Question

根据official documentation，我应该能够使用一些漂亮的kustomization语法轻松覆盖docker镜像的标签和名称。我试图重现这一点。

在我的deployment.yaml中，我有以下内容：

apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  labels:
    service: my-app
  name: my-app
spec:
  strategy:
    type: Recreate
  template:
    metadata:
      labels:
        service: my-app
    spec:
      imagePullSecrets:
      - name: my-docker-secret
      containers:
      - name: my-app
        image: the-my-app
        imagePullPolicy: Always
        ports:
        - containerPort: 1234
      restartPolicy: Always

在我的kustomization.yaml中，我有以下内容：

bases:
- ../base
resources:
- deployment.yaml
namespace: my-namespace

images:
- name: the-my-app
- newName: my.docker.registry.com/my-project/my-app
  newTag: test

但是，当我这样做时：

kubectl apply -k my-kustomization-dir

，等待部署加速，然后再做

kubectl describe pod/my-app-xxxxxxxxx-xxxxx

事件如下：

Events:
  Type     Reason                  Age                From                                              Message
  ----     ------                  ----               ----                                              -------
  Successfully assigned my-namespace/my-app-xxxxxxxxxx-xxxxx to default-pool-xxxxxxxxxx-xxxxx
  Normal   Pulling                 2s                 kubelet, default-pool-xxxxxxxxxx-xxxxx  pulling image "the-my-app"
  Warning  Failed                  0s                 kubelet, default-pool-xxxxxxxxxx-xxxxx  Failed to pull image "the-my-app": rpc error: code = Unknown desc = Error response from daemon: pull access denied for the-my-app, repository does not exist or may require 'docker login'
  Warning  Failed                  0s                 kubelet, default-pool-xxxxxxxxxx-xxxxx  Error: ErrImagePull
  Normal   BackOff                 0s                 kubelet, default-pool-xxxxxxxxxx-xxxxx  Back-off pulling image "the-my-app"
  Warning  Failed                  0s                 kubelet, default-pool-xxxxxxxxxx-xxxxx  Error: ImagePullBackOff

表明此操作未按预期进行（尝试提取deployment.yaml中指定的原始名称）。

所以我的问题是，我在这里做错了什么？

Answer 1

您必须在图像部分下的newName行中删除“-”。应该是这样，它是可行的。

 images:
 - name: the-my-app
   newName: my.docker.registry.com/my-project/my-app
   newTag: test

Answer 2

您可以运行kustomize build my-kustomization-dir来检查图像是否在yaml文件中被替换。此命令使您可以查看将在集群中应用的图像。

使用kustomization.yaml更改图像标签和名称

2 个答案: