Ansible Pilot

Ansible Development: A Comprehensive Guide

Mastering IT Automation with Ansible: From Basics to Advanced Techniques

Learn how to automate IT tasks using Ansible, covering everything from installation to advanced integration with Kubernetes and cloud services.
June 29, 2024
Access the Complete Video Course and Learn Quick Ansible by 200+ Practical Lessons

Ansible Development: A Comprehensive Guide

Ansible is an open-source automation tool developed by Red Hat that enables IT professionals to automate tasks such as configuration management, application deployment, and task automation. This article delves into the essential aspects of Ansible development, covering its architecture, core concepts, and practical applications.

Understanding Ansible Architecture

Ansible’s architecture comprises the following key components:

  1. Ansible Engine: This is the core component that executes the automation tasks defined in Ansible playbooks.
  2. Ansible Playbooks: Written in YAML, playbooks describe the desired state of the system and define the tasks to be executed.
  3. Ansible Inventory: This is a file that lists the hosts and groups of hosts that Ansible will manage.
  4. Modules: These are the units of work that Ansible executes. They can be anything from installing software to managing services.
  5. Plugins: These extend Ansible’s core functionalities, including action plugins, cache plugins, and callback plugins.

Ansible operates on a push model, where tasks are executed from a central control node to the managed nodes over SSH or WinRM, eliminating the need for agent software on the managed nodes.

Getting Started with Ansible

Ansible is favored for its simplicity and ease of use. Here’s how you can get started with Ansible:

  1. Installation: Ansible can be installed on any Unix-like system, including macOS and Linux. It can also be run on Windows under the Windows Subsystem for Linux (WSL).

    sudo apt update
    sudo apt install ansible
  2. Setting Up an Inventory: The inventory file defines the hosts and groups of hosts to manage.

  3. Writing Your First Playbook: Ansible playbooks are written in YAML. Here’s a simple example that installs Nginx on web servers.

    - name: Install Nginx on web servers
      hosts: webservers
      become: yes
        - name: Install Nginx
            name: nginx
            state: present
  4. Executing Playbooks: Run your playbook with the ansible-playbook command.

    ansible-playbook -i inventory.ini playbook.yml

Core Ansible Concepts

  1. Roles: Roles provide a way to organize playbooks and related files to be easily shared and reused.

    - hosts: webservers
        - nginx
  2. Variables: Variables allow you to store values that can be reused and overridden as needed.

      http_port: 80
      max_clients: 200
  3. Handlers: Handlers are tasks that are run when notified by other tasks.

      - name: restart nginx
          name: nginx
          state: restarted
  4. Templates: Templates in Ansible are used to fill configuration files with variables.

      - name: Deploy configuration file
          src: templates/nginx.conf.j2
          dest: /etc/nginx/nginx.conf
          - restart nginx

Advanced Ansible Usage

  1. Ansible Tower: Ansible Tower is a web-based solution that makes Ansible even more powerful by providing role-based access control, job scheduling, and graphical inventory management.
  2. Dynamic Inventory: This is used to manage and interact with hosts that are not statically defined in the inventory file, such as cloud environments.
  3. Custom Modules and Plugins: While Ansible comes with many built-in modules, custom modules can be written to extend its functionality using any programming language, although Python is most common.

Integrating Ansible with Kubernetes

Ansible can manage Kubernetes clusters, automating tasks such as cluster provisioning, application deployment, and configuration management. The k8s module allows you to interact with Kubernetes resources directly from Ansible playbooks.

- name: Create a Kubernetes Pod
  hosts: localhost
    - name: Create a Pod
        state: present
          apiVersion: v1
          kind: Pod
            name: nginx
            namespace: default
            - name: nginx
              image: nginx:1.14.2
              - containerPort: 80


Ansible is a powerful tool for automating a wide range of IT tasks. Its simple, agentless architecture and human-readable automation language make it accessible to both beginners and seasoned professionals. Whether you are managing traditional infrastructure, containerized environments, or cloud services, Ansible provides the tools you need to automate and orchestrate your IT operations efficiently.

For more detailed guidance and advanced topics, refer to the comprehensive resources available in Red Hat’s documentation and the community-contributed materials on platforms like GitHub and Ansible Galaxy【12†source】【13†source】.

Subscribe to the YouTube channel, Medium, and Website, X (formerly Twitter) to not miss the next episode of the Ansible Pilot.


Learn the Ansible automation technology with some real-life examples in my

My book Ansible By Examples: 200+ Automation Examples For Linux and Windows System Administrator and DevOps

BUY the Complete PDF BOOK to easily Copy and Paste the 250+ Ansible code

Want to keep this project going? Please donate

Access the Complete Video Course and Learn Quick Ansible by 200+ Practical Lessons
Follow me

Subscribe not to miss any new releases