shell-docker-images-cron-pull

name	shell-docker-images-cron-pull
description	Pull new version of existing docker images daily. TIL note about shell. Use when working with shell and the user mentions docker images cron pull or related topics.

Pull new version of existing docker images daily

Put the following in an executable file in /etc/cron.daily

cat /etc/cron.daily/docker-images:

#!/bin/sh

# Pull latest version of all images
docker images | tail -n +2 | grep -v "<none>" | awk -F " " '{print $1":"$2}' | xargs -L1 docker pull

# Clean-up all un-tagged images, we consider those orphaned
docker images | grep "<none>" | awk -F " " '{print $3}' | xargs -L1 docker rmi