Kubernetes自动化一键部署脚本

时间：2022-12-30 15:57:04

Kubernetes 简介

Kubernetes是一个开源的，用于管理云平台中多个主机上的容器化的应用，Kubernetes的目标是让部署容器化的应用简单并且高效（powerful）,Kubernetes提供了应用部署，规划，更新，维护的一种机制。

Kubernetes一个核心的特点就是能够自主的管理容器来保证云平台中的容器按照用户的期望状态运行着（比如用户想让apache一直运行，用户不需要关心怎么去做，Kubernetes会自动去监控，然后去重启，新建，总之，让apache一直提供服务），管理员可以加载一个微型服务，让规划器来找到合适的位置，同时，Kubernetes也系统提升工具以及人性化方面，让用户能够方便的部署自己的应用（就像canary deployments）。

此脚本使用的是kubeadm方式安装，有需要的朋友可以参考下。

系统环境：

操作系统：Centos 7.8

脚本功能：

1、支持kubernetes版本选择

2、支持Dcoker-ce版本选择

3、支持Master、Node节点安装

注意：Node需要跟Master做好免密钥哦

PS：脚本下载链接在底部

脚本内容如下：

[root@localhost ~]# vim auto_install_kubernetes.sh

  1. #!/bin/bash
  2. #Date：2020-9-8 09:41:00
  3. #Author Blog:
  4. # https://www.yangxingzhen.com
  5. # https://www.i7ti.cn
  6. #Author WeChat：
  7. # 微信公众号：小柒博客
  8. #Author mirrors site:
  9. # https://mirrors.yangxingzhen.com
  10. #About the Author
  11. # BY：YangXingZhen
  12. # Mail：xingzhen.yang@yangxingzhen.com
  13. # QQ：675583110
  14. #Auto Install Kubernetes

  16. source /etc/init.d/functions

  18. SYS_VERSION=$(cat /etc/redhat-release)
  19. IPADDR=$(hostname -I |awk '{print $1}')
  20. Uptime_day=$(uptime |awk '{print $3,$4}')
  21. CPU_NUM=$(grep -c 'processor'/proc/cpuinfo)
  22. Uptime=$(uptime -p |awk '{print $6,$7,$8,$9}')
  23. MEM_INFO=$(free -m |awk '/Mem/ {print "内存容量:",$2"M"}')
  24. CPU_Model=$(awk -F:'/name/ {print $NF}'/proc/cpuinfo |uniq)
  25. MEM_Avail=$(free -m |awk '/Mem/ {print "内存可用容量:",$4"M"}')
  26. DISK_INFO=$(df -h |grep -w "/"|awk '{print "磁盘容量:",$1,$2}')
  27. DISK_Avail=$(df -h |grep -w "/"|awk '{print "磁盘可用容量:",$1,$4}')
  28. LOAD_INFO=$(uptime |awk '{print "CPU负载: "$(NF-2),$(NF-1),$NF}'|sed 's/\,//g')

  30. if[ ${UID}-ne 0];then
  31. action "请使用ROOT用户运行Kubernetes安装脚本..."/bin/false
  32. exit1
  33. fi

  35. functionKubernetes_Version(){
  36. echo -e "\033[32mVersion：1.19.0 Available...\033[0m"
  37. echo -e "\033[32mVersion：1.18.8 Available...\033[0m"
  38. echo -e "\033[32mVersion：1.18.6 Available...\033[0m"
  39. echo -e "\033[32mVersion：1.18.5 Available...\033[0m"
  40. echo -e "\033[32mVersion：1.18.4 Available...\033[0m"
  41. echo -e "\033[32mVersion：1.18.3 Available...\033[0m"
  42. echo -e "\033[32mVersion：1.18.2 Available...\033[0m"
  43. echo -e "\033[32mVersion：1.18.1 Available...\033[0m"
  44. echo -e "\033[32mVersion：1.18.0 Available...\033[0m"
  45. echo -e "\033[32mVersion：1.17.11 Available...\033[0m"
  46. echo -e "\033[32mVersion：1.17.9 Available...\033[0m"
  47. echo -e "\033[32mVersion：1.17.8 Available...\033[0m"
  48. echo -e "\033[32mVersion：1.17.7 Available...\033[0m"
  49. echo -e "\033[32mVersion：1.17.6 Available...\033[0m"
  50. echo -e "\033[32mVersion：1.17.5 Available...\033[0m"
  51. echo -e "\033[32mVersion：1.17.4 Available...\033[0m"
  52. echo -e "\033[32mVersion：1.17.3 Available...\033[0m"
  53. echo -e "\033[32mVersion：1.17.2 Available...\033[0m"
  54. echo -e "\033[32mVersion：1.17.1 Available...\033[0m"
  55. echo -e "\033[32mVersion：1.17.0 Available...\033[0m"
  56. }

