docker rpc error: code = 14 desc = grpc: the connection is unavailable

执行如下命令

docker-containerd -l unix:///var/run/docker/libcontainerd/docker-containerd.sock --metrics-interval=0 --start-timeout 2m --state-dir /var/run/docker/libcontainerd/containerd --shim docker-containerd-shim --runtime docker-runc --debug

推荐：https://rorschachchan.github.io/2018/09/29/%E5%AE%B9%E5%99%A8%E6%8A%A5%E9%94%99%EF%BC%9Arpc-error-code-14-desc-grpc-the-connection-is-unavailable/