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kubernetes/cluster/saltbase/salt/supervisor/docker-checker.sh
2016-03-31 10:07:37 -07:00

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#!/bin/bash
# Copyright 2015 The Kubernetes Authors All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# This script is intended to start the docker and then loop until
# it detects a failure. It then exits, and supervisord restarts it
# which in turn restarts docker.
/etc/init.d/docker stop
# Make sure docker gracefully terminated before start again
starttime=`date +%s`
while pidof docker > /dev/null; do
currenttime=`date +%s`
((elapsedtime = currenttime - starttime))
# after 60 seconds, forcefully terminate docker process
if test $elapsedtime -gt 60; then
echo "attempting to kill docker process with sigkill signal"
kill -9 `pidof docker` || sleep 10
else
echo "waiting clean shutdown"
sleep 10
fi
done
echo "docker is not running. starting docker"
# cleanup docker network checkpoint to avoid running into known issue
# of docker (https://github.com/docker/docker/issues/18283)
rm -rf /var/lib/docker/network
/etc/init.d/docker start
echo "waiting 30s for startup"
sleep 30
while true; do
if ! timeout 60 docker ps > /dev/null; then
echo "Docker failed!"
exit 2
fi
sleep 10
done