jenkins 部署到k8s中使用宿主机Docker及kubectl的配置方式记录

# jenkins使用官方yaml部署，记录在jenkins 容器中调用主机Docker 进行build
# 由于maven编译需要jdk，在jenkins中可以配置oracle账号选择jdk版本自动下载，但oracle网站有时不稳定造成jdk无法下载，所以以下为离线jdk部署方式
# 离线配置jdk方式：下载jdk包并解压到/mnt/data/jenkins_home/tools/hudson.model.JDK/jdk8/目录下，在jenkins中配置jdk相对路径/var/jenkins_home/tools/hudson.model.JDK/jdk8/jdk1.8.0_221（jdk8后面路径要和解压后的jdk路径一致）
# jenkins使用主机vm docker时需要挂载宿主机docker的几个路径并设置宿主机docker.sock权限：chmod 777 /var/run/docker.sock 

---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  namespace: monitor-app
  name: jenkins
  labels:
    name: jenkins
spec:
  selector:
    matchLabels:
      name: jenkins
  serviceName: jenkins
  replicas: 1
  updateStrategy:
    type: RollingUpdate
  template:
    metadata:
      name: jenkins
      labels:
        name: jenkins
    spec:
      terminationGracePeriodSeconds: 10
      serviceAccountName: jenkins
      nodeSelector:
        jtype: jenkins
      containers:
        - name: jenkins
          command:
            - /sbin/tini
            - /usr/local/bin/jenkins.sh
            - --prefix=/jenkins
          image: jenkins/jenkins:lts-alpine
          imagePullPolicy: IfNotPresent
          ports:
            - containerPort: 8080
            - containerPort: 50000
          resources:
            limits:
              cpu: 1
              memory: 2Gi
            requests:
              cpu: 0.5
              memory: 500Mi
          env:
            - name: LIMITS_MEMORY
              valueFrom:
                resourceFieldRef:
                  resource: limits.memory
                  divisor: 1Mi
            - name: JAVA_OPTS
              # value: -XX:+UnlockExperimentalVMOptions -XX:+UseCGroupMemoryLimitForHeap -XX:MaxRAMFraction=1 -XshowSettings:vm -Dhudson.slaves.NodeProvisioner.initialDelay=0 -Dhudson.slaves.NodeProvisioner.MARGIN=50 -Dhudson.slaves.NodeProvisioner.MARGIN0=0.85
              value: -Xmx$(LIMITS_MEMORY)m -XshowSettings:vm -Dhudson.slaves.NodeProvisioner.initialDelay=0 -Dhudson.slaves.NodeProvisioner.MARGIN=50 -Dhudson.slaves.NodeProvisioner.MARGIN0=0.85 -D--prefix=/jenkins
          volumeMounts:
            - name: jenkins-home
              mountPath: /var/jenkins_home
#            - name: docker
#              mountPath: /usr/bin/docker
#            - name: docker-sock
#              mountPath: /var/run/docker.sock
#            - name: docker-login
#              mountPath: /root/.docker/config.json #将docker登录信息挂载到容器中
 
          livenessProbe:
            httpGet:
              path: /jenkins/login
              port: 8080
            initialDelaySeconds: 60
            timeoutSeconds: 5
            failureThreshold: 12 # ~2 minutes
          readinessProbe:
            httpGet:
              path: /jenkins/login
              port: 8080
            initialDelaySeconds: 60
            timeoutSeconds: 5
            failureThreshold: 12
      securityContext:
        fsGroup: 1000
      volumes:
        - name: jenkins-home
          hostPath:
            path: /mnt/data/jenkins
#        - name: docker
#          hostPath:
#            path: /usr/bin/docker
#        - name: docker-sock
#          hostPath:
#            path: /var/run/docker.sock
#         - hostPath:
#             path: /root/.docker/config.json
#           name: docker-login

#         - hostPath:
#             path: /usr/bin/kubectl
#           name: kubectl

     

---
apiVersion: v1
kind: Service
metadata:
  name: jenkins
  namespace: monitor-app
spec:
  selector:
    name: jenkins
  ports:
    - name: http
      port: 8066
      targetPort: 8080
      protocol: TCP
    - name: agent
      port: 50000
      protocol: TCP