kubernetes-部署jenkins案例

step1 创建ns

# Maintainer: MageEdu <mage@magedu.com>
---
apiVersion: v1
kind: Namespace
metadata:
  name: jenkins

stsp2 创建pvc

---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: jenkins-pvc
  namespace: jenkins
spec:
  accessModes:
    - ReadWriteMany
  resources:
    requests:
      storage: 10Gi
  storageClassName: nfs-csi

step3 rbac配置

apiVersion: v1
kind: ServiceAccount
metadata:
  name: jenkins-master
  namespace: jenkins

---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  name: jenkins-master
rules:
  - apiGroups: ["extensions", "apps"]
    resources: ["deployments"]
    verbs: ["create", "delete", "get", "list", "watch", "patch", "update"]
  - apiGroups: [""]
    resources: ["services"]
    verbs: ["create", "delete", "get", "list", "watch", "patch", "update"]
  - apiGroups: [""]
    resources: ["pods"]
    verbs: ["create","delete","get","list","patch","update","watch"]
  - apiGroups: [""]
    resources: ["pods/exec"]
    verbs: ["create","delete","get","list","patch","update","watch"]
  - apiGroups: [""]
    resources: ["pods/log"]
    verbs: ["get","list","watch"]
  - apiGroups: [""]
    resources: ["secrets"]
    verbs: ["get"]

---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: jenkins-master
roleRef:
  kind: ClusterRole
  name: jenkins-master
  apiGroup: rbac.authorization.k8s.io
subjects:
- kind: ServiceAccount
  name: jenkins-master
  namespace: jenkins

step4 部署jenkins

---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: jenkins
  namespace: jenkins 
spec:
  replicas: 1
  selector:
    matchLabels:
      app: jenkins
  template:
    metadata:
      labels:
        app: jenkins
    spec:
      serviceAccountName: jenkins-master
      volumes:
      - name: jenkins-store
        persistentVolumeClaim:
          claimName: jenkins-pvc
      initContainers:
      - name: fix-permissions
        image: alpine
        command: ["sh", "-c", "chown -R 1000:1000 /var/jenkins_home/"]
        securityContext:
          privileged: true
        volumeMounts:
        - name: jenkins-store
          mountPath: /var/jenkins_home/
      containers:
      - name: jenkins
        image: jenkins/jenkins:jdk17
        #image: jenkins/jenkins:lts-jdk11
        volumeMounts:
        - name: jenkins-store
          mountPath: /var/jenkins_home/
        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 -Djenkins.install.runSetupWizard=true
        ports:
        - containerPort: 8080
          name: web
          protocol: TCP
        - containerPort: 50000
          name: agent
          protocol: TCP

step5 创建service 将jenkins的端口暴露出来

---
apiVersion: v1
kind: Service
metadata:
  name: jenkins
  namespace: jenkins 
  labels:
    app: jenkins
spec:
  selector:
    app: jenkins
  type: NodePort
  ports:
  - name: http
    port: 8080
    targetPort: 8080
---
apiVersion: v1
kind: Service
metadata:
  name: jenkins-jnlp
  namespace: jenkins 
  labels:
    app: jenkins
spec:
  selector:
    app: jenkins
  ports:
  - name: agent
    port: 50000
    targetPort: 50000

step6

---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: pvc-maven-cache
  namespace: jenkins
spec:
  accessModes:
    - ReadWriteMany
  resources:
    requests:
      storage: 10Gi
  storageClassName: nfs-csi

step7 创建Ingress

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: jenkins
  namespace: jenkins
spec:
  ingressClassName: nginx
  rules:
  - host: cicd.magedu.com
    http:
      paths:
      - backend:
          service:
            name: jenkins
            port: 
              number: 8080 
        path: /
        pathType: Prefix
  - host: jenkins.magedu.com
    http:
      paths:
      - backend:
          service:
            name: jenkins
            port: 
              number: 8080 
        path: /
        pathType: Prefix

获取jenkins的密码

kubectl logs jenkins-7dbbcb8cb9-7ccq7 -n jenkins

添加新集群

jenkins在pod中 所以 kubernetes.default.svc