改DevOps主要就是 监控git 在有版本更新的时候可以自动拉取代码打包发布docker images,更新k8s的deployment

1. 自制应用参考官方文档配置( 自制应用可以用的KubeSphere的灰度发布功能)

Jenkins的pipeline如下 使用kubernetesDeploy的时候 kubeconfig在KubeSphere3.0中有问题,解决方案看帖子:https://kubesphere.com.cn/forum/d/2591-spring-boot-received-fatal-alert-bad-certificate/8

关键点如下:

kubectl -n kubesphere-controls-system delete cm kubeconfig-[用户名]
kubectl -n kubesphere-system rollout restart deployment ks-controller-manager ks-apiserver

def riqi=''
import java.text.SimpleDateFormat
pipeline {
  agent {
    node {
      label 'maven'
    }
  }
  environment {
      DATETAG=""
  }
  stages {
    stage('定义日期') {
      steps {
        script {
          def dateFormat = new SimpleDateFormat("yyyyMMddHHmm")
          def date = new Date()
          riqi=dateFormat.format(date)
          env.riqistr = riqi
        }
      }
    }
    stage('获取代码') {
      steps {
        git(credentialsId: 'gitee-ssh', url: 'git@gitee.com:xxxx', branch: 'dev', changelog: true, poll: false)
      }
    }
    stage('Maven 构建') {
      steps {
        container('maven') {
          sh 'mvn -f xxxx/pom.xml -Dmaven.test.skip=true -U clean install'
        }

      }
    }
    stage('打包Docker') {
      steps {
        container('maven') {
          echo 'start build image'
          dir('xxxxx') {
            sh 'docker build --build-arg DEPLOY_ENV_SELECT=dev -t xxx-back-dev:$riqistr .'
            sh 'docker login -u admin -p xxx xxx.io'
            sh 'docker tag xxxx:1.0 fqidocker.io/jeecg-boot-back-dev:$riqistr'
            sh 'docker push fqidocker.io/jeecg-boot-back-dev:$riqistr'
          }
        }
      }
    }
    stage('部署到K8S') {
      steps {
        container('maven') {
          sh 'ls'
          kubernetesDeploy(enableConfigSubstitution: true, deleteResource: false, kubeconfigId: 'kubeconfig', configs: 'xxxx/k8s_deployment.yaml')
        }
      }
    }
  }
}

K8S的deployment在 KubeSphere工作负载中Copy出来,这里有几个改动需要注意,idea下载k8s的插件,检查下yaml中是否有灰色的标签,如果有需要删除否则会报错

ERROR: ERROR: Cannot create property=spec for JavaBean=class V1Deployment {

kind: Deployment
apiVersion: apps/v1
metadata:
  name: xxxxback-dev-v1
  namespace: demo-project
  labels:
    build_number: ${BUILD_NUMBER} #这里是让k8s观察到deployment发生变化
    app: xxxxback-dev
    app.kubernetes.io/name: xxxx-improve
    app.kubernetes.io/version: v1
    version: v1
  annotations:
    deployment.kubernetes.io/revision: '1'
    kubesphere.io/creator: project-admin
    servicemesh.kubesphere.io/enabled: 'true'
spec:
  replicas: 2
  selector:
    matchLabels:
      app: jeecg-boot-back-dev
      app.kubernetes.io/name: xxx-improve
      app.kubernetes.io/version: v1
      version: v1
  template:
    metadata:
      labels:
        app: jeecg-boot-back-dev
        app.kubernetes.io/name: xxx-improve
        app.kubernetes.io/version: v1
        version: v1
      annotations:
        kubesphere.io/containerSecrets: '{"container-xxx-back":"docker-sign"}'
        sidecar.istio.io/inject: 'true'
    spec:
      volumes:
        - name: host-time
          hostPath:
            path: /etc/localtime
            type: ''
      containers:
        - name: container-xxxx-back
          image: 'fqidocker.io/jeecg-boot-back-dev:${riqistr}'
          ports:
            - name: http-api
              containerPort: 8080
              protocol: TCP
          resources: {}
          volumeMounts:
            - name: host-time
              readOnly: true
              mountPath: /etc/localtime
          terminationMessagePath: /dev/termination-log
          terminationMessagePolicy: File
          imagePullPolicy: IfNotPresent
      restartPolicy: Always
      terminationGracePeriodSeconds: 30
      dnsPolicy: ClusterFirst
      serviceAccountName: default
      securityContext: {}
      imagePullSecrets:
        - name: docker-sign
      affinity: {}
      schedulerName: default-scheduler
  strategy:
    type: RollingUpdate
    rollingUpdate:
      maxUnavailable: 25%
      maxSurge: 25%
  revisionHistoryLimit: 10
  progressDeadlineSeconds: 600