I am using the groovy below to call a bat command, that no matter how i reference the LOCAL_WORKSPACE within the bat command it does not evaluate it.
What am i missing?
Error
nuget restore $env.LOCAL_WORKSPACE
"Input file does not exist: $env.LOCAL_WORKSPACE"
Script
pipeline {
agent any
stages {
stage('Clone repo') {
steps {
deleteDir()
git branch: 'myBranch', changelog: false, credentialsId: 'myCreds', poll: false, url: 'http://myRepoURL'
}
}
stage ("Set any variables") {
steps{
script{
LOCAL_BUILD_PATH = "$env.WORKSPACE"
}
}
}
stage('Build It, yes we can') {
parallel {
stage("Build one") {
steps {
echo LOCAL_BUILD_PATH
bat 'nuget restore %LOCAL_WORKSPACE%'
}
}
}
}
}
}
You cannot set variables to share data between stages. Basically each script has its own namespace.
What you can do is use an environment directive as described in the pipeline syntax docs. Those constants are globally available, but they are constants, so you cannot change them in any stage.
You can calculate the values though. For example I use an sh step to get the current number of commits on master like this:
pipeline {
agent any
environment {
COMMITS_ON_MASTER = sh(script: "git rev-list HEAD --count", returnStdout: true).trim()
}
stages {
stage("Print commits") {
steps {
echo "There are ${env.COMMITS_ON_MASTER} commits on master"
}
}
}
}
You can use environment variables to store and access to/from stages. For example, if you define LOCAL_ENVR as Jenkins parameter, you can manipulate the variable from stages:
stage('Stage1') {
steps {
script{
env.LOCAL_ENVR = '2'
}
}
}
stage('Stage2') {
steps {
echo "${env.LOCAL_ENVR}"
}
}
Related
I'm trying to create a Jenkinsfile that runs a release build step only if a boolean parameter isRelease is true, otherwise skip this step.
My Jenkinsfile looks like this (extract):
pipeline {
agent { label 'build' }
tools {
jdk 'OpenJDK 11'
}
parameters {
booleanParam( name: 'isRelease', description: 'Run a release build?', defaultValue: false)
}
stages {
stage('Build') {
steps {
sh 'mvn clean compile'
}
}
stage('Test') {
steps {
sh 'mvn test'
}
}
stage('Release') {
when {
beforeAgent true
expression { return isRelease }
}
steps {
sh 'echo "######### Seems to a release!"'
}
}
}
}
However, I don't seem to understand how to use the parameters variable properly. What happens is that the release step is always executed.
I changed expression { return isRelease } to expression { return "${params.isRelease}" } which did not make a difference. Changing it to expression { return ${params.isRelease} } causes the step to fail with java.lang.NoSuchMethodError: No such DSL method '$' found among steps.
What's the right way to use a parameter to skip a step?
You were closest on your first attempt. The latter two failed because:
Converting a Boolean to a String would always return truthiness because a non-empty String is truthy.
That is invalid Jenkins Pipeline or Groovy syntax.
The issue here with the first attempt is that you need to access isRelease from within the params object.
when {
beforeAgent true
expression { params.isRelease }
}
The when directive documentation actually has a very similar example in the expression subsection for reference.
I've linked up to the 'github webhook' now.
Now all we have to do is build and deploy to 'ec2'.
Is it a place to create and test files to be uploaded to ec2 in the build phase? If yes, I wonder what the code would look like.
And I wonder how to utilize dir in build .
I'm curious about the code how to write it in the deployment stage
Below is the code I have written so far
pipeline {
agent any
environment {
SLACK_CHANNEL = '#'
}
stages {
stage('Start') {
steps {
slackSend (channel: SLACK_CHANNEL, color: '#FFFFOO', message: "STARTED: Job '${env.JOB_NAME} [${env.BUILD_NUMBER}]' (${env.BUILD_URL})")
}
}
stage('Checkout') {
steps {
git branch: 'feature/signin.up',
credentialsId: 'github_access_token',
url: 'https://github.com/###/westudy.git'
}
}
stage('Build') {
steps {
{
}
}
}
stage('Deploy') {
steps {
}
}
I want to send few parameters to one of my shell scripts written in linux server from a jenkins job. Below is my jenkins pipeline job:
def MY_VAR
def BUILD_NUMBER
pipeline {
agent any
stages {
stage('Stage One') {
steps {
script {
BUILD_NUMBER={currentBuild.number}
MY_VAR ='abc'
}
}
}
stage('Stage Two') {
steps {
sh '''
cd /scripts/
./my_scripts.sh $BUILD_NUMBER $MY_VAR'''
}
}
}
}
Here I am able to send the value of BUILD_NUMBER but not of MY_VAR. It seems to me that since MY_VAR is set into pipeline that is why it is happening. Can anybody please help with the solution
If you want to interpolate $MY_VAR when executing sh step, you need to replace single quotes with the double-quotes.
