Ansible — Prerequisites

What to Know Before Starting Ansible

Ansible automates server configuration over SSH. These foundations make learning it smooth.

Required

1. Linux Command Line — Comfortable Level

Ansible manages Linux servers. You must understand:

ssh user@server              # Connect to remote servers
sudo command                 # Run as root
systemctl start/stop nginx   # Manage services
apt install / yum install    # Install packages
cat, nano, vim               # Read and edit files
chmod, chown                 # File permissions

If this feels unfamiliar: Complete the Linux Fundamentals section first (1-2 weeks).

2. SSH — Basic Understanding

Ansible connects via SSH. You should know:

3. Basic YAML Syntax

All Ansible playbooks are YAML. You must be able to read and write:

# YAML is indentation-sensitive — always use 2 spaces, never tabs
- name: Install nginx         # list item (starts with -)
  apt:                        # module name (indented 2 spaces)
    name: nginx               # module parameter (indented 4 spaces)
    state: present

# Variables
my_variable: "hello"
port_number: 8080
is_enabled: true

# Lists
packages:
  - nginx
  - python3
  - git

4. Understanding of What You're Automating

Ansible automates server tasks. If you've never manually set up a web server, database, or user account on Linux — do that manually once first. Automation of something you've never done manually is confusing.

Spend 30 minutes manually:

Now Ansible's modules (apt, user, copy) will make perfect sense.

Nice to Have

Python Basics

Ansible is written in Python. You don't need to write Python, but understanding variables, conditions (if), and loops (for) helps when reading Ansible's Jinja2 templates.

Multiple VMs or Servers

Ansible's power shows when managing 10+ servers simultaneously. Practice is better with at least 2-3 VMs. Use:

Learning Order

Linux basics (if needed) ← 1-2 weeks
        ↓
SSH key setup
        ↓
Ansible Installation
        ↓
Ansible Fundamentals (ad-hoc commands, first playbook)
        ↓
Intermediate (roles, variables, templates)
        ↓
Advanced (dynamic inventory, Vault, AWX)

Time Estimate

With the prerequisites above: