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Posted to issues@mesos.apache.org by "Jake Farrell (JIRA)" <ji...@apache.org> on 2015/05/13 05:11:59 UTC
[jira] [Updated] (MESOS-2544) mesos containerizer should allow for
container images to specify dependent layers
[ https://issues.apache.org/jira/browse/MESOS-2544?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jake Farrell updated MESOS-2544:
--------------------------------
Issue Type: Bug (was: Sub-task)
Parent: (was: MESOS-2540)
> mesos containerizer should allow for container images to specify dependent layers
> ---------------------------------------------------------------------------------
>
> Key: MESOS-2544
> URL: https://issues.apache.org/jira/browse/MESOS-2544
> Project: Mesos
> Issue Type: Bug
> Components: containerization
> Reporter: Jay Buffington
>
> In order to get better cache-hit rates we should allow for stacked container image layers. The image archive format is the format the image is hosted in. Examples include docker image format [1] and ACI [2]. Whatever the archive format, it needs to allow for referencing dependent layers.
> The mesos slave needs to pull down the image and its dependent layers and convert it to a image runtime format. This format could be hard links, overlayfs[3] or take advantage of device mapper or btrfs features.
> [1] https://github.com/docker/docker/blob/master/image/spec/v1.md
> [2] https://github.com/appc/spec/blob/master/SPEC.md#app-container-image
> [3] https://www.kernel.org/doc/Documentation/filesystems/overlayfs.txt
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