Jenkins manipulate build artifacts - jenkins

Is there a way/plugin to manipulate artifacts after build on Jenkins?
Basically, from the build result page, you can click on "MANIPULATE" link or button and execute a script/command.
Thank you.

One way you could accomplish this is:
Create a RESTful web service on the box running Jenkins. The endpoint would contain the logic/script that you want to execute. If you edit the artifact on the Jenkins master directly, it will get updated in the UI.
Add some simple HTML to the build description to call the RESTful end point you made in #1. For example, via a link target in a button or a tag. Note, you can also update the build description dynamically for each build using a plugin like Groovy Postbuild.
UPDATE
Note that if you don't want to create a web service running on the master, you can just invoke another job via the Jenkins remote access api that does the update for you using something like Groovy Postbuild Plugin. The Groovy postbuild step runs on the Jenkins master, so you technically have access to the entire filesystem as well as the Jenkins API.
For example, you would:
Create button that would start another job by hitting the url "http://myjenkinsurl/job/myjob/buildWithParameters?param1=test". Depending on your security, you might need to specify a token to kickoff jobs like this.
Inside that job write a groovy script to update the artifacts via Groovy Postbuild. For example, a small groovy script like
'copy C:\\Jenkins\\jobs\\myjob\\myartifact C:\\Backup'.execute(); could be used to backup the artifact somewhere else.

Related

Is there a way we can download archived artifacts in jenkins based on build name (Create a formatted version number)

We are setting up the job to generate executable file by gathering different components (All these tagged) , We need a way to get these components based on the name of the build, I know copy artifacts will do but i would like to put this on script, Is there way (Api or something else) can download archived artifacts? once all these components present it is easy to create a installer
I have tried there are multiple curl and wget commands which accept username and password , But I need something without username and password as script runs on jenkins workspace we dont need to pass the password
If you want to interact with Jenkins via scripts there are two ways:
1. Jenkinspipeline
With Jenkinspipelines you can define the builds with Groovy scripts whereby you can use copyArtifact via the Groovy DSL. Its not actually a script its a build definition defined with a Groovy DSL. This should be the way when a Jenkins Job is gathering stuff from other Jobs.
https://jenkins.io/doc/book/pipeline/
2. Jenkins CLI
With the Jenkins CLI you can interact with Jenkins via a shell script. This should be the way when you want to gather stuff from outside of Jenkins.
https://wiki.jenkins.io/display/JENKINS/Jenkins+CLI
If Jenkins is secured then I think you will have to provide credentials when using the Jenkins CLI. With Jenkinspipelines you don't need credentials, because they are executed in Jenkins. But you need to define permissions on the Jenkins Jobs (or in the Pipelines) so that Jenkins Jobs can access Artifacts of other Jobs. (CopyArtifactPermission)

How can Jenkins read a polling text file checked in GIT to trigger a deployment?

Current scenario: Build and deployment happens in development environment and the code is checked in to GIT and the JAR file is placed in Nexus. Then a change request is raised to deploy the same to the QA environments. The CR is attached with two parameterized text files (One of which contains the nexus path and other contains website URL) which act as input for parametrized build along with selection of environment. Run deploy
Target Scenario:We want to remove the CR part and in doing so we want a file (containing parameters which were attached in CR) which when pushed to GIT, a copy-paste should happen to the parametrized Jenkins job in respective parameters and select the environment from dropdown.
What is the best way to achieve this, either by creating another Jenkins job which can read the parameters from the file or is there any other way.
P.S. We don't want to make any editing in the existing Parameterized Jenkins jobs.
Using the Jenkins GitHub Plugin, you can create a separate job with a GitHub build trigger. By adding the GitHub repo (where the parameter file is pushed) to this Jenkins job, you can process the file to get the parameters you want in order to kick off the appropriate Jenkins jobs.
For Jenkins to process the parameters, one option is to use the EnvInject Plugin. (As suggested in this answer.) Another suggestion: Extended Choice Parameter Plugin (from this answer).

Adding Jenkins Pipelines on Build

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.

Jenkins: Can I Generate groovy script from existing Job?

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.

How to get URL of pipeline job in jenkins

We are setting up a continuous delivery pipeline in Jenkins, using the build pipeline plugin.
Our deployment steps uses a proprietary deploy tool (triggered by a HTTP request from jenkins), but we need to have an additional Jenkins step for acceptance tests on the then deployed project. So our deploy tool will need to trigger the last pipeline step.
The jenkins setup for this is obvious:
For a Manually Triggered downstream build step: To add a build step
that will wait for a manual trigger:
Select the Build Pipeline Plugin, Manually Execute Downstream Project check-box
Enter the name(s) of the downstream projects in the Downstream
Project Names field. (n.b. Multiple projects can be specified by using comma, like "abc, def".)
Source: Build Pipeline Plugin
The problem is: I can't seem to find a way to trigger this downstream build through a URL.
In fact I'd need the URL in the deploy job, so I can send it to the deploy tool as a callback URL. Can anybody help?
If I understand correctly, you want to use remote access API, which to my knowledge is no different between general project or pipeline one.
Take a look here:
https://wiki.jenkins-ci.org/display/JENKINS/Remote+access+API
Submitting jobs
Jobs without parameters
You merely need to perform an HTTP POST on JENKINS_URL/job/JOBNAME/build?token=TOKEN where TOKEN is set up in the job configuration.
As stated above by #rafal S do
read a file which has list projects name for which build job has to be triggered do a curl HTTP POST on JENKINS_URL/job/${JOBNAME from the file}/build?token=TOKEN within a for loop , where for loop has list of all project names from the file you read

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