Kubernetes部署Jenkins

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准备nfs存储

代码语言：javascript复制

这是我已经做好的nfs存储目录
cd /data/nfsData/

创建jenkins存储目录
mkdir jenkins

修改nfs配置
vim /etc/exports
加上如下内容保存
/data/nfsData/jenkins *(rw,no_root_squash,no_all_squash,sync)

重启nfs服务
systemctl restart nfs rpcbind

需要修改下目录权限
因为当映射本地数据卷时，/data/nfsData/jenkins目录的拥有者为root用户，而容器中jenkins user的uid为1000
chmod 777 jenkins/
chown -R 1000:1000 jenkins

在Master一台节点上操作

创建存储jenkins资源清单目录

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mkdir /root/jenkins

创建命名空间资源清单

vim 01-jenkins-ns.yaml

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apiVersion: v1
kind: Namespace
metadata:
  name: jenkins-k8s

创建Jenkins pv资源清单

vim 02-jenkins-pv.yaml

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apiVersion: v1
kind: PersistentVolume
metadata:
  name: jenkins-k8s-pv
spec:
  capacity:
    storage: 10Gi
  accessModes:
  - ReadWriteMany
  nfs:
    server: nfs.myit.icu
    path: /data/nfsData/jenkins

创建Jenkins pvc资源清单

vim 03-jenkins-pvc.yaml

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kind: PersistentVolumeClaim
apiVersion: v1
metadata:
  name: jenkins-k8s-pvc
  namespace: jenkins-k8s
spec:
  resources:
    requests:
      storage: 10Gi
  accessModes:
    - ReadWriteMany

创建Jenkins sa资源清单

vim 04-jenkins-account.yaml

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apiVersion: v1
kind: ServiceAccount
metadata:
  name: jenkins-k8s-sa
  namespace: jenkins-k8s

创建Jenkins授权规则

vim 05-jenkins-cluster-role-binding.yaml

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

创建Jenkins资源

vim 06-jenkins-deployment.yaml ### 如果出现问题，可以把探测关掉---待测试

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apiVersion: apps/v1
kind: Deployment
metadata:
  name: jenkins
  namespace: jenkins-k8s
spec:
  replicas: 
  selector:
    matchLabels:
      app: jenkins
  template:
    metadata:
      labels:
        app: jenkins
    spec:
      serviceAccount: jenkins-k8s-sa
      containers:
      - name: jenkins
        image: jenkins/jenkins:lts
        imagePullPolicy: IfNotPresent
        ports:
        - containerPort: 
          name: web
          protocol: TCP
        - containerPort: 
          name: agent
          protocol: TCP
        resources:
          limits:
            cpu: 1000m
            memory: 1Gi
          requests:
            cpu: 500m
            memory: 512Mi
        livenessProbe:
          httpGet:
            path: /login
            port: 
          initialDelaySeconds: 
          timeoutSeconds: 
          failureThreshold: 
        readinessProbe:
          httpGet:
            path: /login
            port: 
          initialDelaySeconds: 
          timeoutSeconds: 
          failureThreshold: 
        volumeMounts:
        - name: jenkins-volume
          subPath: jenkins-home
          mountPath: /var/jenkins_home
      volumes:
      - name: jenkins-volume
        persistentVolumeClaim:
          claimName: jenkins-k8s-pvc

创建Jenkins服务资源清单

vim 07-jenkins-service.yaml

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apiVersion: v1 
kind: Service
metadata:
  name: jenkins-service
  namespace: jenkins-k8s
  labels:
    app: jenkins 
spec: 
  selector: 
    app: jenkins 
  type: NodePort 
  ports: 
  - name: web 
    port:  
    targetPort: web 
    nodePort:  
  - name: agent 
    port:  
    targetPort: agent

挨个创建资源

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kubectl create -f 01-jenkins-ns.yaml
kubectl create -f 02-jenkins-pv.yaml
kubectl create -f 03-jenkins-pvc.yaml
kubectl create -f 04-jenkins-account.yaml
kubectl create -f 05-jenkins-cluster-role-binding.yaml
kubectl create -f 06-jenkins-deployment.yaml
kubectl create -f 07-jenkins-service.yaml

查看各资源状态

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kubectl get pods,svc -n jenkins-k8s

获取 Jenkins 生成的 Token

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kubectl logs $(kubectl get pods -n jenkins-k8s | awk '{print $1}' | grep jenkins) -n jenkins-k8s
会出现以下内容：
*************************************************************
*************************************************************
*************************************************************

Jenkins initial setup is required. An admin user has been created and a password generated.
Please use the following password to proceed to installation:

e989cb4f27a942948fb6163674ef512d

This may also be found at: /var/jenkins_home/secrets/initialAdminPassword

*************************************************************
*************************************************************
*************************************************************

也可以通过该命令进行获取

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kubectl exec -n jenkins-k8s $(kubectl get pods -n jenkins-k8s | awk '{print $1}' | grep jenkins) -it -- cat /var/jenkins_home/secrets/initialAdminPassword

也可以在nfs存储服务器上进行获取

代码语言：javascript复制

密码在nfs自己映射的路径下

cat /data/nfsData/jenkins/jenkins-home/secrets/initialAdminPassword

安装kubernetes相关插件： Kubernetes CLI Plugin Kubernetes Client API Plugin Kubernetes Credentials Plugin Kubernetes plugin

jenkins ide node.js kubernetes

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