - dockergen

  app:
    image: app
    environment:
      VIRTUAL_HOST: example.com
      LETSENCRYPT_HOST: example.com
      nginx_client_max_body_size: 1337M

volumes:
  conf:
  vhost:
  html:
  certs: