add ns networkpolicy

pkg/controller/network/utils/strings.go

@@ -0,0 +1,22 @@
+package utils
+
+// ContainsString report if s is in a slice
+func ContainsString(slice []string, s string) bool {
+	for _, item := range slice {
+		if item == s {
+			return true
+		}
+	}
+	return false
+}
+
+// RemoveString remove s from slice if exists
+func RemoveString(slice []string, s string) (result []string) {
+	for _, item := range slice {
+		if item == s {
+			continue
+		}
+		result = append(result, item)
+	}
+	return
+}