feat: add emergency cgroup cleanup script

This commit is contained in:
Stefan Reimer 2022-12-05 15:29:06 +00:00
parent 7f8028a533
commit 731fd6674c
1 changed files with 32 additions and 0 deletions

32
scripts/gc_cgroups.sh Executable file
View File

@ -0,0 +1,32 @@
#!/bin/bash
#set -x
POD_IDS=($(crictl pods -q))
POD_UIDS=()
for POD_ID in ${POD_IDS[@]}; do
JSONDUMP="`crictl inspectp ${POD_ID}`"
POD_NAME="`echo ${JSONDUMP} | jq -r '.status.metadata.name'`"
POD_UID="`echo ${JSONDUMP} | jq -r '.info.runtimeSpec.annotations."io.kubernetes.pod.uid"'`"
POD_UIDS+=($POD_UID)
done
# echo ${POD_UIDS[*]}
CGROUPS=($(find /sys/fs/cgroup/pids/kubepods/*/pod* -type d -depth))
CGROUPS+=($(find /sys/fs/cgroup/kubepods/*/pod* -type d -depth))
DELETED=0
for cg in ${CGROUPS[*]}; do
valid=0
for uid in ${POD_UIDS[*]}; do
echo $cg | grep -q $uid && { valid=1; break; }
done
if [ $valid -eq 0 ]; then
rmdir $cg
((DELETED=DELETED+1))
fi
done
echo "Removed $DELETED left over cgroup folders."