Upgrading a KKP setup that is already managed by the Operator is as simple as updating the Helm charts and following the general upgrade notes.
Download the latest 2.17 release from GitHub (make sure to choose the right version, CE for the Community or EE for the Enterprise Edition) and extract the archive locally.
wget https://github.com/kubermatic/kubermatic/releases/download/v2.17.0/kubermatic-ee-v2.17.0-linux-amd64.tar.gz tar -xzvf kubermatic-ce-v2.17.0-linux-amd64.tar.gz
Run the installer to perform the upgrade using the
values.yaml you used to create the platform.
./kubermatic-installer deploy --config kubermatic.yaml --helm-values values.yaml --migrate-cert-manager
Note that the
--migrate-cert-manager flag is necessary for the migration to cert-manager
1.2.0 to succeed.
It will trigger an automatic migration of all
Certificate resources from
v1 (find more details here).
The Operator will automatically update the KKP Seed Controller Manager on every seed cluster. Manually upgrade all other charts you might have installed as part of the monitoring or logging stacks.
The operator installs the
nodeport-proxy by default. This step is required only
for installations where
nodeport-proxy was originally installed by Helm chart
and it was not migrated yet as part of the migration to the operator.
nodeport-proxy Helm chart has been deprecated in 2.15, the proxy however is still a required component
of any Kubermatic setup, but is now managed by the Kubermatic Operator (similar to how it manages seed clusters).
The migration to the operator-managed nodeport-proxy is relatively simple. The operator by default creates the
new nodeport-proxy inside the Kubermatic namespace (
kubermatic by default), whereas the old proxy was
living in the
nodeport-proxy namespace. Due to this, no naming conflicts can occur and in fact, both proxies
can co-exist in the same cluster.
The only important aspect is where the DNS record for the seed cluster is pointing. To migrate from the old to new nodeport-proxy, all that needs to be done is switch the DNS record to the new LoadBalancer service. The new services uses the same ports, so it does not matter what service a user is reaching.
To migrate, find the new LoadBalancer service’s public endpoint:
kubectl -n kubermatic get svc #NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE #kubermatic-api NodePort 10.47.248.61 <none> 80:32486/TCP,8085:32223/TCP 216d #kubermatic-dashboard NodePort 10.47.247.32 <none> 80:32382/TCP 128d #kubermatic-ui NodePort 10.47.240.175 <none> 80:31585/TCP 216d #nodeport-proxy LoadBalancer 10.47.254.72 22.214.171.124 32180:32428/TCP,30168:30535/TCP,8002:30791/TCP 182d #seed-webhook ClusterIP 10.47.249.0 <none> 443/TCP 216d
nodeport-proxy’s EXTERNAL IP, in this case
126.96.36.199, and update your DNS record for
*.<seedname>.kubermatic.example.com to point to this new IP.
It will take some time for the DNS changes to propagate to every user, so it is recommended to leave the old nodeport-proxy in place for a period of time (e.g. a few days to be conservative), before finally removing it:
helm --namespace nodeport-proxy delete nodeport-proxy kubectl delete ns nodeport-proxy
helm --tiller-namespace kubermatic delete --purge nodeport-proxy kubectl delete ns nodeport-proxy
These steps need to be performed on all seed clusters.