Jenkins how to create pipeline manual step - jenkins

Prior Jenkins2 I was using Build Pipeline Plugin to build and manually deploy application to server.
Old configuration:
That works great, but I want to use new Jenkins pipeline, generated from groovy script (Jenkinsfile), to create manual step.
So far I came up with input jenkins step.
Used jenkinsfile script:
node {
stage 'Checkout'
// Get some code from repository
stage 'Build'
// Run the build
}
stage 'deployment'
input 'Do you approve deployment?'
node {
//deploy things
}
But this waits for user input, noting that build is not completed. I could add timeout to input, but this won't allow me to pick/trigger a build and deploy it later on:
How can I achive same/similiar result for manual step/trigger with new jenkins-pipeline as prior with Build Pipeline Plugin?

This is a huge gap in the Jenkins Pipeline capabilities IMO. Definitely hard to provide due to the fact that a pipeline is a single job. One solution might be to "archive" the workspace as an "artifact" (tar and archive **/* as 'workspace.tar.gz'), and then have another pipeline copy the artifact and and untar it into the new workspace. This allows the second pipeline to pickup where the previous one left off. Of course there is no way to gauentee that the second pipeline cannot be executed out of turn or more than once. Which is too bad. The Delivery Pipeline Plugin really shines here. You execute a new pipeline right from the view - instead of the first job. Anyway - not much of an answer - but its the path I'm going to try.
EDIT: This plugin looks promising:
https://github.com/jenkinsci/external-workspace-manager-plugin/blob/master/doc/PIPELINE_EXAMPLES.md

Related

How to run a job from a Jenkins Pipeline on the same executor (declarative syntax)

I want to use the Jenkins "PRQA" plugin, which seems not to have the option to use it from a pipeline. The plugin would run static code analysis and publish the results.
In my case, it requires some preparations that are already done in a pipelinejob. Because of that, I want to include the job into that pipeline, but on the same executor with the data prepared by the pipeline as some kind of inlined job-step.
I have tried to create a job for the PRQA-Plugin-Step and execute this with the build step from the pipeline. But this tries to start the job on a new executor (and stalls because I have only one executor).
pipeline {
agent any
stages {
stage('Build') {
steps {
echo 'Prepare'
}
}
stage('SCA') {
steps {
//Run this without using a new executor with the Environment that exists now
build 'PRQA_Job'
}
}
}
}
What is the correct way to run the job on the same executor with the current working directory.
With specified build 'PRQA_Job' it's not possible to run second job on the same executor (1 job = 1 executor), since main job just waiting for a triggered job to be finished. But you can run another job on the same agent with more than 1 executor to reach workspace from main job.
For a test porpose specify agent name in both jobs: agent 'agent_name_here'
If you want to use plugin functionality for a plugin, which has no native pipeline support, you could try using "step: General Build step" feature for Jenkins Pipelines. You can use the Pipeline Syntax wizzard linked in the Job configuration windows to generate the needed Pipeline description.
If the plugin does not show up in the "step: General Build step" part of Jenkins you can use a separate Job. To copy all the needed files/Data into this second Job you will require to use Archive Artifact/Copy Artifact functionality of Jenkins to save files from your Pipeline build.
For more information on how to sue Archive Artifact/Copy Artifact see https://plugins.jenkins.io/copyartifact/ and
https://www.jenkins.io/doc/pipeline/tour/tests-and-artifacts/

Find artifacts in post-build actions

In a nutshell:
How can I access the location of the produced artifacts within a shell script started in a build or post-build action?
The longer story:
I'm trying to setup a jenkins job to automate the building and propagation of debian packages.
So far, I was already successfull in using the debian-pbuilder plugin to perform the build process, such that jenkins presents the final artifacts after successfully finishing the job:
mypackage_1+020200224114528.NOREV.4_all.deb
mypackage_1+020200224114528.NOREV.4_amd64.buildinfo
mypackage_1+020200224114528.NOREV.4_amd64.changes
mypackage_1+020200224114528.NOREV.4.dsc
mypackage_1+020200224114528.NOREV.4.tar.xz
Now I would like to also automate the deployment process into the local reprepro repository, which would actually just require a simple shell script invocation, I've put together.
My problem: I find no way to determine the artifact location for that deployment script to operate on. The "debian-pbuilder" plugin generates the artifacts in a temporary directory ($WORKSPACE/binaries.tmp15567690749093469649), which changes with every build.
Since the artifacts are listed properly in the finished job status view, I would expect that the artifact details are provided to the script (e.g. by environment variables). But that is obvously not the case.
I've already search extensively for a solution, but didn't find anything helpful.
Or is it me (still somewhat a Rookie in Jenkins), following a wron approach here?
You can use archiveArtifacts. You have binaries.tmp directory in the Workspace and you can use it, but before execute clear workspace using deleteDir().
Pipeline example:
pipeline {
agent any
stages {
stage('Build') {
steps {
deleteDir()
...
}
}
}
post {
always {
archiveArtifacts artifacts: 'binaries*/**', fingerprint: true
}
}
}
You can also check https://plugins.jenkins.io/copyartifact/

