[jira] [Comment Edited] (MESOS-4944) Improve overlay backend so that it's writable

["Shuai Lin (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/MESOS-4944?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15194538#comment-15194538 ] 

Shuai Lin edited comment on MESOS-4944 at 3/15/16 2:01 AM:
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bq. We can use an empty directory from the container sandbox to act as the upper layer so that it's writable.

-With the same workaround we can also make overlay backend work for images which has only 1 layer. Currently using the overlay backend means giving up on using 1-layer images like alpine.-

This would also make overlay backend usable for 1-layer images like alpine.


was (Author: lins05):
bq. We can use an empty directory from the container sandbox to act as the upper layer so that it's writable.

With the same workaround we can also make overlay backend work for images which has only 1 layer. Currently using the overlay backend means giving up on using 1-layer images like alpine.

> Improve overlay backend so that it's writable
> ---------------------------------------------
>
>                 Key: MESOS-4944
>                 URL: https://issues.apache.org/jira/browse/MESOS-4944
>             Project: Mesos
>          Issue Type: Task
>            Reporter: Jie Yu
>            Assignee: Shuai Lin
>
> Currently, the overlay backend will provision a read-only FS. We can use an empty directory from the container sandbox to act as the upper layer so that it's writable.



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