Difference between revisions of "Docker start configuration behavior and restart policy"
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↑ https://stackoverflow.com/questions/43108227/is-it-possible-to-show-the-restart-policy-of-a-running-docker-container
↑ https://docs.docker.com/engine/reference/commandline/update/
↑ docker update --restart=always 90bf248337dc
(Created page with "To configure the '''start configuration behavior or the restart policy''' for a container (both of them), use the <code>--restart</code> flag when using the <code>docker run</...") |
m (Ant moved page Start configuration behavior and restart policy to Docker start configuration behavior and restart policy) |
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The following example starts a Redis container and configures it to always restart unless it is explicitly stopped or Docker is restarted: | The following example starts a Redis container and configures it to always restart unless it is explicitly stopped or Docker is restarted: | ||
| − | <code>$ docker run -dit --restart '''unless-stopped''' redis</code> | + | <code>$ [[docker run]] -dit --restart '''unless-stopped''' redis</code> |
With <code>[[docker inspect]] CONTAINER</code><ref>https://stackoverflow.com/questions/43108227/is-it-possible-to-show-the-restart-policy-of-a-running-docker-container</ref> you can verify <code>RestartPolicy</code> configuration. | With <code>[[docker inspect]] CONTAINER</code><ref>https://stackoverflow.com/questions/43108227/is-it-possible-to-show-the-restart-policy-of-a-running-docker-container</ref> you can verify <code>RestartPolicy</code> configuration. | ||
To update restart policy execute: | To update restart policy execute: | ||
| − | :<code>[[ | + | :<code>[[docker update]]</code><ref>https://docs.docker.com/engine/reference/commandline/update/</ref> <code>--restart=always CONTAINER_ID|CONTAINER_NAME</code><ref>docker update --restart=always 90bf248337dc</ref> |
:If the container is started with “--rm” flag, you cannot update the restart policy for it. The AutoRemove and RestartPolicy are mutually exclusive for the container. | :If the container is started with “--rm” flag, you cannot update the restart policy for it. The AutoRemove and RestartPolicy are mutually exclusive for the container. | ||
| + | <pre> | ||
| + | docker inspect -f "{{ .HostConfig.RestartPolicy }}" CONTAINER_NAME | ||
| + | |||
| + | docker update --restart=no $(docker container ls -aq) | ||
| + | |||
| + | docker inspect -f "{{ .HostConfig.RestartPolicy}}" $(docker ps -a -q) | ||
| + | </pre> | ||
| + | |||
| + | == Related commands == | ||
| + | * <code>[[docker inspect]]</code> | ||
| + | * <code>[[docker-compose.yml]]</code> | ||
| + | * [[HEALTHCHECK]] | ||
| + | * [[systemd]] and <code>[[service]]</code> | ||
| + | * <code>[[docker ps]]</code> | ||
| + | * <code>[[docker start]]</code> | ||
| + | * <code>/var/lib/docker/containers/[hash_of_the_container]/[[hostconfig.json]]</code> | ||
| + | * <code>[[virsh autostart]]</code> | ||
== See also == | == See also == | ||
| − | * [[docker inspect]] | + | * <code>[[docker inspect]]</code> |
*{{Docker}} | *{{Docker}} | ||
| + | * {{service}} | ||
[[Category:Docker]] | [[Category:Docker]] | ||
| − | [[Category: | + | [[Category:DevOps]] |
Latest revision as of 10:52, 26 December 2022
To configure the start configuration behavior or the restart policy for a container (both of them), use the --restart flag when using the docker run command. The value of the --restart flag can be any of the following:
- Do not automatically restart the container. (the default):
no - Restart the container if it exits due to an error, which manifests as a non-zero exit code:
on-failure - Restart the container unless it is explicitly stopped or Docker itself is stopped or restarted:
unless-stopped - Always restart the container if it stops:
always
The following example starts a Redis container and configures it to always restart unless it is explicitly stopped or Docker is restarted:
$ docker run -dit --restart unless-stopped redis
With docker inspect CONTAINER[1] you can verify RestartPolicy configuration.
To update restart policy execute:
docker update[2]--restart=always CONTAINER_ID|CONTAINER_NAME[3]- If the container is started with “--rm” flag, you cannot update the restart policy for it. The AutoRemove and RestartPolicy are mutually exclusive for the container.
docker inspect -f "{{ .HostConfig.RestartPolicy }}" CONTAINER_NAME
docker update --restart=no $(docker container ls -aq)
docker inspect -f "{{ .HostConfig.RestartPolicy}}" $(docker ps -a -q)
Related commands[edit]
docker inspectdocker-compose.yml- HEALTHCHECK
- systemd and
service docker psdocker start/var/lib/docker/containers/[hash_of_the_container]/hostconfig.jsonvirsh autostart
See also[edit]
docker inspect- Docker:
docker-compose, Docker Desktop, Docker Scout, Docker Swarm, Docker Volumes, Docker images management, docker network,docker inspect,docker volume inspect,Dockerfile, Docker Engine release notes,docker kill,moby, Docker-in-Docker,docker context,buildx,docker tag,docker system prune, Docker Hub,hub-tool, /etc/docker/daemon.json,hostconfig.json, dockerd, logs, Docker logging, Backup,docker service,depends on,--dns, --filter,--mount,docker login,docker build,apt remove docker.io,.dockerignore, docker context ls |docker-machine, .docker/, PWD,$HOME/.docker/config.json, Docker ID,--env-file, docker --help service,service --status-all, /etc/inittab, service ssh restart
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