Docker
(→First install docker) |
(→Mediawiki) |
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Create a database | Create a database | ||
* # inspired from https://hub.docker.com/_/mysql/ | * # inspired from https://hub.docker.com/_/mysql/ | ||
− | * docker run --name wiki-mysql -e MYSQL_ROOT_PASSWORD=$DBPASSWORD -d mysql:latest | + | * # Create a data container with a directory /var/lib/mysql |
+ | * docker create -v /var/lib/mysql --name wiki-mysql-data mysql:latest /bin/true | ||
+ | * docker run --name wiki-mysql --volumes-from wiki-mysql-data -e MYSQL_ROOT_PASSWORD=$DBPASSWORD -d mysql:latest | ||
+ | * docker ps -a | grep wiki-mysql.* # look the nice containers we just did | ||
Create a mediawiki | Create a mediawiki | ||
+ | <!-- | ||
* # well probably something like found here https://hub.docker.com/r/synctree/mediawiki/ | * # well probably something like found here https://hub.docker.com/r/synctree/mediawiki/ | ||
* docker run --name $DOCKERNAME --link wiki-mysql:mysql -p $WEBPORT:80 -d synctree/mediawiki | * docker run --name $DOCKERNAME --link wiki-mysql:mysql -p $WEBPORT:80 -d synctree/mediawiki | ||
+ | --> | ||
+ | |||
+ | * or here https://hub.docker.com/r/nickstenning/mediawiki/ (with data container support) | ||
+ | * as stated on that webpage | ||
+ | * docker run --name $DOCKERNAME --link wiki-mysql:mysql -p $WEBPORT:80 -d nickstenning/mediawiki | ||
Configure mediawiki | Configure mediawiki | ||
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** echo password: $DBPASSWORD | ** echo password: $DBPASSWORD | ||
** at end of setup you get a LocalSettings.php to download | ** at end of setup you get a LocalSettings.php to download | ||
− | ** this file has to be provided to the docker or put into the container. Seems to be several ways to do it | + | ** this file has to be provided to the docker or put into the container. Seems to be several ways to do it. |
− | * cat LocalSettings.php | docker exec -i $DOCKERNAME sh -c 'cat > /var/www/html/LocalSettings.php' | + | |
− | * docker exec -i $DOCKERNAME chown www-data:www-data /var/www/html/LocalSettings.php | + | Create wiki data container |
− | * docker exec -i $DOCKERNAME chmod 444 /var/www/html/LocalSettings.php | + | * docker run --name ${DOCKERNAME}-data -v /data -d nickstenning/mediawiki # to be tested |
+ | |||
+ | * cat LocalSettings.php | docker exec -i ${DOCKERNAME}-data sh -c 'cat > /var/www/html/LocalSettings.php' | ||
+ | * docker exec -i ${DOCKERNAME}-data chown www-data:www-data /var/www/html/LocalSettings.php | ||
+ | * docker exec -i ${DOCKERNAME}-data chmod 444 /var/www/html/LocalSettings.php | ||
* echo "wiki is on http://localhost:$WEBPORT/index.php" | * echo "wiki is on http://localhost:$WEBPORT/index.php" | ||
Revision as of 20:15, 8 February 2016
My little page about getting docker to run, done by somebody having no idea what docker is.
Yeah, DAU-docker!
ATTENTION this uses default passwords, and is completely unsecure !!!!
Contents |
First install docker
- sudo apt-get install docker.io
- sudo usermod -a -G docker $(id -un)
- # logoout/login to get your group attribution
Learn something about the docker philosophy
You usually never log in to the container but specify all settings in the Dockerfile. Recreating the container should give you a ready to run application.
Most installs don't care really what happens to your data, but docker has a feature for this. Put the data into a separate container than the application. Then make the data container mount points visible in your application container. This way you can replace the application (update) without needing a backup/restore step.
