Objectif

• Linux Automation with Ansible

• Ansible Components

• AD HOC Commands With Ansible

• Managing Variables and Facts

Programme

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

Public visé

• There is no formal prerequisites for this course; however, previous system administrator experience on other operating system would be very beneficial.