k8s部署jenkins

标签：kubectl 部署 创建 yaml pvc Jenkins jenkins k8s

1. 部署

• Jenkins版本：2.375.1

创建命名空间：

kubectl create namespace kube-ops

创建PVC，为Jenkins提供数据持久化：

mkdir -p /root/jenkins_install && cd /root/jenkins_install
cat > jenkins_pvc.yaml <<EOF
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: jenkins-pvc
  namespace: kube-ops
spec:
  accessModes:
  - ReadWriteMany
  resources:
    requests:
      storage: 20Gi
EOF

这里我们使用的是默认的storageclasses.storage.k8s.io去创建pv，本地是用的nfs方式挂载本地目录：/nfs。

创建pvc：

kubectl apply -f jenkins_pvc.yaml

kubectl get pvc -n kube-ops
NAME          STATUS   VOLUME                                     CAPACITY   ACCESS MODES   STORAGECLASS   AGE
jenkins-pvc   Bound    pvc-027cb835-6aed-4d60-afa2-08e8842c7eb3   20Gi       RWX            nfs-storage    31s

创建角色授权：

cat > jenkins_account.yaml <<EOF
apiVersion: v1
kind: ServiceAccount
metadata:
  name: jenkins-sa
  namespace: kube-ops
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  name: jenkins-cr
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-crd
roleRef:
  kind: ClusterRole
  name: jenkins-cr
  apiGroup: rbac.authorization.k8s.io
subjects:
- kind: ServiceAccount
  name: jenkins-sa
  namespace: kube-ops
EOF

创建：

kubectl apply -f jenkins_account.yaml

在Kubernetes中部署Jenkins，新建Deployment，jenkins-deploy.yaml：

cat > jenkins_Deployment.yaml <<EOF
kind: Deployment
apiVersion: apps/v1
metadata:
  name: jenkins
  namespace: kube-ops
spec:
  replicas: 1
  selector:
    matchLabels:
      app: jenkins
  template:
    metadata:
      labels:
        app: jenkins
    spec:
      dnsPolicy: "None"
      dnsConfig:
        nameservers:
          - 8.8.8.8
      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
          protocol: TCP
        - containerPort: 50000
          name: agent
          protocol: TCP
        resources:
          limits:
            cpu: 2000m
            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-pvc
---
apiVersion: v1
kind: Service
metadata:
  name: jenkins
  namespace: kube-ops
  labels:
    app: jenkins
spec:
  selector:
    app: jenkins
  type: NodePort
  ports:
  - name: web
    port: 8080
    targetPort: web
    nodePort: 30002
  - name: agent
    port: 50000
    targetPort: agent
EOF

这里之前遇到过访问不到网络的问题，单独配置了dns：8.8.8.8给解决了。

创建：

kubectl apply -f jenkins_Deployment.yaml

访问svc：

kubectl get svc -n kube-ops
NAME      TYPE       CLUSTER-IP     EXTERNAL-IP   PORT(S)                          AGE
jenkins   NodePort   10.98.187.64   <none>        8080:30002/TCP,50000:30865/TCP   3h31m

链接：http://192.168.80.45:30002

查看密码：

kubectl logs -n kube-ops jenkins-7d7994fff5-92jvd
2022-12-31 03:43:19.145+0000 [id=31]    INFO    jenkins.install.SetupWizard#init:

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

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

580f0d4a0c8047a1b054b17c57dd907b

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

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

2. 安装插件

 

标签：kubectl,部署,创建,yaml,pvc,Jenkins,jenkins,k8s
From： https://www.cnblogs.com/Mercury-linux/p/17016397.html