前置步骤：

• Docker 版 GitLab CICD 实践1——GitLab 部署 [[Docker 版 GitLab CICD 实践]]
• Docker 版 GitLab CICD 实践2——Runner 部署 [[Docker 版 GitLab CICD 实践——Runner 部署]]

官方文档

编写结构类似Jenkins pineline流水线

GitLab CI/CD Pipeline Configuration Reference

GitLab CI/CD Pipeline Configuration Reference

GitLab CI/CD pipelines are configured using a YAML file called .gitlab-ci.yml within each project.

The .gitlab-ci.yml file defines the structure and order of the pipelines and determines:

• What to execute using GitLab Runner.
• What decisions to make when specific conditions are encountered. For example, when a process succeeds or fails.

This topic covers CI/CD pipeline configuration. For other CI/CD configuration information, see:

• GitLab CI/CD Variables, for configuring the environment the pipelines run in.
• GitLab Runner advanced configuration, for configuring GitLab Runner.

We have complete examples of configuring pipelines:

• For a quick introduction to GitLab CI, follow our quick start guide.
• For a collection of examples, see GitLab CI/CD Examples.
• To see a large .gitlab-ci.yml file used in an enterprise, see the .gitlab-ci.yml file for gitlab-ce.

目标

• maven项目自动打包
• 自动测试
• 自动镜像构建并上传

官方参数表列出了作业的可用参数：

注： 参数types和type被弃用。

参考

官方构建案例

Deploy a Spring Boot application to Cloud Foundry with GitLab CI/CD

参考其脚本

Configure GitLab CI/CD to deploy your application

Now we need to add the GitLab CI/CD configuration file (.gitlab-ci.yml) to our project’s root. This is how GitLab figures out what commands need to be run whenever code is pushed to our repository. We will add the following .gitlab-ci.yml file to the root directory of the repository, GitLab will detect it automatically and run the steps defined once we push our code:

image: java:8

stages:
  - build
  - deploy

build:
  stage: build
  script: ./mvnw package
  artifacts:
    paths:
      - target/demo-0.0.1-SNAPSHOT.jar

production:
  stage: deploy
  script:
  - curl --location "https://cli.run.pivotal.io/stable?release=linux64-binary&source=github" | tar zx
  - ./cf login -u $CF_USERNAME -p $CF_PASSWORD -a api.run.pivotal.io
  - ./cf push
  only:
  - master

配置

全局变量

进入工程CI设置配置全局变量脚本，包含镜像仓库登陆名称、密码、打包名称等

配置全局变量目的在于配置脚本中不应该包含密码等敏感信息

若希望使用GitLab内置环境变量，可参考官方表格

GitLab CI/CD environment variables

CI脚本

结合可用参数和样例配置，根据已经存在的SpringBoot项目编写响应的CI脚本.gitlab-ci.yml

image: docker:stable
services:
  - docker:dind

variables:
  DOCKER_DRIVER: overlay
  SPRING_PROFILES_ACTIVE: gitlab-ci

stages:
  - build
  - package

maven-build:
  image: maven:3-jdk-8
  stage: build
  script: "mvn package -B"
  artifacts:
    paths:
      - target/*.jar

docker-build:
  stage: package
  script:
    - docker build -t $CONTAINER_IMAGE:latest .
    - docker login -u $DOCKER_HUB_USER -p $DOCKER_HUB_PASS
    - docker push $CONTAINER_IMAGE:latest

该脚本对于满足脚本目标的工程都可复用，若需要测试，则增加相关的测试步骤即可

此处由于工程包含外部依赖关系，不在构建时测试

自动构建

默认的触发构建事件为commit等

触发后会自动执行任务

Maven自动触发构建，自动镜像打包

自动上传（推送）镜像

执行结果

若执行失败则会发送邮件给开发人员

CICD全套流程目标实现！

总结

不管使用GitLab CICD或者是使用Jenkins+Ansible的方式，目标都在于践行DevOps，打通开发与运维流程，一旦配置好CICD流程，往后开发人员便不再操心打包、构建等操作，可以专注开发