moodle-docker: Docker Containers for Moodle Developers
This repository contains Docker configuration aimed at Moodle developers and testers to easily deploy a testing environment for Moodle.
- All supported database servers (PostgreSQL, MySQL, Micosoft SQL Server, Oracle XE)
- Behat/Selenium configuration for Firefox and Chrome
- Catch-all smtp server and web interface to messages using MailHog
- All PHP Extensions enabled configured for external services (e.g. solr, ldap)
- All supported PHP versions
- Zero-configuration approach
- Backed by automated tests
- Docker and Docker Compose installed if your Docker CLI version does not support
- 3.25GB of RAM (if you choose Microsoft SQL Server as db server)
# Set up path to Moodle code export MOODLE_DOCKER_WWWROOT=/path/to/moodle/code # Choose a db server (Currently supported: pgsql, mariadb, mysql, mssql, oracle) export MOODLE_DOCKER_DB=pgsql # Ensure customized config.php for the Docker containers is in place cp config.docker-template.php $MOODLE_DOCKER_WWWROOT/config.php # Start up containers bin/moodle-docker-compose up -d # Wait for DB to come up (important for oracle/mssql) bin/moodle-docker-wait-for-db # Work with the containers (see below) # [..] # Shut down and destroy containers bin/moodle-docker-compose down
Run several Moodle instances
By default, the script will load a single instance. If you want to run two
or more different versions of Moodle at the same time, you have to add this
environment variable prior running any of the steps at
# Define a project name; it will appear as a prefix on container names. export COMPOSE_PROJECT_NAME=moodle34 # Use a different public web port from those already taken export MOODLE_DOCKER_WEB_PORT=1234 # [..] run all "Quick steps" now
Having set up several Moodle instances, you need to have set up
the environment variable
COMPOSE_PROJECT_NAME to just refer
to the instance you expect to. See
to see more about
docker-compose environment variables.
Use containers for running behat tests
# Initialize behat environment bin/moodle-docker-compose exec webserver php admin/tool/behat/cli/init.php # [..] # Run behat tests bin/moodle-docker-compose exec -u www-data webserver php admin/tool/behat/cli/run.php --tags=@auth_manual Running single behat site: Moodle 3.4dev (Build: 20171006), 33a3ec7c9378e64c6f15c688a3c68a39114aa29d Php: 7.1.9, pgsql: 9.6.5, OS: Linux 4.9.49-moby x86_64 Server OS "Linux", Browser: "firefox" Started at 25-05-2017, 19:04 ............... 2 scenarios (2 passed) 15 steps (15 passed) 1m35.32s (41.60Mb)
- The behat faildump directory is exposed at http://localhost:8000/_/faildumps/.
MOODLE_DOCKER_BROWSERto switch the browser you want to run the test against. You need to recreate your containers using
bin/moodle-docker-composeas described below, if you change it.
Use containers for running phpunit tests
# Initialize phpunit environment bin/moodle-docker-compose exec webserver php admin/tool/phpunit/cli/init.php # [..] # Run phpunit tests bin/moodle-docker-compose exec webserver vendor/bin/phpunit auth/manual/tests/manual_test.php Moodle 4.0.4 (Build: 20220912), ef7a51dcb8e805a6889974b04d3154ba8bd874f2 Php: 7.3.33, pgsql: 11.15 (Debian 11.15-1.pgdg90+1), OS: Linux 5.10.0-11-amd64 x86_64 PHPUnit 9.5.13 by Sebastian Bergmann and contributors. .. 2 / 2 (100%) Time: 00:00.304, Memory: 72.50 MB OK (2 tests, 7 assertions)
- If you want to run tests with code coverage reports:
# Build component configuration bin/moodle-docker-compose exec webserver php admin/tool/phpunit/cli/util.php --buildcomponentconfigs # Execute tests for component bin/moodle-docker-compose exec webserver php -d pcov.enabled=1 -d pcov.directory=. vendor/bin/phpunit --configuration reportbuilder --coverage-text
- See available Command-Line Options for further info
Use containers for manual testing
# Initialize Moodle database for manual testing bin/moodle-docker-compose exec webserver php admin/cli/install_database.php --agree-license --fullname="Docker moodle" --shortname="docker_moodle" --summary="Docker moodle site" --adminpass="test" --adminemail="firstname.lastname@example.org"
- Moodle is configured to listen on
- Mailhog is listening on
http://localhost:8000/_/mailto view emails which Moodle has sent out.
