Details
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Bug
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Status: Closed (View Workflow)
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Critical
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Resolution: Fixed
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Jenkins version 2.46.2
Pipeline: Multibranch version 2.14
Description
I would like to execute 2 stages on 2 different nodes. First stage should be executed always, and the second under a certain condition.
Everything works, except that when the second stage is not executed (the 'when' expression is not satisfied), a checkout of the repository is still done.
This is the Jenkinsfile:
pipeline {
agent { label 'node_1' }
stages {
stage("Stage 1") {
steps {
script {
echo "Stage 1"
}
}
}
stage ('Stage 2') {
when {
expression { env.BRANCH_NAME == "master" }
}
agent { label 'node_2' }
steps {
script {
echo "Stage 2"
}
}
}
}
}
The big problem with this is that in case the 'node_2' is executing other jobs, the current job cannot continue until this node has a free executor.
Attachments
Activity
But it works:
pipeline {
agent { label 'node_1' }
stages {
stage("Stage 1") {
steps {
script {
echo "Stage 1"
}
}
}
stage ('Stage 2') {
when {
expression { env.BRANCH_NAME == "master" }
}
steps {
node ('node_2') {
script {
echo "Stage 2"
}
}
}
}
}
}
The problem in interpreting the scenario in the basic pipeline implementation.
Lucian Varlan
added a comment - Your example doesn't work. 'node' (or even 'agent') is not a valid step.
Lucian Varlan
added a comment - Your example doesn't work. 'node' (or even 'agent') is not a valid step. A solution to this was added in Declarative 1.2.6 - the beforeAgent true option to put inside when. If given, the when will be evaluated before entering the agent for the stage.
Found this problem also. Definitely annoying. Have ECS cluster agents...have to wait for one to spin up just to decide not to run.