Remove network policies on uninstall

Signed-off-by: Stefan Prodan <stefan.prodan@gmail.com>

cmd/flux/uninstall.go

@@ -24,6 +24,7 @@ import (
 	"github.com/spf13/cobra"
 	appsv1 "k8s.io/api/apps/v1"
 	corev1 "k8s.io/api/core/v1"
+	networkingv1 "k8s.io/api/networking/v1"
 	rbacv1 "k8s.io/api/rbac/v1"
 	apiextensionsv1 "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
@@ -130,6 +131,18 @@ func uninstallComponents(ctx context.Context, kubeClient client.Client, namespac
 			}
 		}
 	}
+	{
+		var list networkingv1.NetworkPolicyList
+		if err := kubeClient.List(ctx, &list, client.InNamespace(namespace), selector); err == nil {
+			for _, r := range list.Items {
+				if err := kubeClient.Delete(ctx, &r, opts); err != nil {
+					logger.Failuref("NetworkPolicy/%s/%s deletion failed: %s", r.Namespace, r.Name, err.Error())
+				} else {
+					logger.Successf("NetworkPolicy/%s/%s deleted %s", r.Namespace, r.Name, dryRunStr)
+				}
+			}
+		}
+	}
 	{
 		var list corev1.ServiceAccountList
 		if err := kubeClient.List(ctx, &list, client.InNamespace(namespace), selector); err == nil {

docs/guides/installation.md

@@ -617,6 +617,7 @@ flux uninstall --namespace=flux-system
 The above command performs the following operations:
 
 - deletes Flux components (deployments and services)
+- deletes Flux network policies
 - deletes Flux RBAC (service accounts, cluster roles and cluster role bindings)
 - removes the Kubernetes finalizers from Flux custom resources
 - deletes Flux custom resource definitions and custom resources

internal/utils/utils.go

@@ -33,6 +33,7 @@ import (
 	"github.com/olekukonko/tablewriter"
 	appsv1 "k8s.io/api/apps/v1"
 	corev1 "k8s.io/api/core/v1"
+	networkingv1 "k8s.io/api/networking/v1"
 	rbacv1 "k8s.io/api/rbac/v1"
 	apiextensionsv1 "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1"
 	apiruntime "k8s.io/apimachinery/pkg/runtime"
@@ -169,6 +170,7 @@ func KubeClient(kubeConfigPath string, kubeContext string) (client.Client, error
 	_ = corev1.AddToScheme(scheme)
 	_ = rbacv1.AddToScheme(scheme)
 	_ = appsv1.AddToScheme(scheme)
+	_ = networkingv1.AddToScheme(scheme)
 	_ = sourcev1.AddToScheme(scheme)
 	_ = kustomizev1.AddToScheme(scheme)
 	_ = helmv2.AddToScheme(scheme)