带有 GPD 卷的 Container-VM 映像失败并显示“无法获取 GCE 云提供程序.plugin.host.GetCloudProvider 返回 <nil>而是“ [英] Container-VM Image with GPD Volumes fails with "Failed to get GCE Cloud Provider. plugin.host.GetCloudProvider returned <nil> instead"

问题描述

我目前尝试从Container-Optimized Google Compute Engine Images"(https://cloud.google.com/compute/docs/containers/container_vms)到Container-VM"映像(https://cloud.google.com/compute/docs/containers/vm-image/#overview).在我的 containers.yaml 中，我定义了一个卷和一个使用该卷的容器.

I currently try to switch from the "Container-Optimized Google Compute Engine Images" (https://cloud.google.com/compute/docs/containers/container_vms) to the "Container-VM" Image (https://cloud.google.com/compute/docs/containers/vm-image/#overview). In my containers.yaml, I define a volume and a container using the volume.

apiVersion: v1
kind: Pod
metadata:
  name: workhorse
spec:
  containers:
    - name: postgres
      image: postgres:9.5
      imagePullPolicy: Always
      volumeMounts:
        - name: postgres-storage
          mountPath: /var/lib/postgresql/data
  volumes:
    - name: postgres-storage
      gcePersistentDisk:
        pdName: disk-name
        fsType: ext4

此设置在Container-Optimized Google Compute Engine Images"中运行良好，但在Container-VM"中失败.在日志中，我可以看到以下错误:

This setup worked fine with the "Container-Optimized Google Compute Engine Images", however fails with the "Container-VM". In the logs, I can see the following error:

May 24 18:33:43 battleship kubelet[629]: E0524 18:33:43.405470 629 gce_util.go:176]
Error getting GCECloudProvider while detaching PD "disk-name":
Failed to get GCE Cloud Provider. plugin.host.GetCloudProvider returned <nil> instead

提前感谢您的任何提示！

Thanks in advance for any hint!

推荐答案

仅当 kubelet 在没有 --cloud-provider=gce 标志的情况下运行时才会发生这种情况.除非有不同，否则问题取决于 GCP 如何启动 Container-VM.

This happens only when kubelet is run without the --cloud-provider=gce flag. The problem, unless is something different, is dependant on how GCP is launching Container-VMs.

请与谷歌云平台的人联系.

Please contact with google cloud platform guys.

请注意，如果您在使用 GCE 时遇到这种情况: 将 --cloud-provider=gce 标志添加到您所有工作人员的 kubelet 中.这仅适用于 1.2 集群版本，因为如果我没记错的话，有一个针对 1.3 集群的持续附加/分离设计这会将这个业务逻辑移出 kubelet.

Note if this happens to you when using GCE: Add --cloud-provider=gce flag to kubelet in all your workers. This only applies to 1.2 cluster versions because, if i'm not wrong, there is an ongoing attach/detach design targeted for 1.3 clusters which will move this business logic out of kubelet.

如果有人对此处的附加/分离重新设计感兴趣，这是其相应的 github 问题:https://github.com/kubernetes/kubernetes/issues/20262

In case someone is interested in the attach/detach redesign here it is its corresponding github issue: https://github.com/kubernetes/kubernetes/issues/20262

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