Learn ANSIBLE with Real Code Examples
Updated Nov 27, 2025
Explain
Ansible automates repetitive IT tasks across servers, cloud, and network devices.
Uses declarative YAML playbooks for configuration and orchestration.
Agentless architecture via SSH (or WinRM for Windows).
Integrates with cloud providers, CI/CD pipelines, and container platforms.
Supports modular roles, collections, and reusable task libraries for enterprise automation.
Core Features
Playbooks - automation scripts in YAML
Roles - reusable, modular task sets
Inventory - list of managed hosts
Modules - units of work (file, package, user, etc.)
Ansible Galaxy - community role and collection marketplace
Basic Concepts Overview
Inventory - defines hosts/groups
Playbook - YAML automation script
Tasks - atomic actions using modules
Roles - modular and reusable tasks, handlers, and templates
Handlers - tasks triggered on state changes
Project Structure
Inventories (hosts.ini or YAML)
Playbooks (main.yml, deploy.yml, etc.)
Roles (tasks, templates, defaults, vars)
Collections (community modules and plugins)
Group_vars/host_vars for configuration
Building Workflow
Define inventory and groups
Write playbook YAML
Include tasks, handlers, and roles
Test playbook with --check and --diff
Deploy using ansible-playbook command
Difficulty Use Cases
Beginner: Install packages on a single server
Intermediate: Configure multiple web servers with roles
Advanced: Orchestrate multi-tier applications across cloud
Expert: Network automation with templates and API modules
Architect: CI/CD pipeline integration with dynamic inventories
Comparisons
Ansible vs Puppet: agentless vs agent-based
Ansible vs Chef: YAML playbooks vs Ruby DSL
Ansible vs Terraform: configuration management vs infrastructure provisioning
Ansible vs SaltStack: simplicity vs scale and speed
Ansible vs CFEngine: modern features and community vs legacy automation
Versioning Timeline
2012 - Ansible 1.0 released
2014 - Ansible 1.5 major improvements
2015 - Ansible Tower open-source release
2017 - Ansible 2.x with major refactoring
2020+ - Ansible 4.x+ modern modules and Collections ecosystem
Glossary
Playbook - YAML automation script
Role - reusable set of tasks and configurations
Inventory - list of hosts/groups
Module - unit of work for a task
Handler - task triggered by state changes