目录
前言
pipeline
接下来先来个小例子
关键字参数
Jobs
before_script and after_script
stages
stage
script
only and except
tags
allow_failure
when
artifacts
parallel
include
variables
Special YAML features
Skipping jobs
参考文章:
1、GitLab的CI自动编译的实现(基础) : https://www.jianshu.com/p/b69304279c5f
2、gitlab-ci.yml 配置Gitlab pipeline以达到持续集成的方法 (参数讲解): https://www.jianshu.com/p/617f035f01b8
3、持续集成之.gitlab-ci.yml篇(命令及示例讲解):
4、gitlab 官方文档地址(官):https://docs.gitlab.com/ee/ci/yaml/README.html
前言
从版本7.12开始,GitLab CI使用YAML文件(.gitlab-ci.yml)进行项目配置,该文件位于代码仓库的根目录中,包含有关如何构建项目的pipeline,以及ppeline需要完成哪些工作。
不难见到在gitlab上的项目基本都会进行自动编译以保证代码的安全性,可以看到仓库的根目录下有一个文件:.gitlab-ci.yml,该文件能实现推送到远端的代码进行自动编译(当然在这之前已经做了gitlab-runner的安装与设置了,可以参考上面说的第2篇文档)。
pipeline
一次 Pipeline 其实相当于一次构建任务,里面可以包含多个流程,如build、test、deploy测试服务器、部署生产服务器等流程,任何成员的commit push到GitLab上时都可以触发 Pipeline。
接下来先来个小例子
stages:
- build
- test
job1:
stage: test
script:
- sh test.sh
artifacts:
paths:
- data_test/
job2:
stage: build
script:
- echo 'suceed test' >> txt1
上面的代码块定义两个阶段(stages),build和test两步,stages中的阶段按写的顺序进行,先build再test;接下来有两个工作要执行job1/job2,job1属于test阶段的工作,job2属于build阶段的工作,所以先执行job2再job1,job下面的关键字stage定义该job属于哪个阶段,关键字script下面定要执行的命令。
下面是在Gitlab-runner中的运行结果:
build:
Running with gitlab-ci-multi-runner 1.11.2 (0489844)
on mac-runner (e7d87f13)
Using Shell executor...
Running on shuchaodeMacBook-Pro.local...
Fetching changes...
Removing data_test/190102_NS500203_0435_AHKHKWBGX9.Zscore.xls
Removing data_test/190102_NS500203_0435_AHKHKWBGX9.sum.txt.cv.csv
Removing data_test/190102_NS500203_0435_AHKHKWBGX9_mapChr.xls
HEAD is now at 7387b3c Delete 190102_NS500203_0435_AHKHKWBGX9.sum.txt.cv.csv
From http://192.168.4.168:10080/shujingchao/my_test
7387b3c..07e1d96 master -> origin/master
Checking out 07e1d961 as master...
Skipping Git submodules setup
$ echo 'suceed test' >> txt1
Job succeeded
test:
Running with gitlab-ci-multi-runner 1.11.2 (0489844)
on mac-runner (e7d87f13)
Using Shell executor...
Running on shuchaodeMacBook-Pro.local...
Fetching changes...
HEAD is now at 07e1d96 Delete 190102_NS500203_0435_AHKHKWBGX9.Zscore.xls
Checking out 07e1d961 as master...
Skipping Git submodules setup
$ sh test.sh
Uploading artifacts...
