#!groovy

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

def instance = Jenkins.getInstance()

// Create user account
def hudsonRealm = new HudsonPrivateSecurityRealm(false)
hudsonRealm.createAccount("my_user", "my_pass")
instance.setSecurityRealm(hudsonRealm)

// Enable matrix auth strategy and set my_user as admin
def strategy = new GlobalMatrixAuthorizationStrategy()
strategy.add(Jenkins.ADMINISTER, "my_user")
instance.setAuthorizationStrategy(strategy)

instance.save()