kubevela/docs/examples/registry/patch-replica.yaml

apiVersion: core.oam.dev/v1beta1
kind: TraitDefinition
metadata:
  annotations:
    definition.oam.dev/description: "patch replica to the app"
  name: patch-replica
  namespace: vela-system
spec:
  appliesToWorkloads:
    - webservice
    - worker
  schematic:
    cue:
      template: |-
        patch: {
           spec: replicas: parameter.replicas
        }
        parameter: {
          //+short=r
          replicas: *1 | int
        }