Jenkins Groovy enable security and create a user in groovy script

groovy-create-user.md

This is a snippet that will create a new user in jenkins and if security has been disabled , it will enable it :)

import jenkins.model.*
import hudson.security.*

def instance = Jenkins.getInstance()

def hudsonRealm = new HudsonPrivateSecurityRealm(false)
hudsonRealm.createAccount("MyUSERNAME","MyPASSWORD")
instance.setSecurityRealm(hudsonRealm)
instance.save()

Bonus: Add the created user as admin for jenkins: what if you want that user to be like admin of jenkins who can access anything.. no problem..just add following lines right above the 'instance.save()' statement and run :)

def strategy = new GlobalMatrixAuthorizationStrategy()
strategy.add(Jenkins.ADMINISTER, "myUSERNAME")
instance.setAuthorizationStrategy(strategy)

Hi, what if I need more finer granularity for access to certain resources, such as Developer, or Tester role.

You can use Role Role Strategy plugin and configure finer permissions as shown in this script -> https://github.com/cloudbees/jenkins-scripts/blob/master/RBAC_Example.groovy

How to modify this script to this user to a specific existing group in Jenkins?