kubevela/docs/examples/registry/virtualgroup.yaml

apiVersion: core.oam.dev/v1alpha2
kind: TraitDefinition
metadata:
  annotations:
    definition.oam.dev/description: "Add virtual group labels"
  name: virtualgroup
spec:
  appliesToWorkloads:
    - webservice
    - worker
  extension:
    template: |-
      patch: {
      	spec: template: {
      		metadata: labels: {
      			if parameter.type == "namespace" {
      				"app.namespace.virtual.group": parameter.group
      			}
      			if parameter.type == "cluster" {
      				"app.cluster.virtual.group": parameter.group
      			}
      		}
      	}
      }
      parameter: {
      	group: *"default" | string
      	type:  *"namespace" | string
      }