Ansible whirlwind tour
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This document provides an introduction to Ansible, an open source configuration management tool. It discusses how Ansible works by having a main server that pushes configuration changes out to remote hosts using SSH. Ansible configurations are defined using playbooks, which are lists of plays that specify the hosts and tasks to configure. Hosts are organized into groups in an inventory file. Modules define the specific configuration tasks and return JSON results. The document recommends optimizing SSH for Ansible's push-based approach.
Ansible whirlwind tour
- 1. Ansible Whirlwind Tour An Introduction
- 2. whoami Sushant Srivastava I work at Akamai Technologies Pvt. Ltd. Platform Infrastructure Engineer On my day job I work on Java, Python, Ruby, Perl and Shell. @ssushant on Twitter
- 3. Motivation - The Devops Revolution
- 4. Ansible Configuration management ● Easy to read syntax ● Nothing to install on remote hosts ● Push-based ● Ansible scales down ● Built-in modules ● Thin layer of Abstraction
- 5. How Ansible Works Main Server Remote
- 6. Ansible Playbook Main orchestration A list of Plays Each play contains ○ A set of hosts to configure ○ A list of tasks to be executed on those hosts
- 8. Ansible Inventory File The default way to describe your hosts An ini file Hosts can be grouped into such groups as webservers, database servers etc.
- 9. Ansible Module from ansible.module_utils.basic import * use main() to run your script logic use exit_json with information use fail_json with failure message
- 10. Ansible Tips Ansible uses SSH by default, so SSH optimizations will come handy. SSH Multiplexing
- 11. Thank you