kubeadm config images pull 时报错：
1·W1114 13:07:39.744320   16239 version.go:101] could not fetch a Kubernetes version from the internet: unable to get URL "https://dl.k8s.io/release/stable-1.txt": Get https://dl.k8s.io/release/stable-1.txt: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)
W1114 13:07:39.744396   16239 version.go:102] falling back to the local client version: v1.16.2
failed to pull image "k8s.gcr.io/kube-apiserver:v1.16.2": output: Error response from daemon: Get https://k8s.gcr.io/v2/: proxyconnect tcp: dial tcp 172.96.236.117:10070: connect: connection refused
, error: exit status 1
To see the stack trace of this error execute with --v=5 or higher

解决办法：kubeadm init --image-repository registry.aliyuncs.com/google_containers --ignore-preflight-errors=Swap

如果你的/usr/lib/systemd/system/docker.service文件有类似如下两行配置
1·Environment="HTTPS_PROXY=http://www.ik8s.io:10080"
2·Environment="NO_PROXY=127.0.0.0/8,172.20.0.0/16"
请把这两行注释