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1- Docker	2- Firewall	3- Portainer	4- Drupal	5- Joomla
6- Wordpress	7- Xwiki	8- Mediawiki	9- Environment
Casaos	Zimaos

9. Environment.

9.1 Create a Yaml script for multiple instances.

Example Drupal instance 1.

You need them all in the same directory.

• .env file.
• instance_drupal.yaml file.

Contents of the .env file.
vi .env

My_instance=1  

Edit the instance_drupal_1.yaml. Chapter 4.3 Install Drupal with a yaml script

Replace _1 by _${My_instance}.
Then replace the port 8081 by 808${My_instance}
and 33771 by 3377${My_instance}.

Contents of the instance_drupal.yaml file.

vi instance_drupal.yaml

# 2025, January  
# replace number  by 1 or 2 or ... until 9  
# example n = 1  
# port published wb = 8081  
# port published db = 33771  
# ip = 192.168.60.55  
# you must create network net_dpl_1    from portainer before installing drupal.  
# you must create volume vol_dpl_wb_1  from portainer before installing drupal.  
# you must create volume vol_dpl_db_1  from portainer before installing drupal.  
#  
# Be careful with the tab, the indentation is 4 characters.  
#  
  
name: drupal_${My_instance}  ## change  n of drupal_n  
services:  
    drupal:  
        cpu_shares: 90  
        command: []  
        container_name: cnt_dpl_wb_${My_instance}  ## change   n  of cnt_dpl_wb_n  
        depends_on:  
            drupaldb:  
                condition: service_started  
                restart: true  
                required: true  
        deploy:  
            resources:  
                limits:  
                    memory: 2048M  
        environment:  
            - DRUPAL_DB_HOST=cnt_dpl_db_${My_instance}  ## change  n of cnt_dpl_db_n  
            - DRUPAL_DB_PASSWORD=641fqAB4d  ## Change password if you want  
        hostname: cnt_dpl_wb_${My_instance}  ## change  n of cnt_dpl_wb_n  
        image: drupal:latest  
        links:  
            - drupaldb:mariadb  
        ports:  
            - target: 80  
              published: '808${My_instance}'  ## change n of published : 808n  
              protocol: tcp  
        restart: always  
        volumes:  
            - /var/lib/docker/volumes/vol_dpl_wb_${My_instance}/_data:/var/www/html #  create volume from portainer and change  n of vol_dpl_wb_n  
        user: 2001:2001  ## www-dock (uid:gid)  
        devices: []  
        cap_add: []  
        network_mode: net_dpl_${My_instance}  # create with portainer, change n of net_dpl_n  
        privileged: false  
    drupaldb:  
        cpu_shares: 90  
        command: []  
        container_name: cnt_dpl_db_${My_instance}  ## change   n  of cnt_dpl_db_n  
        deploy:  
            resources:  
                limits:  
                    memory: 2048M  
        environment:  
            - MYSQL_ROOT_PASSWORD=641fqAB4d # it is the same password DRUPAL_DB_PASSWORD  
        hostname: cnt_dpl_db_${My_instance} ## change  n of cnt_dpl_db_n  
        image: mariadb:latest  
        ports:  
            - target: 3306  
              published: '3377${My_instance}'  ## change  n of  3377n  
              protocol: tcp  
        restart: always  
        volumes:  
            - /var/lib/docker/volumes/vol_dpl_db_${My_instance}/_data:/var/lib/mysql   ## create volume from portainer and change  n of vol_dpl_db_n  
        user: 2002:2002  ## mysql-dock (uid:gid)  
        devices: []  
        cap_add: []  
        network_mode: net_dpl_${My_instance} # create network  from portainer and change  n of net_dpl_1  
        privileged: false  

Installation.
docker compose -f /home/teacher/drupal/instance_drupal.yaml up
Crtl+C to stop.

Information.
If you want to change your drupal instance in 2,
Edit .env file.
Replace 1 by 2

The .env file for Wordpress is :

My_instance=1  
My_network=172.18.0.1