In this post, we’ll show how to install docker-compose (and the docker backend) on Alpine Linux.
Step 1: Enable the apk community repository
Edit the repository config as root using
vi /etc/apk/repositories
It should look like this (the exact URLs will vary according to your selected mirror)
#/media/cdrom/apks http://ftp.halifax.rwth-aachen.de/alpine/v3.13/main #http://ftp.halifax.rwth-aachen.de/alpine/v3.13/community #http://ftp.halifax.rwth-aachen.de/alpine/edge/main #http://ftp.halifax.rwth-aachen.de/alpine/edge/community #http://ftp.halifax.rwth-aachen.de/alpine/edge/testing
Now find the line that ends in /communityand does NOT end with /edge/community. Typically, this is the second line in the file:
#http://ftp.halifax.rwth-aachen.de/alpine/v3.13/community
Navigate to this line by using the arrow keys, press the Insert key in order to activate Editing.
Then remove the # at the beginning of the line. The resulting file should look like this:
#/media/cdrom/apks http://ftp.halifax.rwth-aachen.de/alpine/v3.13/main http://ftp.halifax.rwth-aachen.de/alpine/v3.13/community #http://ftp.halifax.rwth-aachen.de/alpine/edge/main #http://ftp.halifax.rwth-aachen.de/alpine/edge/community #http://ftp.halifax.rwth-aachen.de/alpine/edge/testing
Now save the file an exit the editor by pressing the Esc key, entering :wq and pressing enter.
Step 2: Install docker & docker-compose
Now we’ll fetch the package lists using
apk update
After that, we can install docker and docker-compose using
apk add docker docker-compose
Step 3: Enable docker daemon autostart & start docker daemon
Enable autostart on boot using
rc-update add docker default
and then start docker using
/etc/init.d/docker start