Kubernetes kubelet无法提取映像-x509:由未知权限签名的证书

我正在尝试在Windows 7上的VMware Workstation上运行的CentOS 7.3系统群集上安装Kubernetes 1.9.0，遵循Kubernetes the hard way教程。当我进入教程中的验证阶段并尝试启动busybox部署时，pod状态仍然停留在ContainerCreating

pod应该运行的节点的kubelet日志显示以下错误消息：

failed to get sandbox image \"gcr.io/google_containers/pause:3.0\":
failed to pull image \"gcr.io/google_containers/pause:3.0\":
failed to pull image \"gcr.io/google_containers/pause:3.0\":
httpReaderSeeker: failed open: failed to do request:
Get https://storage.googleapis.com/artifacts.google-containers.appspot.com/containers/images/sha256:f112334343777b75be77ec1f835e3bbbe7d7bd46e27b6a2ae35c6b3cfea0987c: x509: certificate signed by unknown authority

我将这两个域添加到/etc/docker/daemon.json中的不安全注册表列表中：

{
  "insecure-registries" : ["gcr.io"],
  "insecure-registries" : ["googleapis.com"]
}

Docker能够从命令行中提取图像：

docker pull gcr.io/google_containers/pause:3.0
Trying to pull repository gcr.io/google_containers/pause ...
3.0: Pulling from gcr.io/google_containers/pause
a3ed95caeb02: Pull complete
f11233434377: Pull complete
Digest: sha256:0d093c962a6c2dd8bb8727b661e2b5f13e9df884af9945b4cc7088d9350cd3ee

你知道为什么kubelet无法提取图像吗

谢谢， TI

daemon.json中的语法为

此外，根据您正在访问的注册表，您可能必须执行kubectl创建机密docker注册表。。。所解释的行动

最后，您可能需要通过在/etc/docker/certs.d中创建一个包含证书的新目录来定义docker证书，如前所述

"insecure-registries" : ["gcr.io" , "googleapis.com"]