PHP + Nginx Docker Image

This repository defines a Docker image used by Burning Man for PHP projects.

It includes:

• Alpine Linux
• PHP: The PHP language interpreter and runtime.
• PHP-FPM: A PHP FastCGI implementation
• Nginx: HTTP server.

Supported versions

PHP	Nginx	Operating System
8.1.4	1.20.2	Alpine Linux 3.15
8.2.0	1.22.1	Alpine Linux 3.16
8.2.0	1.22.1	Alpine Linux 3.17

Usage

This image builds on the the corresponding version of the fpm-alpine variant of the Official PHP Image on Docker Hub. It adds the Nginix web server, which is used to vend applications.

This image also adds PHP-FPM, which is used for improving web server performance, and Supervisor, which is used to run and monitor PHP-FPM and Nginix within containers.

Note that this does not use the apache variants of the Official PHP Image, so any reference's in the Official PHP Image's documentation to configuring Apache do not apply here. See below for instructions on configuring Nginx.

Content

Static Content

The install directory for static content is configured in Nginx as /var/www/html/ and is published at the root (/) URL path by the server.

Web Application Content

The install directory for PHP applications is configured in Nginx as /var/www/application/ and is published at the /application/ URL path by the server.

Error Message Content

The install directory for HTTP error pages is configured in Nginx as /var/www/error/ and is used internally for default HTTP error content by the server.

Using With A Dockerfile

Create a Dockerfile similar to this one:

FROM php-nginx:7.2-alpine3.8
COPY /path/to/my/php/app /var/www/application

Then build the image and run a container:

$ docker build -t my-php-app .
$ docker run --detach --name my-php-app my-php-app

Using Without A Dockerfile

Instead of building and running a new image containing your application, you can mount your application into a new container running this image:

$ docker run --detach --name my-php-app --publish 80:80 --volume /path/to/my/php/app:/var/www/application php-nginx:7.2-alpine3.8

This is useful, for example, in a development scenario, where you want to be able to modify your code and see the results without rebuilding an application container.

Command Line PHP Programs

To run command line PHP programs, see the "With Command Line" section in the Official PHP Image documentation. You may prefer to use the cli variant of the Official PHP Image in this case, as you probably don't need PHP-FPM or Nginx. However, if you are testing a web application that uses this container, you may wish to use the same container for consistency.

Configuration

Nginx

The configuration files for Nginx are at /etc/nginx/. This image adds:

• /etc/nginx/httpd.d/0-http.conf: Enables gzip.
• /etc/nginx/httpd.d/default.conf: Sets up the default web site.

PHP

The configuration files for PHP are at /usr/local/etc/php/.

PHP-FPM

The configuration files for PHP-FPM are at /usr/local/etc/php-fpm/. This image adds:

• /usr/local/etc/php-fpm.d/zz-docker_nginx.conf: Sets up the listening socket file.

Supervisor

The configuration files for Supervisor are at /etc/supervisor.d/. This image adds:

• /etc/supervisor.d/php-fpm-nginx.ini: Configures Supervisor to run PHP-FPM and Nginx.

Adding PHP Extensions

This image includes a number of common PHP extensions. Run php -m (or php -i) to get a list:

docker run --rm php-fpm:7.2-alpine3.8 php -m

To add PHP extensions to your images, see the "How to install more PHP extensions" section in the Official PHP Image documentation.