Ansible Installation and Setup Master & Worker Node

FIRST RUN THIS SCRIPT BELLOW
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#! /bin/bash
sudo apt-add-repository ppa:ansible/ansible -y
sudo apt update -y 
sudo apt install ansible -y
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[NOW ON MASTER NODE DO THIS BELLOW STEPS]
-Go to this dir::  vim /etc/ansible/hosts  and add this line
[web]
136.865.789.087 (this is the private ip of node1)

-Now run this::  ssh-keygen     and hit enter

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[NOW ON WORKER NODE DO THIS STEP BELLOW TO ADD IT AS A ANSIBLE REMOTE HOST]
-Go to node1 and run this and set the passwrd::  passwd
-Now edit this file and chnage these two lines bellow as directed::  vim /etc/ssh/sshd_config

PermitRootLogin yes   (uncommented it)

PasswordAuthentication yes  (change it no to yes)

-Now run this::   service sshd restart 

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[NOW ON MASTER NODE AGAIN DO THESE STEPS]
-Now run this and give the password you set it on node1::  ssh-copy-id -i /home/ubuntu/.ssh/id_rsa.pub root@123.123.123.123 (pvt ip of node1)

-Now go to /etc/ansible and run:: vim hosts

-Now add this line:: [webserver]
172.31.62.51 ansible_ssh_user=root ansible_ssh_pass=9090

-Now run it to test::  ssh root@172.31.15.160  (node1 pvt ip)