[CentOS] C7 and docker storage

Gianluca Cecchi <gianluca.cecchi at gmail.com> wrote:
> Date: Thu, 30 Nov 2017 09:55:58 +0100
> On Wed, Nov 29, 2017 at 10:23 PM, <m.roth at 5-cent.us> wrote:
>
>> The latter would explain the message my user's job gave him when it tried
>> to umount /
>>
>> A bit of googling, and I see something called overlayFS can be used... but
>> I know nothing about that, or how dangerous it is.  Anyone got a pointed
>> to something more than the minimal how to configure docker to use it?
>>
> You could follow CentOS Atomic SIG
> https://wiki.centos.org/SpecialInterestGroup/Atomic
> http://www.projectatomic.io/download/
>
> and/or read here and adapt in case for your storage needs:
> http://www.projectatomic.io/docs/docker-storage-recommendation/
>
> See also here for overlayfs addiction in CentOS Atomic Host in September
> this year
> https://seven.centos.org/2017/09/new-centos-atomic-host-with-overlayfs-storage/
>
Interesting, but it doesn't help me: I can't rebuild the server, it's in
use, and I yum installed docker from the std. repos. What I see from the
links tells me how to switch storage, not how to manually configure
overlay2 storage, and whether I can do as I said, and point it to an
NFS-mounted location.

     mark