Kubernetes - - k8s - v1.12.3 Helm持久化部署 Jenkins 集成 OpenLDAP 登录

1，基本概念

Jenkins在DevOps工具链中是核心的流程管理中心，负责串联系统的构建流程、测试流程、镜像制作流程、部署流程等，在持续集成中常用到的工具如下：
Maven：源代码编译工具
RobotFramework：自动化测试工具
NewMan：接口自动化测试工具
SonarQube Scanner：源代码扫描工具
GitLab：代码仓库工具
Docker：镜像制作工具
kubectl：K8S工具
目前使用的流程是通过Redmine和GitLab中创建项目、开发提交代码、触发jenkins完成镜像构建并自动部署到k8s集群。

2，部署

2.1 下载代码

git clone https://github.com/xiaoqshuo/k8s-cluster.git

2.2 安装 Jenkins

[root@k8s-master01 jenkins-helm]# helm install --name jenkins . --namespace public-service
NAME:   jenkins
LAST DEPLOYED: Fri Dec 21 08:49:59 2018
NAMESPACE: public-service
STATUS: DEPLOYED

RESOURCES:
==> v1/Service
NAME           AGE
jenkins-agent  1s
jenkins        1s

==> v1beta1/Deployment
jenkins  1s

==> v1/Secret
jenkins  2s

==> v1/ConfigMap
jenkins        2s
jenkins-tests  2s

==> v1/PersistentVolumeClaim
jenkins  2s


NOTES:
1. Get your 'admin' user password by running:
  printf $(kubectl get secret --namespace public-service jenkins -o jsonpath="{.data.jenkins-admin-password}" | base64 --decode);echo
2. Get the Jenkins URL to visit by running these commands in the same shell:
  export POD_NAME=$(kubectl get pods --namespace public-service -l "component=jenkins-master" -o jsonpath="{.items[0].metadata.name}")
  echo http://127.0.0.1:8080
  kubectl port-forward $POD_NAME 8080:8080

3. Login with the password from step 1 and the username: admin

For more information on running Jenkins on Kubernetes, visit:
https://cloud.google.com/solutions/jenkins-on-container-engine

2.3 创建 ingress

[root@k8s-master01 jenkins-helm]# kubectl create -f traefik-jenkins.yaml
ingress.extensions/jenkins created

2.4 查看状态

[root@k8s-master01 jenkins-helm]# kubectl get po,svc,ingress,pvc -n public-service | grep jenkins
pod/jenkins-678c74d8f8-dzvcm           1/1     Running            1          16m

service/glusterfs-dynamic-jenkins                  ClusterIP   10.96.104.25     <none>        1/TCP                            15m
service/jenkins                                    ClusterIP   10.103.109.143   <none>        8080/TCP                         16m
service/jenkins-agent                              ClusterIP   10.104.102.106   <none>        50000/TCP                        16m

ingress.extensions/jenkins   jenkins.k8s.net             80      19h

persistentvolumeclaim/jenkins                                                    Bound    pvc-5ba828d9-04ba-11e9-a5f6-000c2927a0d0   20Gi       RWX            gluster-heketi                 16m

2.5 访问测试

解析域名 https://jenkins.k8s.net 至集群

3，配置 Jenkins

3.1 登录

3.1.1 查看密码

[root@k8s-master01 jenkins-helm]# kubectl get secret --namespace public-service jenkins -o jsonpath="{.data.jenkins-admin-password}" | base64 --decode
OZy8B3uklZ