diff --git a/.github/workflows/pull-request.yml b/.github/workflows/pull-request.yml
index bae0649..4eaff87 100644
--- a/.github/workflows/pull-request.yml
+++ b/.github/workflows/pull-request.yml
@@ -24,12 +24,12 @@ jobs:
           ~/go/pkg/mod
         key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
         restore-keys: |
-          ${{ runner.os }}-go-    
+          ${{ runner.os }}-go-
     - uses: actions/setup-go@v4
     - uses: actions/checkout@v3
     - run: go mod download
     - run: make test
-    - run: go install github.com/mattn/goveralls@latest
+    - run: go install github.com/mattn/goveralls@v0.0.12
     - run: goveralls -coverprofile=cover.out -service=github
       env:
         COVERALLS_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/config/manager/manager.yaml b/config/manager/manager.yaml
index fef9712..9d782dc 100644
--- a/config/manager/manager.yaml
+++ b/config/manager/manager.yaml
@@ -92,7 +92,7 @@ spec:
             cpu: 10m
             memory: 64Mi
         env:
-        - name: CONTROLLER_NAMESPACE
+        - name: POD_NAMESPACE
           valueFrom:
             fieldRef:
               fieldPath: metadata.namespace
diff --git a/internal/controller/configmap_controller.go b/internal/controller/configmap_controller.go
index 38f59b0..1f370bb 100644
--- a/internal/controller/configmap_controller.go
+++ b/internal/controller/configmap_controller.go
@@ -46,10 +46,9 @@ type ConfigMapReconciler struct {
 
 // SetupWithManager sets up the controller with the Manager.
 func (r *ConfigMapReconciler) SetupWithManager(mgr ctrl.Manager) error {
-	ns := os.Getenv("CONTROLLER_NAMESPACE")
-	fmt.Printf("--- ns=[%#v]\n\n", ns)
-	if ns == "" {
-		return errors.New("CONTROLLER_NAMESPACE environment variable is not set or is empty")
+	ns, exists := os.LookupEnv("POD_NAMESPACE")
+	if !exists || ns == "" {
+		return errors.New("POD_NAMESPACE environment variable is not set or is empty")
 	}
 	r.ConfigMeta = types.NamespacedName{
 		Namespace: ns,
diff --git a/internal/controller/configmap_controller_test.go b/internal/controller/configmap_controller_test.go
index 517ef38..bc0d654 100644
--- a/internal/controller/configmap_controller_test.go
+++ b/internal/controller/configmap_controller_test.go
@@ -24,7 +24,13 @@ func TestConfigMapReconciler_SetupWithManager(t *testing.T) {
 		wantError    string
 	}{
 		{
-			name:         "successful setup 1",
+			name:         "missing POD_NAMESPACE",
+			namespaceEnv: "",
+			objects:      []client.Object{},
+			wantError:    "POD_NAMESPACE environment variable is not set or is empty",
+		},
+		{
+			name:         "unmarshal errors",
 			namespaceEnv: "default",
 			objects: []client.Object{
 				&corev1.ConfigMap{
@@ -32,12 +38,16 @@ func TestConfigMapReconciler_SetupWithManager(t *testing.T) {
 						Name:      "ingress-annotator-rules",
 						Namespace: "default",
 					},
+					Data: map[string]string{
+						"rule1": "invalid",
+					},
 				},
 			},
-			wantError: "",
+			wantError: "yaml: unmarshal errors",
 		},
+
 		{
-			name:         "successful setup 2",
+			name:         "successful setup 1",
 			namespaceEnv: "default",
 			objects: []client.Object{
 				&corev1.ConfigMap{
@@ -45,21 +55,12 @@ func TestConfigMapReconciler_SetupWithManager(t *testing.T) {
 						Name:      "ingress-annotator-rules",
 						Namespace: "default",
 					},
-					Data: map[string]string{
-						"rule1": "annotations:\n  key1: value1\nnamespace: test-namespace\ningress: test-ingress",
-					},
 				},
 			},
 			wantError: "",
 		},
 		{
-			name:         "missing CONTROLLER_NAMESPACE",
-			namespaceEnv: "",
-			objects:      []client.Object{},
-			wantError:    "CONTROLLER_NAMESPACE environment variable is not set or is empty",
-		},
-		{
-			name:         "successful setup",
+			name:         "successful setup 2",
 			namespaceEnv: "default",
 			objects: []client.Object{
 				&corev1.ConfigMap{
@@ -68,39 +69,29 @@ func TestConfigMapReconciler_SetupWithManager(t *testing.T) {
 						Namespace: "default",
 					},
 					Data: map[string]string{
-						"rule1": "invalid",
+						"rule1": "annotations:\n  key1: value1\nnamespace: test-namespace\ningress: test-ingress",
 					},
 				},
 			},
-			wantError: "yaml: unmarshal errors",
+			wantError: "",
 		},
 	}
 
 	for i, tc := range testCases {
 		t.Run(tester.Name(i, tc.name), func(t *testing.T) {
-			t.Log(111)
-			t.Setenv("CONTROLLER_NAMESPACE", tc.namespaceEnv)
-			t.Log(222)
+			t.Setenv("POD_NAMESPACE", tc.namespaceEnv)
 
-			fakeClient := newFakeClient(tc.objects...)
 			reconciler := &ConfigMapReconciler{
-				Client:     fakeClient,
+				Client:     newFakeClient(tc.objects...),
 				Scheme:     newScheme(),
 				RulesStore: rulesstore.New(),
 			}
-			t.Log(333)
-
-			mgr := newFakeManager()
-			t.Log(555)
-
-			err := reconciler.SetupWithManager(mgr)
-			t.Log(666)
+			err := reconciler.SetupWithManager(newFakeManager())
 			if tc.wantError != "" {
 				assert.ErrorContains(t, err, tc.wantError)
 			} else {
 				assert.NoError(t, err)
 			}
-			t.Log(777)
 		})
 	}
 }