Connect to a Servala control cluster

Servala control clusters are vclusters that run within specific service clusters. This means they differ from service cluster such that they are not OpenShift clusters but rather vanilla Kubernetes.

Their authentication is handled via the kubelogin plugin. For more details how to install and connect to the vcluster see: here.

Example kubeconfig

apiVersion: v1
clusters:
- cluster:
    server: https://api.cloudscale-rma-1-prod1.control.servala.com/ (1)
  name: c-sv-ctr-cls-rma-1-prod01 (2)
contexts:
- context:
    cluster: c-sv-ctr-cls-rma-1-prod01 (2)
    namespace: default
    user: oidc-user
  name: c-sv-ctr-cls-rma-1-prod01 (2)
current-context: c-sv-ctr-cls-rma-1-prod01 (2)
kind: Config
preferences: {}
users:
- name: oidc-user
  user:
    exec:
      apiVersion: client.authentication.k8s.io/v1beta1
      args:
      - oidc-login
      - get-token
      - --oidc-issuer-url=https://id.vshn.net/auth/realms/vshn-realm
      - --oidc-client-id=appuio-managed_c-sv-ctr-cls-rma-1-prod01 (3)
      - --oidc-extra-scope=email offline_access profile openid
      command: kubectl
      env: null
      interactiveMode: IfAvailable
      provideClusterInfo: false

1	URL to connect to
2	Cluster name for easier identification
3	`appuio-managed_` + cluster name

Save the kubeconfig at a convenient location and use it to connect to the control-plane cluster.