Mediawiki
This does not use a data container, which is bad
Fist some settings
- WEBPORT=8080 # on which port the webserver should listen on the main host, if you have already a webserver, 80 won't work
- DBPASSWORD="$(openssl rand -base64 9)" # the password for the database (humm... save it :-)
- DOCKERNAME="mediawiki"
Create a database
- # inspired from https://hub.docker.com/_/mysql/
- # Create a data container with a directory /var/lib/mysql
- docker create -v /var/lib/mysql --name wiki-mysql-data mysql:latest /bin/true
- docker run --name wiki-mysql --volumes-from wiki-mysql-data -e MYSQL_ROOT_PASSWORD=$DBPASSWORD -d mysql:latest
- docker ps -a | grep wiki-mysql.* # look the nice containers we just did
Create a mediawiki
- or here https://hub.docker.com/r/nickstenning/mediawiki/ (with data container support)
- as stated on that webpage
- docker run --name $DOCKERNAME --link wiki-mysql:mysql -p $WEBPORT:80 -d nickstenning/mediawiki
Configure mediawiki
- echo "connect to http://localhost:$WEBPORT/"
- click on "setup the wiki"
- database host: mysql
- database name: mysql
- table prefix: mw #change this if you install more than one mediawiki into this database
- username: root
- echo password: $DBPASSWORD
- at end of setup you get a LocalSettings.php to download
- this file has to be provided to the docker or put into the container. Seems to be several ways to do it.
Create wiki data container
- docker run --name ${DOCKERNAME}-data -v /data -d nickstenning/mediawiki # to be tested
- cat LocalSettings.php | docker exec -i ${DOCKERNAME}-data sh -c 'cat > /var/www/html/LocalSettings.php'
- docker exec -i ${DOCKERNAME}-data chown www-data:www-data /var/www/html/LocalSettings.php
- docker exec -i ${DOCKERNAME}-data chmod 444 /var/www/html/LocalSettings.php
- echo "wiki is on http://localhost:$WEBPORT/index.php"
More help: well the usual mediawiki help
Engelsystem
This does not use a data container, but as it's often only for a short event, I don't care.
Give some configuration stuff
- ENGELPORT=80 # on which port the engel system should listen on the main host, if you have a webserver, 80 won't work
- ENGELDB=3306 # on which port the mysql of the engelsystem should be visible on the main host
- DBPASSWORD="$(openssl rand -base64 9)" # the password for the database (humm... save it it :-)
- ENGELPASSWORD="$(openssl rand -base64 9)" # the password for the engelsystem (humm... save it it :-)
- DOCKERNAME="engelsystem"
- ENGELADMIN="engeladmin" # well just use it
from https://github.com/ruep/dockerfile-engel
- git clone https://github.com/ruep/dockerfile-engel.git
- cd dockerfile-engel/
- docker build -t engelweb-app . # this takes a long time
- docker run --name "$DOCKERNAME" -d -p ${ENGELPORT}:80 -p ${ENGELDB}:3306 -e MYSQL_PASS="$DBPASSWORD" engelweb-app
- docker exec -t "$DOCKERNAME" sed -i 's/-pengel/-p'$DBPASSWORD'/' /engelweb/db/createdb.sh # needed coz db pass hardcoded
- docker exec -t "$DOCKERNAME" /engelweb/db/createdb.sh engelsystem engeladmin "$ENGELPASSWORD"
- docker exec -t "$DOCKERNAME" sh -c "/usr/bin/mysql -uadmin -p$DBPASSWORD engelsystem < /engelweb/db/install.sql"
- docker exec -t "$DOCKERNAME" sh -c "/usr/bin/mysql -uadmin -p$DBPASSWORD engelsystem < /engelweb/db/update.sql"
- echo "Please remember the database password: $DBPASSWORD"
- echo "Please remember the engelsystem login: ${ENGELADMIN} ${ENGELPASSWORD}"
- echo login to http://localhost:$ENGELPORT/ with user 'admin' and password 'asdfasdf'