Linux Redhat Administration III – Automation Ansible-RHEL8

Linux Exam EXAM-294 with Ansible Sample Practice Exams – OS Version 8

Linux Certified System Administrator Exam (EX-200 – 2.5 Hours Required), there are two course modules as shown below.

•   Linux System Administration I – SA1 (First part)

•   Linux System Administration II – SA2 (Second part)

Linux Certified Engineer (EXAM294 – 4 Hours Required) [ First & Second part is required to complete this course. ]

•   Linux System Administration III: Linux Automation with Ansible ==> This Course Module will teach you this module.

Course Description:

Linux System Administration III: Linux Automation with Ansible (RH294)

Introduction

• What is Ansible?

• Ansible Limitations

• Ansible Architecture

• Overview of Ansible Setup

• Quiz1

Ansible Installation

• Installing Ansible

• Guided Exercise

Deploying Ansible

• Ansible Components

  – Ansible Configuration

  – Host Inventory

  – Core Modules

  – Custom Modules

  – Playbooks

  – Connection Plugins

• Ansible Host Inventories

• Guided Exercise: Building an Ansible Inventory

• Customizing Ansible

• Managing Ansible Configuration files

AD HOC Commands With Ansible

• Syntax of Ad Hoc Command

• Ansible Modules

• Ansible Command-line Options

• Idempotent behavior of Ansible Modules

• Guided Exercise

Implementing Playbooks

• Overview of Playbook Syntax

• Writing and Running Playbooks

• Lab – Write a Simple Playbook, User Creation task

• Guided Exercise – Web Server Installation

• Guided Exercise – Multiple Tasks

Managing Variables & Facts in Ansible

• Overview of variables in Ansible

• Lab-Managing Variables

• Hosts & Group variables

• Lab on Host & Group Variables

• Ansible Facts

Managing Secrets

• Ansible Vault Command

• Lab – Edit, encrypt, decrypt, and view files

• Guided Exercise – 1

• Guided Exercise – 2

Implementing Task Control

• Manage task control, handlers, and task errors in Ansible Playbooks.

• Task Iteration with Loops

• Lab – Simple Loops, Loops over a List of Hashes

• Lab – with_items, with_file

• Lab – using register variables with loops

• Lab – Running tasks Conditionally using when statement

• Lab – when statement using ansible facts

• Lab – Testing multiple conditions using when statement

• Lab – “in” keyword

• Lab – Combining Loops & Conditional Tasks

• Lab – Combining Conditionals & Register Varaibles

• Ansible Handlers

• Lab – Ansible Handlers

Handling Task Failures

• Managing task errors in plays – ignore_errors

• Specifying task failure Conditions

• failed_when keyword

• changed_when keyword

• Guided Exercise

Deploying files to managed hosts

• Describing files modules

• Lab – copy & fetch modules

• Lab – lineinfile & blockinfile modules

• Lab – modify file attributes such as SELinux Context

• Lab – stat module

• Guided Exercise

Deploying Custom files with Jinja2 Templates

• Overview of Jinja Templates

• Control Structure – using loops, variables

• Lab – for, loop.index variable, if else in Jinja2 Templates

• Guided Exercise

Configuring Parallelism

• About Parallelism in Ansible

• Managing rolling updates – serial keyword

• Guided Exercise – Forks Parameter

• Guided Exercise – Serial Keyword

Including & Importing Files

• Overview of Importing & Including files

• Import_playbook & import_tasks

• define variables using import_tasks

• Include_tasks and its comparison with import_tasks

• Guided Exercise

Simplifying Playbooks with Roles

• Ansible Roles

• Create Ansible Roles

• Lab: Simplifying Playbooks with Roles

Troubleshooting Ansible

• Log Files for Ansible

• The Debug Module

• Managing Errors : –syntax-check, –step, –list-tasks, –start-at-tasks

• Debugging

• Using check mode as a Testing Tool

• check_mode

• Guided Exercise

• Last Lecture

Bonus

• Linux EX294 with Ansible Sample Practice Exams – OS Version 8