def MY_VAR
def BUILD_NUMBER
pipeline {
agent any
stages {
stage('Stage One') {
steps {
script {
BUILD_NUMBER={currentBuild.number}
MY_VAR ='abc'
}
}
}
stage('Stage Two') {
steps {
sh """
cd /scripts/
./my_scripts.sh $BUILD_NUMBER $MY_VAR"""
}
}
}
}
The $BUILD_NUMBER worked, because pipeline exposes env.BUILD_NUMBER and this variable can be accessed inside the shell step as bash's $BUILD_NUMBER env variable. Alternatively, you could set MY_VAR as an environment variable and keep single quotes in the sh step. Something like this should do the trick:
pipeline {
agent any
stages {
stage('Stage One') {
steps {
script {
//you can remove BUILD_NUMBER assignment - env.BUILD_NUMBER is already created.
//BUILD_NUMBER={currentBuild.number}
env.MY_VAR ='abc'
}
}
}
stage('Stage Two') {
steps {
sh '''
cd /scripts/
./my_scripts.sh $BUILD_NUMBER $MY_VAR'''
}
}
}
}
You can learn more about Jenkins Pipeline environment variables from one of my blog posts.
I'm setting up Jenkins pipeline which is mentioned below. My build gets aborted if the 1st stage is got failed but I want to execute 1st all stage and steps which are mentioned in stages.
pipeline {
agent none
stages {
stage("build and test the project") {
agent {
docker "coolhub/vault:jenkins"
}
stages {
stage("build") {
steps {
sh 'echo "build.sh"'
}
}
stage("test") {
steps {
sh 'echo "test.sh" '
}
}
}
}
}
}
I'd like to execute 1st all stage and steps which are mentioned in stages.
after all, stage gets executed then finally need to get abort Jenkins job and show stage and steps which are failed.
Yeah, well there's no way currently to do that apart from try catch blocks in a script.
More here: Ignore failure in pipeline build step.
stage('someStage') {
steps {
script {
try {
build job: 'system-check-flow'
} catch (err) {
echo err
}
}
echo currentBuild.result
}
}
In hakamairi's answer, the stage is not marked as failed. It is now possible to fail a stage, continue the execution of the pipeline and choose the result of the build:
pipeline {
agent any
stages {
stage('1') {
steps {
sh 'exit 0'
}
}
stage('2') {
steps {
catchError(buildResult: 'SUCCESS', stageResult: 'FAILURE') {
sh "exit 1"
}
}
}
stage('3') {
steps {
sh 'exit 0'
}
}
}
}
In the example above, all stages will execute, the pipeline will be successful, but stage 2 will show as failed:
As you might have guessed, you can freely choose the buildResult and stageResult, in case you want it to be unstable or anything else. You can even fail the build and continue the execution of the pipeline.
Just make sure your Jenkins is up to date, since this is a fairly new feature.
I am trying to run a bash script after a successful build in jenkins.
stages {
stage("test") {
steps {
...
}
post {
success {
steps {
sh "./myscript"
}
}
}
}
}
I am getting an error saying that method "steps" does not exist. How can I run a script after a successful build?
You need to remove the ”steps” inside the ”success” block. call the script directly inside the ”success” block.
according to the docs which is quite confusing, the ”success” is a container for steps (so no need to add another nested ”steps” ):
https://jenkins.io/doc/book/pipeline/syntax/#post
stages {
stage("test") {
steps {
...
}
post {
success {
sh "./myscript"
}
}
}
}