Handling Custom Labels Created in TAS

NCP can handle custom labels that you create on an app in TAS. NCP will create corresponding tags in NSX for those labels.

In TAS, you can create labels with the following command. For example,

cf curl v3/apps/<app-guid> -X PATCH -d '{"metadata": {"labels": {"aaa": "111", "bbb": "222"}}

You can also delete a label by setting the value of a label to null, For example,

cf curl v3/apps/<app-guid> -X PATCH -d '{"metadata": {"labels":{"aaa": null}}}'

These commands trigger events that NCP can retrieve. For a new label, for example, "aaa":"111", NCP will create the tag app_label/aaa:111 for the logical ports of all the app instances. If you delete a label, the corresponding tag will be removed.