kubevela/docs/examples/registry/node-affinity.yaml

apiVersion: core.oam.dev/v1beta1
kind: TraitDefinition
metadata:
  annotations:
    definition.oam.dev/description: "affinity specify node affinity and toleration"
  name: node-affinity
  namespace: vela-system
spec:
  appliesToWorkloads:
    - webservice
    - worker
  schematic:
    cue:
      template: |-
        patch: {
          spec: template: spec: {
              if parameter.affinity != _|_ {
                  affinity: nodeAffinity: requiredDuringSchedulingIgnoredDuringExecution: nodeSelectorTerms: [{
                      matchExpressions: [
                          for k, v in parameter.affinity {
                              key:      k
                              operator: "In"
                              values:   v
                          },
                      ]}]
              }
              if parameter.tolerations != _|_ {
                  tolerations: [
                      for k, v in parameter.tolerations {
                          effect:   "NoSchedule"
                          key:      k
                          operator: "Equal"
                          value:    v
                      }]
              }
          }
        }
        parameter: {
          affinity?: [string]: [...string]
          tolerations?: [string]: string
        }