M2 development with Docker

The story

Although I have tried so many docker-compose projects, I didn’t find any project that matches my requirement:

  • Uses only Official Images.
  • Simply enough to setup/modify.
  • No extra deployment step from host to containers after changing the code.

So I have created a docker-compose project. Below are the reasons for you to use or not use it:

Advantages:

  • Running Magento 2 project really fast on your machine.
  • Just a few steps to setup.
  • No extra step to deploy code from host to container.
  • Easy to modify PHP, MySQL, and Nginx configurations.
  • Works on Linux, macOS, and Windows.

Disadvantages (can be reduced in future releases):

  • Lack of advanced tools like Redis, Varnish, XDebug.
  • Lack of Environment variables configuration.
  • Lack of tests on various types of projects.

You can now jump to the Github project or read the installation instruction below (Linux only).

1. Install Docker & docker-compose

// Install Docker
$ curl -fsSL https://get.docker.com -o get-docker.sh
$ sh get-docker.sh

// Install docker-compose
$ sudo curl -L "https://github.com/docker/compose/releases/download/1.25.3/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
$ sudo chmod +x /usr/local/bin/docker-compose

// Check docker status
$ docker info

If you install docker with a non-root user, you will have permission issue, this is how to fix:

// Create the docker group if it does not exist
$ sudo groupadd docker

// Add your user to the docker group.
$ sudo usermod -aG docker $USER

// Run the following command or Logout and login again and run (that doesn't work you may need to reboot your machine first)
$ newgrp docker

// Check if docker can be run without root
$ docker run hello-world

2. Getting started

It’s time to jump to the project README.md.

3. Some useful tips & tricks

About .env configurations

APP_NAME: when you change this, everything that relates to APP_NAME will be changed too. For example, if you the change APP_NAME to myapp, the login command will be:

docker exec -it myapp bash

MYSQL_IMAGE: Don’t use the version lower than 5.7 (5.6 for example). You may lose your data when run docker-compose down.

Stop all other running containers to prevent port confliction:

// Stop all containers
$ docker stop $(docker ps -a -q)

// Stop all containers from system startup
$ docker update --restart=no $(docker ps -a -q)

Remove old unused images to reclaim disk space:

$ docker image prune -a

Reset MySQL database (be careful, it will remove all MySQL data):

// Remove the mysql container first
$ docker rm app_db

// List all volumes
$ docker volume ls

// Remove the dbdata volume, the [volume_name] depends on current directory
// So it look like "currentdirname_dbdata"
$ docker volume rm [volume_name]

This post will be updated frequently

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