Installation Overrides

Customize installation overrides

Installation overrides let you supply custom values to the underlying Helm charts or operator for a given component. You can supply Verrazzano installation overrides by using a configMapRef, secretRef, or raw values.

The following tables have examples of the Istio component InstallOverrides ConfigMap, Secret, and Values, where the external IP addresses are specified instead of using the defaults. For the default values, see the IstioOperatorSpec.

In the examples, the ConfigMap and Secret overrides are applied before applying the Verrazzano resource installation YAML file.

ConfigMap

Note that the value of the metadata name in the configMap.yaml file must match the configMapRef name in the verrazzanoResourceWithConfigMapRef.yaml file. Also, the values of the key in the configMapRef and the key in the data section of the configMap must match.

ConfigMap
configMap.yaml		 ConfigMapRef
verrazzanoResourceWithConfigMapRef.yaml		 
apiVersion: v1
kind: ConfigMap
metadata:
  name: istio-cm
data:
  istio-override: |
    apiVersion: install.istio.io/v1alpha1
    kind: IstioOperator
    spec:
      components:
        ingressGateways:
        - k8s:
            service:
              externalIPs:
              - 11.22.33.44
              type: NodePort
          name: istio-ingressgateway    

apiVersion: install.verrazzano.io/v1beta1
kind: Verrazzano
metadata:
  name: vz-with-cm
spec:
  profile: dev
  components:
    rancher:
      enabled: false
    istio:
      overrides:
      -  configMapRef:
           name: istio-cm
           key: istio-override

Secret

Secret
secret.yaml		 SecretRef
verrazzanoResourceWithSecretRef.yaml		 
apiVersion: v1
kind: Secret
metadata:
  name: istio-s
stringData:
  istio-override: |
    apiVersion: install.istio.io/v1alpha1
    kind: IstioOperator
    spec:
      components:
        ingressGateways:
        - k8s:
            service:
              externalIPs:
              - 11.22.33.44
              type: NodePort
          name: istio-ingressgateway             

apiVersion: install.verrazzano.io/v1beta1
kind: Verrazzano
metadata:
  name: vz-with-secret
  namespace: default
spec:
  profile: dev
  components:
    rancher:
      enabled: false
    istio:
      overrides:
      -  secretRef:
           name: istio-s
           key: istio-override

Values

Values
verrazzanoResourceWithValues.yaml		 
apiVersion: install.verrazzano.io/v1beta1
kind: Verrazzano
metadata:
  name: vz-with-values
spec:
  components:
    istio:
      overrides:
      - values:
          apiVersion: install.istio.io/v1alpha1
          kind: IstioOperator
          spec:
            components:
              ingressGateways:
                - enabled: true
                  name: istio-ingressgateway
                  k8s:
                    service:
                      type: NodePort
                      ports:
                      - name: https
                        port: 443
                        nodePort: 32443
                        protocol: TCP
                        targetPort: 8443
                      externalIPs:
                      - 11.22.33.44