- The admin
usernameyou need to use for logging in is
adminby default. You can customize it by passing
Use containers for running behat tests for the Moodle App
In order to run Behat tests for the Moodle App, you need to install the local_moodlemobileapp plugin in your Moodle site. Everything else should be the same as running standard Behat tests for Moodle. Make sure to filter tests using the
The Behat tests will be run against a container serving the mobile application, you have two options here:
Use a Docker image that includes the application code. You need to specify the
MOODLE_DOCKER_APP_VERSIONenv variable and the moodlehq/moodleapp image will be downloaded from Docker Hub. You can read about the available images in Moodle App Docker Images (for Behat, you'll want to run the ones with the
Use a local copy of the application code and serve it through Docker, similar to how the Moodle site is being served. Set the
MOODLE_DOCKER_APP_PATHenv variable to the codebase in you file system. This will assume that you've already initialized the app calling
npm run setuplocally.
For both options, you also need to set
MOODLE_DOCKER_BROWSER to "chrome".
# Install local_moodlemobileapp plugin git clone https://github.com/moodlehq/moodle-local_moodlemobileapp "$MOODLE_DOCKER_WWWROOT/local/moodlemobileapp" # Initialize behat environment bin/moodle-docker-compose exec webserver php admin/tool/behat/cli/init.php # (you should see "Configured app tests for version X.X.X" here) # Run behat tests bin/moodle-docker-compose exec -u www-data webserver php admin/tool/behat/cli/run.php --tags="@app&&@mod_login" Running single behat site: Moodle 4.0dev (Build: 20200615), a2b286ce176fbe361f0889abc8f30f043cd664ae Php: 7.2.30, pgsql: 11.8 (Debian 11.8-1.pgdg90+1), OS: Linux 5.3.0-61-generic x86_64 Server OS "Linux", Browser: "chrome" Browser specific fixes have been applied. See http://docs.moodle.org/dev/Acceptance_testing#Browser_specific_fixes Started at 13-07-2020, 18:34 ..................................................................... 4 scenarios (4 passed) 69 steps (69 passed) 3m3.17s (55.02Mb)
If you are going with the second option, this can be used for local development of the Moodle App, given that the
moodleapp container serves the app on the local 8100 port. However, this is intended to run Behat tests that require interacting with a local Moodle environment. Normal development should be easier calling
npm start in the host system.
By all means, if you don't want to have npm installed locally you can go full Docker executing the following commands before starting the containers:
docker run --volume $MOODLE_DOCKER_APP_PATH:/app --workdir /app bash -c "npm install npm@7 -g && npm ci"
You can learn more about writing tests for the app in Acceptance testing for the Moodle App.
Using VNC to view behat tests
MOODLE_DOCKER_SELENIUM_VNC_PORT is defined, selenium will expose a VNC session on the port specified so behat tests can be viewed in progress.
For example, if you set
MOODLE_DOCKER_SELENIUM_VNC_PORT to 5900..
- Download a VNC client: https://www.realvnc.com/en/connect/download/viewer/
- With the containers running, enter 0.0.0.0:5900 as the port in VNC Viewer. You will be prompted for a password. The password is 'secret'.
- You should be able to see an empty Desktop. When you run any Behat tests a browser will popup and you will see the tests execute.
Stop and restart containers
bin/moodle-docker-compose down which was used above after using the containers stops and destroys the containers. If you want to use your containers continuously for manual testing or development without starting them up from scratch everytime you use them, you can also just stop without destroying them. With this approach, you can restart your containers sometime later, they will keep their data and won't be destroyed completely until you run
# Stop containers bin/moodle-docker-compose stop # Restart containers bin/moodle-docker-compose start
You can change the configuration of the docker images by setting various environment variables before calling
When you change them, use
bin/moodle-docker-compose down && bin/moodle-docker-compose up -d to recreate your environment.
