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• Save the above script to $JIRAHOME/scripts/deactivate_inactive_users.groovy. Make it owned by root but readable by group jira.
• Go to the Scriptrunner Script Console and do a test run:
  

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  Warning
  06 Jan 2020 I am finding that users are not actually deactivated, when the script is run like this as a service. The script runs successfully judging by the logs, but users are unaffected. YMMV - I have not yet debugged this, and it may affect only my Jira 8.5.1 instance.

  
  If all looks good, go to Jira's Services  admin page, and add a service of type com.onresolve.jira.groovy.GroovyService 
  Image Modified

ScriptRunner Solution with SQL Rules

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