一、添加凭据
系统管理—>>manage credential—>>系统—>>添加凭据，如下：
二、创建gitlab项目
root@Think-pad:~/pipeline-helloworld-scm# vim Jenkinsfile
pipeline {
agent any
stages {
stage('hello') {
steps {
echo "hello world"
}
}
}
}
root@Think-pad:~/pipeline-helloworld-scm# git add .
root@Think-pad:~/pipeline-helloworld-scm# git commit -m "update the Jenkinsfile to pipeline format"
[master 7d4b04e] update the Jenkinsfile to pipeline format
1 file changed, 10 insertions(+), 1 deletion(-)
root@Think-pad:~/pipeline-helloworld-scm# git push -u origin
Username for 'http://192.168.1.12': root
Password for 'http://root@192.168.1.12':
Counting objects: 3, done.
Delta compression using up to 4 threads.
Compressing objects: 100% (2/2), done.
Writing objects: 100% (3/3), 343 bytes | 343.00 KiB/s, done.
Total 3 (delta 0), reused 0 (delta 0)
To http://192.168.1.12/root/pipeline-helloworld-scm.git
a16bbed..7d4b04e master -> master
Branch 'master' set up to track remote branch 'master' from 'origin'.
三、创建pipeline流水线
配置流水线，选择"scm",如下：
脚本路径默认为Jenkins
四、开始构建
