Docker (Wordpress (5 sites) + nginx+sql )

Five separate containers, just give them unique names.

Two popular ways to deploy docker containers is by using Portainer Stacks, and by using the command line with docker-compose.

• Here is a [How-To] for Portainer/Stacks
• This [How-To] is a good example of using docker-compose in the command line.

I don't know if you have gotten this far, but below is a docker-compose file that has worked for me on an amd64 machine. Just note that both container names in each compose file need to be unique for each site.

• site 1: wordpress01, wordpressdb01
• site 2: wordpress02, wordpressdb02
• site 3: wordpress03, wordpressdb03
• etc.

version: '3.1'

services:

  wordpress:
    image: wordpress
    container_name: wordpress01 # To install multiple wp sites each needs unique name.
    ports:
      - 8080:80 # If 8080 is all ready in use it can be changed to an unused port.
    environment:
      WORDPRESS_DB_HOST: db
      WORDPRESS_DB_USER: your-user
      WORDPRESS_DB_PASSWORD: your-password
      WORDPRESS_DB_NAME: db01 #I think this name and MYSQL_DATABASE name need to be the same.
    volumes:
      - /sym/disk1/appdata/wordpress:/var/www/html # /sym/disk1/... is a symlink.
    restart: unless-stopped

  db:
    image: mysql:5.7
    container_name: wordpressdb01 # Unique container name for each wp site here too.
    environment:
      MYSQL_DATABASE: db01 # Same as above.
      MYSQL_USER: your-user
      MYSQL_PASSWORD: your-password
      MYSQL_RANDOM_ROOT_PASSWORD: '1'
    volumes:
      - /sym/disk1/appdata/wordpresdb:/var/lib/mysql # Same as above.
    restart: unless-stopped

volumes:
  wordpress:
  db:

networks:
  default:
    external: true
    name: pwh # My custom bridge network used to allow Swag implementation of reverse proxy.

OMV6 is still using nginx. So you can use it for other things as well. BUT you have to be careful to not break nginx for OMV. That is why it is suggested to use docker for such things as they are isolated from the host installation.

I guess nothing is forbidden. It’s just that it will be an uphill slog without docker. I don’t know why so many shy away from docker. It’s as easy as falling off a log, once you get the hang of it.

Zitat von romanram

Where is the mistake?

Everything you said in that post. docker consumes almost no resources compared to running the exact same services on the host. And whether you install a service/app on the host or docker, it needs to be updated and monitored.