In Jenkins, execute a managed script - jenkins

We have some scripts that are managed in Jenkins, and are not yet in a repository.
In a Jenkinsfile (scripted or declarative), how can I execute a managed script?
Thanks ahead!

Related

Ho do I restart the jenkins pipeline with an updated JenkinsFile

I have a Jenkins project with a declarative pipeline defined in a JenkinsFile stored in a SCM. I use the "Pipeline script from SCM" option.
Sometimes if something fails I do a quick fix in the jenkins workspace and rerun the pipeline starting at a specific stage. This is working nicely.
There are cases in which I need to update the JenkinsFile and then do a 'restart at stage' with the updated Jenkins file. However, I can't find the JenkinsFile anywhere in the workspace folder. I need to know the location so I can do a quick fix and then restart the pipeline. Where is the JenkinsFile located?
See "Replay" Pipeline Runs with Modifications:
The "Replay" feature allows for quick modifications and execution of an existing Pipeline without changing the Pipeline configuration or creating a new commit.

Running jobs in Jenkins slave node using Groovy script

I am confused about whether a Jenkins job can be run using Groovy script in the slave node. I referred a StackOverflow answer [1] which says that System Groovy script jobs can be run in master and not in slave, and to run a job in slave it has to be Groovy script rather than System Groovy Script. Can someone clarify me whether we can run a slave job using System Groovy Script? Since I am trying through Groovy script I am unable to access few Jenkins instances. Please suggest me a better way with an explanation. Thanks in advance
I have finally found that it is only possible to run jobs in Jenkins slave node using Grovvy script. The system groovy script runs inside the Hudson master's JVM. Thus it will have access to all the internal objects of Hudson, so we can use this to alter the state of Hudson. It is similar to the Jenkins Script Console functionality.

Jenkins execute local Pipeline Script without SCM

I created this account because I couldn't find a solution for my problem. I hope you can help me. The goal is to write a local pipeline script for jenkins and use it in my pipeline (I'm using version 2.138). I don't want to write it in the jenkins UI or use any SCM (no git!). I saw that I can execute a shell scipt in a freestyle-job, but it doesn't work with pipelines. Maybe there is some plugin that can help me?

Groovy + Jenkins + Perforce

I have a groovy script to send notifications. I need to run this as post build after each of my job in jenkins. I need to do this without manually updating each job.
Problems faced:
Tried to make this as jenkinsfile. But Pipleine script from perforce is buggy and cannot be used.
Any suggestions??
You can run a script after any job using plugins. Post build task this plugin will be useful in your case. No manual work needed after configured.

Can I use Jenkins CLI or some groovy scripts to create a new job

Can I use Jenkins CLI or some groovy scripts to create a new job?
This job can be copied from the previous one but the svn repo isn't the same.
There is a job-dsl plugin which allows you to create new jobs with groovy script
Yes of course, see you can use groovy for this

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