  58. function system_info (){
  59. echo -e "\033[32m-------------System Infomation-------------\033[0m"
  60. echo -e "\033[32m>>>>>> 系统运行时间：${Uptime_day}${Uptime} \033[0m"
  61. echo -e "\033[32m>>>>>> 操作系统: ${SYS_VERSION} \033[0m"
  62. echo -e "\033[32m>>>>>> 内网IP: ${IPADDR} \033[0m"
  63. echo -e "\033[32m>>>>>> CPU型号:${CPU_Model} \033[0m"
  64. echo -e "\033[32m>>>>>> CPU核数: ${CPU_NUM} \033[0m"
  65. echo -e "\033[32m>>>>>> ${DISK_INFO} \033[0m"
  66. echo -e "\033[32m>>>>>> ${DISK_Avail} \033[0m"
  67. echo -e "\033[32m>>>>>> ${MEM_INFO} \033[0m"
  68. echo -e "\033[32m>>>>>> ${MEM_Avail} \033[0m"
  69. echo -e "\033[32m>>>>>> ${LOAD_INFO} \033[0m"
  70. }

  72. functionInstall_Kubernetes_Master(){
  73. system_info
  74. echo -e "\033[32m================================================\033[0m"
  75. echo -e "\033[32m>>>>>> 正在安装Kubernetes版本：${Version}\033[0m"
  76. echo -e "\033[32m================================================\033[0m"
  77. echo -e "\033[32m>>>>>> 一键安装Kubernetes集群_Master端\033[0m"
  78. echo -e "\033[32m================================================\033[0m"
  79. echo -e "\033[32m>>>>>> 配置网易yum源\033[0m"
  80. mkdir -p /etc/yum.repos.d/bak
  81. \mv /etc/yum.repos.d/*.repo /etc/yum.repos.d/bak
  82. [ -f $(which wget) ] || yum -y install wget >/dev/null
  83. wget -q -P /etc/yum.repos.d http://mirrors.163.com/.help/CentOS7-Base-163.repo
  84. yum clean all >/dev/null
  85. yum makecache >/dev/null

  87. echo -e "\033[32m================================================\033[0m"
  88. echo -e "\033[32m>>>>>> 更新系统\033[0m"
  89. yum -y update >/dev/null

  91. echo -e "\033[32m================================================\033[0m"
  92. echo -e "\033[32m>>>>>> 关闭防火墙、selinux\033[0m"
  93. SYSTEM_VERSION=$(awk -F. '{print $1}' /etc/redhat-release |awk '{print $NF}')
  94. if [ ${SYSTEM_VERSION} -eq 6 ];then
  95. service iptables stop
  96. chkconfig iptables off
  97. sed -i "s/SELINUX=enforcing/SELINUX=disabled/g" /etc/selinux/config
  98. setenforce 0 >/dev/null
  99. else
  100. systemctl stop firewalld.service
  101. systemctl disable firewalld.service
  102. sed -i "s/SELINUX=enforcing/SELINUX=disabled/g" /etc/selinux/config
  103. setenforce 0 >/dev/null
  104. fi

  106. echo -e "\033[32m================================================\033[0m"
  107. echo -e "\033[32m>>>>>> 配置主机名\033[0m"
  108. hostnamectl set-hostname master

