This question already has answers here:
Docker error cannot delete docker container, conflict: unable to remove repository reference
(12 answers)
Closed 4 months ago.
Error response from daemon: conflict: unable to delete 529072250ccc (cannot be forced) - image is being used by running container 5da200b36c1e
How I delete docker image ?
docker ps is Nothing.
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
But I can't delete image.
Commands I have tried
docker kill 5da200b36c1e
docker rmi -f 529072250ccc
After doing this, the image disappears once but comes back again.
Or sometimes the IMAGE does not disappear.
Check all available containers with docker ps -a and see whether the mentioned container with the ID is there. Have a look on its status.
You can try either removing it using docker rm 5da200b36c1e or kill it using docker kill 5da200b36c1e.
Once it is done, check whether the container is still listed with docker ps -a and if so check the status. You may try deleting the image again after this.
You have to stop the container first:
docker stop 5da200b36c1e
and then remove the image:
docker rmi -f 529072250ccc
Related
This question already has answers here:
Docker - Name is already in use by container
(21 answers)
Closed last year.
I'm trying to run postgres docker:
docker run --name some-postgres -e POSTGRES_PASSWORD=123456 -d postgres
I'm getting error message:
docker: Error response from daemon: Conflict. The container name "/some-postgres" is already in use by container "93b72872c89cf7497872b0bc0e98d5a91078666945e3ca39ce5cbb36c436b5af". You have to remove (or rename) that container to be able to reuse that name.
I checked with:
sudo docker ps
And there is nothing:
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
(Empty)
so, why I'm getting this error message ?
If the container name already exsits, How can I run it ?
Check this (shows all containers, includes stopped)
sudo docker ps -a
And then delete container
docker rm CONTAINER
Try running
docker ps -a you will see existing container name and remove that using docker rm some-postgres. and run the docker run command again.
I run a docker container from an image. Then I want to delete the container by docker rm <containerID> and restart it again. But I found the image is deleted as well!! But I didn't run the docker rmi <image> command at all. Why it is deleted automatically? I have to pull the image again and again to restart my container. Although I can use docker stop command to just stop a container so not to pull the same image again and again, but the question I posted is still wired, isn't it? Is there any one can help me, thanks!
Finally I figured out the problem by docker info. It shows that my two paras Deferred Removal Enabled and Deferred Deletion Enabled are all set false. The introduction of these two paras docker doc
My problem solved by:
$ sudo dockerd --storage-opt dm.use_deferred_deletion=false --storage-opt dm.use_deferred_removal=false
I made a docker container of my web application.
At the end of the docker build command, I saw (which I suppose means that image was made)
Successfully tagged App:30may2020
SECURITY WARNING: You are building a Docker image from Windows against a non-Windows Docker host. All files and directories added to build context will have '-rwxr-xr-x' permissions. It is recommended to double check and reset permissions for sensitive files and directories.
When I run the container, I get error
docker run --publish 9000:9000 --detach --name App App:30may2020
docker: Error response from daemon: Conflict. The container name "/App" is already in use by container "8a641431369c418e99ccb752161f5f2848d3c8f14bb903a18b6bd4aff2966af6". You have to remove (or rename) that container to be able to reuse that name.
Question 1 - Does build command also starts the container as I didn't start the container?
Question 2 - I did docker container ls and docker container ps but I don't see my container running. Then why do I get the error?
Answers to your questions:
Question 1 - Does build command also starts the container as I didn't start the container?
Answer => No, but the command which you mentioned is a run command which will start the container.
docker run --publish 9000:9000 --detach --name App App:30may2020
As you can see, docker run will start the container from the image App:30may2020.
Question 2 - I did docker container ls and docker container ps but I don't see my container running. Then why do I get the error?
Answer2 => As the error says, App container name is already used by another container. There are below 2 ways to solve this
Run docker rm App, which will remove the container named App and if you want to see this container running run docker ps -a, and you would be able to see the container.
Note:- If you encounter an error while deleting the container, please stop the container first by running docker stop App.
The second way, don't give --name option while running the container and let docker choose the random name.
