Learn How To Installing docker-compose on CoreOS
Table of Contents
This article explains how to install docker-compose
on CoreOS. In CoreOS, the /usr/
folder is immutable so the standard /usr/local/bin
path is unavailable for running binaries. The /opt/bin
directory, however, is available for these files.
Installation
First, verify that /opt/bin
is in your environment $PATH
.
docker-host ~ # echo $PATH
/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/opt/bin
If /opt/bin
is not listed, as the root user, create or modify the file /root/.bash_profile
and add the following:
PATH=$PATH:/opt/bin
Then run source /root/.bash_profile
to pick up the new configuration. It will be applied automatically whenever you login to the shell.
To download the latest stable version of docker-compose
, run the following commands in a bash script or one line at a time at the command line:
export DOCKER_COMPOSE_VERSION=`git ls-remote --tags git://github.com/docker/compose.git | awk '{print $2}' |grep -v "docs|rc" |awk -F'/' '{print $3}' |sort -V |tail -n1`
curl -L https://github.com/docker/compose/releases/download/$DOCKER_COMPOSE_VERSION/docker-compose-`uname -s`-`uname -m` > /opt/bin/docker-compose
chmod +x /opt/bin/docker-compose
If you’d rather specify a version, set DOCKER_COMPOSE_VERSION
to a valid docker-compose
version.
Verify that the file is available by typing:
which docker-compose
If the configuration was successful, you will see the output:
/opt/bin/docker-compose
Verify the version by running docker-compose -v
.
This concludes my tutorial. For alternative installation methods, consult the Docker documentation.
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