Remove kubectl run validate replicas logic

Author: zhouya0

staging/src/k8s.io/kubectl/pkg/cmd/run/run.go

@@ -280,10 +280,6 @@ func (o *RunOptions) Run(f cmdutil.Factory, cmd *cobra.Command, args []string) e
 	if o.TTY && !o.Interactive {
 		return cmdutil.UsageErrorf(cmd, "-i/--stdin is required for containers with -t/--tty=true")
 	}
-	replicas := cmdutil.GetFlagInt(cmd, "replicas")
-	if o.Interactive && replicas != 1 {
-		return cmdutil.UsageErrorf(cmd, "-i/--stdin requires that replicas is 1, found %d", replicas)
-	}
 	if o.Expose && len(o.Port) == 0 {
 		return cmdutil.UsageErrorf(cmd, "--port must be set when exposing a service")
 	}
@@ -296,9 +292,6 @@ func (o *RunOptions) Run(f cmdutil.Factory, cmd *cobra.Command, args []string) e
 	if err != nil {
 		return err
 	}
-	if restartPolicy != corev1.RestartPolicyAlways && replicas != 1 {
-		return cmdutil.UsageErrorf(cmd, "--restart=%s requires that --replicas=1, found %d", restartPolicy, replicas)
-	}
 
 	remove := cmdutil.GetFlagBool(cmd, "rm")
 	if !o.Attach && remove {

staging/src/k8s.io/kubectl/pkg/cmd/run/run_test.go

@@ -441,16 +441,6 @@ func TestRunValidations(t *testing.T) {
 			},
 			expectedErr: "Invalid image name",
 		},
-		{
-			name: "test stdin replicas value",
-			args: []string{"test"},
-			flags: map[string]string{
-				"image":    "busybox",
-				"stdin":    "true",
-				"replicas": "2",
-			},
-			expectedErr: "stdin requires that replicas is 1",
-		},
 		{
 			name: "test rm errors when used on non-attached containers",
 			args: []string{"test"},