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Containerized MediaWiki install based on Ubuntu.

Briefly

This repo contains Docker Compose containers to run the MediaWiki software.

Clone the repo, create and start containers:

git clone https://github.com/pastakhov/compose-mediawiki-ubuntu.git
cd compose-mediawiki-ubuntu
docker-compose up

Wait for the completion of the build and initialization process and access it via http://localhost:8080 in a browser.

Enjoy with MediaWiki + VisualEditor + Elasticsearch + most popular extensions

Launching MediaWiki

Architecture of mediawiki containers

Running sudo docker-compose up in a checkout of this repository will start containers:

The elasticsearch, parsoid, restbase, proxy, web containers are based on Ubuntu 16.04

Settings

Settings are in the docker-compose.yml file, the environment sections

db

Was cloned from official mysql container and has the same environment variables. The reason why it is better than the official is the ability to automatically update the database when upgrading the version of mysql. The only one important environment variable for us is MYSQL_ROOT_PASSWORD, it specifies the password that will be set for the MySQL root superuser account. If changed, make sure that MW_DB_INSTALLDB_PASS in web section was changed too.

proxy

environment variables

  • PROXY_BACKEND_{name} defines backend using format 'host:port'. Generally backend name should be the same as container name. Example: PROXY_BACKEND_web=web:80.

More details on Varnish service page.

ports

The proxy container are listening for connections on private port 80. By default the public port for connections is 8080:

    ports:
        - "8080:80"

You are welcome to change it to any you would like, just note: make sure that MW_SITE_SERVER has correct value

parsoid

environment variables

  • PARSOID_DOMAIN_{domain} defines uri and domain for the Parsoid service. The '{domain}' word should be the same as the MW_REST_DOMAIN parameter in the web container. You can specify any number of such variables (by the number of domains used for the service).

More details on Parsoid service page.

restbase

environment variables

  • RB_CONF_DOMAIN_{domain} defines uri and domain for the RESTBase service. The '{domain}' word should be the same as the MW_REST_DOMAIN parameter in the web container. You can specify any number of such variables (by the number of domains used for the service). Example: RB_CONF_DOMAIN_web=http://web/w/api.php.
  • RB_CONF_PARSOID_HOST defines uri to Parsoid service. Example: http://parsoid:8000.
  • RB_CONF_API_URI_TEMPLATE defines uri to the MediaWiki API. Example :http://{domain}/w/api.php
  • RB_CONF_BASE_URI_TEMPLATE defines base uri for the links to RESTBase service. Example: http://{domain}/api/rest_v1.

More details on RESTbase service page.

web

environment variables

  • MW_SITE_SERVER configures $wgServer, set this to the server host and include the protocol like http://my-wiki:8080
  • MW_SITE_NAME configures $wgSitename
  • MW_SITE_LANG configures $wgLanguageCode
  • MW_DEFAULT_SKIN configures $wgDefaultSkin
  • MW_ENABLE_UPLOADS configures $wgEnableUploads
  • MW_USE_INSTANT_COMMONS configures $wgUseInstantCommons
  • MW_ADMIN_USER configures default administrator username
  • MW_ADMIN_PASS configures default administrator password
  • MW_DB_NAME specifies database name that will be created automatically upon container startup
  • MW_DB_USER specifies database user for access to database specified in MW_DB_NAME
  • MW_DB_PASS specifies database user password
  • MW_DB_INSTALLDB_USER specifies database superuser name for create database and user specified above
  • MW_DB_INSTALLDB_PASS specifies database superuser password, should be the same as MYSQL_ROOT_PASSWORD in db section.
  • MW_PROXY_SERVERS (comma separated values) configures $wgSquidServers. Leave empty if no reverse proxy server used.
  • MW_MAIN_CACHE_TYPE configures $wgMainCacheType. MW_MEMCACHED_SERVERS should be provided for CACHE_MEMCACHED.
  • MW_MEMCACHED_SERVERS (comma separated values) configures $wgMemCachedServers.
  • MW_SEARCH_TYPE configures $wgSearchType. Leave empty or set CirrusSearch for MediaWiki using Elasticsearch. MW_CIRRUS_SEARCH_SERVERS should be provided for CirrusSearch.
  • MW_FLOW_NAMESPACES (comma separated values) specifies namespaces where the Flow extension should be enabled.
  • MW_REST_DOMAIN specifies the domain parameter used for the REST services such as Parsoid and RESTBase, generally should be the same as the name of the container.
  • MW_REST_RESTBASE_PROXY_PATH if reverse proxy are used defines path for the $wgVisualEditorFullRestbaseURL and $wgVisualEditorRestbaseURL variables. Example: /api/rest_.
  • MW_AUTOUPDATE if true (by default) run needed maintenance scripts automatically before web server start.
  • MW_SHOW_EXCEPTION_DETAILS if true (by default) configures $wgShowExceptionDetails as true.
  • PHP_LOG_ERRORS specifies log_errors parameter in php.ini file.
  • PHP_ERROR_REPORTING specifies error_reporting parameter in php.ini file. E_ALL by default, on production should be changed to E_ALL & ~E_DEPRECATED & ~E_STRICT.

