Ansible Introduction

1. Ansible Introduction
@dylanninin
2020-09-10

2. Content
• Hello World
• What & Why
• Fundamental
• Advanced
• Best Practices
• Q&A

3. Hello World

4. 『 $ pip install ansible 』

5. server-guard: playbook

7. What is Ansible

8. A simple but powerful IT automation System

9. TEAM IMPACT
• Save time and be more productive
• Eliminate repetitive tasks
• Fewer mistakes & errors
• Improve collaboration and job satisfaction
ENTERPRISE IMPACT
• Overcome complexity
• More resources for innovation
• Increase accountability and compliance
The Value of Automation

11. Why Ansible

12. SIMPLE
Human readable automation
No special coding skills needed
Tasks executed in order
Get productive quickly
POWERFUL
App deployment
Configuration management
Workflow orchestration
Orchestrate the app lifecycle
AGENTLESS
Agentless architecture
Uses OpenSSH and WinRM
No agents to exploit or update
Predictable, reliable and secure
A simple but powerful IT automation System

13. Fundamental

14. Architecture
https://www.edureka.co/blog/what-is-ansible/

15. Inventory: hosts and groups
format: INI
https://docs.ansible.com/ansible/latest/user_guide/intro_inventory.html
format: YAML

16. -i inventory
-l subnet
Inventory: hosts and groups

17. Module: discrete units of code
within command line
within playbook
https://docs.ansible.com/ansible/latest/user_guide/modules_intro.html

18. Module: discrete units of code
https://docs.ansible.com/ansible/latest/reference_appendices/common_return_values.html

19. Module
https://docs.ansible.com/ansible/latest/modules/modules_by_category.html

20. Playbook
https://www.oreilly.com/library/view/ansible-up-and/9781491979792/

21. server-guard: playbook
Playbook

22. Variables
https://docs.ansible.com/ansible/latest/user_guide/playbooks_variables.html
- host_vars
- group_vars
- playbook

23. Variables
https://docs.ansible.com/ansible/2.3/playbooks_variables.html
priority

24. Templates
https://docs.ansible.com/ansible/latest/modules/template_module.html

25. Templates
https://jinja.palletsprojects.com/en/2.11.x/

26. Setup: Local Environment
https://www.vagrantup.com/

27. Layout
server-guard: playbook

28. ToolKit
1. ansible: execute via command line
2. ansible-playbook: run yaml playbook
3. ansible-vault: encryption/decryption of files

29. Advanced

30. YAML
https://docs.ansible.com/ansible/latest/reference_appendices/YAMLSyntax.html

31. Debug
ansible -v, —verbose

32. SSH
SSH: based on SSH

33. Python Interpreter
Bootstrap with raw
gitlab: playbook/hostname.yml

34. API
python runner.py
gitlab: playbook/runner.py

35. Plugins
https://docs.ansible.com/ansible/latest/plugins/plugins.html

36. Plugins - ngx_directive

37. Plugins - ngx_directive

38. Performance
https://www.ansible.com/blog/ansible-performance-tuning
OpenSSH：
- ControlPersist
- pipelining

39. Best Practices

40. https://docs.ansible.com/ansible/latest/user_guide/playbooks_best_practices.html

41. Automated Your Workflow

42. Role: for easy sharing
https://docs.ansible.com/ansible/latest/user_guide/playbooks_reuse_roles.html
role layout role usage

43. Galaxy: official sharing hub
https://galaxy.ansible.com/

44. Tower: centralized dashboard
https://www.ansible.com/products/tower

45. Q & A