Welcome to Osmium!!
JIRA is an issue tracking product, developed by Atlassian. It provides bug tracking, issue tracking, and project management functions.
Confluence is team collaboration software or Wiki. Written in Java - developed and marketed by Atlassian.
Here you can create tickets, make requests, and report issues as a customer would see it.
Rundeck is a task automation tool designed to allow the delegation of tasks to appropriate users.