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https://issues.apache.org/jira/browse/MESOS-5211?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15240330#comment-15240330
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Cody Maloney commented on MESOS-5211:
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That's related purely to the unified containerizer.
It's a bug currently that mesos inspects docker containerizer docker image
names for a {{:}}, and if it isn't there, always forcibly appends {{:latest}}.
The bugfixing for the unified containerizer to not just check "has_tag" then
assume it should use latest definitely could be covered by MESOS-3505
> Allow docker puller to use docker image IDs in addition to tags
> ---------------------------------------------------------------
>
> Key: MESOS-5211
> URL: https://issues.apache.org/jira/browse/MESOS-5211
> Project: Mesos
> Issue Type: Bug
> Components: containerization, docker
> Affects Versions: 0.28.0
> Reporter: Cody Maloney
> Labels: containerizer, docker, mesosphere
>
> Docker added support for a {{@<digest>}} format instead of {{:<tag>}} in [1.6
> via pull 11109|https://github.com/docker/docker/pull/11109].
> The {{@<digest>}} is useful because it allows reference to specific set of
> bits, rather than a tag (such as {{:latest}}) which can change over time.
> Currently a number of code paths, such as the [Mesos Docker
> code|https://github.com/apache/mesos/blob/df29bf0338771c92d1b1d3848181a35429cdcf0f/src/docker/docker.cpp#L1070],
> the [Mesos Containerizer Docker
> Provisioner|https://github.com/apache/mesos/blob/df29bf0338771c92d1b1d3848181a35429cdcf0f/src/slave/containerizer/mesos/provisioner/docker/registry_puller.cpp#L206]
> do not support pulling / fetching docker containers by id.
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