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# rke2a
adamant-kite-43734
05/16/2023, 11:30 PMThis message was deleted.
h
hundreds-evening-84071
05/16/2023, 11:41 PMv1.21 is perhaps EOL - oldest version I see is 1.23 on support matrix: https://www.suse.com/suse-rke2/support-matrix/all-supported-versions/rke2-v1-23/
hundreds-evening-84071
05/16/2023, 11:42 PMhow was the cluster created? RPM, Script or from Rancher UI?
Reason I ask is my RKE2 cluster was created from RancherUI, so when I upgrade from the UI, it upgrades all nodes etcd/control plane/workers (1 at a time)
c
creamy-pencil-82913
05/16/2023, 11:43 PMyes, best practice is to go to latest on your current minor, then to latest on the next minor. continue until you’re on a supported minor.
q
quiet-musician-28232
05/16/2023, 11:50 PMthank you. Cluster was build using Scripts, so how different will it be?
h
hundreds-evening-84071
05/16/2023, 11:56 PMhttps://github.com/rancher/rke2/blob/release-1.21/docs/upgrade/basic_upgrade.md#upgrade-rke2-using-the-installation-script
You want to do the 3rd curl command for specific version...
this one:
Copy code
curl -sfL <https://get.rke2.io> | INSTALL_RKE2_VERSION=vX.Y.Z-rc1 sh -hundreds-evening-84071
05/16/2023, 11:57 PMthere is automated upgrade but I am not sure if that option is possible for v1.21?
https://github.com/rancher/rke2/blob/release-1.21/docs/upgrade/automated_upgrade.md
c
creamy-pencil-82913
05/17/2023, 12:11 AMthe system-upgrade-controller should work fine even that far back
q
quiet-musician-28232
05/17/2023, 12:28 AMgreat thank you, one final question, these upgrades have to be done on both control plane and worker nodes correct?
c
creamy-pencil-82913
05/17/2023, 12:30 AMif you’re doing it by hand, yes
creamy-pencil-82913
05/17/2023, 12:30 AMif you use the upgrade controller it will do that for you
q
quiet-musician-28232
05/17/2023, 12:33 AMthank you @creamy-pencil-82913 and @hundreds-evening-84071
quiet-musician-28232
05/18/2023, 12:10 AMWhen I trying to run the system-upgrade-controller.yml, I get the following error: no matches for kind "Plan" in version "upgrade.cattle.io/v1"
c
creamy-pencil-82913
05/18/2023, 1:49 AMdid you deploy the system upgrade controller and CRDs?
q
quiet-musician-28232
05/18/2023, 5:52 AMSince we have our network air gapped I could not deploy so I guess that is why the error has triggered.
So what I understand is system controller is build around the controller, so it will spawn pods to do the upgrade and it will upgrade all the master nodes along with its worker nodes?
Couple of questions I have are:
1. we have Rancher with the management server, then we have the control plane, since both have controller do we run the system-contoller on both of them or just run on rancher management?
2. as mentioned above our network is air-gapped will there anything different or we should just have to add upgrade.cattle.io/v1 to the repository?
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