Merge pull request #42241 from xiangpengzhao/shortname-np

Automatic merge from submit-queue (batch tested with PRs 44862, 42241, 42101, 43181, 44147)

Add short name "netpol" for networkpolicies

**What this PR does / why we need it**:
Add short name for `networkpolicies` in kubectl command for good user experience.

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
None

**Special notes for your reviewer**:
None

**Release note**:

```release-note
Add short name "netpol" for networkpolicies
```

pkg/kubectl/cmd/cmd.go

@@ -218,7 +218,7 @@ __custom_func() {
     * jobs
     * limitranges (aka 'limits')
     * namespaces (aka 'ns')
-    * networkpolicies
+    * networkpolicies (aka 'netpol')
     * nodes (aka 'no')
     * persistentvolumeclaims (aka 'pvc')
     * persistentvolumes (aka 'pv')

pkg/kubectl/kubectl.go

@@ -134,6 +134,10 @@ var ResourcesShortcutStatic = []ResourceShortcuts{
 		ShortForm: schema.GroupResource{Group: "extensions", Resource: "ing"},
 		LongForm:  schema.GroupResource{Group: "extensions", Resource: "ingresses"},
 	},
+	{
+		ShortForm: schema.GroupResource{Group: "extensions", Resource: "netpol"},
+		LongForm:  schema.GroupResource{Group: "extensions", Resource: "networkpolicies"},
+	},
 	{
 		ShortForm: schema.GroupResource{Group: "extensions", Resource: "psp"},
 		LongForm:  schema.GroupResource{Group: "extensions", Resource: "podSecurityPolicies"},