Upgrade sequence for post VMware Telco Cloud Automation upgrade.

VMware Telco Cloud Automation 1.8 is integrated with the VMware Tanzu Kubernetes Grid (TKG) 1.2. The TKG 1.2 requires you to upgrade the magement cluster. After upgrading the VMware Telco Cloud Automation version, perform the following in the sequence provided.
  1. Upgrade the management cluster. For details, see Upgrade Kubernetes Version. For implications of not upgrading the management cluster, see Implications of Not Upgrading Management Cluster.
  2. Upgrade the Workload cluster node pools. For details, see Upgrading the Node Pool. For implications of not upgrading the nodepool, see Implications of Not Upgrading Node Pool.
    Note: The step is mandatory when upgrading from VMware Telco Cloud Automation 1.7 to VMware Telco Cloud Automation 1.8. For other version, this step is not required.
  3. Upgrade the workload cluster. For details, see Upgrade Kubernetes Version. For implications of not upgrading the workload cluster, see Implications of Not Upgrading Workload Cluster
    Note:
    • Upgrade is mandatory for 1.17.3 and 1.18.2 workload clusters. It is optional for 1.18.6 workload cluster.
    • The workload clusters running on 1.17.3 and 1.18.2, you may need to modify the Photon repo. For details, see https://kb.vmware.com/s/article/82322?lang=en_US.