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A simple Docker Compose project to setup PHP 7, Nginx and MySQL 5.7 for dev, testing and fun.

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Dockerized LEMP Environment

What's this all about?

I like to try out new web (PHP) based apps. I also need to test existing apps on PHP 7.

This repo makes it really simple with docker-compose but is in no way production ready. Configs are minimal and security hasn't been taken into consideration.

It's purely for dev / testing / fun purposes.

How do I use it?

  1. Extract your application to: ./app
  2. Run docker-compose up
  3. Configure your application to use the following DB settings:
    • Host / Server: db
    • Username: root
    • Password: password
    • Database Name: application

Help! I need to install PHP modules!?!

It's really simple. Edit: ./php/Dockerfile and add the module name to a new RUN instruction line. For example to add the redis PHP module:

RUN /usr/local/bin/docker-php-ext-install pdo pdo_mysql

RUN /usr/local/bin/docker-php-ext-install redis

Why not just add it to the end of the existing RUN instruction? Docker caches the resulting changes from instructions in image layers. By adding a new RUN line we avoid downloading and building the existing modules again.

Some modules may require adding libraries or other packages. There's plenty of references out there on doing this with the alpine Linux Docker containers.

Example: Test PHP Server Monitor - https://www.phpservermonitor.org/

(The original reason I came up with this easy way of testing PHP apps)

Example 2: Trying out Drupal 8 - https://www.drupal.com/

This is a bit more complex than the initial example. We need to install extra PHP modules and OS libraries.

At this point Drupal looks okay but if you click through the installation you.ll get to the Verify Requirements page and have a nice big red error and warning due to missing PHP modules.

Add the gd PHP module

  • Edit ./php/Dockerfile and add: RUN /usr/local/bin/docker-php-ext-install gd
  • Run docker-compose build and everything should now be great!

Installing required libs

Okay, I lied in my last comment. The PHP module will fail to install due to missing lib / dev packages. Let's install them:

  • Edit ./php/Dockerfile and amend the line: RUN /usr/local/bin/docker-php-ext-install opcache gd to:
RUN apk add --update libpng-dev libjpeg-turbo-dev && \
    /usr/local/bin/docker-php-ext-install opcache gd
  • Run docker-compose build again and I promise everything will (should) work out fine.
  • Refresh your browser page and the error should be gone.

You can continue with the installation and have Drupal FUN!!

Common tasks

To make things a little easier there's a Makefile that helps make various tasks a bit quicker / safer:

  • make restarts the docker-compose cluster
  • make up builds and brings the cluster up
  • make stop you guessed it: stops the cluster
  • make interactive brings the cluster up in the foreground
  • make clean removes the contents of ./app and ./db/data - DESTRUCTIVE
  • make reset stops the cluster, cleans ./app and ./db/data and performs a hard git reset on the repo to reset everything - SUPER-DESTRUCTIVE

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A simple Docker Compose project to setup PHP 7, Nginx and MySQL 5.7 for dev, testing and fun.

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