willfarrell/docker-autoheal
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Merge pull request #18 from Cyber1000/master

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Changed system to only one docker-api request, api-request now only g…
This commit is contained in:
will Farrell
2018-12-08 09:54:44 -07:00
committed by GitHub
parent 50fee7b01c b1fe537daa
commit acd100b124
1 changed files with 10 additions and 26 deletions
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docker-entrypoint
+10 -26
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@@ -2,7 +2,6 @@
set -e
DOCKER_SOCK=${DOCKER_SOCK:-/var/run/docker.sock}
TMP_DIR=/tmp/restart
CURL_TIMEOUT=${CURL_TIMEOUT:-30}
# SIGTERM-handler
@@ -18,19 +17,13 @@ trap 'kill ${!}; term_handler' SIGTERM
if [ "$1" = 'autoheal' ] && [ -e ${DOCKER_SOCK} ]; then
mkdir -p $TMP_DIR
# https://docs.docker.com/engine/api/v1.25/
# Set container selector
if [ "$AUTOHEAL_CONTAINER_LABEL" == "all" ]; then
selector() {
jq -r .[].Id
}
labelFilter=""
else
selector() {
jq -r '.[] | select(.Labels["'${AUTOHEAL_CONTAINER_LABEL:=autoheal}'"] == "true") | .Id'
}
labelFilter=",\"label\":\[\"${AUTOHEAL_CONTAINER_LABEL:=autoheal}=true\"\]"
fi
echo "Monitoring containers for unhealthy status in ${AUTOHEAL_START_PERIOD} second(s)"
@@ -38,26 +31,17 @@ if [ "$1" = 'autoheal' ] && [ -e ${DOCKER_SOCK} ]; then
while true; do
sleep ${AUTOHEAL_INTERVAL:=5}
CONTAINERS=$(docker_curl -XGET http://localhost/containers/json | selector)
for CONTAINER in $CONTAINERS; do
HEALTH=$(docker_curl -XGET http://localhost/containers/${CONTAINER}/json | jq -r .State.Health.Status)
if [ "unhealthy" = "$HEALTH" ]; then
apiUrl="http://localhost/containers/json?filters=\{\"health\":\[\"unhealthy\"\]${labelFilter}\}"
docker_curl "$apiUrl" | jq -r 'foreach .[] as $CONTAINER([];[]; $CONTAINER | .Id, .Names[0])' | \
while read -r CONTAINER_ID && read -r CONTAINER_NAME; do
CONTAINER_SHORT_ID=${CONTAINER_ID:0:12}
DATE=$(date +%d-%m-%Y" "%H:%M:%S)
CONTAINER_NAME=$(docker_curl -XGET http://localhost/containers/${CONTAINER}/json | jq -r .Name)
echo "$DATE Container ${CONTAINER_NAME} (${CONTAINER:0:12}) found to be unhealthy"
touch "$TMP_DIR/$CONTAINER"
fi
done
for CONTAINER in `ls $TMP_DIR`; do
DATE=$(date +%d-%m-%Y" "%H:%M:%S)
CONTAINER_NAME=$(docker_curl -XGET http://localhost/containers/${CONTAINER}/json | jq -r .Name)
if [ "null" = "$CONTAINER_NAME" ]; then
echo "$DATE Delete container ${CONTAINER_NAME} (${CONTAINER:0:12}) from restart list because container name null implies container does not exist"
rm "$TMP_DIR/$CONTAINER"
echo "$DATE Container name of ($CONTAINER_SHORT_ID) is null, which implies container does not exist - don't restart"
else
echo "$DATE Restarting container ${CONTAINER_NAME} (${CONTAINER:0:12})"
docker_curl -f -XPOST http://localhost/containers/${CONTAINER}/restart && rm "$TMP_DIR/$CONTAINER" || echo "$DATE Restarting container ${CONTAINER:0:12} failed"
echo "$DATE Container ${CONTAINER_NAME} ($CONTAINER_SHORT_ID) found to be unhealthy - Restarting container now"
docker_curl -f -XPOST http://localhost/containers/${CONTAINER_ID}/restart || echo "$DATE Restarting container $CONTAINER_SHORT_ID failed"
fi
done
done