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|
#!/bin/bash
set -e
usage ()
{
cat <<EOF
Options:
--cleanup-running-hours HOURS
--cleanup-stopped-hours HOURS
Cleanup running/stopped containers that have been created more
than HOURS ago. Setting HOURS to negative values will
run the cleanup in dry-run mode.
--cleanup-images true/false
Whether to cleanup untagged images
--cleanup-volumes true/false
Whether to cleanup dangling volumes
--verbose true/false
Whether to run in verbose mode
EOF
exit 1
}
cleanup_running_hours="-10"
cleanup_stopped_hours="-240"
cleanup_images=false
cleanup_volumes=false
verbose=false
while [ $# -gt 0 ]; do
case $1 in
--cleanup-running-hours) cleanup_running_hours="$2"; shift ;;
--cleanup-stopped-hours) cleanup_stopped_hours="$2"; shift ;;
--cleanup-images) cleanup_images="$2"; shift ;;
--cleanup-volumes) cleanup_volumes="$2"; shift ;;
--verbose) verbose="$2"; shift ;;
*) echo "ERROR: Wrong option: $1"; usage ;;
esac
shift
done
if $verbose; then
set -x
fi
DOCKER="docker"
do_cleanup_containers ()
{
local hours="$1"
local docker_ps_opts="$2"
local action="$3"
local cleanup_containers=true
if [ "$hours" -lt "0" ]; then
hours="$((0-$hours))"
cleanup_containers=false
fi
echo "Container report before:"
$DOCKER ps $docker_ps_opts
rm_containers=()
for container in $($DOCKER ps --format "{{.ID}} {{.RunningFor}}" $docker_ps_opts | grep "hour\|day" | cut -d" " -f 1); do
container_days="$($DOCKER ps --format "{{.ID}} {{.RunningFor}}" $docker_ps_opts | grep "$container [0-9]\+ day" | cut -d" " -f 2)"
if [ x"$container_days" = x"" ]; then container_days="0"; fi
container_hours="$($DOCKER ps --format "{{.ID}} {{.RunningFor}}" $docker_ps_opts | grep "$container [0-9]\+ hour" | cut -d" " -f 2)"
if [ x"$container_hours" = x"" ]; then container_hours="0"; fi
container_hours=$(($container_days*24 + $container_hours))
if [ "$container_hours" -gt "$hours" ]; then
rm_containers=("${rm_containers[@]}" $container)
fi
done
status="0"
if [ ${#rm_containers[@]} != 0 ]; then
echo "Removing containers: ${rm_containers[@]}"
echo "Increasing exit code by 1 to indicate stale containers"
status="$(($status+1))"
if $cleanup_containers; then
for container in "${rm_containers[@]}"; do
echo "Removing container $container"
$DOCKER $action $container | cat
echo "$DOCKER $action exit status: ${PIPESTATUS[0]}"
done
else
echo "DRY_RUN: NOT REMOVING CONTAINERS"
fi
echo "Containers report after:"
$DOCKER ps $docker_ps_opts
fi
exit $status
}
res="0"
do_cleanup_containers $cleanup_running_hours "" "stop" &
wait $! || res=$?
status=$(($status+$res))
res="0"
do_cleanup_containers $cleanup_stopped_hours "-a" "rm -fv" &
wait $! || res=$?
status=$(($status+$res))
if [ x"$($DOCKER volume ls -q -f dangling=true)" != x"" ]; then
echo "Removing dangling volumes"
echo "Increasing exit code by 2 to indicate dangling volumes"
status="$(($status+2))"
if $cleanup_volumes; then
$DOCKER volume ls -q -f dangling=true | xargs $DOCKER volume rm | cat
echo "xargs $DOCKER volume rm exit status: ${PIPESTATUS[1]}"
else
echo "DRY_RUN: NOT REMOVING DANGLING VOLUMES"
fi
fi
rm_images=()
for image in $($DOCKER images -q -f dangling=true); do
if ! $DOCKER ps -a --format "{{.Image}}" | grep -q $image; then
rm_images=("${rm_images[@]}" $image)
fi
done
if [ ${#rm_images[@]} != 0 ]; then
echo "Removing unused images"
echo "Increasing exit code by 4 to indicate unused images"
status="$(($status+4))"
if $cleanup_images; then
for image in "${rm_images[@]}"; do
$DOCKER rmi $image | cat
echo "$DOCKER rmi exit status: ${PIPESTATUS[0]}"
done
else
echo "DRY_RUN: NOT REMOVING UNTAGGED IMAGES"
fi
fi
exit $status
|