LocalSettings.php

The LocalSettings.php devided to three parts:

  • LocalSettings.php will be created automatically upon container startup, contains settings specific to the MediaWiki installed instance such as database connection, $wgSecretKey and etc. Should not be changed
  • DockerSettings.php сontains settings specific to the released containers such as database server name, path to programs, installed extensions, etc. Should be changed if you make changes to the containers only
  • CustomSettings.php - contains user defined settings such as user rights, extensions settings and etc. You should make changes there. CustomSettings.php placed in folder web And will be copied to the container during build

Logo

The $wgLogo variable is set to $wgScriptPath/logo.png value. The web/logo.png file will be copied to $wgScriptPath/logo.png path during build. For change the logo just replace the web/logo.png file by your logo file and rebuild container

Favicon

The $wgFavicon variable is set to $wgScriptPath/favicon.ico value. The web/favicon.ico file will be copied to $wgScriptPath/favicon.ico path during build. For change the favicon just replace the web/favicon.ico file by your favicon file and rebuild container

How do I rebuild the containers to accept changes to the settings? Just use the command:

docker-compose up --build

It picks up the changes by stopping and recreating the containers.

Why should I rebuild the container every time I change the settings? In this case you are able to check on changes locally before deploy ones to your server. This solution significantly reduces the likelihood that something will be broken on your server when you change the settings.

First start

During the first start, the MediaWiki will be fully initialized according to the settings specified in the docker-compose.yml file. This process includes:

  • initialize database, create root user
  • initialize elasticsearch storage
  • initialize MediaWiki:
    • run install.php maintenance script that creates MediaWiki database, user and write settings to LocalSettings.php file.
    • include web\DockerSettings.php file to LocalSettings.php that contains minimal needed settings for installed MediaWiki extensions
    • run update.php maintenance script that updated MediaWiki database schema for MediaWiki extensions
    • generate elasticsearch index and bootstrap the search index
    • get the latest data for CLDR and UniversalLanguageSelector extensions
    • run populateContentModel.php maintenance script that populates the fields nedeed for use the Flow extension on all namespaces

Keeping up to date

Make a full backup of the wiki, including both the database and the files. While the upgrade scripts are well-maintained and robust, things could still go awry.

cd compose-mediawiki-ubuntu
docker-compose exec db /bin/bash -c 'mysqldump --all-databases -uroot -p"$MYSQL_ROOT_PASSWORD" 2>/dev/null | gzip | base64 -w 0' | base64 -d > backup_$(date +"%Y%m%d_%H%M%S").sql.gz
docker-compose exec web /bin/bash -c 'tar -c $MW_VOLUME $MW_HOME/images 2>/dev/null | base64 -w 0' | base64 -d > backup_$(date +"%Y%m%d_%H%M%S").tar

picking up the latest changes, stop, rebuld and start containers:

cd compose-mediawiki-ubuntu
git pull
docker-compose build
docker-compose stop
docker-compose up

The upgrade process is fully automated and includes the launch of all necessary maintenance scripts (only when it is really required)

Data volumes

  • web
    • /var/www/html/w/images - files uploaded by users
    • /mediawiki - contains info about the MediaWiki instance

List of installed extensions

Bundled Skins

Bundled extensions

see https://www.mediawiki.org/wiki/Bundled_extensions

Commonly used extensions