web-UI:
kubernetes-dashboard.yml

remote_runtime.go:92] RunPodSandbox from runtime service failed: rpc error: code = Unknown desc = failed pulling image "gcr.io/google_containers/pause-amd64:3.0": Error response from daemon: Get https://gcr.io/v2/: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)

docker pull registry.cn-hangzhou.aliyuncs.com/imooc/pause-amd64:3.0
docker tag registry.cn-hangzhou.aliyuncs.com/imooc/pause-amd64:3.0 gcr.io/google_containers/pause-amd64:3.0
docker pull 1178493925/pause-amd64:3.0
docker pull gcr.io/google_containers/pause-amd64:3.0