Add network policy printer

internal/describer/objects.go

@@ -14,6 +14,7 @@ import (
 	batchv1beta1 "k8s.io/api/batch/v1beta1"
 	corev1 "k8s.io/api/core/v1"
 	"k8s.io/api/extensions/v1beta1"
+	networkingv1 "k8s.io/api/networking/v1"
 	rbacv1 "k8s.io/api/rbac/v1"
 
 	"github.com/vmware-tanzu/octant/pkg/icon"
@@ -164,12 +165,22 @@ func initNamespacedOverview() *Section {
 		IconName:       icon.OverviewService,
 	})
 
+	dlbNetworkPolicies := NewResource(ResourceOptions{
+		Path:           "/discovery-and-load-balancing/network-policies",
+		ObjectStoreKey: store.Key{APIVersion: "networking.k8s.io/v1", Kind: "NetworkPolicy"},
+		ListType:       &networkingv1.NetworkPolicyList{},
+		ObjectType:     &networkingv1.NetworkPolicy{},
+		Titles:         ResourceTitle{List: "Discovery & Load Balancing / Network Policies", Object: "Network Policy"},
+		IconName:       icon.OverviewNetworkPolicy,
+	})
+
 	discoveryAndLoadBalancingDescriber := NewSection(
 		"/discovery-and-load-balancing",
 		"Discovery and Load Balancing",
 		dlbHorizontalPodAutoscalers,
 		dlbIngresses,
 		dlbServices,
+		dlbNetworkPolicies,
 	)
 
 	csConfigMaps := NewResource(ResourceOptions{

internal/gvk/gvk.go

@@ -29,6 +29,7 @@ var (
 	Job                      = schema.GroupVersionKind{Group: "batch", Version: "v1", Kind: "Job"}
 	Node                     = schema.GroupVersionKind{Version: "v1", Kind: "Node"}
 	Namespace                = schema.GroupVersionKind{Version: "v1", Kind: "Namespace"}
+	NetworkPolicy            = schema.GroupVersionKind{Group: "networking.k8s.io", Version: "v1", Kind: "NetworkPolicy"}
 	ServiceAccount           = schema.GroupVersionKind{Version: "v1", Kind: "ServiceAccount"}
 	Secret                   = schema.GroupVersionKind{Version: "v1", Kind: "Secret"}
 	Service                  = schema.GroupVersionKind{Version: "v1", Kind: "Service"}

internal/modules/overview/navigation.go

@@ -64,6 +64,8 @@ func discoAndLBEntries(ctx context.Context, prefix, namespace string, objectStor
 		loading.IsObjectLoading(ctx, namespace, store.KeyFromGroupVersionKind(gvk.Ingress), objectStore))
 	neh.Add("Services", "services",
 		loading.IsObjectLoading(ctx, namespace, store.KeyFromGroupVersionKind(gvk.Service), objectStore))
+	neh.Add("Network Policies", "network-policies",
+		loading.IsObjectLoading(ctx, namespace, store.KeyFromGroupVersionKind(gvk.NetworkPolicy), objectStore))
 
 	children, err := neh.Generate(prefix, namespace, "")
 	if err != nil {

internal/modules/overview/path.go

@@ -28,6 +28,7 @@ var (
 		gvk.HorizontalPodAutoscaler,
 		gvk.Ingress,
 		gvk.Service,
+		gvk.NetworkPolicy,
 		gvk.ConfigMap,
 		gvk.Secret,
 		gvk.PersistentVolumeClaim,
@@ -86,6 +87,8 @@ func gvkPath(namespace, apiVersion, kind, name string) (string, error) {
 		p = "/discovery-and-load-balancing/ingresses"
 	case apiVersion == "v1" && kind == "Service":
 		p = "/discovery-and-load-balancing/services"
+	case apiVersion == "networking.k8s.io/v1" && kind == "NetworkPolicy":
+		p = "/discovery-and-load-balancing/network-policies"
 	case apiVersion == "rbac.authorization.k8s.io/v1" && kind == "Role":
 		p = "/rbac/roles"
 	case apiVersion == "rbac.authorization.k8s.io/v1" && kind == "RoleBinding":

internal/printer/handler.go

@@ -37,6 +37,8 @@ func AddHandlers(p Handler) error {
 		NodeListHandler,
 		NamespaceHandler,
 		NamespaceListHandler,
+		NetworkPolicyHandler,
+		NetworkPolicyListHandler,
 		ReplicaSetHandler,
 		ReplicaSetListHandler,
 		ReplicationControllerHandler,