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Handle inspect failed containers #177

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Handle inspect failed containers #177

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14 changes: 14 additions & 0 deletions docker-gc
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Original file line number Diff line number Diff line change
Expand Up @@ -45,6 +45,7 @@ set -o errexit
GRACE_PERIOD_SECONDS=${GRACE_PERIOD_SECONDS:=3600}
MINIMUM_IMAGES_TO_SAVE=${MINIMUM_IMAGES_TO_SAVE:=0}
STATE_DIR=${STATE_DIR:=/var/lib/docker-gc}
ERROR_CONTAINER_REMOVAL=${ERROR_CONTAINER_REMOVAL:=0}
FORCE_CONTAINER_REMOVAL=${FORCE_CONTAINER_REMOVAL:=0}
FORCE_IMAGE_REMOVAL=${FORCE_IMAGE_REMOVAL:=0}
DOCKER=${DOCKER:=docker}
Expand Down Expand Up @@ -222,6 +223,19 @@ container_log "Container not running" containers.exited
> containers.reap.tmp
cat containers.exited | while read line
do
# Handle inspect failed containers
# Sometimes 'docker inspect' will get error like 'Error response from daemon: devmapper: Unknown device xxxx'
INSPECT_RESULT_LINES=$(${DOCKER} inspect ${line} | wc -l)
if [[ $INSPECT_RESULT_LINES -lt 5 ]]; then
if [[ $ERROR_CONTAINER_REMOVAL -gt 0 ]]; then
log "Error, Execute 'docker inspect' failed on container ${line}, this container will be removed"
echo $line >> containers.reap.tmp
else
log "Error, Execute 'docker inspect' failed on container ${line}, skip.(Set ERROR_CONTAINER_REMOVAL=1 to delete)"
fi
continue
fi

EXITED=$(${DOCKER} inspect -f "{{json .State.FinishedAt}}" ${line})
ELAPSED=$(elapsed_time $EXITED)
if [[ $ELAPSED -gt $GRACE_PERIOD_SECONDS ]]; then
Expand Down