  110. echo -e "\033[32m================================================\033[0m"
  111. echo -e "\033[32m>>>>>> 配置hosts\033[0m"
  112. echo "${IPADDR} master" >>/etc/hosts

  114. echo -e "\033[32m================================================\033[0m"
  115. echo -e "\033[32m>>>>>> 关闭swap,注释swap分区\033[0m"
  116. swapoff -a
  117. sed -i '/swap/s/^/#/g' /etc/fstab

  119. echo -e "\033[32m================================================\033[0m"
  120. echo -e "\033[32m>>>>>> 配置内核参数,将桥接的IPv4流量传递到iptables的链\033[0m"
  121. cat >/etc/sysctl.d/k8s.conf <<EOF
  122. net.bridge.bridge-nf-call-ip6tables = 1
  123. net.bridge.bridge-nf-call-iptables = 1
  124. EOF
  125. modprobe br_netfilter
  126. sysctl -p /etc/sysctl.d/k8s.conf >/dev/null
  127. echo "1" > /proc/sys/net/ipv4/ip_forward

  129. echo -e "\033[32m================================================\033[0m"
  130. echo -e "\033[32m>>>>>> 安装Docker-ce、配置开机自启动、启动Docker\033[0m"
  131. rpm -qa |grep docker |grep -v grep >/dev/null
  132. if [ $? -ne 0 ];then
  133. #curl -fsSL https://get.docker.com | bash -s docker --mirror Aliyun
  134. yum -y install yum-utils device-mapper-persistent-data lvm2 >/dev/null
  135. yum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
  136. if [ ${Version} = "1.18.8" -o ${Version} = "1.19.0" ];then
  137. version="19.03.12"
  138. else
  139. version="18.09.9"
  140. fi
  141. yum -y install docker-ce-${version} docker-ce-cli-${version} containerd.io >/dev/null
  142. systemctl enable docker
  143. systemctl start docker
  144. if [ $? -eq 0 ];then
  145. echo -e "\033[32m================================================\033[0m"
  146. echo -e "\033[32m>>>>>> Docker Start Success...\033[0m"
  147. else
  148. echo -e "\033[32m================================================\033[0m"
  149. echo -e "\033[32m>>>>>> Docker Start Failed...\033[0m"
  150. exit 1
  151. fi
  152. else
  153. echo -e "\033[32m================================================\033[0m"
  154. echo -e "\033[32m>>>>>> Docker版本：$(docker --version |awk -F ',' '{print $1}') \033[0m"
  155. fi

  157. echo -e "\033[32m================================================\033[0m"
  158. echo -e "\033[32m>>>>>> 添加阿里云docker仓库加速器\033[0m"
  159. mkdir -p /etc/docker
  160. cat >/etc/docker/daemon.json <<EOF
  161. {
  162. "registry-mirrors": ["https://fl791z1h.mirror.aliyuncs.com"],
  163. "exec-opts": ["native.cgroupdriver=systemd"]
  164. }
  165. EOF
  166. systemctl daemon-reload
  167. systemctl restart docker

  169. echo -e "\033[32m================================================\033[0m"
  170. echo -e "\033[32m>>>>>> 添加阿里kubernetes源\033[0m"
  171. cat >/etc/yum.repos.d/kubernetes.repo <<EOF
  172. [kubernetes]
  173. name=Kubernetes
  174. baseurl=https://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64/
  175. enabled=1
  176. gpgcheck=1
  177. repo_gpgcheck=1
  178. gpgkey=https://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg https://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg
  179. EOF

