Monitor and restart unhealthy docker containers.
This functionality was proposed to be included with the addition of HEALTHCHECK, however didn't make the cut.
This container is a stand-in till there is native support for --exit-on-unhealthy moby/moby#22719.
docker run -d \
--name autoheal \
--restart=always \
-e AUTOHEAL_CONTAINER_LABEL=all \
-v /var/run/docker.sock:/var/run/docker.sock \
willfarrell/autoheala) Apply the label autoheal=true to your container to have it watched.
b) Set ENV AUTOHEAL_CONTAINER_LABEL=all to watch all running containers.
c) Set ENV AUTOHEAL_CONTAINER_LABEL to existing label name that has the value true.
Note: You must apply HEALTHCHECK to your docker images first. See https://docs.docker.com/engine/reference/builder/#healthcheck for details.
AUTOHEAL_CONTAINER_LABEL=autoheal
AUTOHEAL_INTERVAL=5 # check every 5 seconds
AUTOHEAL_START_PERIOD=0 # wait 0 seconds before first health check
AUTOHEAL_DEFAULT_STOP_TIMEOUT=10 # Docker waits max 10 seconds (the Docker default) for a container to stop before killing during restarts (container overridable via label, see below)
DOCKER_SOCK=/var/run/docker.sock # Unix socket for curl requests to Docker API
CURL_TIMEOUT=30 # --max-time seconds for curl requests to Docker API
autoheal.stop.timeout=20 # Per containers override for stop timeout seconds during restart
docker build -t autoheal .
docker run -d \
-e AUTOHEAL_CONTAINER_LABEL=all \
-v /var/run/docker.sock:/var/run/docker.sock \
autoheal 
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