k8s+jenkins+harbor镜像仓库实现持续集成

一丶准备工作

1.安装好jenkins

2.安装好k8s

3.熟悉Docker，K8S，Jenkins基本使用了解代码版本仓库（Git），容器镜像仓库（Harbor）了解Java项目发布流程

以上可到我的博客查看，后面我也会同步到简书中来

博客地址 https://www.salterwudi.com

二丶Harbor镜像仓库

1、下载离线安装包

https://github.com/goharbor/harbor/releases

2、解压并配置访问地址

# tar zxvf harbor-offline-installer-v1.6.1.tgz

# cd harbor

# vi harbor.cfg

hostname = 10.206.240.188

harbor_admin_password = 123456

3、准备配置

# ./prepare

4、导入镜像并启动

# ./install.sh

5、查看容器状态

# docker-compose ps

三丶Git代码版本仓库

1.一种是自己找台服务器安装(自行安装)

2.使用阿里云code，或gitlub等代码管理库

四丶Jenkins安装相关插件

• Git Parameter 主要拉去Jenkinsfile 具体后面讲解

• Kubernetes 主要用于jenkins与k8s连接

• Pipeline 流水线

• Kubernetes Continuous Deploy 用于将制作好的镜像部署到k8s集群中

五丶Jenkins配置

1.全局安全配置开放50000端口

2.系统配置拉到最下面 k8s云

kubernetes地址

[root]# kubectl get svc

六丶构建Jenkins Slave镜像

1.提前下载好如上文件放到同一个文件夹下

下载地址 https://pan.baidu.com/s/1c6-wElnafuItF7D0-s2oPw

提取码 1h90

vim Dockerfile 输入如下内容

FROM centos:7

LABEL maintainer salter

COPY jdk-8u221-linux-x64.tar.gz /usr/local/jdk-8u221-linux-x64.tar.gz

RUN ls .

RUN cd /usr/local && tar -zxvf jdk-8u221-linux-x64.tar.gz

RUN yum install -y curl git libtool-ltdl-devel && \

yum clean all && \

rm -rf /var/cache/yum/* && \

mkdir -p /usr/share/jenkins

RUN yum -y install wget

RUN wget https://mirror.bit.edu.cn/apache/maven/maven-3/3.6.3/binaries/apache-maven-3.6.3-bin.tar.gz

RUN tar -zxvf apache-maven-3.6.3-bin.tar.gz

RUN mv apache-maven-3.6.3 /usr/local/maven3

ENV M3_HOME=/usr/local/maven3

ENV JAVA_HOME=/usr/local/jdk1.8.0_221

ENV PATH=${PATH}:${JAVA_HOME}/bin:${M3_HOME}/bin

RUN mvn -v

COPY slave.jar /usr/share/jenkins/slave.jar

COPY jenkins-slave /usr/bin/jenkins-slave

COPY settings.xml /usr/local/maven3/conf/settings.xml

RUN chmod +x /usr/bin/jenkins-slave

ENTRYPOINT ["jenkins-slave"]

2.制作镜像

[root]# docker build -t 172.17.137.168:90/library/jenkins-slave-maven3.6-jdk8-git .

3.上传镜像到Harbor

docker login 172.17.137.168:90

docker push 172.17.137.168:90/library/jenkins-slave-maven3.6-jdk8-git

七丶根据项目编写Jenkinsfile及deploy.yaml文件

1.Jenkinsfile 内容如下

def image_name = "172.17.137.168:90/library/live-scrm:${BUILD_NUMBER}"

def k8s_auth = "9914859b-3bf5-454a-ab89-bac3f1bd5864"

podTemplate(label: 'jenkins-slave', cloud: 'kubernetes', containers: [

containerTemplate(

image: "172.17.137.168:90/library/jenkins-slave-maven3.6-jdk8-git"

volumes: [

hostPathVolume(mountPath: '/var/run/docker.sock', hostPath: '/var/run/docker.sock'),

hostPathVolume(mountPath: '/usr/bin/docker', hostPath: '/usr/bin/docker'),

hostPathVolume(mountPath: '/root/.m2', hostPath: '/root/.m2')

)

{

node("jenkins-slave"){

// 第一步

stage('拉取代码'){

git 'https://code.aliyun.com/personal-dev/live-scrm.git'

}

// 第二步

stage('代码编译'){

sh "mvn clean package -Dmaven.test.skip=true"

}

// 第三步

stage('构建镜像'){

sh """

echo '

FROM java:8

MAINTAINER live-scrm

ADD target/*.jar live-scrm.jar

EXPOSE 8080

ENTRYPOINT ["java","-jar","live-scrm.jar"]

' > Dockerfile

docker build -t ${image_name} .

docker login -u admin -p '123456' 172.17.137.168:90

docker push ${image_name}

"""

}

// 第四步

stage('部署到K8S平台'){

sh """

sed -i 's#\$IMAGE_NAME#${image_name}#' live-scrm.yaml

"""

kubernetesDeploy configs: 'live-scrm.yaml', kubeconfigId: "${k8s_auth}"

}

2.deploy.yaml文件内容如下我这里是取名为live-scrm.yaml

apiVersion: apps/v1

kind: Deployment

metadata:

spec:

replicas: 1

selector:

matchLabels:

app: live-scrm

template:

metadata:

labels:

app: live-scrm

spec:

containers:

- name: live-scrm

image: $IMAGE_NAME

imagePullPolicy: IfNotPresent

ports:

- containerPort: 8082

resources:

requests:

cpu: 500m

volumeMounts:

- name: timezone

mountPath: /etc/localtime

imagePullSecrets:

- name: dockerregsecret

volumes:

- name: timezone

hostPath:

path: /usr/share/zoneinfo/Asia/Shanghai

---

apiVersion: v1

kind: Service

metadata:

spec:

type: NodePort #这里代表是NodePort类型的

ports:

- port: 8082 #这里的端口和clusterIP(10.97.114.36)对应，即10.97.114.36:80,供内部访问。

targetPort: 8082 #端口一定要和container暴露出来的端口对应，nodejs暴露出来的端口是8081，所以这里也应是8081

protocol: TCP

nodePort: 32143 # 所有的节点都会开放此端口，此端口供外部调用。

selector:

app: live-scrm

八丶Jenkins Pipeline构建流水线发布

九丶点击构建,见证奇迹吧~