complish feature gate dependency in kubeadm

cmd/kubeadm/app/features/features.go

@@ -155,5 +155,22 @@ func NewFeatureGate(f *FeatureList, value string) (map[string]bool, error) {
 		featureGate[k] = boolValue
 	}
 
+	ResolveFeatureGateDependencies(featureGate)
+
 	return featureGate, nil
 }
+
+// ResolveFeatureGateDependencies resolve dependencies between feature gates
+func ResolveFeatureGateDependencies(featureGate map[string]bool) {
+
+	// if StoreCertsInSecrets enabled, SelfHosting should enabled
+	if Enabled(featureGate, StoreCertsInSecrets) {
+		featureGate[SelfHosting] = true
+	}
+
+	// if HighAvailability enabled, both StoreCertsInSecrets and SelfHosting should enabled
+	if Enabled(featureGate, HighAvailability) && !Enabled(featureGate, StoreCertsInSecrets) {
+		featureGate[SelfHosting] = true
+		featureGate[StoreCertsInSecrets] = true
+	}
+}

cmd/kubeadm/app/features/features_test.go

@@ -156,3 +156,36 @@ func TestValidateVersion(t *testing.T) {
 		}
 	}
 }
+
+func TestResolveFeatureGateDependencies(t *testing.T) {
+
+	var tests = []struct {
+		inputFeatures    map[string]bool
+		expectedFeatures map[string]bool
+	}{
+		{ // no flags
+			inputFeatures:    map[string]bool{},
+			expectedFeatures: map[string]bool{},
+		},
+		{ // others flags
+			inputFeatures:    map[string]bool{"SupportIPVSProxyMode": true},
+			expectedFeatures: map[string]bool{"SupportIPVSProxyMode": true},
+		},
+		{ // just StoreCertsInSecrets flags
+			inputFeatures:    map[string]bool{"StoreCertsInSecrets": true},
+			expectedFeatures: map[string]bool{"StoreCertsInSecrets": true, "SelfHosting": true},
+		},
+		{ // just HighAvailability flags
+			inputFeatures:    map[string]bool{"HighAvailability": true},
+			expectedFeatures: map[string]bool{"HighAvailability": true, "StoreCertsInSecrets": true, "SelfHosting": true},
+		},
+	}
+
+	for _, test := range tests {
+		ResolveFeatureGateDependencies(test.inputFeatures)
+		if !reflect.DeepEqual(test.inputFeatures, test.expectedFeatures) {
+			t.Errorf("ResolveFeatureGateDependencies failed, expected: %v, got: %v", test.inputFeatures, test.expectedFeatures)
+
+		}
+	}
+}