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在k8s中安装jenkins

接上一篇，搭建好glusterfs集群后，我们接下来创建单独的卷给jenkins使用，脚本已写好，直接运行即可：

#!/bin/sh
 
if [ $# -lt 2 ];
then
    echo "please input at least 2 param"
    exit 0
fi
 
glusterfs_volume_name=$1
glusterfs_volume_path=$2
#dbSize=$3
 
 
gluster volume create $glusterfs_volume_name replica 2 gluster1:/data//brick1/$glusterfs_volume_path gluster2:/data//brick1/$glusterfs_volume_path force
 
gluster volume list
gluster volume start $glusterfs_volume_name

sh cg.sh  k8s-volume-jenkins-master jenkins-master

编写endpoints.yaml文件，内容如下：

---
apiVersion: v1
kind: Endpoints
metadata:
  name: glusterfs-cluster
  namespace: ci
subsets:
  - addresses: [{"ip": "23.234.215.72"}, {"ip": "108.166.210.228"}]
ports: [{"port": 24007}]
编写service.yaml文件，内容如下：
---
apiVersion: v1
kind: Service
metadata:
  name: glusterfs-cluster
  namespace: ci
spec:
  ports:
    - port: 24007
      targetPort: 24007
      protocol: TCP

创建namespace.yaml文件：

---
apiVersion: v1
kind: Namespace
metadata:
  name: ci

创建jenkins-master-pv.yaml

apiVersion: v1
kind: PersistentVolume
metadata:
  name: pv-jenkins-master
  namespace: ci
spec:
  capacity:
    storage: 1Gi
  accessModes:
    - ReadWriteMany
  glusterfs:
    endpoints: "glusterfs-cluster"
    path: "k8s-volume-jenkins-master"
readOnly: false

创建pvc：jenkins-master-pvc.yaml

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: pvc-jenkins-master
  namespace: ci
spec:
  accessModes:
    - ReadWriteMany
  resources:
    requests:
      storage: 1Gi

创建jenkins-deployment.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  namespace: ci
  name: jenkins
spec:
  replicas: 1
  selector:
    matchLabels:
      app: jenkins
  template:
    metadata:
      labels:
        app: jenkins
    spec:
      securityContext:
        fsGroup: 1000 
        runAsUser: 0
      containers:
        - name: jenkins
          image: jenkins
          ports:
            - containerPort: 8000
          volumeMounts:
            - name: home
              mountPath: "/var/jenkins_home"
      volumes:
        - name: home
          persistentVolumeClaim:
            claimName: pvc-jenkins-master

创建jenkins_service.yaml：

---
apiVersion: v1
kind: Service
metadata:
  namespace: ci
  name: jenkins
  labels:
    name: jenkins
spec:
  ports:
  - port: 8080
    targetPort: 8080
    name: jenkins
    protocol: TCP
  selector:
    app: jenkins
  type: NodePort

运行：

kubectl create  -f namespace.yaml
kubectl create -f jenkins-master-pv.yaml
kubectl create -f jenkins-master-pvc.yaml
kubectl create -f jenkins-deployment.yaml
kubectl create -f jenkins_service.yaml

安装过程中遇到的问题：

Jenkins启动,backoffrestarfailling

查看日志，报错如下：

kubectl logs jenkins-7c97f9d6d9-q6fk9  -n ci
 
touch: cannot touch '/var/jenkins_home/copy_reference_file.log': Permission denied
 
Can not write to /var/jenkins_home/copy_reference_file.log. Wrong volume permissions?

加了一段配置解决：

spec:
      securityContext:
        fsGroup: 1000 
        runAsUser: 0

因为jenkins 运行的用户 id是1000，加上权限。

进入容器：

kubectl exec -it -n ci jenkins-bff9cccdd-45jzx – bash

more /var/jenkins_home/secrets/initialAdminPassword #查看初始密码

用Node ip加端口访问，发现正常。

原文 https://www.mindg.cn/?p=2607

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所属分类： Java 编程技术

本文标签： jenkins API Word db 配置 http node 安装 REST id 端口集群 list Master rmi tar Select IO App Service https CTO Security ip TCP ACE
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