EMK - Kubernetes v1.33

Estimated time to read: 2 minutes

Upgrade to Kubernetes v1.34

All steps can be executed from the Cyso Cloud Dashboard or using the Kubernetes command line client kubectl.

Important

Always read through the Kubernetes changelog and upgrade notes before upgrading.

Additional changes not mentioned in the official Kubernetes release notes:

spec.cloudProfileName removed — This field has been replaced by a structured spec.cloudProfile object:
```
  spec:
    cloudProfile:
      kind: CloudProfile
      name: fugacloud
```
Current customer clusters have already been updated accordingly.
spec.secretBindingName removed — This field has been replaced by spec.credentialsBindingName.
SecretBindings deprecated — Clusters on v1.34 must use CredentialsBindings instead. Existing SecretBindings have been automatically migrated to CredentialsBindings. Current customer clusters have already been updated accordingly.

Upgrade Steps

Review the Kubernetes v1.34 changelog for all changes
Upgrade the cluster to Kubernetes v1.34:

Using the Dashboard:
- Navigate to your cluster in the Cyso Cloud dashboard
- Click the '...' menu next to your cluster
- Choose 'Upgrade Cluster'
- Select version 1.34
- Confirm the upgrade
Using kubectl:
```
kubectl patch shoot <cluster-name> --type merge -p '{"spec":{"kubernetes":{"version":"1.34.x"}}}'
```
Monitor the upgrade progress in the cluster overview

Upgrade Duration

The upgrade process can take several minutes depending on your cluster size. During this time, the cluster remains operational, but certain management operations may be temporarily unavailable.