105Joomla - amagerard/Docker GitHub Wiki

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RedHat/Docker.

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

5. Joomla.

Joomla is a Content Management System.
It is possible to create, manage and easily modify a website.

This procedure is based on this example.

Docker server ip :192.168.60.55/24
Your username: teacher
Your home directory:/home/teacher

5.1 Create Network and Volumes with Portainer.

Open Portainer for create network and volumes.
http://192.168.60.55:9000

Click on Environments Local.

5.1.1 Each Joomla instance has its container.

  • cnt_jla_wb_number.
  • cnt_jla_db_number.
    Containers will be created from the docker compose command line.

5.1.2 Each Joomla instance has its network.

  • net_jla_number.
    Create net_jla_1.
Select Networks.  
Add network.  
Name : net_jla_1  
Add Driver options:  
Name : com.docker.network.bridge.name   value : net_jla_1  
Create the network.

Name: com.docker.network.bridge.name value : net_jla_1 is not specified, docker will give it a name as br-XXXX.

5.1.3 Each Joomla instance has its volume.

  • vol_jla_wb_number.
  • vol_jla_db_number.
    Create these volumes.
Select Volumes.  
Add volume.  
Name: vol_jla_wb_1  
Create the volume.  
Add the volume.  
Name: vol_jla_db_1  
Create the volume.

5.1.4 Information.

Command lines to create the netwok and volumes without portainer.
docker network create --opt com.docker.network.bridge.name=net_jla_1 net_jla_1
docker volume create vol_jla_wb_1
docker volume create vol_jla_db_1

5.2 Give permissions to www-dock and mysql-dock for volumes.

chown -R www-dock:www-dock /var/lib/docker/volumes/vol_jla_wb_1
chown -R mysql-dock:mysql-dock /var/lib/docker/volumes/vol_jla_db_1

5.3 Install Drupal with a yaml script.

Logging with your username.
mkdir /home/teacher/joomla
vi /home/teacher/joomla/instance_joomla_1.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  
# your username is teacher  
# you must create network net_jla_1    from portainer before installing joomla.  
# you must create volume vol_jla_wb_1  from portainer before installing joomla.  
# you must create volume vol_jla_db_1  from portainer before installing joomla.  
# you must create php.ini file  under /home/teacher/docker  before installing joomla  
#  
# vi /home/teacher/docker/php.ini  
# memory_limit = 500M  
# upload_max_filesize = 500M  
# post_max_size = 500M  
# max_execution_time = 30  
#  
# you can modify  /home/teacher/docker/php.ini but not delete it.  
#  
# Be careful with the tab, the indentation is 4 characters.  
#  
name: joomla_1  ## change  n of joomla_n  
services:  
    joomla:  
        cpu_shares: 90  
        command: []  
        container_name: cnt_jla_wb_1  ## change  n  of cnt_jla_wb_n  
        depends_on:  
            joomladb:  
                condition: service_started  
                restart: true  
                required: true  
        deploy:  
            resources:  
                limits:  
                    memory: 2048M  
        environment:  
           - JOOMLA_DB_HOST=cnt_jla_db_1  ## change n to cnt_jla_db_n  
           - JOOMLA_DB_PASSWORD=password # change password as you want  
        hostname: cnt_jla_wb_1  ## change n to cnt_jla_wb_n  
        image: joomla:latest  
        links:  
            - joomladb:mariadb  
        ports:  
            - target: 80  
              published: '8081'  ## change  n of 808n  
              protocol: tcp  
        restart: always  
        volumes:  
            - /var/lib/docker/volumes/vol_jla_wb_1/_data:/var/www/html # create volume from portainer and change  n of vol_jla_wb_n  
            - /home/teacher/docker/files/php.ini:/usr/local/etc/php/php.ini # create php.ini file  before  on /home/<username>/joomla  
        user: 2001:2001 ## www-dock gid ., Put '#' before the line for casaos or zimaos  
        devices: []  
        cap_add: []  
        network_mode: net_jla_1 # create network  from portainer and change  n of net_jla_1  
        privileged: false  
    joomladb:  
        cpu_shares: 90  
        command: []  
        container_name: cnt_jla_db_1  ## change  n  of cnt_jla_db_n  
        deploy:  
            resources:  
                limits:  
                    memory: 2048M  
        environment:  
            - MYSQL_ROOT_PASSWORD=password  # it is the same  password JOOMLA_DB_PASSWORD  
        hostname: cnt_jla_db_1 ## change  n of cnt_jla_db_n  
        image: mariadb:latest  
        ports:  
            - target: 3306  
              published: '33771'  ## change  n to  3377n  
              protocol: tcp  
        restart: always  
        volumes:  
            - /var/lib/docker/volumes/vol_jla_db_1/_data:/var/lib/mysql  ## create volume from portainer and change  n of vol_jla_db_n  
        user: 2002:2002  ## mysql-dock gid ., Put '#' before the line for casaos or zimaos  
        devices: []  
        cap_add: []  
        network_mode: net_jla_1  # create network  from portainer and change  n of net_jla_1  
        privileged: false

