Automated build of Apache with Docker

• Master and Debian branches are based on Debian official repository
• Ubuntu branch are based on Ubuntu official repository

Apache environment variables

Apache will make of the following environment variables.

APACHE_SERVERADMIN=admin@localhost
APACHE_SERVERNAME=localhost
APACHE_SERVERALIAS=docker.localhost
APACHE_DOCUMENTROOT=/var/www
APACHE_RUN_USER=www-data
APACHE_RUN_GROUP=www-data
APACHE_LOG_DIR=/var/web/log/apache2
APACHE_PID_FILE=/var/run/apache2.pid
APACHE_RUN_DIR=/var/run/apache2
APACHE_LOCK_DIR=/var/lock/apache2

Use the pre built image

The pre built image can be downloaded using docker directly. After that you do not need to use this command again, you will have the image on your machine.

$ sudo docker pull jacksoncage/apache

Build the docker image by yourself

If you prefer you can easily build the docker image by yourself. After this the image is ready for use on your machine and can be used for multiple starts.

$ cd apache-docker
$ sudo docker build -t jacksoncage/apache .

Start the container

The container has all pre requisites set up to run any apache application. Specify all needed environment variables.

$ sudo docker run -i -d -p 80 -e APACHE_SERVERNAME=jacksoncage.se  -v `pwd`/www:/var/www:ro jacksoncage/apache

Trying the browser on url http://localhost:80.

Start the container and keep control

The command above starts the container in deamon mode (-d) and runs in the background. If you want to start it by yourself just to see what happens use this command:

$ sudo docker run -i -t -p 80 -e APACHE_SERVERNAME=jacksoncage.se -v `pwd`/www:/var/www:ro jacksoncage/apache bash

Notice the two changes made here, first we replaced the deamon switch (-d) with the tty switch (-t) which pipes the std in and std out to your terminal.

You now end up as a root user in the docker container and can do simple things like ls, cd and more. More complex things can be achieved after a apt-get install of one or more software(s) of choice.

Get the container ip and port

The first command inspects your created container and get the IPv4 address. Second command docker exported port for 8080.

$ sudo docker inspect <container_id> | grep IPAddress | cut -d '"' -f 4
$ sudo docker port <container_id> 80 | cut -d ":" -f2

Now go to <your container's ip>:<container's port> in your browser

Stop the container

Stopping a running container is possible via the docker api. If only one instance of this container is running this command will stop it:

$ sudo docker stop `sudo docker ps |grep jacksoncage/apache |cut -d\  -f1`