Hosted control plane (k0smotron) deployment

Prerequisites

• Management Kubernetes cluster (v1.28+) deployed on vSphere with HMC installed on it

Keep in mind that all control plane components for all managed clusters will reside in the management cluster.

ManagedCluster manifest

Hosted CP template has mostly identical parameters with standalone CP, you can check them in the template parameters section.

Important Note on Control Plane Endpoint IP Address

The vSphere provider requires the control plane endpoint IP to be specified before deploying the cluster. Ensure that this IP matches the IP assigned to the k0smotron load balancer (LB) service. Provide the control plane endpoint IP to the k0smotron service via an annotation accepted by your LB provider (e.g., the kube-vip annotation in the example below).

apiVersion: hmc.mirantis.com/v1alpha1
kind: ManagedCluster
metadata:
  name: cluster-1
spec:
  template: vsphere-hosted-cp-0-0-2
  credential: vsphere-credential
  config:
    vsphere:
      server: vcenter.example.com
      thumbprint: "00:00:00"
      datacenter: "DC"
      datastore: "/DC/datastore/DC"
      resourcePool: "/DC/host/vCluster/Resources/ResPool"
      folder: "/DC/vm/example"
    controlPlaneEndpointIP: "172.16.0.10"
    ssh:
      user: ubuntu
      publicKey: |
        ssh-rsa AAA...
    rootVolumeSize: 50
    cpus: 2
    memory: 4096
    vmTemplate: "/DC/vm/template"
    network: "/DC/network/Net"
    k0smotron:
      service:
        annotations:
          kube-vip.io/loadbalancerIPs: "172.16.0.10"