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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