k8s部署医疗服务

1）编写资源清单并提交到gitee

	1.编写资源清单
[root@worker233 oldboyedu-linux101-yiliao]# cat deploy-svc-yiliao.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
  name: deploy-yiliao
spec:
  replicas: 3
  selector:
    matchLabels:
      apps: yiliao
  template: 
    metadata:
      labels:
         apps: yiliao
    spec:
      containers:
      - name: c1
        image: harbor250.oldboyedu.com/oldboyedu-yiliao/demo:v0.1

---

apiVersion: v1
kind: Service
metadata:
  name: svc-yiliao
spec:
  type: LoadBalancer
  selector:
    apps: yiliao
  ports:
  - port: 80

[root@worker233 oldboyedu-linux101-yiliao]# 
	
	2.提交资源清单代码到gitee
[root@worker233 oldboyedu-linux101-yiliao]# git add deploy-svc-yiliao.yaml 
[root@worker233 oldboyedu-linux101-yiliao]# 
[root@worker233 oldboyedu-linux101-yiliao]# git commit -m 'add k8s yiliao manifests'
[master 048d3db] add k8s yiliao manifests
 1 file changed, 32 insertions(+)
 create mode 100644 deploy-svc-yiliao.yaml
[root@worker233 oldboyedu-linux101-yiliao]# 
[root@worker233 oldboyedu-linux101-yiliao]# git push origin master
Username for 'https://gitee.com': yinzhengjie
Password for 'https://yinzhengjie@gitee.com': 
Enumerating objects: 4, done.
Counting objects: 100% (4/4), done.
Delta compression using up to 4 threads
Compressing objects: 100% (3/3), done.
Writing objects: 100% (3/3), 556 bytes | 556.00 KiB/s, done.
Total 3 (delta 1), reused 0 (delta 0), pack-reused 0
remote: Powered by GITEE.COM [1.1.23]
remote: Set trace flag d14f4da9
To https://gitee.com/yinzhengjie/oldboyedu-linux101-yiliao.git
   cf2df7f..048d3db  master -> master
[root@worker233 oldboyedu-linux101-yiliao]# 

	3.gitee查看远程仓库

2）jenkins部署医疗项目到K8S集群

	1.jenkins安装kubectl客户端工具管理K8S集群
[root@jenkins211 ~]# wget http://192.168.21.253/Resources/Kubernetes/Project/DevOps/Jenkins/kubectl-1.23.17

[root@jenkins211 ~]# mv kubectl-1.23.17 /usr/local/bin/kubectl

[root@jenkins211 ~]# chmod +x /usr/local/bin/kubectl

	2.准备认证文件
[root@jenkins211 ~]# mkdir -p .kube
[root@jenkins211 ~]# scp 10.0.0.231:/root/.kube/config .kube
root@10.0.0.231’s password:  #输入密码
config                                                                                               100% 5634    10.7MB/s   00:00    
[root@jenkins211 ~]# 
[root@jenkins211 ~]# kubectl version
Client Version: version.Info{Major:"1", Minor:"23", GitVersion:"v1.23.17", GitCommit:"953be8927218ec8067e1af2641e540238ffd7576", GitTreeState:"clean", BuildDate:"2023-02-22T13:34:27Z", GoVersion:"go1.19.6", Compiler:"gc", Platform:"linux/amd64"}
Server Version: version.Info{Major:"1", Minor:"23", GitVersion:"v1.23.17", GitCommit:"953be8927218ec8067e1af2641e540238ffd7576", GitTreeState:"clean", BuildDate:"2023-02-22T13:27:46Z", GoVersion:"go1.19.6", Compiler:"gc", Platform:"linux/amd64"}
[root@jenkins211 ~]# 
[root@jenkins211 ~]# kubectl get nodes -o wide
NAME        STATUS   ROLES                  AGE     VERSION    INTERNAL-IP   EXTERNAL-IP   OS-IMAGE             KERNEL-VERSION       CONTAINER-RUNTIME
master231   Ready    control-plane,master   16d     v1.23.17   10.0.0.231    <none>        Ubuntu 22.04.4 LTS   5.15.0-163-generic   docker://20.10.24
worker232   Ready    <none>                 16d     v1.23.17   10.0.0.232    <none>        Ubuntu 22.04.4 LTS   5.15.0-163-generic   docker://20.10.24
worker233   Ready    <none>                 6d22h   v1.23.17   10.0.0.233    <none>        Ubuntu 22.04.4 LTS   5.15.0-163-generic   docker://20.10.24
[root@jenkins211 ~]#

