Nginx + phpMyAdmin + phpRedisAdmin (php-fpm) via Docker - Alpine

Run Nginx, phpMyAdmin and phpRedisAdmin (php-fpm) - Alpine via docker-compose Tested at AWS EC2 and RDS - Amazon Linux 2

Docker Reference: https://github.com/phpmyadmin/docker

Docker Reference: https://github.com/erikdubbelboer/phpRedisAdmin

Description

3 Docker containers: phpMyAdmin and phpRedisAdmin will share the same nginx container.

phpMyAdmin <-> Nginx <-> phpRedisAdmin

phpMyAdmin and phpRedisAdmin containers are separated. They are using different network interfaces to talk to nginx. All 3 containers are using the shared html document root, /var/www/html/. phpMyAdmin is under /var/www/html/phpMyAdmin/, and phpRedisAdmin is under /var/www/html/phpRedisAdmin/. The php-fpm port for phpMyAdmin is changed to 9001 while phpRedisAdmin is using the default port 9000. It is not necessary to use different ports for 2 isolated php-fpm containers. Reference: docker-library/php#479

This solution is to run 2 isolate php-fpm containers in different directories, and there is another solution for running isolated containers in 2 different server blocks. Reference: https://dev.to/johnmccuk/isolating-php-with-docker-containers-4epn

Create environment variables at .env file at working directory

• NGINX_VERSION - Nginx (alpine) docker image tag, e.g., mainline-alpine
• NGINX_PORT - Default port 80
• DOCKER_NGINX_PORT - Default port 8080
• PHP_FPM_VERSION - PHP-FPM docker image tag, e.g., 7.3-fpm-alpine
• HTML_VOLUME - Full path of the html root for nginx. Default value is /var/www/html
• PMA_HOSTS - Define comma separated list of address/host names of the MySQL servers
• PMA_ABSOLUTE_URI - Define user-facing URI. Our docker-entrypoint.sh will automatically create the phpMyAdmin directory under /var/www/html/. Please change that accordingly if you want to use other path.

Example:

NGINX_VERSION=mainline-alpine
NGINX_PORT=80
DOCKER_NGINX_PORT=8080
PHP_FPM_VERSION=7.3-fpm-alpine
HTML_VOLUME=/var/www/html
PMA_HOSTS=YOUR_DB_HOSTNAME(S)
PMA_ABSOLUTE_URI=YOUR_HOSTNAME/phpMyAdmin

Create new user and group

The new user and group will be running the nginx and php-fpm instances. UID and GID for app:app are 3000.

Example at EC2 - Amazon Linux 2

sudo groupadd -g 3000 app
sudo useradd -s /sbin/nologin -g 3000 -u 3000 app

Configure nginx.conf and php-fpm configuration files

nginx/nginx.conf

# php-fpm configuration for phpMyAdmin
phpmyadmin/php-fpm.conf
phpmyadmin/php.ini
phpmyadmin/www.conf

# php-fpm configuration for phpRedisAdmin
phpredisadmin/php-fpm.conf
phpredisadmin/php.ini
phpredisadmin/www.conf

Create config.inc.php under phpredisadmin/ - phpRedisAdmin configuration file

touch phpredisadmin/config.inc.php

Sample file can be obtained from https://github.com/erikdubbelboer/phpRedisAdmin/blob/master/includes/config.sample.inc.php

Add the executable permission to docker-entrypoint.sh to fix the permission denied issue

chmod +x phpmyadmin/docker-entrypoint.sh
chmod +x phpredisadmin/docker-entrypoint.sh

Reference: composer/docker#7

Make sure phpMyAdmin and phpRedisAdmin directories do not exist under /var/www/html/

Our phpmyadmin/docker-entrypoint.sh and phpredisadmin/docker-entrypoint.sh will automatically create phpMyAdmin and phpRedisAdmin directories under /var/www/html/. It may cause unexpected issue if phpMyAdmin or phpRedisAdmin exists.

Build and run with docker-compose

docker-compose up -d

Rebuild the docker image after nginx or php-fpm configuration file is changed

docker-compose down
docker-compose up --build -d

URL to access phpMyAdmin and phpRedisAdmin

http://YOUR_HOSTNAME/phpMyAdmin
http://YOUR_HOSTNAME/phpRedisAdmin