Question

如何引用存在的本地图像？

kubectl run u --rm -i --tty --image my_local_image -- bash

ImagePullBackOff和kubectl中的结果显然是试图从远程存储库而不是本地寄存器中提取。

此answer没有帮助，后续内容涉及minikube和kubernetes。

一些事件日志

Events:
  Type     Reason                 Age               From                         Message
  ----     ------                 ----              ----                         -------
  Normal   Scheduled              1m                default-scheduler            Successfully assigned u-6988b9c446-zcp99 to docker-for-desktop
  Normal   SuccessfulMountVolume  1m                kubelet, docker-for-desktop  MountVolume.SetUp succeeded for volume "default-token-q2qm7"
  Normal   SandboxChanged         1m                kubelet, docker-for-desktop  Pod sandbox changed, it will be killed and re-created.
  Normal   Pulling                23s (x3 over 1m)  kubelet, docker-for-desktop  pulling image "centos_postgres"
  Warning  Failed                 22s (x3 over 1m)  kubelet, docker-for-desktop  Failed to pull image "centos_postgres": rpc error: code = Unknown desc = Error response from daemon: pull access denied for centos_postgres, repository does not exist or may require 'docker login'
  Warning  Failed                 22s (x3 over 1m)  kubelet, docker-for-desktop  Error: ErrImagePull
  Normal   BackOff                9s (x5 over 1m)   kubelet, docker-for-desktop  Back-off pulling image "centos_postgres"
  Warning  Failed                 9s (x5 over 1m)   kubelet, docker-for-desktop  Error: ImagePullBackOff

Answer 1

Kubernetes Pod有一个imagePullPolicy字段。如果将其设置为Never，它将永远不会尝试提取图像，并且要确保由kubelet使用的docker守护进程包含该图像。默认策略为IfNotPresent，如果docker守护程序中已存在映像，则该策略应与Never相同。仔细检查您的docker守护进程实际上是否包含您认为的内容，并确保您的imagePullPolicy设置为我提到的两个之一。

apiVersion: v1
kind: Pod
metadata:
  name: my-pod
spec:
  containers:
    - name: my-image
      image: local-image-name
      imagePullPolicy: Never

从本地docker镜像运行kubectl？

1 个答案: