在 Kubernetes kustomize 构建中禁用顺序/排序

问题描述 投票:0回答:2

尝试使用

kustomize
修补 Kubernetes 资源。但是,输出中
initContainers
列表的顺序/顺序不同。

例如输入为

apiVersion: v1
kind: Pod
metadata:
  name: myapp-pod
  labels:
    app: myapp
spec:
  containers:
    - name: myapp-container
      image: busybox:1.28
      command: ['sh', '-c', 'echo The app is running! && sleep 3600']
  initContainers:
    - name: init-mydb
      image: busybox:1.28
      command: ['sh', '-c', "sleep 3600"]
    - name: init-myservice
      image: busybox:1.28
      command: ['sh', '-c', "sleep 7200"]

打补丁后,输出变成

apiVersion: v1
kind: Pod
metadata:
  labels:
    app: myapp
  name: myapp-pod
spec:
  containers:
  - command:
    - sh
    - -c
    - echo The app is running! && sleep 3600
    image: busybox:1.28
    name: myapp-container
  initContainers:
  - command:
    - sh
    - -c
    - sleep 7200
    env:
    - name: HTTP_ADDR
      value: https://[$(HOST_IP)]:8501
    image: busybox:1.28
    name: init-myservice
  - command:
    - sh
    - -c
    - sleep 3600
    env:
    - name: HTTP_ADDR
      value: https://[$(HOST_IP)]:8501
    image: busybox:1.28
    name: init-mydb

已尝试使用

--reorder
参数,但没有帮助。

测试版本:

{Version:kustomize/v4.1.3 GitCommit:0f614e92f72f1b938a9171b964d90b197ca8fb68 BuildDate:2021-05-20T20:52:40Z GoOs:linux GoArch:amd64} 

kustomization.yaml

apiVersion: kustomize.config.k8s.io/v1beta1
kind: Kustomization
resources:
  - source.yaml
patches:
  - path: ./pod-patch.yaml
    target:
      kind: Pod
      name: ".*"

pod-patch.yaml

apiVersion: apps/v1
kind: Pod
metadata:
  name: doesNotMatter
spec:
  initContainers:
    - name: init-myservice
      env:
        - name: HTTP_ADDR
          value: https://[$(HOST_IP)]:8501
    - name: init-mydb
      env:
        - name: HTTP_ADDR
          value: https://[$(HOST_IP)]:8501
kubernetes kubernetes-helm kustomize
2个回答
0
投票

这实际上是 Kustomize >3.0 引入的一个(恕我直言)错误。

参见:https://github.com/kubernetes-sigs/kustomize/issues/3912#issuecomment-1022218731 引用 Github 的 severinraez :

“我现在使用的解决方法(v4.4.0)是在补丁中以正确的顺序引用 initContainers,但不更改它们”

apiVersion: apps/v1
kind: Pod
metadata:
  name: doesnotmatter
spec:
  template:
    spec:
      initContainers:
        - name: init-mydb # required so order does not change
        - name: init-myservice
          command:
            - "/usr/bin/bash"
            - "-c"
            - "do what ever needs to be done"
[...]

tl;dr:按所需顺序将所有初始化容器添加到补丁中


-1
投票

这不是问题。顺序不同,因为您在

pod-patch.yaml
中颠倒了它。

source.yaml
中,
initContainers
的顺序是
[init-mydb, init-myservice]
。在
pod-patch.yaml
中,它是
[init-myservice, init-mydb]

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