Pipeline由多个步骤组成，允许您构建，测试和部署应用程序。Jenkins
Pipeline允许您以简单的方式组合多个步骤，可以帮助您建模任何类型的自动化过程。
想像一个“一步一步”，就像执行单一动作的单一命令一样。当一个步骤成功时，它移动到下一步。当步骤无法正确执行时，Pipeline将失败。
当Pipeline中的所有步骤成功完成后，Pipeline被认为已成功执行。
Linux，BSD和Mac OS
在Linux，BSD和Mac OS（类Unix）系统上，该sh步骤用于在Pipeline中执行shell命令。
| Jenkinsfile
(Declarative Pipeline)
pipeline {
agent any
stages {
stage('Build') {
steps {
sh 'echo "Hello World"'
sh '''
echo "Multiline shell steps works too"
ls -lah
'''
}
}
}
} |
Toggle Scripted Pipeline (Advanced)
| Jenkinsfile
(Scripted Pipeline)
node {
stage('Build') {
sh 'echo "Hello World"'
sh '''
echo "Multiline shell steps works too"
ls -lah
'''
}
} |
Windows
基于Windows的系统应该使用bat执行批处理命令的步骤。
| Jenkinsfile
(Declarative Pipeline)
pipeline {
agent any
stages {
stage('Deploy') {
steps {
retry(3) {
sh './flakey-deploy.sh'
}
timeout(time: 3, unit: 'MINUTES') {
sh './health-check.sh'
}
}
}
}
} |
Toggle Scripted Pipeline (Advanced)
| Jenkinsfile
(Scripted Pipeline)
node {
stage('Build') {
bat 'set'
}
} |
超时，重试等等
有一些强大的步骤，“包装”其他步骤，可以轻松地解决问题，如重试（retry）步骤，直到成功或退出，如果步骤太长（timeout）。
Jenkinsfile (Declarative Pipeline)
| Jenkinsfile
(Declarative Pipeline)
pipeline {
agent any
stages {
stage('Deploy') {
steps {
retry(3) {
sh './flakey-deploy.sh'
}
timeout(time: 3, unit: 'MINUTES') {
sh './health-check.sh'
}
}
}
}
} |
Toggle Scripted Pipeline (Advanced)
| Jenkinsfile
(Scripted Pipeline)
node {
stage('Deploy') {
retry(3) {
sh './flakey-deploy.sh'
}
timeout(time: 3, unit: 'MINUTES') {
sh './health-check.sh'
}
}
} |
“部署”阶段重试flakey-deploy.sh脚本3次，然后等待health-check.sh脚本执行最多3分钟。如果健康检查脚本在3分钟内未完成，则Pipeline将在“部署”阶段被标记为失败。
“包装”的步骤，例如timeout和retry可以包含其它步骤，包括timeout或retry。
我们可以组合这些步骤。例如，如果我们想重新部署我们的部署5次，但是在失败的阶段之前，总是不想花3分钟以上：
Jenkinsfile (Declarative Pipeline)
| Jenkinsfile
(Declarative Pipeline)
pipeline {
agent any
stages {
stage('Deploy') {
steps {
timeout(time: 3, unit: 'MINUTES') {
retry(5) {
sh './flakey-deploy.sh'
}
}
}
}
}
} |
Toggle Scripted Pipeline (Advanced)
| Jenkinsfile
(Scripted Pipeline)
node {
stage('Deploy') {
timeout(time: 3, unit: 'MINUTES') {
retry(5) {
sh './flakey-deploy.sh'
}
}
}
} |
完成
当Pipeline完成执行后，您可能需要运行清理步骤或根据Pipeline的结果执行某些操作。可以在本post节中执行这些操作。
Jenkinsfile (Declarative Pipeline)
| Jenkinsfile
(Declarative Pipeline)
pipeline {
agent any
stages {
stage('Test') {
steps {
sh 'echo "Fail!"; exit 1'
}
}
}
post {
always {
echo 'This will always run'
}
success {
echo 'This will run only if successful'
}
failure {
echo 'This will run only if failed'
}
unstable {
echo 'This will run only if the run was
marked as unstable'
}
changed {
echo 'This will run only if the state of
the Pipeline has changed'
echo 'For example, if the Pipeline was previously
failing but is now successful'
}
}
} |
Toggle Scripted Pipeline (Advanced)
| Jenkinsfile
(Scripted Pipeline)
node {
try {
stage('Test') {
sh 'echo "Fail!"; exit 1'
}
echo 'This will run only if successful'
} catch (e) {
echo 'This will run only if failed'
// Since we're catching the exception
in order to report on it,
// we need to re-throw it, to ensure that
the build is marked as failed
throw e
} finally {
def currentResult = currentBuild.result
?: 'SUCCESS'
if (currentResult == 'UNSTABLE') {
echo 'This will run only if the run was
marked as unstable'
}
def previousResult = currentBuild.previousBuild?.result
if (previousResult != null && previousResult
!= currentResult) {
echo 'This will run only if the state of
the Pipeline has changed'
echo 'For example, if the Pipeline was previously
failing but is now successful'
}
echo 'This will always run'
}
} |
|
