Docker Container keeps on restarting again on again

Question

I today deployed an instance of MediaWiki using the appcontainers mediawiki docker image  and I now have a new problem for which I cannot find any clue  After trying to attach to the mediawiki front container using   docker attach mediawiki web 1   which answers Terminated on my configuration for a reason I ignore  trying also   docker exec -it mediawiki web 1 bash   I do get something close to an error message   Error response from daemon  Container 81c07e4a69519c785b12ce4512a8ec76a10231ecfb30522e714b0ae53a0c9c68 is restarting  wait until the container is running   And there is my new problem  because this container never stop restarting  I can see that using docker ps -a which always returns a STATUS of Restarting  127  x seconds ago   The thing is  I am able to stop the container  I tested  but starting it again seems to bring it back into its restarting loop   Any idea what could be the issue here   The whole thing was properly working until I tried to attach to it     I am sad  -

User · Answer

tl dr It is restarting with a status code of 127  meaning there is a missing file library in your container  Starting a fresh container just might fix it   Explanation     As far as my understanding of Docker goes  this is what is happening      Container tries to start up  In the process  it tries to access a file library which does not exist    It exits with a status code of 127  which is explained in this answer    Normally  this is where the container should have completely exited  but it restarts    It restarts because the restart policy must have been set to something other than no  the default    using either the command line flag --restart or the docker-compose yml key restart  while starting the container    Solution  Something might have corrupted your container  Starting a fresh container should ideally do the job

User · Answer

When docker kill CONTAINER ID does not work and docker stop -t 1 CONTAINER ID also does not work  you can try to delete the container   docker container rm CONTAINER ID   I had a similar issue today where containers were in a continuous restart loop   The issue in my case was related to me being a poor engineer    Anyway  I fixed the issue by deleting the container  fixing my code  and then rebuilding and running the container   Hope that this helps anyone stuck with this issue in future

User · Answer

Check the partition where you have installed docker  In most cases  the partition is at 100  capacity so you may need to look into that

User · Answer

try running docker stop CONTAINER ID   amp  docker rm -v CONTAINER ID  Thanks

User · Answer

First check the logs why the container failed  Because your restart policy might bring your container back to running status  Better to fix the issue  Then probably you can build a new image with without fix  Later execute below command  docker system prune  https   forums docker com t docker-registry-in-restarting-1-status-forever 12717 3

User · Answer

I had forgot Minikube running in background and thats what always restarted them back up

User · Answer

In my case i removed Restart always added tty  true  And executed the below command to open shell  daemon process  because docker reads the compose file and stops the container once it reaches the last line of the file   docker-compose up -d

User · Answer

The docker logs command will show you the output a container is generating when you don t run it interactively  This is likely to include the error message    docker logs --tail 50 --follow --timestamps mediawiki web 1   You can also run a fresh container in the foreground with docker run -ti  lt your wiki image gt  to see what that does  You may need to map some config from your docker-compose yml to the docker command    I would guess that attaching to the media wiki process caused a crash which has corrupted something in your data

User · Answer

From personal experience it sounds like there is a problem within your docker container that is not allowing it to restart  So some process within the container is causing the restart to hang or some process is causing the container to crash on start   When you start the container make sure you start it detached  -d  if you are going to attach to it   ex   docker run -d mediawiki web 1

User · Answer

In my case nginx container was keep on restarting   I checked logs of nginx container and came to know  crt and  key file of a unrequired domain are having errors   so I removed respective  conf file    crt and  key and then restarted nginx   That s it nginx is working fine without restarting

User · Answer

This could also be the case if you have created a systemd service that has    Service  Restart always ExecStart  usr bin docker container start -a my container ExecStop  usr bin docker container stop -t 2 my container

User · Answer

Try adding these params to your docker yml file  restart   no    restart  always   restart  on-failure   restart  unless-stopped   environment      POSTGRES DB   db name      POSTGRES HOST AUTH METHOD   trust    Final file should look something like this  postgres    restart   no    restart  always   restart  on-failure   restart  unless-stopped   image  postgres latest   volumes      -  data postgresql  var lib postgresql   ports      -  5432 5432    environment      POSTGRES DB   db name      POSTGRES HOST AUTH METHOD   trust

[docker] Docker: Container keeps on restarting again on again

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