Jenkins parallel declarative pipeline - jenkins

Question

I'm trying to define a parallel section in my declarative jenkins pipeline.
I'm basing the syntax of this: https://jenkins.io/blog/2017/09/25/declarative-1/
But I get this error:
WorkflowScript: 74: Expected one of "steps", "stages", or "parallel" for stage "app cores" # line 74, column 3.
stage('bat cores') {
^
I've tried moving the parallel block around, but then I get other errors. As far as I can see I match the blog post above.
Any ideas?
Versions:
Jenkins ver. 2.138.1
Pipeline: Declarative version 1.3.2
My full pipeline looks like this:
pipeline {
agent { label 'master' }
options {
ansiColor('xterm')
}
parameters {
choice(name: 'STOP_ON_FIRST_FAILURE', choices: ['true', 'false'], description: '....')
choice(name: 'RUN_MODE', choices: [
'plan, confirm, apply',
'plan, confirm, apply, then destroy',
'destroy'],
description: "Choose to destroy resources at end" )
string(name: 'GIT_REPO_BRANCH', defaultValue: 'production', description: '...')
}
stages {
stage('thing container') {
steps {
build job: '/DevWork/DT/production branch/FA1/FA1 thing Creation', propagate: params.STOP_ON_FIRST_FAILURE
}
}
stage('bat cores') {
steps {
build(
job: '/DevWork/DT/production branch/FA1/FA1 thing Creation',
propagate: params.STOP_ON_FIRST_FAILURE,
parameters: [
[$class: 'StringParameterValue', name: 'RUN_MODE', value: params.RUN_MODE],
[$class: 'StringParameterValue', name: 'GIT_REPO_BRANCH', value: params.GIT_REPO_BRANCH],
]
)
build(
job: '/DevWork/DT/production branch/FA1/FA103/FA103 bat Core',
propagate: params.STOP_ON_FIRST_FAILURE,
parameters: [
[$class: 'StringParameterValue', name: 'RUN_MODE', value: params.RUN_MODE],
[$class: 'StringParameterValue', name: 'GIT_REPO_BRANCH', value: params.GIT_REPO_BRANCH],
]
)
build(
job: '/DevWork/DT/production branch/FA1/FA104/FA104 bat Core',
propagate: params.STOP_ON_FIRST_FAILURE,
parameters: [
[$class: 'StringParameterValue', name: 'RUN_MODE', value: params.RUN_MODE],
[$class: 'StringParameterValue', name: 'GIT_REPO_BRANCH', value: params.GIT_REPO_BRANCH],
]
)
build(
job: '/DevWork/DT/production branch/FA1/FA101/FA101 bat Core',
propagate: params.STOP_ON_FIRST_FAILURE,
parameters: [
[$class: 'StringParameterValue', name: 'RUN_MODE', value: params.RUN_MODE],
[$class: 'StringParameterValue', name: 'GIT_REPO_BRANCH', value: params.GIT_REPO_BRANCH],
]
)
build(
job: '/DevWork/DT/production branch/FA1/FA102/FA102 bat Core',
propagate: params.STOP_ON_FIRST_FAILURE,
parameters: [
[$class: 'StringParameterValue', name: 'RUN_MODE', value: params.RUN_MODE],
[$class: 'StringParameterValue', name: 'GIT_REPO_BRANCH', value: params.GIT_REPO_BRANCH],
]
)
}
}
stage('app cores') {
steps {
parallel {
stage('FA10302 Application Core') {
steps {
build(
job: '/DevWork/DT/production branch/FA1/FA103/FA10302 Application Core',
propagate: params.STOP_ON_FIRST_FAILURE,
parameters: [
[$class: 'StringParameterValue', name: 'RUN_MODE', value: params.RUN_MODE],
[$class: 'StringParameterValue', name: 'GIT_REPO_BRANCH', value: params.GIT_REPO_BRANCH],
]
)
}
}
stage('FA10301 Application Core') {
steps {
build(
job: '/DevWork/DT/production branch/FA1/FA103/FA10301 Application Core',
propagate: params.STOP_ON_FIRST_FAILURE,
parameters: [
[$class: 'StringParameterValue', name: 'RUN_MODE', value: params.RUN_MODE],
[$class: 'StringParameterValue', name: 'GIT_REPO_BRANCH', value: params.GIT_REPO_BRANCH],
]
)
}
}
stage('FA10101 Application Core') {
steps {
build(
job: '/DevWork/DT/production branch/FA1/FA101/FA10101 Application Core',
propagate: params.STOP_ON_FIRST_FAILURE,
parameters: [
[$class: 'StringParameterValue', name: 'RUN_MODE', value: params.RUN_MODE],
[$class: 'StringParameterValue', name: 'GIT_REPO_BRANCH', value: params.GIT_REPO_BRANCH],
]
)
}
}
}
}
}
}
}

Answer 1

You made the mistake to use the "negative" example of the development blog:
In earlier versions of Declarative Pipeline, the only way to run
chunks of Pipeline code in parallel was to use the parallel step
inside the steps block for a stage, like this: YOUR EXAMPLE
While this works, it doesn’t integrate well with the rest of the
Declarative Pipeline syntax.
I think your issue is located here:
stage('app cores') {
steps { // This step{} is causing the issue, remove it
The "real" syntax is labeled like the following in the development blog:
But now with Declarative Pipeline 1.2, we’ve introduced a true
Declarative syntax for running stages in parallel:
This would look like the following (simply remove your steps{} from above):
stage('app cores')
{
parallel {
stage('FA10302 Application Core') {
steps {
build(
job: '/DevWork/DT/production branch/FA1/FA103/FA10302 Application Core',
propagate: params.STOP_ON_FIRST_FAILURE,
parameters: [
[$class: 'StringParameterValue', name: 'RUN_MODE', value: params.RUN_MODE],
[$class: 'StringParameterValue', name: 'GIT_REPO_BRANCH', value: params.GIT_REPO_BRANCH],
]
)
}
}
stage('FA10301 Application Core') {
steps {
build(
job: '/DevWork/DT/production branch/FA1/FA103/FA10301 Application Core',
propagate: params.STOP_ON_FIRST_FAILURE,
parameters: [
[$class: 'StringParameterValue', name: 'RUN_MODE', value: params.RUN_MODE],
[$class: 'StringParameterValue', name: 'GIT_REPO_BRANCH', value: params.GIT_REPO_BRANCH],
]
)
}
}
stage('FA10101 Application Core') {
steps {
build(
job: '/DevWork/DT/production branch/FA1/FA101/FA10101 Application Core',
propagate: params.STOP_ON_FIRST_FAILURE,
parameters: [
[$class: 'StringParameterValue', name: 'RUN_MODE', value: params.RUN_MODE],
[$class: 'StringParameterValue', name: 'GIT_REPO_BRANCH', value: params.GIT_REPO_BRANCH],
]
)
}
}
} // close the stage 'app cores'

Answer 2

It might sounds stupid, but as I've found out today, also typo in the word parallel can throw this exception.