k8s crd设置额外header

可以通过设置crd.spec.additionalPrinterColumns来实现：

apiVersion: apiextensions.k8s.io/v1
kind: CustomResourceDefinition
metadata:name: crontabs.stable.example.com
spec:group: stable.example.comscope: Namespacednames:plural: crontabssingular: crontabkind: CronTabshortNames:- ctversions:- name: v1served: truestorage: trueschema:openAPIV3Schema:type: objectproperties:spec:type: objectproperties:cronSpec:type: stringimage:type: stringreplicas:type: integeradditionalPrinterColumns:- name: Spectype: stringdescription: The cron spec defining the interval a CronJob is runjsonPath: .spec.cronSpec- name: Replicastype: integerdescription: The number of jobs launched by the CronJobjsonPath: .spec.replicas- name: Agetype: datejsonPath: .metadata.creationTimestamp

参考：

使用 CustomResourceDefinition 扩展 Kubernetes API | Kubernetes