	3.修改jenkins的构建命令(此操作会在jk节点执行)
docker build -t  harbor250.oldboyedu.com/oldboyedu-yiliao/demo:v0.1 .
docker login -u admin -p 1 harbor250.oldboyedu.com
docker push harbor250.oldboyedu.com/oldboyedu-yiliao/demo:v0.1
docker logout harbor250.oldboyedu.com
kubectl apply -f deploy-svc-yiliao.yaml
kubectl get deploy,svc,pods -o wide

3）参数化构建之选项参数实战

	1.修改源代码 #gitee里也可以修改,修改后保存即可
[root@harbor250.oldboyedu.com oldboyedu-yiliao-linux100]# vim code/index.html  # 自行修改
[root@harbor250.oldboyedu.com oldboyedu-yiliao-linux100]# 
[root@harbor250.oldboyedu.com oldboyedu-yiliao-linux100]# git commit -am 'update test v0.3'
[master 28aa42a] update test v0.3
 1 file changed, 1 insertion(+), 1 deletion(-)
[root@harbor250.oldboyedu.com oldboyedu-yiliao-linux100]# 
[root@harbor250.oldboyedu.com oldboyedu-yiliao-linux100]# git push origin master 
Username for 'https://gitee.com': yinzhengjie
Password for 'https://yinzhengjie@gitee.com': 
Enumerating objects: 7, done.
Counting objects: 100% (7/7), done.
Delta compression using up to 2 threads
Compressing objects: 100% (4/4), done.
Writing objects: 100% (4/4), 466 bytes | 466.00 KiB/s, done.
Total 4 (delta 3), reused 0 (delta 0), pack-reused 0
remote: Powered by GITEE.COM [1.1.23]
remote: Set trace flag 9445ecb2
To https://gitee.com/yinzhengjie/oldboyedu-yiliao-linux100.git
   b79556d..28aa42a  master -> master
[root@harbor250.oldboyedu.com oldboyedu-yiliao-linux100]# 

	
	2.添加jenkins变量
假设变量名称为'version'

  
	3.修改编译的脚本内容引用变量
set +e  # 表示就算后续的命令如果返回值不是0，那么脚本依然向下执行;其中'set -e'表示立刻停止(是严格模式)
docker build -t  harbor250.oldboyedu.com/oldboyedu-yiliao/demo:$version .
docker login -u admin -p 1 harbor250.oldboyedu.com
docker push harbor250.oldboyedu.com/oldboyedu-yiliao/demo:$version
docker logout harbor250.oldboyedu.com
# deploy project
kubectl get deployments.apps deploy-yiliao  2>/dev/null 
if [ $? -eq 0 ];then
#如果有上面的deploy-yiliao，就做更新；如果没有，就用默认的资源清单
	kubectl set image deploy deploy-yiliao c1=harbor250.oldboyedu.com/oldboyedu-yiliao/demo:${version}
else
	kubectl apply -f deploy-svc-yiliao.yaml
fi 
kubectl get deploy,svc,po -o wide --show-labels


