k8s部署Jenkins

创建命名空间

cat >>0-namespace.yaml <<EOF
apiVersion: v1
kind: Namespace
metadata:
  name: jenkins
  labels:
    name: jenkins
EOF

kubectl create -f 0-namespace.yaml

创建ServiceAccount

cat >>1-ServiceAccount.yaml <<EOF
apiVersion: v1
kind: ServiceAccount
metadata:
  name: jenkins-admin
  namespace: jenkins

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

kubectl create -f 1-ServiceAccount.yaml

创建pvc

cat >>2-jenkins-pvc.yaml <<EOF
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: jenkins-pv-claim
  namespace: jenkins
  labels:
    app: jenkins
spec:
  storageClassName: nfs
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 100Gi
EOF

kubectl create -f 2-jenkins-pvc.yaml

部署Jenkins

cat >>3-jenkins-deploy.yaml <<EOF
apiVersion: apps/v1
kind: Deployment
metadata:
  name: jenkins
  namespace: jenkins 
spec:
  replicas: 1
  selector:
    matchLabels:
      name: jenkins
  template:
    metadata:
      name: jenkins
      labels:
        name: jenkins
    spec:
      serviceAccount: jenkins-admin
      nodeName: k8smaster01
      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:
        - containerPort: 8080
          name: web
        - containerPort: 50000
          name: agent
        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
      securityContext:
        fsGroup: 1000
      volumes:
      - name: jenkinshome
        persistentVolumeClaim:
          claimName: jenkins-pv-claim
EOF

kubectl create -f 3-jenkins-deploy.yaml

创建svc

cat >>4-jenkins-svc.yaml <<EOF
apiVersion: v1
kind: Service
metadata:
  name: jenkins
  namespace: jenkins
  labels:
    app: jenkins
  annotations: {}
spec:
  type: NodePort
  ports:
  - name: http
    port: 8080
    targetPort: 8080
  selector:
    name: jenkins
---
apiVersion: v1
kind: Service
metadata:
  name: jenkins-jnlp
  namespace: jenkins
  labels:
    app: jenkins
spec:
  type: ClusterIP
  ports:
  - name: agent
    port: 50000
    targetPort: 50000
  selector:
    name: jenkins
EOF

kubectl create -f 4-jenkins-svc.yaml