Configuration of Ansible - DevOps: Beginner's Guide To Automation With Ansible

Expected Learning Outcomes
Install And Configure Ansible
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! Install Ansible
! Generate SSH Key-Pairs
! Create Ansible Inventory
! Implement YAML format for Inventory
! Configure AdHoc Commands

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Ansible
Installation

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Demo Environment
! Host node – Ansible host
! Two test hosts
Ansible
Host
Test Node
Test Node

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Ansible
Python Package
Manager
Linux
Repositories
A Python utility used to work with Python packages
Installs and upgrades latest versions of a software
package
pip install is used to install software packages
written in Python
Ansible Installation Options

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OpenSSH Server
!Ansible requires SSH
!OpenSSH on local and
remote hosts
!Generate SSH keypair

Ansible Installation DEMO
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! Provides a secure channel for systems to communicate
! Optimize authentication between the host and server
! A key pair: A public key and a private key
! The key pair is registered on the required servers

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Ansible
! Uses playbooks
! Written in Python
! Agent less

----
- name: Install WordPress, MySQL, Nginx and PHP-FPM
hosts: wordpress-server
remote_user: root
roles:
- common
- mysql
- nginx
- php-fpm
- wordpress
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Ansible Inventory
! /etc/ansible/hosts

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Ansible Inventory
! INI format
! Host Variables
! Group Variables
! Group of Groups

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Create
Ansible
Inventory

Create Ansible
Inventory DEMO
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Implement YAML DEMO
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Ansible AdHoc Commands
! Playbooks: Complex processes with multiple steps
! AdHoc Commands: Simple tasks with few steps
! Can be configured with the command line tool
! Easily customizable to accomplish specific tasks

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Ansible Ping Test
ansible all -m ping -i inventory

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Ansible AdHoc Commands
Install a
Package
ansible ubuntu -m apt -a”name=git” -i inventory
ansible fedora -m yum -a”name=git” -i inventoryFedora
Ubuntu
Bash command ansible all -m command -a”whoami” -i inventory
Copy file
ansible all -m copy -a”src=inventory dest=~/Desktop” -i
inventory
All
All

Configure AdHoc
Commands DEMO
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Recap
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! Install Ansible
! Create Ansible Inventory
! Use YAML
! AdHoc Commands

Configuration of Ansible - DevOps: Beginner's Guide To Automation With Ansible

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