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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 -H :2375"
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 $docker_ps_opts
local -a rm_containers=()
local curdate=$(date +%s)
for container in $($DOCKER ps $docker_ps_opts --format "{{.ID}}"); do
local container_date container_seconds
container_date=$(date +%s --date="$($DOCKER inspect --format "{{.Created}}" $container)")
container_seconds=$((curdate-container_date))
if [ "$(($container_seconds/3600))" -gt "$hours" ]; then
rm_containers=("${rm_containers[@]}" $container)
fi
done
local res
local status="0"
if [ ${#rm_containers[@]} != 0 ]; then
echo "Removing containers: ${rm_containers[@]}"
if $cleanup_containers; then
for container in "${rm_containers[@]}"; do
echo "Removing container $container"
$DOCKER $action $container &
res=0; wait $! || res=$?
if [ $res != 0 ]; then
echo "WARNING: $DOCKER $action $container -- exit status: $res"
status="1"
fi
done
else
echo "DRY_RUN: NOT REMOVING CONTAINERS"
echo "Increasing exit code to indicate stale containers"
status="1"
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=$res
res="0"
do_cleanup_containers $cleanup_stopped_hours "-a" "rm -fv" &
wait $! || res=$?
status=$(($status|(2*$res)))
if [ x"$($DOCKER volume ls -q -f dangling=true)" != x"" ]; then
echo "Removing dangling volumes"
if $cleanup_volumes; then
for volume in $($DOCKER volume ls -q -f dangling=true); do
$DOCKER volume rm $volume &
res=0; wait $! || res=$?
if [ $res != 0 ]; then
echo "WARNING: $DOCKER volume rm $volume -- exit status: $res"
status=$(($status|4))
fi
done
else
echo "Increasing exit code to indicate dangling volumes"
status=$(($status|4))
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"
if $cleanup_images; then
for image in "${rm_images[@]}"; do
$DOCKER rmi $image &
res=0; wait $! || res=$?
if [ $res != 0 ]; then
echo "WARNING: $DOCKER rmi $image -- exit status: $res"
status=$(($status|8))
fi
done
else
echo "Increasing exit code to indicate unused images"
status=$(($status|8))
echo "DRY_RUN: NOT REMOVING UNTAGGED IMAGES"
fi
fi
exit $status
|
