Hi, Personally, I would proceed as folows: Option 1 - migrate vms as they are to new hypervisor, then update platform. Option 2 - do the update first, then the migration. These scenarios might have downtimes in both cases. Leo
On Fri, Aug 17, 2018, 14:32 Marcello Lorenzi <[email protected]> wrote: > Hi Aleks, > thanks for the response. We would wait some weeks for the 3.10 > installation. > > We required this information because the router and the master api into > the 2 cluster are being defined with the same hostnames (after the manual > migration of all deployment from old to the new cluster we'll move also the > VIP managed via keepalived), and we noticed during the 3.6 installation > that the playbook tries to contact the router and master APi during the > installation, but we don't know if are used the services instead the > external hostnames. > > Regards, > Marcello > > On Fri, Aug 17, 2018 at 1:16 PM Aleksandar Lazic <[email protected]> > wrote: > >> Hi Marcello. >> >> Am 17.08.2018 um 10:18 schrieb Marcello Lorenzi: >> > Hi All, >> > >> > we are checking the possibility to move an existing Openshift Origin 3.6 >> > cluster hosted on a KVM environment to a newer Openshift Origin 3.9 >> cluster >> > hosted on VMWare environment with more servers and hardware optimized. >> Into >> > this migration we would maintain the wildcard DNS address and the >> master API >> > address. >> > >> > Is it possible to install via advanced installation the newer cluster >> or the >> > installer tries to contact the older cluster and it can creates issues? >> >> Yes you can install the new cluster via advanced install. >> Why not 3.10 ? >> >> Normally 2 ocp/okd cluster does not talk to each other, afaik. >> >> If you mean with ' maintain the wildcard DNS address and the master API >> address' >> that you will reuse the current setup for the new cluster then you should >> take >> care about the DNS caches in the clients and that the old DNS setup does >> not >> point to the old one only to the new one. >> >> Regards >> Aleks >> >> > Thanks, >> > Marcello >> > >> > >> > _______________________________________________ >> > users mailing list >> > [email protected] >> > http://lists.openshift.redhat.com/openshiftmm/listinfo/users >> >> >> >> >> _______________________________________________ >> users mailing list >> [email protected] >> http://lists.openshift.redhat.com/openshiftmm/listinfo/users >> > _______________________________________________ > users mailing list > [email protected] > http://lists.openshift.redhat.com/openshiftmm/listinfo/users >
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