data_test/: found 6 matching files
Uploading artifacts to coordinator... ok id=2841 responseStatus=201 Created token=V9Z53_t3
Job succeeded
关键字参数
该文件通过一系列的关键字参数来定义pipeline的每一个每一项任务的执行方式,接下来就是各项参数的函数以及用法。
Jobs
YAML文件定义了一组具有约束的作业,说明应该何时运行它们。可以指定无限数量的作业,这些作业被定义为任意名称的抬头,但是始终必须至少应包含script子句。
job1:
script: "execute-script-for-job1"
job2:
script: "execute-script-for-job2"
上述配置了两个单独的作业流程,每个job由单独的script执行命令,每项job都是独立运行,如果是相同stage的多项job会并行运行。作业必须具有唯一的名字,但不能以以下关键字来定义:
image
services
stages
types
before_script
after_script
variables
cache
job内定义作业流程的参数列表
Keyword | Required | Description |
yes | 定义在runner中执行的命令 | |
no | Defines a configuration entry that this job is going to inherit from | |
no | Defines a configuration entry that allows this job to include external YAML files | |
no | Use docker image, covered in Using Docker Images | |
no | Use docker services, covered in Using Docker Images | |
no | 定义job属于哪个阶段,默认test阶段 | |
type | no |
|
no | 定义job层次的变量 | |
no | 定义哪些分支或tag的修改触发该流程 | |
no | 定义哪些分支或tag的修改不触发该流程 | |
no | 定义哪个标签的runner来执行,该标签指runner配置时的名称,不是Git的tag分支 | |
no | Allow job to fail. Failed job doesn’t contribute to commit status | |
no | Define when to run job. Can be | |
no | 定义该job依赖于哪项job的结果,用于把之前job的附件传进来 | |
no | 定义job产生的附件,可用于下载和保存以及传递,没有该项设置产生的过程文件都会被删除 | |
no | 定义缓存的文件或文件夹,如果是在job外定义则为全局变量 | |
no | 定义job执行前的操作 | |
no | 定义job执行后的操作 | |
no | Defines a name of environment to which deployment is done by this job | |
no | Define code coverage settings for a given job | |
no | 定义任务失败后的重复执行次数或时间 | |
no | 定义并行的任务数量,限于2~50 | |
no | Defines a downstream pipeline trigger |
before_script and after_script
before_script and after_script定义作业前后的操作,可以定义全局作业前后的操作,也可以是job内作业前后的操作。
before_script:
- global before script
job:
before_script:
- execute this instead of global before script
script:
- my command
after_script:
- execute this after my script
stages
定义pipeline的全部阶段(stage),阶段内所有任务并行执行,全部执行成功开始下一阶段任务,任何阶段内任意job执行失败都会导致pipeline失败,所有stage,job执行成功后pipeline会显示pass。如果未定义stages,则默认有build、test、deploy三个阶段,如果未定义stage,则默认test阶段
stages:
- build
- test
- deploy
stage
定义job属于哪个stage,默认test
stages:
- build
- test
- deploy
job 1:
stage: build
script: make build dependencies
job 2:
stage: build
script: make build artifacts
job 3:
stage: test
script: make test
job 4:
stage: deploy
script: make deploy
script
job内唯一一项必须的关键字设置,配置runner执行的shell命令,可单行也可多行。
job1:
script: "bundle exec rspec"
job2:
script:
- uname -a
- bundle exec rspec
only and except
only定义在哪个分支或tag上的修改触发执行
except定义哪个分支或tag的修改不触发任务的执行
允许使用正则表达式指定
允许指定的一些关键字:
Value | Description |
| When a git reference of a pipeline is a branch. |
| When a git reference of a pipeline is a tag. |
| When pipeline has been triggered by a second pipelines API (not triggers API). |
| When using CI services other than GitLab. |
| For multi-project triggers, created using the API with |
| Pipeline is triggered by a |
| For scheduled pipelines. |
| For pipelines created using a trigger token. |
| For pipelines created using Run pipeline button in GitLab UI (under your project’s Pipelines). |
| When a merge request is created or updated (See pipelines for merge requests). |
下面这个例子只执行issue-开头的refs,所有branch跳过
job:
# use regexp
only:
- /^issue-.*$/
# use special keyword
except:
- branches
下面的例子执行gitlab-org/gitlab-ce上的所有分支,除了master
job:
only:
- branches@gitlab-org/gitlab-ce
except:
- master@gitlab-org/gitlab-ce
如果任务没有指定only参数,则默认['branches', 'tags'],未指定except,则默认为空。
tags
tags允许指定已经关联的runner来执行任务
下面的例子由定义为ruby和postgres的runner来执行
job:
tags:
- ruby
- postgres
也可以为不同的job指定不同不同的runner,例如windos和mac上的任务由不同的runner执行
windows job:
stage:
- build
tags:
- windows
script:
- echo Hello, %USERNAME%!