  181. echo -e "\033[32m================================================\033[0m"
  182. echo -e "\033[32m>>>>>> 安装kubectl、kubelet、kubeadm\033[0m"
  183. yum -y install kubectl-${Version} kubelet-${Version} kubeadm-${Version} >/dev/null
  184. rpm -qa |grep kubelet >/dev/null
  185. if [ $? -eq 0 ];then
  186. systemctl enable kubelet
  187. systemctl start kubelet
  188. if [ $? -eq 0 ];then
  189. echo -e "\033[32m================================================\033[0m"
  190. action "kubelet-${Version} Start Success..." /bin/true
  191. else
  192. echo -e "\033[32m================================================\033[0m"
  193. action "kubelet-${Version} Start Failed..." /bin/false
  194. exit 1
  195. fi
  196. else
  197. action "kubelet-${Version} Install Failed..." /bin/false
  198. exit 1
  199. fi

  201. echo -e "\033[32m================================================\033[0m"
  202. echo -e "\033[32m>>>>>> 初始化k8s集群,这里指定版本为${Version}\033[0m"
  203. #echo "1" > /proc/sys/net/bridge/bridge-nf-call-iptables
  204. kubeadm init --kubernetes-version=${Version} \
  205. --apiserver-advertise-address=${IPADDR} \
  206. --image-repository registry.aliyuncs.com/google_containers \
  207. --service-cidr=172.16.0.0/16 --pod-network-cidr=172.17.0.0/16

  209. mkdir -p ${HOME}/.kube
  210. sudo cp -i /etc/kubernetes/admin.conf ${HOME}/.kube/config
  211. sudo chown $(id -u):$(id -g) ${HOME}/.kube/config

  213. echo -e "\033[32m================================================\033[0m"
  214. echo -e "\033[32m>>>>>> kubectl命令补全功能\033[0m"
  215. rpm -qa |grep bash-completion >/dev/null
  216. if [ $? -ne 0 ];then
  217. yum -y install bash-completion >/dev/null
  218. source /etc/profile.d/bash_completion.sh
  219. fi

  221. #grep "kubectl completion bash" ~/.bashrc >/dev/null
  222. #if [ $? -ne 0 ];then
  223. # echo "# kubectl命令补全功能" >> ~/.bashrc
  224. # echo "source <(kubectl completion bash)" >> ~/.bashrc
  225. #fi

  227. echo -e "\033[32m================================================\033[0m"
  228. echo -e "\033[32m>>>>>> 安装calico网络\033[0m"
  229. kubectl apply -f https://docs.projectcalico.org/manifests/calico.yaml

  231. echo -e "\033[32m================================================\033[0m"
  232. echo -e "\033[32m>>>>>> 安装kubernetes-dashboard\033[0m"
  233. wget -q https://mirrors.yangxingzhen.com/kubernetes/recommended.yaml
  234. kubectl create -f recommended.yaml

  236. sleep 60 >/dev/null
  237. echo -e "\033[32m================================================\033[0m"
  238. echo -e "\033[32m>>>>>> 查看凭证,获取token\033[0m"
  239. kubectl -n kubernetes-dashboard get secret
  240. Token=$(kubectl -n kubernetes-dashboard get secret |awk '/kubernetes-dashboard-token/ {print $1}')
  241. #echo "Token：$(kubectl describe secrets -n kubernetes-dashboard ${Token} |grep token |awk 'NR==3 {print $2}')"

  243. sleep 60 >/dev/null
  244. echo -e "\033[32m================================================\033[0m"
  245. echo -e "\033[32m>>>>>> 查看node\033[0m"
  246. kubectl get node

  248. sleep 60 >/dev/null
  249. echo -e "\033[32m================================================\033[0m"
  250. echo -e "\033[32m>>>>>> 查看pod\033[0m"
  251. kubectl get pod --all-namespaces

  253. sleep 60 >/dev/null
  254. echo -e "\033[32m================================================\033[0m"
  255. echo -e "\033[32m>>>>>> 查看service\033[0m"
  256. kubectl get svc -n kubernetes-dashboard

  258. echo -e "\033[32m================================================\033[0m"
  259. echo -e "\033[32m>>>>>> 授权kubernetes-dashboard,防止找不到namespace资源\033[0m"
  260. kubectl create clusterrolebinding serviceaccount-cluster-admin --clusterrole=cluster-admin --user=system:serviceaccount:kubernetes-dashboard:kubernetes-dashboard

