jenkins 集成k8s项目实战-工具盒子

jenkins 集成k8s项目实战

1.在gitee创建项目

注册账号，在gitee上创建一个名为"baimeibaimei-linux"的项目。
登录地址:
https://gitee.com/

2.将医疗器械源代码推送到gitee

2.1 安装git工具

yum -y install git

2.2 Git 全局设置

git config --global user.name ""
 git config --global user.email ""

2.3 初始化代码仓库

mkdir baimei-linux && cd baimei-linux

git init

2.4 下载项目开发源代码

unzip baimei-yiliao.zip

rm -f baimei-yiliao.zip

2.5 编写Dockerfile及编译脚本

cat Dockerfile

FROM harbor.baimei.com/baimei-web/nginx:1.25.1-alpine

LABEL school=baimei \
      class=linux \
      office=www.baimei.com 

EXPOSE 80

ADD . /usr/share/nginx/html

测试自己 Dockerfile 是否正常运行：

打包镜像

cat build.sh 

#!/bin/bash

RELEASE=$1
docker build -t harbor.baimei.com/baimei-jenkins/yiliao:v${RELEASE:-1} .

docker push harbor.baimei.com/baimei-jenkins/yiliao:v${RELEASE:-1}

2.6 将文件提交到本地仓库

git add .

git commmit -m 'baimei linux first commit'

2.7 提交代码到远程仓库

git remote add origin

git push -u origin "master"

输入, 131611, 158a

2.8 访问gitee验证代码，你访问自己节点就行

https://gitee.com/wang-huamao/yiliao

Jenkins集成K8S项目之Jenkins参数化构建docker镜像并推送到harbor仓库

1.安装docker环境

jenkins 主机需要安装 docker环境

root@jenkins166:~# wget http://192.168.11.253/Kubernetes/day11-/softwares/baimei-docker-binary-install-20.10.tar.gz
root@jenkins166:~# 
root@jenkins166:~# tar xf baimei-docker-binary-install-20.10.tar.gz 
root@jenkins166:~# 
root@jenkins166:~# ./install-docker.sh install

2.添加docker的hosts解析

echo 10.0.0.250 harbor.baimei.com >> /etc/hosts

3.添加harbor的证书文件到Jenkins节点。

[root@harbor250 client]# scp -r /etc/docker/certs.d/ 10.0.0.166:/etc/docker/

4.在habor服务创建Jenkins普通用户

用户名: jenkins
密  码: Linux@2023

5.Jenkins登录harbor私有仓库

docker login -u jenkins -p Linux@2023 harbor.baimei.com

这一步只要成功了，基本下边的就没问题了。

6.Jenkins构建gitee项目

Jenkins集成K8S项目之业务迁移K8S：

1.Jenkins安装kubectl工具

1.1 配置kubectl软件源

root@jenkins166:~# cat <<EOF >/etc/apt/sources.list.d/kubernetes.list
deb http://mirrors.ustc.edu.cn/kubernetes/apt kubernetes-xenial main
EOF

1.2 安装apt-key认证信息

curl -s https://mirrors.aliyun.com/kubernetes/apt/doc/apt-key.gpg | apt-key add -

1.3 更新软件源

apt-get update

1.4 验证是否支持软件源，查看支持的kubectl版本

apt-cache madison kubectl

1.5 开始安装指定的kubectl版本

apt-get -y install kubectl=1.23.17-00

1.6 验证kubectl的版本号

该步骤只能获取到Client Version信息，而无法获取到Server Version，属于正常现象。继续进行下一步即可解决。

kubectl version

master231节点将管理员的kubeconfig文件移动到Jenkins节点。

需要获取一些配置信息

[root@master231 ~]# scp /root/.kube/config 10.0.0.166:/root/.kube/

1.7 再次验证kubectl的版本号

kubectl version

2.创建harbor的登录凭据信息

2.1 响应式创建

先进行响应式创建，然后再根据模板来修改

[root@master231 01-yiliao]# kubectl create secret docker-registry harbor-jenkins --docker-username=jenkins --docker-password=Linux@2023 --docker-email=jenkins@baimei.com --docker-server=harbor.baimei.com

 kubectl get secrets  harbor-jenkins -o yaml

2.2 声明式创建

[root@master231 01-yiliao]# cat 01-secrets-yiliao.yaml 

apiVersion: v1
data:
  .dockerconfigjson: eyJhdXRocyI6eyJoYXJib3Iub2xkYm95ZWR1LmNvbSI6eyJ1c2VybmFtZSI6ImplbmtpbnMiLCJwYXNzd29yZCI6IkxpbnV4QDIwMjMiLCJlbWFpbCI6ImplbmtpbnNAb2xkYm95ZWR1LmNvbSIsImF1dGgiOiJhbVZ1YTJsdWN6cE1hVzUxZUVBeU1ESXoifX19
kind: Secret
metadata:
  name: harbor-jenkins
  namespace: default
type: kubernetes.io/dockerconfigjson

3.创建deployment资源

 cat 02-deploy-yiliao.yaml 

apiVersion: apps/v1
kind: Deployment
metadata:
  name: deploy-yiliao
spec:
  replicas: 3
  selector:
    matchExpressions:
    - key: apps
      values: 
      - "yiliao"
      operator: In
  template:
    metadata:
      labels:
        apps: yiliao
        school: baimei
        class: linu86
    spec:
      imagePullSecrets:
      - name: harbor-jenkins
      containers:
      - name: yiliao
        image: harbor.baimei.com/baimei-jenkins/yiliao:v10

4.创建service资源

cat 03-svc-yiliao.yaml

apiVersion: v1
kind: Service
metadata:
  name: svc-yiliao
spec:
  type: NodePort
  selector:
    apps: yiliao
  ports:
  - port: 80
    targetPort: 80
    nodePort: 30080

5.修改Jenkins的WebUI，配置如下:

./build.sh $version
kubectl set image deploy  deploy-yiliao yiliao=harbor.baimei.com/baimei-jenkins/yiliao:v$version

dockerfile

build.sh

#!/bin/bash

RELEASE=$1
docker build -t harbor.baimei.com/baimei-jenkins/yiliao:v${RELEASE:-1} .

docker push harbor.baimei.com/baimei-jenkins/yiliao:v${RELEASE:-1}

Dockfile

FROM harbor.baimei.com/baimei-web/nginx:1.25.1-alpine

LABEL school=baimei \
      class=linux86 \
      office=www.baimei.com 

EXPOSE 80

ADD . /usr/share/nginx/html