Add port attributes

.devcontainer/devcontainer.json

@@ -19,7 +19,13 @@
 		"terminal.integrated.shell.linux": "/bin/bash",
 		"go.useGoProxyToCheckForToolUpdates": false,
 		"go.gopath": "/go",
-		"go.useLanguageServer": true
+		"go.useLanguageServer": true,
+		"remote.portsAttributes": {
+			"9000": {
+				"label": "My Port",
+				"onAutoForward": "notify"
+			}
+		}
 	},
 	
 	// Add the IDs of extensions you want installed when the container is created.