I would think you’d be able to a blue/green upgrade
https://docs.okd.io/3.9/upgrading/blue_green_deployments.html
After moving to new hosts, you could do in place upgrades for each minor
version until you got to 3.9.
Todd
Today's Topics:
3. Openshift Origin cluster migration (Marcello Lorenzi)
------------------------------
Message: 3
Date: Fri, 17 Aug 2018 10:18:11 +0200
From: Marcello Lorenzi <[email protected]>
To: users <[email protected]>
Subject: Openshift Origin cluster migration
Message-ID:
<CACT02+7V=ouve7dh7a4amsdsd3yfl_1zcpvem2j+jt8xzyc...@mail.gmail.com>
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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?
Thanks,
Marcello
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