feat: Added the optional appProtocol field to Canary.Service

Signed-off-by: Phil Nichol <[email protected]>

Author: philnichol

artifacts/flagger/crd.yaml

@@ -158,6 +158,9 @@ spec:
                     portName:
                       description: Container port name
                       type: string
+                    appProtocol:
+                      description: Application protocol of the port
+                      type: string
                     targetPort:
                       description: Container target port name
                       x-kubernetes-int-or-string: true

pkg/apis/flagger/v1beta1/canary.go

@@ -128,6 +128,11 @@ type CanaryService struct {
 	// +optional
 	TargetPort intstr.IntOrString `json:"targetPort,omitempty"`
 
+	// AppProtocol of the service
+	// https://kubernetes.io/docs/concepts/services-networking/service/#application-protocol
+	// +optional
+	AppProtocol string `json:"appProtocol,omitempty"`
+
 	// PortDiscovery adds all container ports to the generated Kubernetes service
 	PortDiscovery bool `json:"portDiscovery"`
 

pkg/router/kubernetes_default.go

@@ -114,6 +114,10 @@ func (c *KubernetesDefaultRouter) reconcileService(canary *flaggerv1.Canary, nam
 		},
 	}
 
+	if v := canary.Spec.Service.AppProtocol; v != "" {
+		svcSpec.Ports[0].AppProtocol = &v
+	}
+
 	// set additional ports
 	for n, p := range c.ports {
 		cp := corev1.ServicePort{