Ansible: Using Ansible, Installing JBoss EAP on 10 Linux servers

Installing JBoss EAP on 10 Red Hat Enterprise Linux (RHEL) servers using Ansible and updating the PostgreSQL datasource in standalone.xml is a great automation task for someone new to Ansible! I'll explain each step in detail, keeping it beginner-friendly while ensuring it's thorough enough for your use case. We'll assume you're using JBoss EAP 7.4 and PostgreSQL, and that you have root or sudo access on all servers. What is Ansible? Ansible is an automation tool that lets you configure and manage multiple servers from one central machine (called the control node ) without needing to log into each server manually. It uses simple text files called playbooks to define what you want to do - like installing software or editing files. Prerequisites Before we start, ensure you have: