I have a rather large project and I'm tasked with converting current Jenkins jobs from DSL Groovy scripts into Jenkins files. Is this done manually or can I automate to some level? I did find some decent info on the Jenkins doc site but this is a mid-stream task so trying to find someone who has been through this before.
https://jenkins.io/doc/book/pipeline/jenkinsfile/
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I've just started playing around with Jenkins - and I'm looking at Pipelines.
I'm looking to brush-up on my Groovy skills to facilitate this.
The latest literature is all "Groovy 3" based and comes with some significant new features, but despite having the latest Jenkins install (Jenkins 2.249.2), the embedded scripting engine seems to be older - from Jenkins' script console on my master:
println GroovySystem.version
Gives 2.4.12.
My question - Is the version of Groovy easily/sensibly configurable in Jenkins or is it usual to stick with whatever ships with Jenkins?
You must choose system groovy if you want ready access to the Jenkins internals, jobs, etc. See Groovy Script vs System Groovy Script, and Known limitations; you get what is packaged.
If you use external groovy and don't need to access Jenkins internals, your choice. Lots of internal debate on upgrading as it's lots of work. You can follow JENKINS-51823 and Pipeline Groovy Epic
I need Jenkins DSL for purpose of code versioning.
I have seen that there is plugin which allows to convert jobs from groovy code to UI.
Since I have all jobs written in Jenkins UI I am wondering if there is some way to do it the other so that I will get groovy scripts from Jenkins UI jobs?
There is a plugin XML Job to Job DSL.
Each Jenkins UI job has config.xml in the file system. I have not used the plugin myself as I have converted Jenkins jobs to script manually.
I'm very new to Jenkins pipeline and trying to write some Groovy scripts in pipeline. Now, I'm using declarative pipeline and writing Groovy code in Jenkins UI itself which is not helping with auto-population of methods on objects, auto-import etc.
Generally when we use IDE like eclipse, Intellij Idea for Java programming, we can see respective imports are automatically added in the code and also autosuggestion is supported.
How can I groovy code effectively for Jenkins pipeline which would save my time and help with autom-suggestion of methods, imports, compilation error etc?
I have achieved auto-import, auto-completion (and somewhat unit-testing) in IntelliJ using this setup.
The caveat is that I'm using scripted pipeline and the setup is also used for Groovy scripts for Jenkins hooks and Jenkins shared library.
My Jenkins Box contains hundreds of jobs and i want them to convert into DSL code is their predefined plugins or softwares to convert the existing jenkins job.
Any suggestions on these.
Thanks....
You could try this (currently active) project with quite a good coverage:
https://plugins.jenkins.io/xml-job-to-job-dsl/ aka https://github.com/jenkinsci/xml-job-to-job-dsl-plugin/.
There isn't any plugins or utility available to automatically generate Job DSL Code from Jenkins jobs
There is a project for converting config XML to Job DSL scripts, but I do not know how useful it is:
https://github.com/visualphoenix/jenkins-xml-to-jobdsl
I have tons of existing Freestyle Jenkins jobs in my old Jenkins Instance and now I would like to migrate them to New Jenkins 2.0 pipeline jobs using a Jenkins file.
I am following this page to create a Jenkins file: https://jenkins.io/doc/book/pipeline/jenkinsfile/
Can someone please suggest me if there is any easy way (or) plugin i can use to convert these existing job's to pipeline view.
I haven't tried the plugin but while searching for same i came across this post:
https://jenkins.io/blog/2017/12/15/auto-convert-freestyle-jenkins-jobs-to-coded-pipeline/
Maybe this can help. Will update more after actually giving it a ago. You can go through and try by yourself as well.
don't think there is an automatic tool to convert jobs.
We created all new jobs with Jenkins DSL plugin
for the Jenkinsfile - we created some good examples of our basic flows and each team convert the relevant jobs.