Certain parameters like Memory Limit, Upload_max_filesize, ... for joomla are defined in php.ini.

mkdir -p /home/teacher/docker/files
vi /home/teacher/docker/files/php.ini

memory_limit = 500M  
upload_max_filesize = 500M  
post_max_size = 500M  
max_execution_time = 30

you can modify /home/teacher/docker/files/php.ini but not delete it.

Installation.
docker compose -f /home/teacher/joomla/instance_joomla_1.yaml up
Crtl+C to stop.

Information.
If you want to change your joomla instance in 2,
edit this file and replace _1 by _2.
Then replace the port 8081 by 8082
and 33771 by 33772.

5.4 Attach volumes with containers.

On portainer, by default the volumes are marked Unused.

Open Portainer.
http://192.168.60.55:9000

Click on Environments Local.

Select Container cnt_jla_wb_1.
Click on cnt_jla_wb_1.
Click Duplicate/Edit.
Advanced container settings.
Click on Volumes.
Volumes mapping.
Choose container /var/www/html.
Click on Volume.
Select a Volume.
Choose vol_jla_wb_1 - local.
Click on Deploy the container.
Click on Replace.

Select Container cnt_jla_db_1.
Click on cnt_jla_db_1.
Click Duplicate/Edit.
Advanced container settings.
Click on Volumes.
Volumes mapping.
Choose container /var/lib/mysql.
Click on Volume.
Select a Volume.
Choose vol_jla_db_1 - local.
Click on Deploy the container.
Click on Replace.

5.5 Open Joomla.

5.5.1 Firewall.

Find your interface for network net_jla_1.
The gateway is displayed in Portainer Networks.
Example:
The net_jla_1 gateway is 172.18.0.1/16.
Network interface is net_jla_1.

ifconfig

net_jla_1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500  
        inet 172.18.0.1  netmask 255.255.0.0  broadcast 172.18.255.255  
        ether 02:42:6a:71:3d:51  txqueuelen 0  (Ethernet)  
        RX packets 10742  bytes 23229052 (22.1 MiB)  
        RX errors 0  dropped 0  overruns 0  frame 0  
        TX packets 12571  bytes 5854522 (5.5 MiB)  
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

Add rules on firewall.
iptables -t nat -A POSTROUTING ! -o net_jla_1 -s 172.18.0.0/16 -j MASQUERADE
ufw route allow in on net_jla_1 out on eth0 to any from any
ufw allow in from any to any port 8081

The postrouting iptable rule disappears after restarting the server.
The solution is to add the rule in crontab.
Add postrouting iptable in /opt/docker/postrouting_sh.

vi /opt/docker/postrouting_sh.

iptables -t nat -A POSTROUTING ! -o net_jla_1  -s 172.18.0.0/16 -j MASQUERADE

Don't forget to delete line if you no longer use this iptable rule.

Information:
To delete an iptable postrouting rule without reboot.
Postrouting line number.
iptables --list -v --line-numbers -t nat
Remove rule ( 1 is the line number).
iptables -t nat -D POSTROUTING 1

5.5.2 First access Joomla.

http://192.168.60.55:8081

Select language : English
Setup Site Name : mybeautifulweb
Setup Login Data.
Enter the real name of your Super User: super master
set the username for your Super User account : supermaster
set the password for your Super User account (12 characters): as you want
Enter the email address of the website Super User: as you want
Setup data Base Connection.
Select the data base type: MySQLi
Enter the hostname, usually "localhost" or a name provided by your host: cnt_jla_db_1
Enter the database username you created or a username provided by your host : root
Enter the database password you created or a password provided by your host : password
Enter the database name: cnt_jla_db_1
Install Joomla.
Open administrator.
Login : supermaster
Password: your password

Joomla is ready.

To return to the administrator page.
http://192.168.60.55:8081/administrator

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