Configure cluster external addresses

This feature allows overriding of external addresses of onboarded clusters through IngressGateway or Tier1Gateway install CR. The provided IP addresses/hostnames will then be used to access the clusters from the outside world. Note that this feature is useful only when you have some other IP address/hostname already configured to access your kubernetes cluster from the outside world.

Data Plane

To use this feature with IngressGateway, set the xcp.tetrate.io/cluster-external-addresses annotation under kubeSpec/service in your IngressGateway install (DataPlane) CR and apply it with kubectl.

apiVersion: install.tetrate.io/v1alpha1
kind: IngressGateway
metadata:
  name: bookinfo
  namespace: bookinfo
spec:
  kubeSpec:
    deployment:
      hpaSpec:
        maxRepicas: 10
        minReplicas: 1
        metrics:
        - resource:
            name: cpu
            targetAverageUtilization: 75
          type: Resource
      replicaCount: 1
      strategy:
        rollingUpdate:
          maxUnavailable: 0
        type: RollingUpdate
    service:
      annotations:
        xcp.tetrate.io/cluster-external-addresses: "10.10.10.10,external-address-123.com"
      ports:
      - name: mtls
        port: 15443
        targetPort: 15443
      - name: http2
        port: 80
        targetPort: 8080
      - name: https
        port: 443
        targetPort: 8443
      type: NodePort

The above CR will set the kubernetesExternalAddresses to 10.10.10.10 and external-address-123.com for the gateway service.