DevOps Classroomnotes 28/Dec/2022

What needs to provided to Ansible

• Desired State:
  • The Desired state is written in YAML and is called as Playbook.
• List of Nodes:
  • The nodes where the playbook has to be executed, this is referred as inventory
• Credentials:
  • Credentials can be passed as part of playbook/inventory/commandline

Setup of Ansible

Ansible Control Node

• This component takes the inputs mentioned above to execute playbooks on the nodes
• This Node is a linux vm or physical machine and we install ansible.
• Credentials:
  • Username
  • Password
  • Key Based Approach
• Lab Setup:
  • AWS (ubuntu):
    
    
  • Azure (Centos)
    
    
• Ansible Setup:
  • Refer Here for any os installation and Refer Here for ubuntu

sudo apt update
sudo apt install software-properties-common
sudo add-apt-repository --yes --update ppa:ansible/ansible
sudo apt install ansible -y
ansible --version

• centos: Refer Here

sudo yum install epel-release -y
sudo yum install ansible -y

• The above commands didnt work in Centos 8 distribution. (To be fixed)

Exercise

• Refer Here for json and yaml tutorial.

Note:

• Installing Necessary Softwares on your System Refer Here