# 使用Jenkins进行持续集成与发布

我们基于Jenkins的CI/CD流程如下所示。

![基于Jenkins的持续集成与发布](/files/-LxznAZc9r1VcAhWl-zg)

## 流程说明

应用构建和发布流程说明。

1. 用户向Gitlab提交代码，代码中必须包含`Dockerfile`
2. 将代码提交到远程仓库
3. 用户在发布应用时需要填写git仓库地址和分支、服务类型、服务名称、资源数量、实例个数，确定后触发Jenkins自动构建
4. Jenkins的CI流水线自动编译代码并打包成docker镜像推送到Harbor镜像仓库
5. Jenkins的CI流水线中包括了自定义脚本，根据我们已准备好的kubernetes的YAML模板，将其中的变量替换成用户输入的选项
6. 生成应用的kubernetes YAML配置文件
7. 更新Ingress的配置，根据新部署的应用的名称，在ingress的配置文件中增加一条路由信息
8. 更新PowerDNS，向其中插入一条DNS记录，IP地址是边缘节点的IP地址。关于边缘节点，请查看[边缘节点配置](/kubernetes-handbook/zui-jia-shi-jian/service-discovery-and-loadbalancing/edge-node-configuration.md)
9. Jenkins调用kubernetes的API，部署应用


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