[jira] [Updated] (MESOS-5277) Need to add REMOVE semantics to the copy backend

["Gilbert Song (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MESOS-5277?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gilbert Song updated MESOS-5277:
--------------------------------
    Sprint: Mesosphere Sprint 35

> Need to add REMOVE semantics to the copy backend
> ------------------------------------------------
>
>                 Key: MESOS-5277
>                 URL: https://issues.apache.org/jira/browse/MESOS-5277
>             Project: Mesos
>          Issue Type: Bug
>          Components: containerization
>         Environment: linux
>            Reporter: Avinash Sridharan
>            Assignee: Gilbert Song
>              Labels: mesosphere
>             Fix For: 0.29.0
>
>
> Some Dockerfile run the `rm` command to remove files from the base image using the "RUN" directive in the Dockerfile. An example can be found here:
> https://github.com/ngineered/nginx-php-fpm.git
> In the final rootfs the removed files should not be present. Presence of these files in the final image can make the container misbehave. For example, the nginx-php-fpm docker image that is reference tries to remove the default nginx config and replace it with it own config to point a different HTML root. If the default nginx config is still present after the building the image, nginx will start pointing to a different HTML root than the one set in the Dockerfile.
> Currently the copy backend cannot handle removal of files from intermediate layers. This can cause issues with docker images built using a Dockerfile similar to the one listed here. Hence, we need to add REMOVE semantics to the copy backend.  



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