Prune based on age #28497
Description
#26108 is fantastic. However, it doesn't handle this use case: a CI server where I need to keep images around for a couple days for caching, but need to prune them after that. I would like to have a time parameter (in days or hours) to exclude image/container/etc pruning. An LRU system would be ideal, but more technically complicated. For context, I am handling this with the script below. It's a little gross, but gets the job done.
#!/bin/bash
function check_age(){
while read cid
do
age=$(date -d $(docker inspect -f '{{.Created}}' $cid) +%s)
if [ $age -lt $TOO_OLD ]; then
echo "$cid"
fi
done
}
get_names(){
while read cid
do
docker inspect -f '{{.RepoTags}}' $cid | tr -d '[]'
done
}
echo "cleaning containers"
TOO_OLD=$(echo "$(date +%s)-60*60*6" | bc)
docker rm -v $(docker ps --filter status=exited -q 2>/dev/null)
docker rm -f $(docker ps -aq --no-trunc | check_age)
echo "cleaning images"
docker rmi $(docker images --no-trunc -q --filter "dangling=true")
TOO_OLD=$(echo "$(date +%s)-60*60*24*7" | bc)
docker rmi $(docker images -q --no-trunc | check_age | get_names)
exit 0