}
	conn.Close()
}

func connect(socket string) (*grpc.ClientConn, error) {
	var opts []grpc.DialOption

	opts = append(opts, grpc.WithTransportCredentials(insecure.NewCredentials()), grpc.WithContextDialer(func(ctx context.Context, addr string) (net.Conn, error) {
		var d net.Dialer
		return d.DialContext(ctx, "unix", socket)
	}))

	conn, err := grpc.Dial(socket, opts...)
	if err != nil {
		return nil, err
	}

### Design details

Broadly, `istio-cni` accomplishes ambient redirection by instructing ztunnel to set up sockets within the application pod network namespace, where:

- one end of the socket is in the application pod
- and the other end is in ztunnel's pod

and setting up iptables rules to funnel traffic thru that socket "tube" to ztunnel and back.

iptables -t nat -N ISTIO_POSTRT
iptables -t nat -A POSTROUTING -j ISTIO_POSTRT
iptables -t nat -A ISTIO_POSTRT -m owner --socket-exists -p tcp -m set --match-set istio-inpod-probes-v4 dst -j SNAT --to-source 169.254.7.127
ip6tables -t nat -N ISTIO_POSTRT
ip6tables -t nat -A POSTROUTING -j ISTIO_POSTRT

      timeoutSeconds: 3
      failureThreshold: {{ .Values.global.proxy.readinessFailureThreshold }}
    volumeMounts:
    - name: workload-socket
      mountPath: /var/run/secrets/workload-spiffe-uds
    - name: credential-socket
      mountPath: /var/run/secrets/credential-uds
    {{- if eq .Values.global.caName "GkeWorkloadCertificate" }}
    - name: gke-workload-certificate

            portValue: 9080
        healthCheckConfig: {}
      healthStatus: HEALTHY
      loadBalancingWeight: 1
      metadata:
        filterMetadata:
          envoy.transport_socket_match:
            tlsMode: istio
          istio:
            workload: details-v1;default;details;v1;Kubernetes
    loadBalancingWeight: 1
    locality: {}
  policy:
    overprovisioningFactor: 140

            valueFrom:
              fieldRef:
                fieldPath: spec.nodeName
          volumeMounts:
          - name: workload-socket
            mountPath: /var/run/secrets/workload-spiffe-uds
          - name: credential-socket
            mountPath: /var/run/secrets/credential-uds
          - name: workload-certs
            mountPath: /var/run/secrets/workload-spiffe-credentials

          initialDelaySeconds: 0
          periodSeconds: 15
          successThreshold: 1
          timeoutSeconds: 1
        volumeMounts:
        - name: workload-socket
          mountPath: /var/run/secrets/workload-spiffe-uds
        - name: credential-socket
          mountPath: /var/run/secrets/credential-uds
        {{- if eq .Values.global.caName "GkeWorkloadCertificate" }}
        - name: gke-workload-certificate

iptables -t nat -N ISTIO_POSTRT
iptables -t nat -A POSTROUTING -j ISTIO_POSTRT

      timeoutSeconds: 3
      failureThreshold: {{ .Values.global.proxy.readinessFailureThreshold }}
    volumeMounts:
    - name: workload-socket
      mountPath: /var/run/secrets/workload-spiffe-uds
    - name: credential-socket
      mountPath: /var/run/secrets/credential-uds
    {{- if eq .Values.global.caName "GkeWorkloadCertificate" }}
    - name: gke-workload-certificate

          privileged: false
          runAsGroup: 1337
          runAsUser: 0
          capabilities:
            drop:
            - ALL
        volumeMounts:
        - name: workload-socket
          mountPath: /var/run/secrets/workload-spiffe-uds
        - mountPath: /var/run/secrets/istio
          name: istiod-ca-cert
        - mountPath: /var/lib/istio/data
          name: istio-data