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https://issues.apache.org/jira/browse/MESOS-3413?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15074209#comment-15074209
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Jie Yu commented on MESOS-3413:
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The key reason we don't support persistent volumes in DockerContainerizer is
because when a container has been launched, we don't have a way to update
volumes (imaging a new task is sent to the executor with some persistent
volumes). Just updating symlinks is not going to work unless you bind mount
'/var/lib/mesos/volumes' into the container (which is not a very secure way to
do).
> Docker containerizer does not symlink persistent volumes into sandbox
> ---------------------------------------------------------------------
>
> Key: MESOS-3413
> URL: https://issues.apache.org/jira/browse/MESOS-3413
> Project: Mesos
> Issue Type: Bug
> Components: containerization, docker, slave
> Affects Versions: 0.23.0
> Reporter: Max Neunhöffer
> Assignee: haosdent
> Original Estimate: 1h
> Remaining Estimate: 1h
>
> For the ArangoDB framework I am trying to use the persistent primitives.
> nearly all is working, but I am missing a crucial piece at the end: I have
> successfully created a persistent disk resource and have set the persistence
> and volume information in the DiskInfo message. However, I do not see any way
> to find out what directory on the host the mesos slave has reserved for us. I
> know it is ${MESOS_SLAVE_WORKDIR}/volumes/roles/<myRole>/<NAME>_<UUID> but we
> have no way to query this information anywhere. The docker containerizer does
> not automatically mount this directory into our docker container, or symlinks
> it into our sandbox. Therefore, I have essentially no access to it. Note that
> the mesos containerizer (which I cannot use for other reasons) seems to
> create a symlink in the sandbox to the actual path for the persistent volume.
> With that, I could mount the volume into our docker container and all would
> be well.
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