使用Kustomize替换列表中项目的内容

Question

我在尝试自定义以替换列表中项目的内容时遇到困难。

My customization file

apiVersion: kustomize.config.k8s.io/v1beta1
kind: Kustomization
resources:
- resource.yaml
patches:
- patch.yaml

我的补丁。yaml文件

apiVersion: apps/v1
kind: Deployment
metadata:
name: web-service
spec:
template:
spec:
initContainers:
- name: web-service-migration
env:
- name: PG_DATABASE
value: web-pgdb

我resource.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
name: web-service
spec:
template:
spec:
initContainers:
- name: web-service-migration
env:
- name: PG_DATABASE
valueFrom:
secretKeyRef:
name: web-pgdb
key: database

自定义构建返回

apiVersion: apps/v1
kind: Deployment
metadata:
name: web-service
spec:
template:
spec:
initContainers:
- env:
- name: PG_DATABASE
value: web-pgdb
valueFrom:
secretKeyRef:
key: database
name: web-pgdb
name: web-service-migration

我想定制的构建返回

apiVersion: apps/v1
kind: Deployment
metadata:
name: web-service
spec:
template:
spec:
initContainers:
- env:
- name: PG_DATABASE
value: web-pgdb
name: web-service-migration

Answer 1

如果我没记错的话，自定义中的补丁默认使用策略合并，所以你需要取消valueFrom，所以你的补丁应该看起来像:

apiVersion: apps/v1
kind: Deployment
metadata:
name: web-service
spec:
template:
spec:
initContainers:
- name: web-service-migration
env:
- name: PG_DATABASE
value: web-pgdb
valueFrom: null 

更多关于策略合并补丁和如何删除地图的详细信息:https://github.com/kubernetes/community/blob/master/contributors/devel/sig-api-machinery/strategic-merge-patch.md#maps