  262. # 避免时间过短导致kubernetes-dashboard正在创建中，预计运行所有任务完毕时间为：4m40s(1.19.0)
  263. sleep 60 >/dev/null
  264. echo -e "\033[32m==========================================================================\033[0m"
  265. echo -e "\033[32mKubernetes ${Version} 部署完成...\033[0m"
  266. echo -e "\033[32m通过浏览器输入https://${IPADDR}:30000访问kubernetes-dashboard页面\033[0m"
  267. echo -e "\033[32mToken获取：kubectl describe secrets -n kubernetes-dashboard ${Token} |grep token |awk 'NR==3 {print \$2}'\033[0m"
  268. echo -e "\033[32m==========================================================================\033[0m"
  269. }

  271. function Install_Kubernetes_Node (){
  272. IPADDR=$(hostname -I |awk '{print $1}')
  273. echo -e "\033[32m================================================\033[0m"
  274. echo -e "\033[32m>>>>>> 正在安装Kubernetes版本：${Version}\033[0m"
  275. echo -e "\033[32m================================================\033[0m"
  276. echo -e "\033[32m>>>>>> 一键安装Kubernetes集群_Node端\033[0m"
  277. echo -e "\033[32m================================================\033[0m"
  278. echo -e "\033[32m>>>>>> 配置网易yum源\033[0m"
  279. mkdir -p /etc/yum.repos.d/bak
  280. \mv /etc/yum.repos.d/*.repo /etc/yum.repos.d/bak
  281. [ -f $(which wget) ] || yum -y install wget >/dev/null
  282. wget -q -P /etc/yum.repos.d http://mirrors.163.com/.help/CentOS7-Base-163.repo
  283. yum clean all >/dev/null
  284. yum makecache >/dev/null

  286. echo -e "\033[32m================================================\033[0m"
  287. echo -e "\033[32m>>>>>> 更新系统\033[0m"
  288. yum -y update >/dev/null

  290. echo -e "\033[32m================================================\033[0m"
  291. echo -e "\033[32m>>>>>> 关闭防火墙、selinux\033[0m"
  292. SYSTEM_VERSION=$(awk -F. '{print $1}' /etc/redhat-release |awk '{print $NF}')
  293. if [ ${SYSTEM_VERSION} -eq 6 ];then
  294. service iptables stop
  295. chkconfig iptables off
  296. sed -i "s/SELINUX=enforcing/SELINUX=disabled/g" /etc/selinux/config
  297. setenforce 0 >/dev/null
  298. else
  299. systemctl stop firewalld.service
  300. systemctl disable firewalld.service
  301. sed -i "s/SELINUX=enforcing/SELINUX=disabled/g" /etc/selinux/config
  302. setenforce 0 >/dev/null
  303. fi

  305. echo -e "\033[32m================================================\033[0m"
  306. echo -e "\033[32m>>>>>> 配置主机名\033[0m"
  307. NUM=$(ssh root@${Master_IP} "awk '/node/ {print \$2}' /etc/hosts |sed -n '\$p' |awk -F 'node' '{print \$2}'")
  308. [ -z ${NUM} ] && NUM="0"
  309. hostnamectl set-hostname node$(expr ${NUM} + 1)

  311. echo -e "\033[32m================================================\033[0m"
  312. echo -e "\033[32m>>>>>> 配置Hosts\033[0m"
  313. echo "${Master_IP} master" >>/etc/hosts
  314. echo "${IPADDR} node$(expr ${NUM} + 1)" >>/etc/hosts
  315. # 添加Hosts到Master端
  316. ssh root@${Master_IP} "echo "${IPADDR} node$(expr ${NUM} + 1)" >>/etc/hosts"

  318. echo -e "\033[32m================================================\033[0m"
  319. echo -e "\033[32m>>>>>> 关闭swap,注释swap分区\033[0m"
  320. swapoff -a
  321. sed -i '/swap/s/^/#/g' /etc/fstab

