yum install epel-release
yum install docker
service docker start

curl -L http://github.com/docker/compose/releases/download/1.17.0/docker-compose-Linux-x86_64 /usr/local/bin/docker-compose
chmod +x /usr/local/bin/docker-compose

[root@VM_0_3_redhat nextcloud]# docker network create nextcloud
b01cd2af784023bb9deb416f6f147b883ceac3d4094b0573bcbe4fe29eb8ef7e

version: '2'
services:
 db:
  container_name: cloud_db
  image: mysql
  volumes:
   - "./data/cloud/mysql:/var/lib/mysql"
  restart: always
  environment:
   MYSQL_ROOT_PASSWORD: root
   MYSQL_DATABASE: nextcloud
 app:
  container_name: cloud_app
  depends_on:
   - db
  image: nextcloud
  volumes:
   - ./data/cloud/config:/var/www/html/config
   - ./data/cloud/data:/var/www/html/data
   - ./data/cloud/apps:/var/www/html/apps
  links:
   - db
  ports:
   - "2333:80"
  restart: always
 cron:
  container_name: cloud_cron
  image: nextcloud
  links:
   - db
  volumes_from:
   - app
  user: www-data
  entrypoint: |
   bash -c 'bash -s <<EOF
   trap "break;exit" SIGHUP SIGINT SIGTERM
   while /bin/true; do
    /usr/local/bin/php /var/www/html/cron.php
    sleep 900
   done
   EOF'
  restart: always
 web:
  container_name: cloud_web
  image: abiosoft/caddy
  volumes:
   - ./Caddyfile:/etc/Caddyfile
   - ~/.caddy:/root/.caddy
  ports:
   - 80:80
   - 443:443
  restart: always
networks:
 default:
  external:
   name: nextcloud