服务器信息

在阿里云买了个抢占式的服务器，地区为华南广州，系统为Ubuntu 20.04，8核16GB。

安装Docker

命令如下：

$ apt-get update -y
$ apt-get upgrade -y
$ apt-get install -y docker.io

安装成功后，检查一下版本：

$ docker version
Client:
 Version:           20.10.7
 API version:       1.41
 Go version:        go1.13.8
 Git commit:        20.10.7-0ubuntu5~20.04.2
 Built:             Mon Nov  1 00:34:17 2021
 OS/Arch:           linux/amd64
 Context:           default
 Experimental:      true

Server:
 Engine:
  Version:          20.10.7
  API version:      1.41 (minimum version 1.12)
  Go version:       go1.13.8
  Git commit:       20.10.7-0ubuntu5~20.04.2
  Built:            Fri Oct 22 00:45:53 2021
  OS/Arch:          linux/amd64
  Experimental:     false
 containerd:
  Version:          1.5.5-0ubuntu3~20.04.1
  GitCommit:        
 runc:
  Version:          1.0.1-0ubuntu2~20.04.1
  GitCommit:        
 docker-init:
  Version:          0.19.0
  GitCommit:        

要修改Docker配置文件，让它可以使用私有的registry：

cat << EOF | sudo tee /etc/docker/daemon.json 
 {
     "insecure-registries" : [ "172.30.0.0/16" ]
 }
EOF

然后重启一下Docker即可：

systemctl restart docker

安装OpenShift

下载并解压对应的可执行文件：

# 下载
$ wget https://github.com/openshift/origin/releases/download/v3.11.0/openshift-origin-client-tools-v3.11.0-0cbc58b-linux-64bit.tar.gz

# 解压
$ tar xvf openshift-origin-client-tools-v3.11.0-0cbc58b-linux-64bit.tar.gz 

# 复制到bin目录
$ cp openshift-origin-client-tools-v3.11.0-0cbc58b-linux-64bit/oc /usr/local/bin/
$ cp openshift-origin-client-tools-v3.11.0-0cbc58b-linux-64bit/kubectl /usr/local/bin/

# 检查版本
$ oc version
oc v3.11.0+0cbc58b
kubernetes v1.11.0+d4cacc0
features: Basic-Auth GSSAPI Kerberos SPNEGO

启动集群，第一次需要比较长的时候，因为需要下载镜像：

$ oc cluster up
Getting a Docker client ...
Checking if image openshift/origin-control-plane:v3.11 is available ...
Creating shared mount directory on the remote host ...
Determining server IP ...
Checking if OpenShift is already running ...
Checking for supported Docker version (=>1.22) ...
Checking if insecured registry is configured properly in Docker ...
Checking if required ports are available ...
Checking if OpenShift client is configured properly ...
Checking if image openshift/origin-control-plane:v3.11 is available ...
Starting OpenShift using openshift/origin-control-plane:v3.11 ...
I0301 22:24:39.111730   51771 flags.go:30] Running "create-kubelet-flags"
I0301 22:24:39.541760   51771 run_kubelet.go:49] Running "start-kubelet"
I0301 22:24:39.624336   51771 run_self_hosted.go:181] Waiting for the kube-apiserver to be ready ...
I0301 22:25:30.631581   51771 interface.go:26] Installing "kube-proxy" ...
I0301 22:25:30.631597   51771 interface.go:26] Installing "kube-dns" ...
I0301 22:25:30.631604   51771 interface.go:26] Installing "openshift-service-cert-signer-operator" ...
I0301 22:25:30.631609   51771 interface.go:26] Installing "openshift-apiserver" ...
I0301 22:25:30.631624   51771 apply_template.go:81] Installing "openshift-apiserver"
I0301 22:25:30.631673   51771 apply_template.go:81] Installing "kube-dns"
I0301 22:25:30.631682   51771 apply_template.go:81] Installing "openshift-service-cert-signer-operator"
I0301 22:25:30.631689   51771 apply_template.go:81] Installing "kube-proxy"
I0301 22:25:31.680155   51771 interface.go:41] Finished installing "kube-proxy" "kube-dns" "openshift-service-cert-si