Ansible – Part 1 – Introduction

Latest posts by Gineesh Madapparambath (see all)

You have hundreds and thousands of online documentation and wiki pages for learning Ansible, and this is our attempt to cover Ansible in a simple and beginner level approach.

See all parts of  Automation with Ansible Guides here

What is Ansible

Ansible is a simple and awesome IT automation engine by which you can automates your  IT environment for provisioning, configuration management, application and patch deployment, orchestration etc.

Ansible is,

  • Simple – commands and playbooks are human readable and easy to exchange between teams; they don’t need special skills to read it.
  • Powerful – you can manage application/patch/server deployment, configuration, workflow automation or appliances (ESX hosts, Storage boxes or network devices).
  • Agentless – Ansible does not need any agent to be running on the managed hosts , instead it connect to the hosts using OpenSSH or WinRM.

How Ansible Works

How Ansible Works

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Ansible Concept and Architecture

Controlnode – Ansible is installed and run from the controlnode and will contain copies of your project file including ansible playbooks. It can be a workstation or a dedicated server in the environment.

Managed Hosts – these are listed servers or nodes in the inventory – defined as static or via dynamic inventory scripts – on which Ansible commands or playbook tasks need to be executed.

Playbook – Plays are ordered set of tasks to execute against host selections from your inventory. A playbook is a file containing one or more plays.

Tasks – Task run a module with arguments to accomplish the required state or action.

Tasks → Plays → Playbook

Ansible Tower – is an enterprise framework by Redhat, to manage, control and secure your ansible environment.

Use Cases

Let’s learn about Ansible Installation in next part.

See all parts of  Automation with Ansible Guides here

Gineesh Madapparambath

Gineesh has worked as a Systems Engineer, Automation Specialist, and content author. His primary focus is on Ansible Automation, Containerization (OpenShift & Kubernetes), and Infrastructure as Code (Terraform). (aka Gini Gangadharan -

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