Kubernetes部署jenkins

Jenkins Master运行在Kubernetes集群的一个node上，并且数据存储到volume上去，Jenkins Slave会按照需求动态的创建并且自动删除。

部署

首先需要nfs storageclass动态创建pv，参考这篇文章：https://1335402049.github.io/2020/09/16/Kubernetes%E4%B8%AD%E4%BD%BF%E7%94%A8NFS%E7%9A%84StorageClass/

应用 namespace

kubectl create ns devops

应用 rbac

apiVersion: v1
kind: ServiceAccount
metadata:
  name: jenkins-sa
  namespace: devops
---
apiVersion: rbac.authorization.k8s.io/v1beta1
kind: ClusterRoleBinding
metadata:
  name: jenkins-crd
roleRef:
  kind: ClusterRole
  name: cluster-admin
  apiGroup: rbac.authorization.k8s.io
subjects:
- kind: ServiceAccount
  name: jenkins-sa
  namespace: devops

应用 pvc

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: jenkins-pvc
  namespace: devops
  annotations:
    volume.beta.kubernetes.io/storage-class: "managed-nfs-storage"
spec:
  volumeMode: Filesystem
  accessModes:
    - ReadWriteMany
  resources:
    requests:
      storage: 3Gi

应用 deployment

apiVersion: apps/v1
kind: Deployment
metadata:
  name: jenkins
  namespace: devops
spec:
  replicas: 1
  selector:
    matchLabels:
      app: jenkins
  template:
    metadata:
      labels:
        app: jenkins
    spec:
      terminationGracePeriodSeconds: 10
      serviceAccountName: jenkins-sa
      containers:
        - name: jenkins
          image: jenkins/jenkins:lts
          imagePullPolicy: IfNotPresent
          env:
            - name: JAVA_OPTS
              value: -XshowSettings:vm -Dhudson.slaves.NodeProvisioner.initialDelay=0 -Dhudson.slaves.NodeProvisioner.MARGIN=50 -Dhudson.slaves.NodeProvisioner.MARGIN0=0.85 -Duser.timezone=Asia/Shanghai
          ports:
            - name: web
              containerPort: 8080
              protocol: TCP
            - name: agent
              containerPort: 50000
              protocol: TCP
          resources:
            limits:
              cpu: 1000m
              memory: 1Gi
            requests:
              cpu: 500m
              memory: 512Mi
          livenessProbe:
            httpGet:
              path: /login
              port: 8080
            initialDelaySeconds: 60
            timeoutSeconds: 5
            failureThreshold: 12
          readinessProbe:
            httpGet:
              path: /login
              port: 8080
            initialDelaySeconds: 60
            timeoutSeconds: 5
            failureThreshold: 12
          volumeMounts:
            - name: jenkinshome
              mountPath: /var/jenkins_home
      volumes:
        - name: jenkinshome
          persistentVolumeClaim:
            claimName: jenkins-pvc

应用 svc

apiVersion: v1
kind: Service
metadata:
  name: jenkins
  namespace: devops 
  labels:
    app: jenkins
spec:
  selector:
    app: jenkins
  type: NodePort
  ports:
  - name: web
    port: 8080
    targetPort: web
    nodePort: 30002
  - name: agent
    port: 50000
    targetPort: agent

部署

登录