osx job:
stage:
- build
tags:
- mac
script:
- echo "Hello, $USER!"
allow_failure
allow_failure关键字允许该项job失败后不影响其他任务的继续执行,如果其他任务全部执行成功也会显示pipeline pass,只是该任务提示橙色警告标示,该设置默认false不启动;下面的例子job1失败后不会影响后续任务job2/job3的执行
job1:
stage: test
script:
- execute_script_that_will_fail
allow_failure: true
job2:
stage: test
script:
- execute_script_that_will_succeed
job3:
stage: deploy
script:
- deploy_to_staging
when
when用于当前一阶段任务故障或者忽略故障的job任务,主要用于清理发生故障时的后续措施。
可选项:
-
on_success
- 默认参数,前一阶段任务成功时才执行 -
on_failure
- 前一阶段任务故障时才执行 -
always
- 无论前一阶段任务是否成功都执行 -
manual
- 手动设置,比较复杂,略过。
stages:
- build
- cleanup_build
- test
- deploy
- cleanup
build_job:
stage: build
script:
- make build
cleanup_build_job:
stage: cleanup_build
script:
- cleanup build when failed
when: on_failure
test_job:
stage: test
script:
- make test
deploy_job:
stage: deploy
script:
- make deploy
when: manual
cleanup_job:
stage: cleanup
script:
- cleanup after jobs
when: always
上面的例子当build任务失败时才会执行cleanup_build任务;无论之前的任务是否成功,最后都会执行clean_up的任务;当执行到deploy任务时,会触发手动设置。
artifacts
artifacts指任务成功后可供下载的附件,可在pipeline-CI中下载
-
artifacts:paths
- 该路径下的文件作为附件,只可指定仓库内的路径 -
artifacts:name
- 下载附件时的名称,可利用内置变量作为附件的名字 -
artifacts:when
- 指定当job成功或失败时才会上传附件 -
artifacts:expire_in
- 指定附件上载后保存的时间,默认永久在Gitlab保存 -
artifacts:untracked
- 指定上传Git未跟踪的文件
job:
artifacts:
name: "$CI_JOB_NAME-$CI_COMMIT_REF_NAME"
paths:
- binaries/
when: on_failure
expire_in: 1 week
untracked: true
上面的例子会在任务失败时上载binaries/路径下未被跟踪的文件,附件以job-ref为名字,保留一周的时间。
parallel
同时允许运行的job个数
test:
script: rspec
parallel: 5
include
把其他文件中的内容包含进来,类似于Makefile中的include
include:
- project: 'my-group/my-project'
ref: master
file: '/templates/.gitlab-ci-template.yml'
- project: 'my-group/my-project'
ref: v1.0.0
file: '/templates/.gitlab-ci-template.yml'
- project: 'my-group/my-project'
ref: 787123b47f14b552955ca2786bc9542ae66fee5b # Git SHA
file: '/templates/.gitlab-ci-template.yml'
include:
- remote: 'https://gitlab.com/awesome-project/raw/master/.gitlab-ci-template.yml'
variables
用于定义全局或私有变量,同时内置了一些内置变量,如CI_COMMIT_REF_NAME表示构建任务的分支或tag,点此查看更多内置变量
variables:
DATABASE_URL: "postgres://postgres@postgres/my_database"
Special YAML features
&定义调用的方式,.代表注释掉该job, aliases (*) 、map merging (<<),用于调用重复的内容
.deploy: &deploy_template
stage: deploy
tags:
- bambnitest
only:
- tags
- triggers
- /^ci-deploy/
allow_failure: true
before_script:
- ls -alh "bin"
script:
- rsync -luvr bin $HOST_IP:/work
job128:
<<: *deploy_template
variables:
HOST_IP: "*****.128.2"
job129:
<<: *deploy_template
variables:
HOST_IP: "******.129.2"
Skipping jobs
如果提交信息有[ci skip] 或者[skip ci]会执行提交,但是会跳过pipeline
git push -o ci.skip