Kubernetes自动化一键部署脚本

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：[email protected]
13. # QQ：675583110
14. #Auto Install Kubernetes
15. 
    
16. source /etc/init.d/functions
17. 
    
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')
29. 
    
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
34. 
    
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. }
57. 
    
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. }
71. 
    
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
86. 
    
87. echo -e "\033[32m================================================\033[0m"
88. echo -e "\033[32m>>>>>> 更新系统\033[0m"
89. yum -y update >/dev/null
90. 
    
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
105. 
     
106. echo -e "\033[32m================================================\033[0m"
107. echo -e "\033[32m>>>>>> 配置主机名\033[0m"
108. hostnamectl set-hostname master
109. 
     
110. echo -e "\033[32m================================================\033[0m"
111. echo -e "\033[32m>>>>>> 配置hosts\033[0m"
112. echo "${IPADDR} master" >>/etc/hosts
113. 
     
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
118. 
     
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
128. 
     
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
156. 
     
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
168. 
     
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
180. 
     
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
200. 
     
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
208. 
     
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
212. 
     
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
220. 
     
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
226. 
     
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
230. 
     
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
235. 
     
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}')"
242. 
     
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
247. 
     
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
252. 
     
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
257. 
     
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
261. 
     
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. }
270. 
     
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
285. 
     
286. echo -e "\033[32m================================================\033[0m"
287. echo -e "\033[32m>>>>>> 更新系统\033[0m"
288. yum -y update >/dev/null
289. 
     
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
304. 
     
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)
310. 
     
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"
317. 
     
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
322. 
     
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
332. 
     
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
360. 
     
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
372. 
     
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
384. 
     
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
404. 
     
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. }
418. 
     
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. }
477. 
     
478. Main

脚本执行方式：

Master端

[root@Edu_1 ~]# sh auto_install_kubernetes.sh

Node端

[root@Test ~]# sh auto_install_kubernetes.sh

脚本执行完之后在Master端执行

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