Docker PHP-FPM 8.1 & Nginx 1.22 on Alpine Linux
Example PHP-FPM 8.1 & Nginx 1.22 container image for Docker, built on Alpine Linux.
- Built on the lightweight and secure Alpine Linux distribution
- Multi-platform, supporting AMD4, ARMv6, ARMv7, ARM64
- Very small Docker image size (+/-40MB)
- Uses PHP 8.1 for better performance, lower CPU usage & memory footprint
- Optimized for 100 concurrent users
- Optimized to only use resources when there's traffic (by using PHP-FPM's
- The services Nginx, PHP-FPM and supervisord run under a non-privileged user (nobody) to make it more secure
- The logs of all the services are redirected to the output of the Docker container (visible with
docker logs -f <container name>)
- Follows the KISS principle (Keep It Simple, Stupid) to make it easy to understand and adjust the image to your needs
Goal of this project
The goal of this container image is to provide an example for running Nginx and PHP-FPM in a container which follows the best practices and is easy to understand and modify to your needs.
Start the Docker container:
docker run -p 80:8080 trafex/php-nginx
Or mount your own code to be served by PHP-FPM & Nginx
docker run -p 80:8080 -v ~/my-codebase:/var/www/html trafex/php-nginx
Docker Hub repository name change
Since we switched to PHP8 the repository name trafex/alpine-nginx-php7 didn't make sense anymore. Because you can't change the name of the repository on Docker Hub I created a new one.
From now on this image can be pulled from Docker Hub under the name trafex/php-nginx.
In config/ you'll find the default configuration files for Nginx, PHP and PHP-FPM. If you want to extend or customize that you can do so by mounting a configuration file in the correct folder;
docker run -v "`pwd`/nginx-server.conf:/etc/nginx/conf.d/server.conf" trafex/php-nginx
docker run -v "`pwd`/php-setting.ini:/etc/php81/conf.d/settings.ini" trafex/php-nginx
docker run -v "`pwd`/php-fpm-settings.conf:/etc/php8/php-fpm.d/server.conf" trafex/php-nginx
-v requires an absolute path I've added
pwd in the example to return the absolute path to the current directory
If you need Composer in your project, here's an easy way to add it.
FROM trafex/php-nginx:latest # Install composer from the official image COPY --from=composer /usr/bin/composer /usr/bin/composer # Run composer install to install the dependencies RUN composer install --optimize-autoloader --no-interaction --no-progress
Building with composer
If you are building an image with source code in it and dependencies managed by composer then the definition can be improved.
The dependencies should be retrieved by the composer but the composer itself (
/usr/bin/composer) is not necessary to be included in the image.
FROM composer AS composer # copying the source directory and install the dependencies with composer COPY <your_directory>/ /app # run composer install to install the dependencies RUN composer install \ --optimize-autoloader \ --no-interaction \ --no-progress # continue stage build with the desired image and copy the source including the # dependencies downloaded by composer FROM trafex/php-nginx COPY --chown=nginx --from=composer /app /var/www/html