Kubernetes 如何利用kubectl补丁部署来更新环境变量？

我正在尝试修补部署，但我一直点击deployment.extensions/velero未修补

我尝试了以下几种不同的变体：

kubectl patch deployment velero -n velero -p '{"spec":{"containers":[{"env":[{"name":"AWS_CLUSTER_NAME","value":"test-cluster"}]}]}}'

我的初始部署.yaml文件

apiVersion: apps/v1
kind: Deployment
metadata:
  name: velero
  labels:
    app.kubernetes.io/name: velero
    app.kubernetes.io/instance: velero
    app.kubernetes.io/managed-by: Tiller
    helm.sh/chart: velero-2.1.1
spec:
  replicas: 1
  selector:
    matchLabels:
      app.kubernetes.io/instance: velero
      app.kubernetes.io/name: velero
  template:
    metadata:
      labels:
        app.kubernetes.io/name: velero
        app.kubernetes.io/instance: velero
        app.kubernetes.io/managed-by: Tiller
        helm.sh/chart: velero-2.1.1
    spec:
      restartPolicy: Always
      serviceAccountName: velero-server
      containers:
        - name: velero
          image: "gcr.io/heptio-images/velero:v1.0.0"
          imagePullPolicy: IfNotPresent
          command:
            - /velero
          args:
            - server
          volumeMounts:
            - name: plugins
              mountPath: /plugins
            - name: cloud-credentials
              mountPath: /credentials
            - name: scratch
              mountPath: /scratch
          env:
            - name: AWS_SHARED_CREDENTIALS_FILE
              value: /credentials/cloud
            - name: VELERO_SCRATCH_DIR
              value: /scratch
      volumes:
        - name: cloud-credentials
          secret:
            secretName: cloud-credentials
        - name: plugins
          emptyDir: {}
        - name: scratch
          emptyDir: {}

---

我现在有点困了，担心我可能会走错方向。如果您有任何建议，我们将不胜感激。

由于您正在修补部署，因此命令中的JSON for patch并不准确。您可能需要尝试以下操作：

kubectl patch deployment velero -n velero -p '{"spec":{"containers":[{"env":[{"name":"AWS_CLUSTER_NAME","value":"test-cluster"}]}]}}'

---

kubectl补丁部署velero-p'{“spec”：{“template”：{“spec”：{“containers”：[{“env”：[{“name”：“AWS_CLUSTER_name”，“value”：“test CLUSTER”}]}}}}}}}}

您已经在

默认

命名空间中部署了velera部署，并且您正试图在

velera

命名空间中进行补丁

此外，您的修补程序字符串无效。请尝试以下方法：

$ kubectl patch deployment velero -p '{"spec":{"template":{"spec":{"containers":[{"env":[{"name":"AWS_CLUSTER_NAME","value":"test-cluster"}],"name":"velero"}]}}}}'
deployment.extensions/velero patched

注意：我的客户端和服务器版本是：

$ kubectl version
Client Version: version.Info{Major:"1", Minor:"15", GitVersion:"v1.15.3", GitCommit:"2d3c76f9091b6bec110a5e63777c332469e0cba2", GitTreeState:"clean", BuildDate:"2019-08-19T11:13:54Z", GoVersion:"go1.12.9", Compiler:"gc", Platform:"linux/amd64"}
Server Version: version.Info{Major:"1", Minor:"15", GitVersion:"v1.15.2", GitCommit:"f6278300bebbb750328ac16ee6dd3aa7d3549568", GitTreeState:"clean", BuildDate:"2019-08-05T09:15:22Z", GoVersion:"go1.12.5", Compiler:"gc", Platform:"linux/amd64"}

除了命令外，还可以使用更新k8s部署的环境变量

kubectl set env deployment/velero AWS_CLUSTER_NAME=test-cluster

---

希望这有帮助。

除了

补丁

之外，还有另一个选项可以更改现有部署中的值

您还可以执行编辑命令，并以YAML格式添加/编辑值。那么你必须保存它

$ kubectl edit deployment velero -o yaml

或者，如果你不喜欢

vi

，你可以用nano来做

$ KUBE_EDITOR="nano" kubectl edit deployment/velero

---

试试这个。希望可以帮助您使用它来设置或删除init容器中的环境变量吗？