After upgrading from vCenter 7 to vCenter 8.0u3e, the Tanzu Kubernetes Releases (TKR) show Inaccurate Compatibility

Products

• VMware vSphere 7.0 with Tanzu
• VMware vSphere Kubernetes Service
• vSphere with Tanzu
• Tanzu Kubernetes Runtime

Issue/Introduction

After an upgrade of vCenter 7.x to vCenter 8.0u3e, the list of compatible Tanzu Kubernetes Releases (TKR) is incorrect.

 

While connected to the Supervisor cluster context, checking the list of TKRs returns the following incompatible TKRs as compatible True:

• kubectl get tkr
  
  v1.23.15---vmware.1                       v1.23.15+vmware.1                       False   False
  v1.23.8---vmware.1-tkg.1                  v1.23.8+vmware.1-tkg.1                  False   False
  v1.24.9---vmware.1                        v1.24.9+vmware.1                        False   False
  v1.25.7---vmware.3-fips.1                 v1.25.7+vmware.3-fips.1                 True    True
  v1.26.13---vmware.1-fips.1                v1.26.13+vmware.1-fips.1                True    True
  v1.26.5---vmware.2-fips.1                 v1.26.5+vmware.2-fips.1                 True    True
  v1.27.11---vmware.1-fips.1                v1.27.11+vmware.1-fips.1                True    True

• However, checking the list of Kubernetes Releases (KR) returns accurately as compatible False:

  • kubectl get kr
    
    v1.23.15---vmware.1                       v1.23.15+vmware.1                       False    False
    v1.23.8---vmware.1-tkg.1                  v1.23.8+vmware.1-tkg.1                  False    False
    v1.24.9---vmware.1                        v1.24.9+vmware.1                        False    False
    v1.25.7---vmware.3-fips.1                 v1.25.7+vmware.3-fips.1                 False    False
    v1.26.13---vmware.1-fips.1                v1.26.13+vmware.1-fips.1                False    False
    v1.26.5---vmware.2-fips.1                 v1.26.5+vmware.2-fips.1                 False    False
    v1.27.11---vmware.1-fips.1                v1.27.11+vmware.1-fips.1                False    False
    
    

• The creation of any cluster will return with expected error messages for the above incompatible versions.

 

Environment

Environment where it was recently upgraded from vSphere with Tanzu 7 to vSphere with Tanzu 8

Post-upgrade of any vCenter 7 version to vCenter 8.0u3e

VKS/TKG Service v3.2 and higher

This issue can occur regardless of whether or not the cluster is managed by Tanzu Mission Control (TMC)

Cause

Starting in vSphere 8.0, the VKS/TKG Service as a Supervisor Service manages compatibility of Kubernetes Releases.

• See the following interoperability matrix for details:
  • Interoperability Matrix between TKG Service and Tanzu Kubernetes Releases

Resolution

Consult the output of Kubernetes Releases (KR) for accurate compatibility of vSphere Kubernetes workload cluster versions.

• kubectl get kr