Re: Questions about possible ODCS migration to Openshift.

[Patrick Uiterwijk]

On Wed, 26 Feb 2020 at 22:15, Kevin Fenzi <kevin(a)scrye.com&gt; wrote:

>  On Wed, Feb 26, 2020 at 07:18:53AM +0100, Jan Kaluza wrote:
>  > Hi,
>  >
>  > I'm considering migration of ODCS
>  > (https://odcs.fedoraproject.org/api/1/composes/) to Openshift in order
>  > to make it more scalable and also to make it closer to internal ODCS
>  > deployment which I would like to also move to Openshift in the future.
>  > I have some questions related to this:
>  >
>  > 1) ODCS needs /mnt/koji mounted in read-only mode. Based on my
>  > information, it should be possible to mount /mnt/koji in read-only
>  > mode in Openshift. Do you foresee any issues with this?
>
>  The biggest problem with it is that openshift wont let multiple pods use
>  the same pv, so you have to make N of them confusingly, but I guess
>  thats not a blocker.
>
>  > 2) ODCS needs /srv/odcs NFS storage ("fedora_odcs") mounted in
>  > read-write mode. Is it possible and safe to mount this storage in
>  > Openshift in read-write?
>
>  Yeah, should be. But note only in one pod. 

This should work from multiple pods just fine if the PV is a RWX
(ReadWriteMany) volume, which NFS is capable of.


>  > 3) If I understand it correctly, I will have to use official Fedora
>  > Openshift (it means *no* comunnishift) even for my initial tests,
>  > because communishift does not allow me to mount these volumes. Is it
>
>  Correct, you cannot mount any of those volumes there.
>  You can however use clean new volumes and populate them with whatever
>  test data you like. So, it may still be wise to do initial work in
>  communishift and then move on to internal clusters once things are
>  working? But you are doing the work, so it's up to you of course. :)
>
>  > possible to ask for new Fedora Openshift project for this use-case?
>
>  Well, the way the project exists is via a playbook/configuation in
>  ansible, so you can come up with a patch and send it for review?
>  Look at playbooks/openshift-apps and roles/openshift-apps for examples.
>
>  > 4) Do you foresee any issues I might be missing?
>
>  I would think it would work.
>
>  kevin
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