Kubernetes部署jenkins

• 配置存储方式
• 创建命名空间
• 创建RBAC权限
• 创建无头服务
• 创建有状态服务
• 创建ingress
• 部署

配置存储方式

本次使用 NFS 作为存储，请确保提前部署好 storageClass。

创建命名空间

kubectl create ns ops

创建RBAC权限

# serviceaccount
apiVersion: v1
kind: ServiceAccount
metadata:
  name: jenkins
  namespace: ops

---
# clusterRole
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: jenkins
rules:
  - apiGroups: ["extensions", "apps"]
    resources: ["deployments", "ingresses"]
    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", "events"]
    verbs: ["get", "list", "watch"]
  - apiGroups: [""]
    resources: ["secrets"]
    verbs: ["get"]

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

创建无头服务

apiVersion: v1
kind: Service
metadata:
  name: jenkins-svc
  namespace: ops
spec:
  clusterIP: None
  selector:
    app: jenkins
  ports:
    - name: http
      port: 8080
      targetPort: 8080
    - name: agent
      port: 50000
      targetPort: 50000

创建有状态服务

apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: jenkins
  namespace: ops
spec:
  serviceName: "jenkins-svc"
  selector:
    matchLabels:
      app: jenkins
  template:
    metadata:
      labels:
        app: jenkins
    spec:
      serviceAccount: jenkins
      #imagePullSecrets:
      #- name: harbor-admin
      containers:
        - name: jenkins
          #image: jenkins/jenkins:2.401.2-lts
          image: jenkins/jenkins:2.473-jdk17
          imagePullPolicy: IfNotPresent
          securityContext:     # 添加参数启用容器root权限
            privileged: true
            runAsUser: 0        # root身份运行
          env:
          - name: JAVA_OPTS     
            value: -Duser.timezone=Asia/Shanghai
          ports:
            - name: http
              containerPort: 8080
            - name: agent
              containerPort: 50000 
          volumeMounts:
            - name: data
              mountPath: /var/jenkins_home

  volumeClaimTemplates:
  - metadata:
      name: data
    spec:
      accessModes: ["ReadWriteOnce"]
      storageClassName: "nfs-storage"
      resources:
        requests:
          storage: 1Gi

创建ingress

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: jenkins-ingress
  namespace: ops
spec:
  ingressClassName: "nginx"
  rules:
  - host: jenkins.ops.net
    http:
      paths:
      - path: /
        pathType: Prefix
        backend:
          service:
            name: jenkins-svc 
            port:
              name: http

部署

kubectl apply -f .