使用国内源及相关小工具

国内镜像源

Azure China提供了目前用过的质量最好的镜像源，涵盖了docker.io，gcr.io，quay.io。无论是速度还是覆盖范围，体验都极佳。而且都支持匿名拉取，也就是不需要登录。这点特别友好。azk8s.cn支持的镜像代理转换如下列表。

global	proxy in China	format	example
dockerhub (docker.io)	dockerhub.azk8s.cn	`dockerhub.azk8s.cn//:`	`dockerhub.azk8s.cn/microsoft/azure-cli:2.0.61` `dockerhub.azk8s.cn/library/nginx:1.15`
gcr.io	gcr.azk8s.cn	`gcr.azk8s.cn//:`	`gcr.azk8s.cn/google_containers/hyperkube-amd64:v1.13.5`
quay.io	quay.azk8s.cn	`quay.azk8s.cn//:`	`quay.azk8s.cn/deis/go-dev:v1.10.0`

Note: k8s.gcr.io would redirect to gcr.io/google-containers, following image urls are identical:

k8s.gcr.io/pause-amd64:3.1
gcr.io/google_containers/pause-amd64:3.1

这里，我开发了一个小的脚本azk8spull，这个脚本可以自动根据镜像名称进行解析，转换为azure的mirror镜像源域名。并进行拉取。拉取完成后会自动进行tag重命名为原本的镜像名。该脚本已经开源在 https://github.com/xuxinkun/littleTools#azk8spull 上。以下是使用样例。

安装 azk8spull

git clone https://github.com/xuxinkun/littleTools
cd littleTools
chmod +x install.sh
./install.sh
source /etc/profile

[root@node-64-216 ~]\# azk8spull quay.io/kubernetes-ingress-controller/nginx-ingress-controller:0.24.1
## azk8spull try to pull image from mirror quay.azk8s.cn/kubernetes-ingress-controller/nginx-ingress-controller:0.24.1.
0.24.1: Pulling from kubernetes-ingress-controller/nginx-ingress-controller
Digest: sha256:76861d167e4e3db18f2672fd3435396aaa898ddf4d1128375d7c93b91c59f87f
Status: Image is up to date for quay.azk8s.cn/kubernetes-ingress-controller/nginx-ingress-controller:0.24.1
## azk8spull try to tag quay.azk8s.cn/kubernetes-ingress-controller/nginx-ingress-controller:0.24.1 to quay.io/kubernetes-ingress-controller/nginx-ingress-controller:0.24.1.
## azk8spull finish pulling.

[root@node-64-216 ~]\# azk8spull k8s.gcr.io/pause-amd64:3.1
## azk8spull try to pull image from mirror gcr.azk8s.cn/google_containers/pause-amd64:3.1.
3.1: Pulling from google_containers/pause-amd64
Digest: sha256:59eec8837a4d942cc19a52b8c09ea75121acc38114a2c68b98983ce9356b8610
Status: Image is up to date for gcr.azk8s.cn/google_containers/pause-amd64:3.1
## azk8spull try to tag gcr.azk8s.cn/google_containers/pause-amd64:3.1 to k8s.gcr.io/pause-amd64:3.1.
## azk8spull finish pulling.

kubeadm源

kubeadm直接使用阿里云的源即可。速度也比较快。

# Debian/Ubuntu
apt-get update && apt-get install -y apt-transport-https
curl -s https://mirrors.aliyun.com/kubernetes/apt/doc/apt-key.gpg | apt-key add -
cat <<EOF >/etc/apt/sources.list.d/kubernetes.list
deb https://mirrors.aliyun.com/kubernetes/apt/ kubernetes-xenial main
EOF
apt-get update
apt-get install -y kubelet kubeadm kubectl

# CentOS/RHEL/Fedora
cat <<EOF > /etc/yum.repos.d/kubernetes.repo
[kubernetes]
name=Kubernetes
baseurl=https://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64/
enabled=1
gpgcheck=1
repo_gpgcheck=1
gpgkey=https://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg https://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg
EOF
setenforce 0
yum install -y kubelet kubeadm kubectl

参考链接

该文章转载自：https://xuxinkun.github.io/2019/06/11/cn-registry/