Ansible Master slave configuration on Ubuntu

Simple Ansible master slave setup on ubuntu.
Commands uses -:

On Master

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

Step 2: on Worker

sudo apt-get update


Step 3: Configure SSH Key-Based Authentication

On Master: ssh-keygen

id_ed25519.pub

on Slave: sudo nano .ssh/authorized_keys

Then add the key

4. Test SSH connection: from master

ssh azureserver@your_server_ip

Step 5: Configure Ansible Inventory

sudo nano /etc/ansible/hosts

[webservers]
node1 ansible_host=your_server_ip ansible_user=azureserver

Step 6: Run a test
ansible webservers -m ping

ansible all -m ping

Playbook yaml

---
- hosts: webservers
become: yes
tasks:
- name: install apache2
apt:
name: apache2
update_cache: yes
state: latest