Mike Babineau created MESOS-2374:
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Summary: Support relative hostPaths for container volumes
Key: MESOS-2374
URL: https://issues.apache.org/jira/browse/MESOS-2374
Project: Mesos
Issue Type: Improvement
Components: containerization, docker
Affects Versions: 0.21.1
Reporter: Mike Babineau
There is no convenient way to mount directories within the sandbox as container
volumes.
A common use case is injecting the contents of one or more fetched-URI
archives, each of which needs to be extracted and mounted inside the container.
While it is possible to access sandbox subdirectories via $MESOS_SANDBOX, this
presumes the container already knows the resulting subdirectory paths.
Unfortunately, since the archives are extracted by the fetcher, operators can
not control these paths. Path changes to the extracted archive must be
accompanied by a container image change. Furthermore, the container must be
aware of $MESOS_SANDBOX to be able to use the access these files at all.
One potential solution is to add support for relative paths to the
containerizer: if the containerizer is given a relative host path, it simply
prepends the sandbox path before passing it to Docker (or similar).
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