I have a job in Jenkins and want the groovy script for the same? Is there a way I can do that?
I have created a Job using Jenkins, like add shell Command, Sync from repo,etc. Now I wish to have groovy script for the same, but I dont want to go to the trouble of writing the entire thing again. Is there something like Export to .groovy?
P.S. I am not sure of the correct tags.
You want to copy your configuration using Groovy script to create a new job or to persist.
Below Links are helpful for clone/ copy and create jobs using groovy script.
http://jenkins-ci.361315.n4.nabble.com/How-to-Copy-Clone-a-Job-via-Groovy-td4097412.html
Can I use Jenkins CLI or some groovy scripts to create a new job
https://wiki.jenkins-ci.org/display/JENKINS/Clone+all+projects+in+a+View
In case you want to persist your Job, always backup your resources file such as config.xml, jenkins.xml,etc..
you can recreate job from config.xml which holds all your job configuration
Check out this plugin. It seems to be appropriate for your purpose. Though it has some restrictions for plugins in your jobs that are not capable of Pipeline syntax. Anyway, it could be useful for code generation.
Related
Is there a way to have a shared script repo/library in Jenkins?
For example, there are building steps that run scripts I wrote. Instead of copying these script to each repo.. it would be nice to have a way to get them through one central place.
The only thing I found was:
https://jenkins.io/doc/book/pipeline/shared-libraries/
but its for pipelines which isn't an option for me.
What workaround do I have?
We use Managed Scripts plugin in order to share scripts between jobs.
After installing the "Managed Scripts" plugin, you have a new option to create a managed script. These scripts can be reused in build steps in every job. Within the job, a user is able to select the required script from a drop-down menu.
Is there a way to configure the JaCoCo Jenkins Plugin coverage threshold through a shell script or API? For ex: I want to make an app to change code coverage threshold values for my Jenkins Jobs. How would I do it if I want my Jenkins instance abstracted?
Okay, turns out its a bit simple really. Plugin configurations are stored in an XML file. Global configurations in .jenkins root folder and job specific configurations in $HOME/.jenkins/jobs/{JOB_NAME}/config.xml.
Modify the config.xml file to store new configurations. This configuration file is exposed by each job at http://<SERVER>:<PORT>/jenkins/job/<JOB NAME>/config.xml. Since Jenkins loads this data at first load, you need to execute 'Reload Configuration From Disk' in Global configuration.
Since we're updating the XML from an API, you need to tell jenkins to reload configuration from an API as well. To do that, execute a shell to use jenkins_cli.jar's reload-configuration command.
Reference : Does anyone know how to reload hudson configuration without restarting?
I'm searching for a way to execute automatically a global configured script BEFORE a Jenkins job will be started.
My use case is, all Jenkins jobs are only allowed to start if a specific environment variable is set.
If a variable is not set, the build should be aborted.
I found the Global Post Plugin https://wiki.jenkins.io/display/JENKINS/Global+Post+Script+Plugin, i only need the oposite what this Plugin does.
Maybe there's another solution?
I needed to chmod my /data/jenkins/.npm and /data/jenkins/.sbt directories before running all my builds.
I could either add a prebuild step to every job (redundant and messy) or I could go under Manage Jenkins -> Configure System.
We have a Cloud -> Amazon EC2 configuration section with "Init script" - you can add what you want to run there on slave startup.
However, if you really want something to run something for every job (not enough to run on jenkins slave startup) then you probably don't want to manually configure it for each job.
I suggest you look into Jenkins DSL as you can define preBuildSteps section on any/all job(s) which can then reference a common snippet (eg. a shell script to run).
Partial Solution:
Take a look at the Global Pre Script plugin. This plugin is less feature-rich than the Global Post Script plugin, but it should do at least a part of what you want. It notably lacks the option to abort the build, but it is able to manipulate parameters or other preconditions that your jobs rely on. You may also be able to submit a PR to add some means of preventing the build from executing.
Some options:
Modify Global Pre Script to be able to cleanly abort the build from groovy.
Change your existing jobs to check for a precondition (manually or via script). This not the most scalable option.
Replace your existing jobs with Pipeline jobs and use Shared Libraries to bottleneck the logic. (This is what I do).
Generate your jobs using the Job DSL Plugin and enforce a pre build step in every generated job. (This is what I also do)
Limitations:
Something to keep in mind for both global plugins: neither plugin provides a proper build step. The groovy code executes on the master.
One use case that neither plugin will handle is a between-job slave cleanup/sanity check.
I'm creating a jenkins pipeline. We have a bash script wich need to be executed but which is not in the repository itself.
How do I have to execute this script? I tried:
configFileProvider: use the configFileProvider to get the script in a variable. The execution did not work and I'm also thinking this is not the way to do it? This is meant for config files and not real scripts?
I have a shared library which contains resources/. From here I've copied the script and executed it with sh after copying the content in a file.. This went well but I have the script in my workspace which I do not prefer. I want to execute commands on my workspace but when I perform git commit's etc. I don't want the file to be in my workspace if that's possible.
What is the right way to execute a managed script (from managed scripts or from in git) in my jenkins pipeline?
Without pipelines I use: Managed scripts. When I execute it I see in the logs:
executing script 'test-xxx.sh'
[test-xxx] $ /bin/bash /tmp/build_step_template3284004xxx.sh param1 param2 param3
This is the ideal solution I want to replicate in Jenkins pipelines.
My script which is NOT in my workspace but is executed on my workspace and is temporary.
I used to use the Scriptler plugin, however it had security issues raised against it.
When I moved all my stuff from freestyle builds to pipelines (expressed in Groovy) in 2017/8 I migrated that functionality to Shared Libraries (as an aside: right place to put code that runs against the Jenkins object model).
All paths in a Jenkins job (freestyle or pipeline) are %JENKINS_WORKSPACE% relative. Jenkins does not natively like you going above this directory on the filesystem.
I would highly recommend all the stuff your build process needs be in the primary Jenkins workspace (preferably via a git checkout or a shared library). Versioning everything in git will always be your friend. If this is not what you want to do, other options could be:
Shared Workspace
This post
does anyone know if its possible to add a Jenkins pipeline build into a Jenkins docker image? For example, I may have a Jenkinsfile that defines my pipeline in groovie, and would like to ADD that into my image when building from the Jenkins image.
something like:
FROM jenkins:latest
ADD ./jobs/Jenkinsfile-pipeline-example $JENKINS_HOME/${someplace}
And have that pipeline ready to go when i run it.
Thanks.
It's a lot cleaner to use Jenkinsfile for this instead. This way, as your repositories develop you can change the build process without needing to recompile and redeploy your Jenkins instance everytime. (less work, and less CI downtime) Also, having the Jenkinsfile in source code allows a simpler decoupling.
If you have any questions about extending Jenkins on Docker further to handle building NodeJS, Ruby or something else I go into how to do all that in an article.
You can create any job in Jenkins by passing in an XML file that describes the job. See https://support.cloudbees.com/hc/en-us/articles/220857567-How-to-create-a-job-using-the-REST-API-and-cURL
The way I've done this is to manually create the job I want in Jenkins, then append config.xml to the URL and it shows you the XML content needed to generate the pipeline job. Save that XML and you can deliver it to your newly deployed Jenkins instance.
I use a system similar to this to generate several hundred jobs based on our external build specifications.