Ansible Documentation: Complete Reference & Quick Start Guide (2026)

By Luca Berton · Published 2024-06-29 · Category: installation

Your complete Ansible documentation hub. Quick-start guides, module reference, playbook examples, and links to official docs. Everything you need in one place.

Looking for Ansible documentation? This page is your complete reference hub — whether you need the official docs, module references, or practical guides to get started.

Official Ansible Documentation

Resource	URL	Description
Ansible Core Docs	docs.ansible.com	Official documentation for Ansible core
Module Index	Module Index	Complete list of all Ansible modules
Ansible Galaxy	galaxy.ansible.com	Community roles and collections
Ansible Lint	ansible-lint.readthedocs.io	Linting rules and best practices
AWX/Controller	ansible.readthedocs.io/projects/awx	AWX/Automation Controller docs

Quick Start: Your First Playbook in 5 Minutes

1. Install Ansible

# Ubuntu/Debian
sudo apt update && sudo apt install ansible -y

# RHEL/CentOS/Fedora
sudo dnf install ansible-core -y

# macOS
brew install ansible

# pip (any OS)
pip install ansible

→ Full install guides: Ubuntu 24.04 | Fedora 42 | RHEL | pip | All distros

2. Create an Inventory

# inventory.ini
[webservers]
web1.example.com
web2.example.com

[databases]
db1.example.com

→ Complete guide: building an Ansible inventory

3. Write a Playbook

# site.yml
- name: Configure web servers
  hosts: webservers
  become: true
  tasks:
    - name: Install nginx
      ansible.builtin.apt:
        name: nginx
        state: present

    - name: Start nginx
      ansible.builtin.service:
        name: nginx
        state: started
        enabled: true

4. Run It

ansible-playbook -i inventory.ini site.yml

Core Concepts Reference

Playbooks & Tasks

Concept	Description	Guide
Playbooks	YAML files defining automation tasks	Playbook Examples
Tasks	Individual units of work	Module Guide
Handlers	Tasks triggered by changes	Handlers Guide
Roles	Reusable automation packages	Roles Guide
Templates	Jinja2 file generation	Template Guide

Control Flow

Feature	Description	Guide
Conditionals	`when:` statements	When Guide
Loops	`loop:` and `with_items:`	Loops Guide
Blocks	Group tasks with error handling	Error Handling
Tags	Selectively run tasks	Ansible Best Practices
Check Mode	Dry-run playbooks	Check Mode Guide

Variables & Facts

Feature	Description	Guide
Variables	`vars:`, `vars_files:`, `extra_vars`	Extra Variables
Facts	Auto-discovered system info	Ansible Facts
set_fact	Define variables at runtime	set_fact Guide
Vault	Encrypt sensitive data	Vault Guide
Filters	Transform data with Jinja2	selectattr

Most-Used Modules

File Management

Module	Purpose	Guide
`ansible.builtin.copy`	Copy files to remote	Copy Guide
`ansible.builtin.file`	Manage files/dirs/links	File Guide
`ansible.builtin.template`	Generate files from Jinja2	Template Guide
`ansible.builtin.lineinfile`	Edit single line in file	lineinfile
`ansible.builtin.unarchive`	Extract archives	unarchive
`ansible.builtin.fetch`	Download from remote	fetch
`ansible.builtin.stat`	Get file info	stat
`ansible.builtin.slurp`	Read remote file content	slurp

System & Services

Module	Purpose	Guide
`ansible.builtin.service`	Manage services	Service Guide
`ansible.builtin.user`	Manage users	User Guide
`ansible.builtin.cron`	Schedule tasks	Cron Guide
`ansible.builtin.apt`	Debian packages	Install Ansible Ubuntu
`ansible.builtin.dnf`	RHEL packages	Install Ansible Fedora
`ansible.builtin.reboot`	Reboot hosts	Reboot Guide

Commands & Scripts

Module	Purpose	Guide
`ansible.builtin.command`	Run commands	Command vs Shell
`ansible.builtin.shell`	Run shell commands	Command vs Shell
`ansible.builtin.script`	Run scripts	Script Guide
`ansible.builtin.debug`	Print variables	Debug Guide

Networking & Web

Module	Purpose	Guide
`ansible.builtin.uri`	HTTP requests	URI Module
`ansible.builtin.get_url`	Download files	get_url
`ansible.builtin.git`	Git operations	Git Module
`ansible.posix.mount`	Mount filesystems	Mount Guide

Platform Guides

Platform	Guide
Windows	Ansible for Windows
Docker	community.docker collection overview
AWS	the Ansible AWS reference
Nginx	Nginx hardening via Ansible

Tools & Ecosystem

Tool	Purpose	Guide
Ansible Galaxy	Share & download roles	Galaxy Guide
AWX	Web UI for Ansible	AWX Guide
Ansible Vault	Secret management	Vault Guide
Ansible Lint	Code quality	Lint Guide
ansible.cfg	Configuration file	ansible.cfg Guide
Ansible vs Ansible-core	Package differences	Comparison

Privilege Escalation

# In playbook
- name: Task requiring sudo
  ansible.builtin.apt:
    name: nginx
  become: true
  become_user: root
  become_method: sudo

→ Complete guide: Ansible Become & Privilege Escalation

Troubleshooting

Error	Solution
`sshpass` not found	Install sshpass
Vault decrypt failed	Vault troubleshooting
`ModuleNotFoundError: ansible`	Fix module error
Host key checking	Disable host key check
Missing sudo password	Fix sudo error
Python interpreter	Configure interpreter

FAQ

What is the latest version of Ansible?

As of 2026, the latest Ansible core version is in the 2.17.x series. Check ansible --version or visit pypi.org/project/ansible-core for the latest.

What is the difference between Ansible and ansible-core?

ansible-core is the minimal engine. The ansible package includes ansible-core plus community collections. See our detailed comparison.

Is Ansible free?

Yes! Ansible core and AWX are open source. Red Hat's Ansible Automation Platform is the commercial offering with support, certified content, and enterprise features.

Where can I learn Ansible?

Start with the Quick Start above, then explore our 900+ tutorials covering every module, pattern, and best practice.

Category: installation

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