Re: Docker storage on Fedora 25?

Daniel J Walsh <dwalsh@xxxxxxxxxx> · Wed, 28 Dec 2016 05:58:28 -0500



    On 12/27/2016 10:55 AM, Dave Johansen
      wrote:

    
          On Tue, Dec 27, 2016 at 5:16 AM,
            Daniel J Walsh <dwalsh@xxxxxxxxxx> wrote:

            
                On 12/26/2016 08:39 PM, Matthew Miller wrote:

                > On Mon, Dec 26, 2016 at 12:37:46PM -0700, Dave
                Johansen wrote:

                >> http://www.projectatomic.io/blog/2015/06/notes-on-fedora-centos-and-docker-storage-drivers/

                >> Does the above recommendation still hold true
                with Fedora 25/Docker 1.12.5?

                >> If so, is the configuration the same?

                > Quick glance, yeah, looks still basically right.
                You have a new option,

                > overlay2, which is a newer Docker driver for
                OverlayFS and generally

                > preferred. See

                > https://docs.docker.com/engine/userguide/storagedriver/selectadriver/
             

            F25 now uses docker-storage-setup, so the right way to
              select the driver was a bit different, but this
              instructions showed how to do it:
            https://access.redhat.com/documentation/en/red-hat-enterprise-linux-atomic-host/7/paged/managing-containers/chapter-1-managing-storage-with-docker-formatted-containers#overlay_graph_driver
            

                > *But*, I'm not sure offhand if SELinux support is
                complete -- I know it

                > *was being worked on.

                >

              SELinux should work fine on F25.  We are working to
              change the default

              in F26 to the overlay2 driver.
            

            That's good to hear. Do I need to add the :z or :Z when
              mounting a host directory for SELinux to work? If so, will
              that cause any problems when running on Mac/Windows?
            

    If you want to share the volume on an SELinux system then you need
    :z and :Z, on a non SELinux system these options will be ignored. 
    If you are using a docker client on Mac/Windows and a docker daemon
    on an SELinux system, then these options should work fine.

    
            Thanks for the help,
            Dave
          
        
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