Kustomize patchesStrategicMerge

在使用补丁机制的时候，要尽量保证每一个补丁只做一件事

原始 nginx.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    workload.user.cattle.io/workloadselector: deployment-lizhe-nginx
  name: nginx
  namespace: lizhe
spec:
  replicas: 1
  revisionHistoryLimit: 10
  selector:
    matchLabels:
      workload.user.cattle.io/workloadselector: deployment-lizhe-nginx
  strategy:
    rollingUpdate:
      maxSurge: 1
      maxUnavailable: 0
    type: RollingUpdate
  template:
    metadata:
      labels:
        workload.user.cattle.io/workloadselector: deployment-lizhe-nginx
    spec:
      containers:
      - image: nginx
        imagePullPolicy: Always
        name: nginx
        resources: {}
        stdin: true
        tty: true
      restartPolicy: Always
      terminationGracePeriodSeconds: 30

kustomization.yaml

apiVersion: kustomize.config.k8s.io/v1beta1
kind: Kustomization
resources:
- nginx.yaml
namePrefix: prod-
patchesStrategicMerge:
- increase_replicas.yaml
- set_memory.yaml

increase_replicas.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx
  namespace: lizhe
spec:
  replicas: 10

set_memory.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx
  namespace: lizhe
spec:
  template:
    spec:
      containers:
      - name: my-nginx
        resources:
          limits:
            memory: 512Mi