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Version: v1.1

Upgrading

Key Concepts​

  • Nova Control Plane: The central management unit running on a hosting Kubernetes cluster.
  • Nova Agent: The component deployed to each workload cluster for management.
  • Workload Cluster: A Kubernetes cluster managed by the Nova Control Plane.
  • Hosting Cluster: A Kubernetes cluster where the Nova Control Plane runs.

Upgrade Control plane components​

  1. Download the tarball for the latest version and unpack it.
  2. Make sure there is nova/install/ directory there.
  3. To upgrade your control plane components, apply the associated manifests to your hosting cluster:
kubectl --context=${K8S_HOSTING_CLUSTER_CONTEXT} apply -k nova/install/base/control-plane/
  1. To upgrade the Nova CRDs, apply the nova_crds.yaml manifest to the Nova Control Plane cluster:
kubectl --context=${NOVA_CONTROLPLANE_CONTEXT} apply -f nova/install/base/crds/nova_crds.yaml --server-side
  1. Wait until control plane pods are up and running.

Upgrade Nova agent in the workload cluster​

  1. Download the tarball for the latest version and unpack it.
  2. Make sure there is nova/install/ directory there.
  3. Modify the cluster name in the nova/install/overlays/workload-cluster-1/nova_agent.yaml if needed.
  4. You can review the changes by running kubectl --context=${K8S_CLUSTER_CONTEXT_1} kustomize nova/install/overlays/workload-cluster-1 (it will output generated manifests)
  5. To upgrade your Nova agent in the workload cluster, apply the workload cluster overlay in the correct kube context:
kubectl --context=${K8S_CLUSTER_CONTEXT_1} apply -k nova/install/overlays/workload-cluster-1