computer-playbook/roles/native-docker-health-check/files/docker-health-check.sh

#!/bin/sh
docker_ps_grep_unhealthy="$(docker ps --filter health=unhealthy --format '{{.Names}}')"
docker_ps_grep_exited="$(docker ps --filter status=exited --format '{{.Names}}')"
exitcode=0
if [ ! -z "$docker_ps_grep_unhealthy" ]
then 
   echo "Some docker containers are unhealthy: $docker_ps_grep_unhealthy"
   exitcode=1
fi
if [ ! -z "$docker_ps_grep_exited" ]
then 
   echo "Some docker containers exited: $docker_ps_grep_exited"
   exitcode=2
fi
if [ "$exitcode" -ne "0" ]
then 
   exit $exitcode
fi
echo "All docker containers are healthy."
exit