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From "Eric Badger (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-8927) Support trust top-level image like "centos" when "library" is configured in "docker.trusted.registries"
Date Thu, 14 Feb 2019 16:23:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-8927?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16768482#comment-16768482
] 

Eric Badger commented on YARN-8927:
-----------------------------------

{quote}
Chandni Singh is solving the docker image localization issues in YARN-9228. It may help to
solve precheck of image existence in her story instead.
{quote}
I'm fine with moving this to another JIRA. I just don't want to preclude an environment where
only local images are allowed. And doing the determination of whether an image is local or
not based on the existence of a "/" character doesn't do that, since local images are perfectly
allowed to contain the "/" character in their tag. 

I don't want to hold up this feature either, however. So maybe it's best to diverge into 2
different paths here. Keep this JIRA alive to deal only with the library keyword and have
the library keyword only associated with dockerhub images. Then in another JIRA add a different
keyword for local images. Because using the library keyword for local images in this state
would not work out. I really don't like the idea of another keyword, since I hate making arbitrary
special keywords, but I don't see another way around the issue here. 

> Support trust top-level image like "centos" when "library" is configured in "docker.trusted.registries"
> -------------------------------------------------------------------------------------------------------
>
>                 Key: YARN-8927
>                 URL: https://issues.apache.org/jira/browse/YARN-8927
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Zhankun Tang
>            Assignee: Zhankun Tang
>            Priority: Major
>              Labels: Docker
>         Attachments: YARN-8927-trunk.001.patch, YARN-8927-trunk.002.patch
>
>
> There are some missing cases that we need to catch when handling "docker.trusted.registries".
> The container-executor.cfg configuration is as follows:
> {code:java}
> docker.trusted.registries=tangzhankun,ubuntu,centos{code}
> It works if run DistrubutedShell with "tangzhankun/tensorflow"
> {code:java}
> "yarn ... -shell_env YARN_CONTAINER_RUNTIME_TYPE=docker -shell_env YARN_CONTAINER_RUNTIME_DOCKER_IMAGE=tangzhankun/tensorflow
> {code}
> But run a DistrubutedShell job with "centos", "centos[:tagName]", "ubuntu" and "ubuntu[:tagName]"
fails:
> The error message is like:
> {code:java}
> "image: centos is not trusted"
> {code}
> We need better handling the above cases.



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