  323. echo -e "\033[32m================================================\033[0m"
  324. echo -e "\033[32m>>>>>> 配置内核参数,将桥接的IPv4流量传递到iptables的链\033[0m"
  325. cat >/etc/sysctl.d/k8s.conf <<EOF
  326. net.bridge.bridge-nf-call-ip6tables = 1
  327. net.bridge.bridge-nf-call-iptables = 1
  328. EOF
  329. modprobe br_netfilter
  330. sysctl -p /etc/sysctl.d/k8s.conf >/dev/null
  331. echo "1" > /proc/sys/net/ipv4/ip_forward

  333. echo -e "\033[32m================================================\033[0m"
  334. echo -e "\033[32m>>>>>> 安装Docker-ce、配置开机自启动、启动Docker\033[0m"
  335. rpm -qa |grep docker |grep -v grep >/dev/null
  336. if [ $? -ne 0 ];then
  337. #curl -fsSL https://get.docker.com | bash -s docker --mirror Aliyun
  338. yum -y install yum-utils device-mapper-persistent-data lvm2 >/dev/null
  339. yum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
  340. if [ ${Version} = "1.18.8" -o ${Version} = "1.19.0" ];then
  341. version="19.03.12"
  342. else
  343. version="18.09.9"
  344. fi
  345. yum -y install docker-ce-${version} docker-ce-cli-${version} containerd.io >/dev/null
  346. systemctl enable docker
  347. systemctl start docker
  348. if [ $? -eq 0 ];then
  349. echo -e "\033[32m================================================\033[0m"
  350. echo -e "\033[32m>>>>>> Docker Start Success...\033[0m"
  351. else
  352. echo -e "\033[32m================================================\033[0m"
  353. echo -e "\033[32m>>>>>> Docker Start Failed...\033[0m"
  354. exit 1
  355. fi
  356. else
  357. echo -e "\033[32m================================================\033[0m"
  358. echo -e "\033[32m>>>>>> Docker版本：$(docker --version |awk -F ',' '{print $1}') \033[0m"
  359. fi

  361. echo -e "\033[32m================================================\033[0m"
  362. echo -e "\033[32m>>>>>> 添加阿里云docker仓库加速器\033[0m"
  363. mkdir -p /etc/docker
  364. cat >/etc/docker/daemon.json <<EOF
  365. {
  366. "registry-mirrors": ["https://fl791z1h.mirror.aliyuncs.com"],
  367. "exec-opts": ["native.cgroupdriver=systemd"]
  368. }
  369. EOF
  370. systemctl daemon-reload
  371. systemctl restart docker

  373. echo -e "\033[32m================================================\033[0m"
  374. echo -e "\033[32m>>>>>> 添加阿里kubernetes源\033[0m"
  375. cat >/etc/yum.repos.d/kubernetes.repo <<EOF
  376. [kubernetes]
  377. name=Kubernetes
  378. baseurl=https://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64/
  379. enabled=1
  380. gpgcheck=1
  381. repo_gpgcheck=1
  382. gpgkey=https://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg https://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg
  383. EOF

  385. echo -e "\033[32m================================================\033[0m"
  386. echo -e "\033[32m>>>>>> 安装kubectl、kubelet、kubeadm\033[0m"
  387. yum -y install kubectl-${Version} kubelet-${Version} kubeadm-${Version} >/dev/null
  388. rpm -qa |grep kubelet >/dev/null
  389. if [ $? -eq 0 ];then
  390. systemctl enable kubelet
  391. systemctl start kubelet
  392. if [ $? -eq 0 ];then
  393. echo -e "\033[32m================================================\033[0m"
  394. action "kubelet-${Version} Start Success..." /bin/true
  395. else
  396. echo -e "\033[32m================================================\033[0m"
  397. action "kubelet-${Version} Start Failed..." /bin/false
  398. exit 1
  399. fi
  400. else
  401. action "kubelet-${Version} Install Failed..." /bin/false
  402. exit 1
  403. fi

