[jbossts-issues] [JBoss JIRA] (JBTM-3019) Testsuite: Docker controller leaves stray volumes and fills up disk space unnecessairly over time

[Ondra Chaloupka (Jira)]

     [ https://issues.jboss.org/browse/JBTM-3019?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ondra Chaloupka updated JBTM-3019:
----------------------------------
    Fix Version/s: 5.next
                       (was: 5.9.2.Final)


> Testsuite: Docker controller leaves stray volumes and fills up disk space unnecessairly over time
> -------------------------------------------------------------------------------------------------
>
>                 Key: JBTM-3019
>                 URL: https://issues.jboss.org/browse/JBTM-3019
>             Project: JBoss Transaction Manager
>          Issue Type: Bug
>          Components: Testing
>    Affects Versions: 5.8.1.Final
>         Environment: Docker enabled Jenkins slaves
>            Reporter: Michal Karm Babacek
>            Assignee: Michal Karm Babacek
>            Priority: Minor
>             Fix For: 5.next
>
>
> h3. Problem
> The Docker controller that allocates databases as Docker containers cleans up containers and does not leave unnecessary images:
> {code}
> [root at karm-centos7-x86-64 ~]# docker images
> REPOSITORY           TAG                 IMAGE ID            CREATED             SIZE
> docker.io/postgres   9.4                 26bd9b04b948        6 days ago          232 MB
> docker.io/postgres   10                  0965cdc98045        6 days ago          234 MB
> docker.io/postgres   <none>              ed5db6e669ff        7 weeks ago         263 MB
> docker.io/postgres   <none>              30121e967865        7 weeks ago         289 MB
> [root at karm-centos7-x86-64 ~]# docker ps -a
> CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES
> [root at karm-centos7-x86-64 ~]# 
> {code}
> Although it leaves stray container volumes for some reason:
> {code}
> [root at karm-centos7-x86-64 ~]# du -hs /var/lib/docker-latest/volumes
> 15G	/var/lib/docker-latest/volumes
> [root at karm-centos7-x86-64 ~]# docker volume ls -qf dangling=true | wc -l
> 409
> {code}
> It unnecessarily clogs the slaves' disk space. The 15G of garbage has been created over dozens and dozens of builds with at least two containers each, but it shouldn't be happening anyway.
> h3. Call to action
> Review whether [removeContainerCmd|https://github.com/jbosstm/narayana/blob/master/tools/src/main/java/io/narayana/db/PostgreContainerAllocator.java#L264] is supposed to be enough to not only remove the container but to also remove its volume.
> h3. Workaround
> {code}
> docker volume prune
> {code}



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