Ansible_Presentation and ansible master .pptx

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1. Ansible – Overview Ansible is an open-source automation tool for configuration management, application deployment, and orchestration. Ansible can be used to deploy the software on different servers at a time without human interaction Developed by Red Hat Uses YAML (playbooks) Agentless – uses SSH or WinRM

2. Why Ansible? • Simplifies automation • Reduces manual errors • Increases deployment speed • Works across diverse environments • Integrates with DevOps pipelines

3. Key Features • Agentless architecture • Human-readable playbooks • Cross-platform support • Secure communication via SSH • Extensible with modules and plugins

4. Ansible Architecture Main components: • Control Node – machine where Ansible is installed • Managed Nodes – target systems • Inventory – list of hosts • Modules – reusable scripts • Playbooks – automation instructions

5. Core Components • Inventory: Defines managed hosts • Modules: Units of work (install, copy, etc.) • Playbooks: YAML files describing tasks • Tasks: Actions executed on hosts • Roles: Reusable and organized automation code

6. How Ansible Works 1. Define inventory (hosts) 2. Create playbooks (tasks in YAML) 3. Execute using ansible -playbook command 4. Ansible connects via SSH/ WinRM 5. Performs tasks and reports results

7. Sample Ansible Playbook --- - name: Install and start Apache hosts: webservers become: yes tasks: - name: Install Apache apt: name: apache2 state: present - name: Start Apache service: name: apache2 state: started

8. Ansible Modules Modules are pre-built automation units. Examples: • apt, yum – package management • service – start/stop services • copy, template – file operations • user, group – user management • git, docker – DevOps tools

9. Ansible Playbooks • Written in YAML format • Describe automation tasks in human-readable way • Support conditionals, loops, handlers • Idempotent – running multiple times yields same state

10. Handlers and Roles Handlers: • Triggered by changes in tasks • Used for restarting services Roles: • Help organize playbooks • Reusable and shareable structure for automation

11. Ansible Tower / AWX • Web-based UI and REST API for Ansible • Role-based access control • Visual dashboards and job templates • Scheduling and logging features

12. Use Cases • Server provisioning and configuration • Application deployment • Continuous integration/DevOps automation • Network automation • Security and compliance enforcement

13. Comparison with Other Tools Tool | Architecture | Language | Agent Required ------|---------------|-----------|---------------- Ansible | Push-based | YAML | No Puppet | Pull-based | Ruby DSL | Yes Chef | Pull-based | Ruby | Yes SaltStack | Push/Pull | YAML + Python | Optional

14. Advantages of Ansible • Simple to learn and use • No agents required • Scalable and reliable • Integrates well with CI/CD • Open-source and community-driven

15. Conclusion Ansible simplifies IT automation through a declarative, agentless, and secure approach. It enables DevOps teams to automate infrastructure, configuration, and deployments efficiently.