  405. # 加入集群
  406. ssh root@${Master_IP} "kubeadm token list" >/dev/null
  407. if [ $? -eq 0 ];then
  408. TOKEN=$(ssh root@${Master_IP} "kubeadm token list |grep token |awk '{print \$1}' |sed -n '1p'")
  409. Hash=$(ssh root@${Master_IP} "openssl x509 -pubkey -in /etc/kubernetes/pki/ca.crt | openssl rsa -pubin -outform der 2>/dev/null | openssl dgst -sha256 -hex | sed 's/^.* //'")
  410. kubeadm join ${Master_IP}:6443 --token ${TOKEN} --discovery-token-ca-cert-hash sha256:${Hash}
  411. else
  412. ssh root@${Master_IP} "kubeadm token create" >/dev/null
  413. TOKEN=$(ssh root@${Master_IP} "kubeadm token list |grep token |awk '{print \$1}' |sed -n '1p'")
  414. Hash=$(ssh root@${Master_IP} "openssl x509 -pubkey -in /etc/kubernetes/pki/ca.crt | openssl rsa -pubin -outform der 2>/dev/null | openssl dgst -sha256 -hex | sed 's/^.* //'")
  415. kubeadm join ${Master_IP}:6443 --token ${TOKEN} --discovery-token-ca-cert-hash sha256:${Hash}
  416. fi
  417. }

  419. function Main (){
  420. stty erase '^H'
  421. Code=""
  422. while true
  423. do
  424. read -p "$(echo -e "\033[32m请输入需要安装的节点名称[master/node]：\033[0m")" Name
  425. if [ -z ${Name} ];then
  426. echo -e "\033[31m输入错误,节点名称不能为空...\033[0m"
  427. elif [ ${Name} = "master" ];then
  428. while true
  429. do
  430. read -p "$(echo -e "\033[32m请输入需要安装的Kubernetes版本号[Default：1.19.0],输入s/S查看可用版本：\033[0m")" Version
  431. if [ -z ${Version} ];then
  432. Version="1.19.0"
  433. Install_Kubernetes_Master
  434. Code="break"
  435. elif [ "${Version}" = "q" -o "${Version}" = "Q" ];then
  436. exit 1
  437. elif [ "${Version}" = "s" -o "${Version}" = "S" ];then
  438. Kubernetes_Version
  439. else
  440. Install_Kubernetes_Master
  441. Code="break"
  442. fi
  443. ${Code}
  444. done
  445. elif [ ${Name} = "node" ];then
  446. while true
  447. do
  448. read -p "$(echo -e "\033[32m请输入需要安装的Kubernetes版本号[Default：1.19.0],输入s/S查看可用版本：\033[0m")" Version
  449. if [ -z ${Version} ];then
  450. Version="1.19.0"
  451. Code="break"
  452. elif [ "${Version}" = "q" -o "${Version}" = "Q" ];then
  453. exit 1
  454. elif [ "${Version}" = "s" -o "${Version}" = "S" ];then
  455. Kubernetes_Version
  456. else
  457. while true
  458. do
  459. read -p "$(echo -e "\033[32m请输入需要Kubernetes的Master节点IP：\033[0m")" Master_IP
  460. if [ -z ${Master_IP} ];then
  461. echo -e "\033[31m输入错误,Master节点IP不能为空...\033[0m"
  462. else
  463. Install_Kubernetes_Node
  464. Code="break"
  465. fi
  466. ${Code}
  467. done
  468. fi
  469. ${Code}
  470. done
  471. else
  472. echo -e "\033[31m输入错误,节点名称不存在...\033[0m"
  473. fi
  474. ${Code}
  475. done
  476. }

  478. Main

脚本执行方式：

Master端

[root@Edu_1 ~]# sh auto_install_kubernetes.sh

Kubernetes自动化一键部署脚本

Kubernetes自动化一键部署脚本

Node端

[root@Test ~]# sh auto_install_kubernetes.sh

Kubernetes自动化一键部署脚本

脚本执行完之后在Master端执行

Kubernetes自动化一键部署脚本

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