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https://issues.apache.org/jira/browse/MESOS-3413?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14741150#comment-14741150
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Vaibhav Khanduja edited comment on MESOS-3413 at 9/11/15 5:12 PM:
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I see the code for docker.cpp it is mapping sandbox directory as volumes inside
the container. The value of the sandbox directory is coming in as environment
variables:"MESOS_SANDBOX"
......
argv.push_back("-e");
argv.push_back("MESOS_SANDBOX=" + mappedDirectory);
argv.push_back("-e");
argv.push_back("MESOS_CONTAINER_NAME=" + name);
.......
May be good idea to try this for now, though not a good solution ...
Docker bind mounts these volumes inside container ... a symlink to a directory
would be mounted but since it does chroot, the link may not be valid inside the
container ....
was (Author: vaibhavkhanduja):
I see the code for docker.cpp it is mapping sandbox directory as volumes inside
the container. The value of the sandbox directory is coming in as environment
variables:"MESOS_SANDBOX"
......
argv.push_back("-e");
argv.push_back("MESOS_SANDBOX=" + mappedDirectory);
argv.push_back("-e");
argv.push_back("MESOS_CONTAINER_NAME=" + name);
.......
May be good idea to try this for now, though not a good solution ...
> 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
> 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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