Notifications on jenkins job failures - with pipeline from scm

We have several jenkins pipeline jobs setup as "pipeline from scm" that checkout a jenkins file from github and runs it. There is sufficient try/catch based error handling inside the jenkinsfile to trap error conditions and notify the right channels.This blog post goes into a quite a bit of depth about how to achieve this.
However, if there is issue fetching the jenkinsfile in the first place, the job fails silently. How does one generate notifications from general job launch failures before the pipeline is even started?
Jenkins SCM pipeline doesn't have any execution provision similar to catch/finally that will be called if Jenkinsfile load is failed, And I don't think there will be any in future.
However there is this global-post-script which runs groovy script after every build of every job on Jenkins. You have to place that script in $JENKINS_HOME/global-post-script/ directory.
Using this you can send notifications or email to admins based on project that failed and/or reason/exceptions of failure.
Sample code that you can put in script
if ("$BUILD_RESULT" != 'SUCCESS') {
def job = hudson.model.Hudson.instance.getItem("$JOB_NAME")
def build = job.getBuild("$BUILD_NUMBER")
def exceptionsToHandle = ["java.io.FileNotFoundException","hudson.plugins.git.GitException"]
def foundExection = build
.getLog()
.split('\n')
.toList()
.stream()
.filter{ line ->
!line.trim().isEmpty() && !exceptionsToHandle.stream().filter{ex -> line.contains(ex)}.collect().isEmpty()
}
.collect()
.size() > 0;
println "do something with '$foundExection'"
}
You can validate your Jenkinsfile before pushing it to repository.
Command-line Pipeline Linter
There are some IDE Integrations as well
Apparently this is an open issue with Jenkins: https://issues.jenkins.io/browse/JENKINS-57946
I have decided not to use Yogesh answer mentioned earlier. For me it is simpler to just copy the content of the Jenkinsfile directly into the Jenkins project instead of pointing Jenkins to the GIT location of the Jenkinsfile. However, in addition I keep the Jenkinsfile in GIT. But make sure to keep the GIT and the Jenkins version identical.

Jenkins Pipeline and jboss deploy

I'm currently using Jenkins FreeStyle Project in my project,trying to migrate to Jenkins Pipeline, but I'm facing some issues:
1) I need to commit jenkinsfile in my project, but my deploy phase is just copy from target/project.war to jboss deployment folder, as shown below:
stage('Deploy') {
steps {
sh 'cp /var/lib/jenkins/workspace/project/project.war /opt/jboss/standalone/deployment/project.war'
}
}
The problem: currently the path is fixed and tomorrow if a change occurs and there is a need to deploy to another machine, An update should be made to the source code which should be avoided. In FreeStyle project i just update the JOB and everything works.
2) The project has 3 modules. The FreeStyle project was configured so that JOB A will call JOB B on finish. In pipeline how can this order be achieved:
- Start JOB A --> JOB B --> JOB C.
You can add the following into your script
1.Issue with copying:
Firstly, you avoid using the actual path(Location of file in workspace) to a
relative Path i.e. using project/*.war or **/*.war it will take it
from the workspace itself.
Second, Coming to the issue that you have
to change the target location like you said you have to change it
FreeStyle Project :) so you have to change it in the
JenkinsFile also :)
2.To call other jobs in your pipeline and the following
build job: 'Job2', parameters: [
new org.jvnet.jenkins.plugins.nodelabelparameter.NodeParameterValue
("TARGET_NODE", "description", nodeName)
]
If it does not have any parameter remove that section out.
There is something called Jenkins workflow which provides more power and control if your interested in it, you can look it up here https://dzone.com/refcardz/continuous-delivery-with-jenkins-workflow?chapter=1
you can use sshPulissher:send build artifacts over ssh
add this code in your jenkins pipeline
and configure your sshServer in manage jenkins
finally your war is transfert in your destination

Is it possible to run part of Job on master and the other part on slave?

I'm new to Jenkins. I have a requirement where I need to run part of a job on the Master node and the rest on a slave node.
I tried searching on forums but couldn't find anything related to that. Is it possible to do this?
If not, I'll have to break it into two separate jobs.
EDIT
Basically I have a job that checks out source code from svn, then compiles and builds jar files. After that it's building a wise installer for this application. I'd like to do source code checkout and compilation on the master(Linux) and delegate Wise Installer setup to a Windows slave.
It's definitely easier to do this with two separate jobs; you can make the master job trigger the slave job (or vice versa).
If you publish the files that need to be bundled into the installer as build artifacts from the master build, you can pull them onto the slave via a Jenkins URL and create the installer. Use the "Archive artifacts" post build step in the master build to do this.
The Pipeline Plugin allows you to write jobs that run on multiple slave nodes. You don't even have to go create other separate jobs in Jenkins -- just write another node statement in the Pipeline script and that block will just run on an assigned node. You can specify labels if you want to restrict the type of node it runs on.
For example, this Pipeline script will execute parts of it on two different nodes:
node('linux') {
git url: 'https://github.com/jglick/simple-maven-project-with-tests.git'
sh "make"
step([$class: 'ArtifactArchiver', artifacts: 'build/program', fingerprint: true])
}
node('windows && amd64') {
git url: 'https://github.com/jglick/simple-maven-project-with-tests.git'
sh "mytest.exe"
}
Some more information at the Pipeline plugin tutorial. (Note that it was previously called the Workflow Plugin.)
You can use the Multijob plugin which adds an the idea of a build phase which runs other jobs in parallel as a build step. You can still continue to use the regular freestyle job build and post build options as well

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