feat: add health check for namespace

pkg/health/health.go

@@ -175,6 +175,8 @@ func GetHealthCheckFunc(gvk schema.GroupVersionKind) func(obj *unstructured.Unst
 			return getPVCHealth
 		case PodKind:
 			return getPodHealth
+		case NamespaceKind:
+			return getNamespaceHealth
 		}
 	case "batch":
 		switch gvk.Kind {

pkg/health/health_namespace.go

@@ -0,0 +1,26 @@
+package health
+
+import (
+	"fmt"
+
+	v1 "k8s.io/api/core/v1"
+	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
+	"k8s.io/apimachinery/pkg/runtime"
+)
+
+func getNamespaceHealth(obj *unstructured.Unstructured) (*HealthStatus, error) {
+	var node v1.Namespace
+	if err := runtime.DefaultUnstructuredConverter.FromUnstructured(obj.Object, &node); err != nil {
+		return nil, fmt.Errorf("failed to convert unstructured Node to typed: %v", err)
+	}
+
+	if node.Status.Phase == v1.NamespaceActive {
+		return &HealthStatus{
+			Status: HealthStatusHealthy,
+		}, nil
+	}
+
+	return &HealthStatus{
+		Status: HealthStatusDeleting,
+	}, nil
+}

pkg/health/health_test.go

@@ -33,6 +33,11 @@ func getHealthStatus(yamlPath string, t *testing.T) *health.HealthStatus {
 	return health
 }
 
+func TestNamespace(t *testing.T) {
+	assertAppHealth(t, "./testdata/namespace.yaml", health.HealthStatusHealthy)
+	assertAppHealth(t, "./testdata/namespace-terminating.yaml", health.HealthStatusDeleting)
+}
+
 func TestCertificate(t *testing.T) {
 	assertAppHealth(t, "./testdata/certificate-healthy.yaml", health.HealthStatusHealthy)
 }

pkg/health/testdata/namespace-terminating.yaml

@@ -0,0 +1,18 @@
+---
+apiVersion: v1
+kind: Namespace
+metadata:
+  creationTimestamp: '2024-02-10T10:27:15Z'
+  labels:
+    kubernetes.io/metadata.name: media
+    kustomize.toolkit.fluxcd.io/name: flux-system
+    kustomize.toolkit.fluxcd.io/namespace: flux-system
+    kustomize.toolkit.fluxcd.io/prune: disabled
+  name: media
+  resourceVersion: '4518738'
+  uid: c1b2dc7f-7070-4ee5-9ae0-e43df5523cd8
+spec:
+  finalizers:
+    - kubernetes
+status:
+  phase: Terminating

pkg/health/testdata/namespace.yaml

@@ -0,0 +1,18 @@
+---
+apiVersion: v1
+kind: Namespace
+metadata:
+  creationTimestamp: '2024-02-10T10:27:15Z'
+  labels:
+    kubernetes.io/metadata.name: media
+    kustomize.toolkit.fluxcd.io/name: flux-system
+    kustomize.toolkit.fluxcd.io/namespace: flux-system
+    kustomize.toolkit.fluxcd.io/prune: disabled
+  name: media
+  resourceVersion: '4518738'
+  uid: c1b2dc7f-7070-4ee5-9ae0-e43df5523cd8
+spec:
+  finalizers:
+    - kubernetes
+status:
+  phase: Active