How to use docker swarm with docker machine to deploy your Rails application.

build.sh

docker-compose -f docker-compose.production.yml build
docker push registry.cn-hongkong.aliyuncs.com/xxxx/xxxxx:latest
VERSION=$(date '+%Y%m%d%H%M%S')
docker tag registry.cn-hongkong.aliyuncs.com/xxxx/xxxxx:latest registry.cn-hongkong.aliyuncs.com/xxxx/xxxxx:$VERSION
docker push registry.cn-hongkong.aliyuncs.com/xxxx/xxxxx:$VERSION

Deploy-Rails-application-with-docker-swarm.md

docker swarm init

# 创建管理环境
docker-machine create \
  --driver generic \
  --generic-ip-address=IP \
  --generic-ssh-key ~/.ssh/id_rsa \
  --swarm --swarm-master \
  taxigo

# 进入 docker 远程环境
# docker-machine env xxx
eval $(docker-machine env --swarm xxx)

docker stack deploy --with-registry-auth -c docker-compose.nginx-proxy.yml --orchestrator swarm nginx
docker stack deploy --with-registry-auth -c docker-compose.production.yml --orchestrator swarm app

docker service ls

# 退出 docker 远程环境
eval $(docker-machine env -u)

docker-compose.nginx-proxy.yml

version: '3.7'
services:
  nginx:
    image: nginx
    labels:
      com.github.jrcs.letsencrypt_nginx_proxy_companion.nginx_proxy: "true"
      com.taxigo.nginx_proxy: "true"
    ports:
      - "80:80"
      - "443:443"
    volumes:
      - /data/nginx/certs:/etc/nginx/certs
      - /data/nginx/conf.d:/etc/nginx/conf.d
      - /data/nginx/vhost.d:/etc/nginx/vhost.d
      - /data/nginx/html:/usr/share/nginx/html
      - /data/nginx/html:/var/www/public

  nginx-gen:
    image: helder/docker-gen
    command: -notify "docker-label-sighup com.taxigo.nginx_proxy" -watch -wait 5s:30s /etc/docker-gen/templates/nginx.tmpl /etc/nginx/conf.d/default.conf
    labels:
      com.github.jrcs.letsencrypt_nginx_proxy_companion.docker_gen: "true"
    volumes:
      - /var/run/docker.sock:/tmp/docker.sock:ro
      - /data/nginx/nginx.tmpl:/etc/docker-gen/templates/nginx.tmpl:ro
      - /data/nginx/certs:/etc/nginx/certs
      - /data/nginx/conf.d:/etc/nginx/conf.d
      - /data/nginx/vhost.d:/etc/nginx/vhost.d
      - /data/nginx/html:/usr/share/nginx/html

  nginx-letsencrypt:
    image: jrcs/letsencrypt-nginx-proxy-companion
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock:ro
      - /data/nginx/certs:/etc/nginx/certs
      - /data/nginx/conf.d:/etc/nginx/conf.d
      - /data/nginx/vhost.d:/etc/nginx/vhost.d
      - /data/nginx/html:/usr/share/nginx/html

docker-compose.production.yml

version: '3.7'
services:
  db:
    image: postgres:11-alpine
    environment:
      - POSTGRES_PASSWORD=XXXXXXXX
    volumes:
      - /data/taxigo/pg/data:/var/lib/postgresql/data
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U postgres"]
      interval: 30s
      timeout: 30s
      retries: 3

  redis:
    image: registry.cn-hongkong.aliyuncs.com/chunlea/redis-cell
    volumes:
      - /data/taxigo/redis:/data

  backup:
    environment:
      - POSTGRES_DATABASE=taxi_go_backend_production
      - POSTGRES_HOST=db
      - POSTGRES_PASSWORD=XXXXXXXXX
      - POSTGRES_USER=postgres
      - S3_ACCESS_KEY_ID=XXXXXXXXXXX
      - S3_SECRET_ACCESS_KEY=XXXXXXXXXXX
      - S3_BUCKET=XXXXXX
      - S3_PREFIX=XXXXXX
      - S3_REGION=us-east-1
      - SCHEDULE=@daily
    image: 'schickling/postgres-backup-s3:latest'
    depends_on:
      - db
    restart: always

  app: &app_base
    build:
      context: .
      args:
        - ADDITIONAL_PACKAGES=nano nodejs-current
        - FOLDERS_TO_REMOVE=spec node_modules app/assets vendor/assets lib/assets tmp/cache
        - BUNDLE_WITHOUT=development:test
        - EXECJS_RUNTIME=Node
        - RAILS_ENV=production
        - NODE_ENV=production
    image: registry.cn-hongkong.aliyuncs.com/xxxxx/xxxxxx:latest
    environment:
      - EDITOR=nano
      - DATABASE_PASSWORD=XXXXXXXX
      - RAILS_ENV=production
      - NODE_ENV=production
      - RAILS_MAX_THREADS=10
      - VIRTUAL_HOST=xxxx.com
      - LETSENCRYPT_HOST=xxxx.com
      - LETSENCRYPT_EMAIL=xxxxx@xxxx.com
    depends_on:
      - db
      - redis
    secrets:
      - source: rails_master_key
        target: ./config/master.key
    networks:
      - nginx_default
      - default
    healthcheck:
      test: ["CMD-SHELL", "nc -z 127.0.0.1 3000 || exit 1"]
      interval: 5m

  worker:
    <<: *app_base
    command: bundle exec sidekiq
    ports: []
    environment:
      - EDITOR=nano
      - DATABASE_PASSWORD=xxxxxxxx
      - RAILS_ENV=production
      - NODE_ENV=production
      - RAILS_MAX_THREADS=10
    depends_on:
      - app

secrets:
  rails_master_key:
    external: true

networks:
  nginx_default:
    external: true

Thanks to all those great work.
https://github.com/ledermann/docker-rails
https://github.com/jwilder/nginx-proxy
https://github.com/jwilder/docker-gen
https://github.com/JrCs/docker-letsencrypt-nginx-proxy-companion
https://github.com/helderco/docker-gen

And @helderco SAVE me! THANK YOU!