|Environment Variable||Mandatory||Allowed values||Default value||Notes|
||yes||pgsql, mariadb, mysql, mssql, oracle||none||The database server to run against|
||yes||path on your file system||none||The path to the Moodle codebase you intend to test|
||no||Docker tag - see relevant database page on docker-hub||mysql: 8.0
|The database server docker image tag|
||no||8.1, 8.0, 7.4, 7.3, 7.2, 7.1, 7.0, 5.6||8.0||The php version to use|
||no||firefox, chrome, firefox:<tag>, chrome:<tag>||firefox:3||The browser to run Behat against. Supports a colon notation to specify a specific Selenium docker image version to use. e.g. firefox:2.53.1 can be used to run with older versions of Moodle (<3.5)|
||no||any value||not set||If set, dependencies for memcached, redis, solr, and openldap are added|
||no||Path on your file system||not set||Behat faildumps are already available at http://localhost:8000/_/faildumps/ by default, this allows for mapping a specific filesystem folder to retrieve the faildumps in bulk / automated ways|
||no||any integer value||none||If you want to bind to any host IP different from the default 127.0.0.1, you can specify it with the bind_ip:port format (0.0.0.0 means bind to all). Username is "moodle" (or "sa" for mssql) and password is "m@0dl3ing".|
||no||any valid hostname||localhost||The hostname for web|
||no||any integer value (or bind_ip:integer)||127.0.0.1:8000||The port number for web. If set to 0, no port is used.
If you want to bind to any host IP different from the default 127.0.0.1, you can specify it with the bind_ip:port format (0.0.0.0 means bind to all)
||no||any integer value (or bind_ip:integer)||not set||If set, the selenium node will expose a vnc session on the port specified. Similar to MOODLE_DOCKER_WEB_PORT, you can optionally define the host IP to bind to. If you just set the port, VNC binds to 127.0.0.1|
||no||path on your file system||not set||If set and the chrome browser is selected, it will start an instance of the Moodle app from your local codebase|
||no||a valid app docker image version||not set||If set will start an instance of the Moodle app if the chrome browser is selected|
||no||'ionic3' or 'ionic5'||not set||Set this to indicate the runtime being used in the Moodle app. In most cases, this can be ignored because the runtime is guessed automatically (except on Windows using the
||no||node image version tag||not set||Node version to run the app. In most cases, this can be ignored because the version is parsed from the project's
In some situations you may wish to add local customisations, such as including additional containers, or changing existing containers.
This can be accomplished by specifying a
local.yml, which will be added in and loaded with the existing yml configuration files automatically. For example:
version: "2" services: # Add the adminer image at the latest tag on port 8080:8080 adminer: image: adminer:latest restart: always ports: - 8080:8080 depends_on: - "db" # Modify the webserver image to add another volume: webserver: volumes: - "/opt/data:/opt/data:cached"
Using XDebug for live debugging
The XDebug PHP Extension is not included in this setup and there are reasons not to include it by default.
However, if you want to work with XDebug, especially for live debugging, you can add XDebug to a running webserver container easily:
# Install XDebug extension with PECL moodle-docker-compose exec webserver pecl install xdebug # Set some wise setting for live debugging - change this as needed read -r -d '' conf <<'EOF' ; Settings for Xdebug Docker configuration xdebug.mode = debug xdebug.client_host = host.docker.internal EOF moodle-docker-compose exec webserver bash -c "echo '$conf' >> /usr/local/etc/php/conf.d/docker-php-ext-xdebug.ini" # Enable XDebug extension in Apache and restart the webserver container moodle-docker-compose exec webserver docker-php-ext-enable xdebug moodle-docker-compose restart webserver
While setting these XDebug settings depending on your local need, please take special care of the value of
xdebug.client_host which is needed to connect from the container to the host. The given value
host.docker.internal is a special DNS name for this purpose within Docker for Windows and Docker for Mac. If you are running on another Docker environment, you might want to try the value
localhost instead or even set the hostname/IP of the host directly.
After these commands, XDebug ist enabled and ready to be used in the webserver container. If you want to disable and re-enable XDebug during the lifetime of the webserver container, you can achieve this with these additional commands:
# Disable XDebug extension in Apache and restart the webserver container moodle-docker-compose exec webserver sed -i 's/^zend_extension=/; zend_extension=/' /usr/local/etc/php/conf.d/docker-php-ext-xdebug.ini moodle-docker-compose restart webserver # Enable XDebug extension in Apache and restart the webserver container moodle-docker-compose exec webserver sed -i 's/^; zend_extension=/zend_extension=/' /usr/local/etc/php/conf.d/docker-php-ext-xdebug.ini moodle-docker-compose restart webserver
As can be seen in bin/moodle-docker-compose, this repo is just a series of Docker Compose configurations and light wrapper which make use of companion docker images. Each part is designed to be reusable and you are encouraged to use the docker [compose] commands as needed.
Companion docker images
The following Moodle customised docker images are close companions of this project:
- moodle-php-apache: Apache/PHP Environment preconfigured for all Moodle environments
- moodle-db-mssql: Microsoft SQL Server for Linux configured for Moodle
- moodle-db-oracle: Oracle XE configured for Moodle
Are extremely welcome!