I use Docker for development a HW-SW system where restarts and power losses happen very often. I'd like to find away to ignore/destroy all containers that were running at the time of shutdown and start Docker from the scratch (using docker-compose).
--force-recreate option of docker-compose, which seemed applicable - has some issues, such as "stuck" "old" port mappings preventing a new container instances from being run.
You can use
docker system prune
to remove unused images, containers and networks. That should help remove the old port mappings.
Typically you can start the container with --rm flag, so it will remove container once it stops or system shutdown.
But I did not found a similar flag for docker-compose, you can try the below but it will work manually not on shutdown or reboot
Usage: rm [options] [SERVICE...]
Options:
-f, --force Don't ask to confirm removal
-s, --stop Stop the containers, if required, before removing
-v Remove any anonymous volumes attached to containers
docker-comose rm
So the workaround is to run cron job on bootup and remove all container.
remove_container.sh.
#!/bin/bash
# put sleep so the docker process ready
sleep 90
# remove all container
docker rm -f $(docker ps -aq)
cronjob
#reboot (sh /home/user/remove_container.sh)
You can add a similar option for window etc, the above one tested on Ubuntu distribution.
Related
I am trying to remove container but when i run docker-compose rm ,runs fine but when i run docker ps then again it shows container:
root#datafinance:/tmp# docker-compose rm
Going to remove tmp_zookeeper_1_31dd890a1cbf
Are you sure? [yN] y
Removing tmp_zookeeper_1_31dd890a1cbf ... done
root#datafinance:/tmp# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
03b08e4ef0b3 confluentinc/cp-zookeeper:latest "/etc/confluent/dock…" 14 hours ago Up 14 hours docker_c_zookeeper_1_7c953dce7d69
Use docker-compose ps, it will show the container which only launched by docker-compose up. If it shows there is no container, then this means this container was not launched by this docker-compose.yaml.
And Error starting userland proxy: listen tcp 0.0.0.0:32181: bind: address already in use' means the port 32181 is occupied either by other docker container or other process. You could use docker rm -f $(docker ps -qa) to delete all containers or more you can use netstat -oanltp | grep 32181 to find which process really occupy 32181.
Finally, if for any reason you did not able to delete container as you said, you can just use service docker restart or systemctl restart docker to make all container down. Then repeat above docker rm xxx.
With above steps, you can use docker compose up -d to use your service now.
try this :
docker rm -f 03b08e4ef0b3
DANGER
you may also try this, but be aware that will delete everything (Containers, Images, Networks, ....)
docker system prune -a -f
when all not helped your last resort is to restart Docker daemon
service docker restart
and then repeat the steps...
I think what you are looking for is :
docker-compose down
which removes the containers after stopping them according to this.
According to this, docker-compose rm removes the "stopped" containers. If your container(s) are running, I think it won't remove to prevent accidents.
When I launch docker, it launch by default a few containers that I have build in the past.(I've use docker-compose at the time, but deleted the repo since)
I kill them, but each time i restart docker, they are back.
What can I do ?
I know there is something like "docker system prune",
but I would like to delete the less possible .
You can try running docker ps -a to get a list of all containers including the ones which are not running but stopped.
You can then docker rm each container you do not wish to start on each docker restart.
Use docker ps to see what containers are running.
Use this command to kill/stop all running containers.
docker rm $(docker ps -a -q)
Use docker images to get list of all images.
Use docker rmi <image_id> to delete desired image.
I have tried
docker kill name_of_the_process
But the error is
Error response from daemon: Cannot kill container: name_of_the_container: Container name_of_the_container is not running
There are a lot of processes when I run docker ps -a, how do I kill those, they are stopped but not killed
A stopped container is killed. There is no running process, but there is a writable container specific filesystem and some metadata remaining which allows you to debug the stopped container and restart it. To remove that, use docker container rm (or the former alias docker rm) to remove the stopped container data. e.g.
docker container ls -aqf status=exited | xargs docker container rm
docker ps Shows you the running containers. If you add the -a flag it will print out all the containers, even the ones not running.
You can not "stop" a non-running container, it is already stopped.
You can find more information here: https://docs.docker.com/engine/reference/commandline/ps/
If you wish to remove the container, you can remove it by id or name. The command for that is docker rm <id/name>
Tip: You can use the first few chars of the id to identify the container, you don't need the whole id
The docker daemon isn't starting anymore on my computer (Linux / Centos 7), and I strongly suspect that a container that is set to auto-restart is to blame in this case. If I start the daemon manually, the last line I see is "Loading containers: start", and then it just hangs.
What I'd like to do is to start the daemon without starting any containers. But I can't find any option to do that. Is there any option in docker to start the daemon without also starting containers set to automatically restart? If not, is there a way to remove the containers manually that doesn't require the docker daemon running?
I wrote this little script to stop all the containers before docker is started. It requires to have jq installed.
for i in /var/lib/docker/containers/*/config.v2.json; do
touch "$i.new" && getfacl -p "$i" | setfacl --set-file=- "$i.new"
cat "$i" | jq -c '.State.Running = false' > "$i.new" && mv -f "$i.new" "$i"
done
I think we need to verify the storage driver for docker that you are using. Devicemapper is known to have some issues similar to what you are describing. I would suggest moving to overlay2 as a storage driver.
If you are not running this on a prod system, you can try to do below steps to see if the daemon is coming up or not,
Stop the daemon process
Clean the docker home directory, default is /var/lib/docker/*
You may not be able to remove everything, in that case safe bet is to stop docker from autostart ,systemctl disable docker and restart the system
Once system is up, execute step-2 again and try to restart the daemon. Hopefully everything will come up.
I run some containers with the option --restart always.
It works good, so good, that I have now difficulties to stop these containers now :)
I tried :
sudo docker stop container && sudo docker rm -f container
But the container still restarts.
The docker documentation explains the restart policies, but I didn't find anything to resolve this issue.
Just
sudo docker rm -f container
will kill the process if it is running and remove the container, in one step.
That said, I couldn't replicate the symptoms you described. If I run with --restart=always, docker stop will stop the process and it remains stopped.
I am using Docker version 1.3.1.
docker update --restart=no <container>
Many thanks for those who takes time to respond.
If you use docker directly, Bryan is right sudo docker rm -f container is enough.
My problem was mainly that I use puppet to deploy docker images and run containers. I use this module and it creates entries in /etc/init for the upstart process manager.
I think, my problem whas that, some kind of incompatibilities between the process manager and docker.
In this situation, to halt a container, simply sudo stop docker-container.
More informations on managing docker container run can be found on the docker website