AU294: Red Hat Enterprise Linux Automation with Ansible

As an RHCE exam candidate, you should be able to handle all responsibilities expected of a Red Hat Certified System Administrator, including these tasks:

Be able to perform all tasks expected of a Red Hat Certified System Administrator

• Understand and use essential tools
• Operate running systems
• Configure local storage
• Create and configure file systems
• Deploy, configure, and maintain systems
• Manage users and groups
• Manage security

Understand core components of Ansible

• Inventories
• Modules
• Variables
• Facts
• Plays
• Playbooks
• Configuration files
• Use provided documentation to look up specific information about Ansible modules and commands

Install and configure an Ansible control node

• Install required packages
• Create a static host inventory file
• Create a configuration file
• Create and use static inventories to define groups of hosts
• Manage parallelism

Configure Ansible managed nodes

• Create and distribute SSH keys to managed nodes
• Configure privilege escalation on managed nodes
• Validate a working configuration using ad hoc Ansible commands

Script administration tasks

• Create simple shell scripts
• Create simple shell scripts that run ad hoc Ansible commands

Create Ansible plays and playbooks

• Know how to work with commonly used Ansible modules
• Use variables to retrieve the results of running a command
• Use conditionals to control play execution
• Configure error handling
• Create playbooks to configure systems to a specified state

Use Ansible modules for system administration tasks that work with:

• Software packages and repositories
• Services
• Firewall rules
• File systems
• Storage devices
• File content
• Archiving
• Scheduled tasks
• Security
• Users and groups

Work with roles

• Create roles
• Download roles from an Ansible Galaxy and use them

Use advanced Ansible features

• Create and use templates to create customized configuration files
• Use Ansible Vault in playbooks to protect sensitive data

As with all Red Hat performance-based exams, configurations must persist after reboot without intervention.