	4.构建测试

	5.访问测试。

4）git参数化构建实现发布和回滚

• 由于git的版本号不好记, 要在工作中做好留痕(发送到邮箱,钉钉等), 方便发布和回滚

	1.添加git参数
先将之前的选项参数删除，再添加git参数。

	2.再次修改代码
[root@harbor250.oldboyedu.com oldboyedu-yiliao-linux100]# vim code/index.html 
...
 27 <body>
 28     <h1 style='color: red;'>~</h1>  
...
[root@harbor250.oldboyedu.com oldboyedu-yiliao-linux100]# git commit -am 'update test xixi'
[master bc46fd9] update test xixi
 1 file changed, 1 insertion(+), 1 deletion(-)
[root@harbor250.oldboyedu.com oldboyedu-yiliao-linux100]# 
[root@harbor250.oldboyedu.com oldboyedu-yiliao-linux100]# git push origin master 
Username for 'https://gitee.com': yinzhengjie
Password for 'https://yinzhengjie@gitee.com': 
Enumerating objects: 7, done.
Counting objects: 100% (7/7), done.
Delta compression using up to 2 threads
Compressing objects: 100% (4/4), done.
Writing objects: 100% (4/4), 388 bytes | 388.00 KiB/s, done.
Total 4 (delta 3), reused 0 (delta 0), pack-reused 0
remote: Powered by GITEE.COM [1.1.23]
remote: Set trace flag 3d4ae085
To https://gitee.com/yinzhengjie/oldboyedu-yiliao-linux100.git
   28aa42a..bc46fd9  master -> master
[root@harbor250.oldboyedu.com oldboyedu-yiliao-linux100]# 


	3.查看提交的历史版本信息
[root@harbor250.oldboyedu.com oldboyedu-yiliao-linux100]# git log 
commit bc46fd919969e6445b1ed3e58a619dd2e6d076db (HEAD -> master, origin/master)
Author:  <8669059+yinzhengjie@user.noreply.gitee.com>
Date:   Tue Dec 16 16:33:09 2025 +0800

    update test xixi

commit 28aa42a4a10cdae108156fa3cf09400d37a9605c
Author:  <8669059+yinzhengjie@user.noreply.gitee.com>
Date:   Tue Dec 16 16:25:34 2025 +0800

    update test v0.3

commit b79556d4cffdb0bed59fd29acf12245550510969
Author:  <8669059+yinzhengjie@user.noreply.gitee.com>
Date:   Tue Dec 16 15:29:07 2025 +0800

    add manifests
[root@harbor250.oldboyedu.com oldboyedu-yiliao-linux100]# 
[root@harbor250.oldboyedu.com oldboyedu-yiliao-linux100]# git reflog 
bc46fd9 (HEAD -> master, origin/master) HEAD@{0}: commit: update test xixi
28aa42a HEAD@{1}: commit: update test v0.3
b79556d HEAD@{2}: commit (initial): add manifests
[root@harbor250.oldboyedu.com oldboyedu-yiliao-linux100]# 


	4.jenkins参数化构建


	5.访问webUI


	6.回滚版本（因为harbor已经有此镜像了,直接部署即可）
set +e  # 表示就算后续的命令如果返回值不是0，那么脚本依然向下执行，其中'set -e'表示立刻停止。
kubectl get deployments.apps deploy-yiliao  2>/dev/null 
if [ $? -eq 0 ];then
#如果有上面的deploy-yiliao，就做更新；如果没有，就用默认的资源清单
	kubectl set image deploy deploy-yiliao c1=harbor250.oldboyedu.com/oldboyedu-yiliao/demo:${version}
else
	kubectl apply -f deploy-svc-yiliao.yaml
fi 
kubectl get deploy,svc,po -o wide --show-labels

5）优化代码结构并提交到gitee

	1.修改目录结构
[root@harbor250.oldboyedu.com oldboyedu-yiliao-linux100]# tree -L 2 -a
.
├── code  # 源代码文件
│   ├── about.html
│   ├── album.html
│   ├── article_detail.html
│   ├── article.html
│   ├── comment.html
│   ├── contact.html
│   ├── css
│   ├── images
│   ├── index.html
│   ├── js
│   ├── product_detail.html
│   └── product.html
├── Dockerfile  # 编写的Dockerfile文件
├── .dockerignore  # 忽略不必要的文件
├── .git
│   ├── branches
│   ├── COMMIT_EDITMSG
│   ├── config
│   ├── description
│   ├── HEAD
│   ├── hooks
│   ├── index
│   ├── info
│   ├── logs
│   ├── objects
│   └── refs
└── manifests  # K8S集群部署的资源清单
    ├── deployments.yaml
    └── services.yaml

12 directories, 18 files
[root@harbor250.oldboyedu.com oldboyedu-yiliao-linux100]# 


	2.查看Dockerfile文件内容
[root@harbor250.oldboyedu.com oldboyedu-yiliao-linux100]# cat Dockerfile 
FROM registry.cn-hangzhou.aliyuncs.com/yinzhengjie-k8s/apps:v1

MAINTAINER Jason Yin

RUN rm -rf /usr/share/nginx/html/*

# 不推荐这样使用，只要修改任意文件，就可能无法充分利用缓存技术！
# COPY . /usr/share/nginx/html/

# 推荐将源代码放在一个特定目录中进行拷贝即可。
COPY code/ /usr/share/nginx/html/

EXPOSE 80
[root@harbor250.oldboyedu.com oldboyedu-yiliao-linux100]# 


	
	3.查看忽略的文件内容
[root@harbor250.oldboyedu.com oldboyedu-yiliao-linux100]# cat .dockerignore 
manifests
.git
[root@harbor250.oldboyedu.com oldboyedu-yiliao-linux100]# 

	
	4.查看资源清单
[root@harbor250.oldboyedu.com oldboyedu-yiliao-linux100]# cat manifests/deployments.yaml 
apiVersion: apps/v1
kind: Deployment
metadata:
  name: deploy-yiliao
spec:
  replicas: 3
  selector:
    matchLabels:
      apps: yiliao
  template: 
    metadata:
      labels:
         apps: yiliao
    spec:
      containers:
      - name: c1
        image: harbor250.oldboyedu.com/oldboyedu-yiliao/demo:v0.1
        ports:
        - containerPort: 80
          name: web

[root@harbor250.oldboyedu.com oldboyedu-yiliao-linux100]# 
[root@harbor250.oldboyedu.com oldboyedu-yiliao-linux100]# cat manifests/services.yaml 
apiVersion: v1
kind: Service
metadata:
  name: svc-yiliao
spec:
  type: LoadBalancer
  selector:
    apps: yiliao
  ports:
  - port: 80
    targetPort: web
    nodePort: 8080
[root@harbor250.oldboyedu.com oldboyedu-yiliao-linux100]# 

	
	5.删除远程仓库项目重新创建（因为之前的环境存在扩展性差的问题！！！）
将gitee的'oldboyedu-yiliao-linux100'删除后重新创建。
	
	6.提交代码到本地
[root@harbor250.oldboyedu.com oldboyedu-yiliao-linux100]# rm -rf .git/  # 移除之前的环境


[root@harbor250.oldboyedu.com oldboyedu-yiliao-linux100]# git init 

[root@harbor250.oldboyedu.com oldboyedu-yiliao-linux100]# git add .

[root@harbor250.oldboyedu.com oldboyedu-yiliao-linux100]# git commit -m 'add manifests'



	6.提交代码到gitee
[root@harbor250.oldboyedu.com oldboyedu-yiliao-linux100]# git remote add origin https://gitee.com/yinzhengjie/oldboyedu-yiliao-linux100.git
[root@harbor250.oldboyedu.com oldboyedu-yiliao-linux100]# 
[root@harbor250.oldboyedu.com oldboyedu-yiliao-linux100]# git remote  -v
origin	https://gitee.com/yinzhengjie/oldboyedu-yiliao-linux100.git (fetch)
origin	https://gitee.com/yinzhengjie/oldboyedu-yiliao-linux100.git (push)
[root@harbor250.oldboyedu.com oldboyedu-yiliao-linux100]# 
[root@harbor250.oldboyedu.com oldboyedu-yiliao-linux100]# git push origin master 
Username for 'https://gitee.com': yinzhengjie
Password for 'https://yinzhengjie@gitee.com': 
Enumerating objects: 5, done.
Counting objects: 100% (5/5), done.
Delta compression using up to 2 threads
Compressing objects: 100% (2/2), done.
Writing objects: 100% (3/3), 585 bytes | 585.00 KiB/s, done.
Total 3 (delta 0), reused 0 (delta 0), pack-reused 0
remote: Powered by GITEE.COM [1.1.23]
remote: Set trace flag c24569ba
To https://gitee.com/yinzhengjie/oldboyedu-yiliao-linux100.git
   37e2714..ec359fe  master -> master
[root@harbor250.oldboyedu.com oldboyedu-yiliao-linux100]# 


	7.gitee查看远程仓库