istio-config-1.13.4.yaml

apiVersion: install.istio.io/v1alpha1
kind: IstioOperator
metadata:
  namespace: istio-system
spec:
  profile: "demo"
  hub: gcr.io/istio-release
  meshConfig:
    # Change the following line to configure the trust domain of the Istio cluster.
    trustDomain: foo.bar
  values:
    global:
      # Change certificate provider to cert-manager istio agent for istio agent
      caAddress: cert-manager-istio-csr.cert-manager.svc:443
  components:
    pilot:
      k8s:
        env:
          # Disable istiod CA Sever functionality
        - name: ENABLE_CA_SERVER
          value: "false"
        overlays:
        - apiVersion: apps/v1
          kind: Deployment
          name: istiod
          patches:

            # Mount istiod serving and webhook certificate from Secret mount
          - path: spec.template.spec.containers.[name:discovery].args[-1]
            value: "--tlsCertFile=/etc/cert-manager/tls/tls.crt"
          - path: spec.template.spec.containers.[name:discovery].args[-1]
            value: "--tlsKeyFile=/etc/cert-manager/tls/tls.key"
          - path: spec.template.spec.containers.[name:discovery].args[-1]
            value: "--caCertFile=/etc/cert-manager/ca/root-cert.pem"

          - path: spec.template.spec.containers.[name:discovery].volumeMounts[-1]
            value:
              name: cert-manager
              mountPath: "/etc/cert-manager/tls"
              readOnly: true
          - path: spec.template.spec.containers.[name:discovery].volumeMounts[-1]
            value:
              name: ca-root-cert
              mountPath: "/etc/cert-manager/ca"
              readOnly: true

          - path: spec.template.spec.volumes[-1]
            value:
              name: cert-manager
              secret:
                secretName: istiod-tls
          - path: spec.template.spec.volumes[-1]
            value:
              name: ca-root-cert
              configMap:
                defaultMode: 420
                name: istio-ca-root-cert