If docker ps shows nothing, then you must already have a stopped container called App. When a container stops, it remains, so that it can be started again.
As commented above docker ps -a will show all containers both running and stopped.
To remove the stopped container, use docker rm App.
It's a good idea when manually running containers, especially whilst debugging (so you're going to stop and start many times) to use the --rm flag. This will ensure that the container is removed when it's stopped.
Question1 answer: build doesn't starts a container
Question 2 answer: ps and ls display the container which are currently running but not those containers which are stopped. Do docker ps -a Incase if you want to view stopped containers.
You are getting the error because you have already a container with the name '/App' try to run a container with a different name.
Or in case if you want to run container with same name but want to use from new build you should first stop and delete the container and you can run under a same name
when calling docker ps the list is empty, although I got an id:
(dcbb6aeaa06ba43fcb.....)
My steps:
Step 1: I created an image (imagekommando) of an running js.file:
Step 2: I created a container (in background) based on my image
docker run -d --name containerkommando imagekommando
I got an id! (container-id??)
Step 3: But docker ps shows empty list:
But when I repeat Step 2, I'm told, that the container (containerkommando) already exists:
docker run -d --name containerkommando imagekommando
Could you help me, understanding the logic behind?
And how can I get the container running (by ID)?
That means that the docker container exited with an error but clean up is required. With --rm option you can tell the docker to remove the container when the container has exited.
docker run --rm .....
Also to check the reason for the container exiting...you can use
docker logs <container_id>
What probably takes place here:
docker run ... creates and starts your container
your container exits
docker ps doesn't list stopped containers (default shows just running), so it made you think that it's not there.
docker run ... fails because you are trying to create and run a container with a name that already exists.
Further reading:
What are the possible states for a docker container?
Why docker container exits immediately
In Docker, a container is automatically exited when the task is finished. You have to specify a correct entrypoint to keep your docker container up.
You can check the exited containers with the command docker ps -a. This exited container will prevent you from using the name again.
So, you may want to use docker rm <container-name> before creating your new container. In a test environement, you can also use docker system prune to clean all unused container/networks.
docker ps only shows the active containers (the running ones).
Your container most probably exited right after you started it. You can use the container ID and do docker logs <container-id> to examine the reason why the container failed.
If you want to see the stopped containers together with the running containers you can do docker ps -a to get a list of all these.
Execute
docker logs <CONTAINER ID>
to view the logs of docker container run.
I faced a similar issue found out there was space issue win my docker. After clearing space the container was able to run.
I am unable to delete the docker images. Getting below error.
docker image rm -f $(docker image ls -aq)
Error response from daemon: conflict: unable to delete 6ab53ec1a8c9 (cannot be forced) - image is being used by running container d65f1c6b7982
Error response from daemon: conflict: unable to delete 2602b4852593 (cannot be forced) - image has dependent child images
Docker version:
docker --version
Docker version 17.05.0-ce, build 89658be
The problem
Error response from daemon: conflict: unable to delete 6ab53ec1a8c9 (cannot be forced) - image is being used by running container d65f1c6b798
As the message says you have a container running that uses the image your are trying to delete, thus the error.
You can stop the container and afterwards run the command again, but a better way exists...
A Better Way
docker image rm -f $(docker image ls -aq)
Instead of using the above hack from old days you can use now:
docker image prune -a
The flag -a will remove all unused docker images, meaning that the ones being used by running containers will not be touched, thus this may be what you want to use in order to achieve what your are trying to do.
If you want to only remove dangling images without removing the ones you already have built then run the same command without the -a flag:
docker image prune
The help for it:
docker image prune --help
Usage: docker image prune [OPTIONS]
Remove unused images
Options:
-a, --all Remove all unused images, not just dangling ones
--filter filter Provide filter values (e.g. 'until=<timestamp>')
-f, --force Do not prompt for confirmation
As suggested in this answer you may want to remove all child images, one by one, by running
docker rmi <repo:tag>
However, as suggested in the linked answer, in some cases you may not want to remove the image by specifying the image id that has multiple tags as these may be used by other images.