So you want to be a full-stack developer? How to build a full-stack python web application by Kate Heddleston

Transcript

1. Full-stack Python Web Applications

2. Kate Heddleston @heddle317

3. Python is often one part of a much larger system.

4. None

5. What we’re going to talk about... 1. A (semi) typical

   web application 2. Dev, staging, production, deploy system 3. Helpful python libraries

6. What we’re not going to talk about... • Massively scalable

   web applications. • Every single installation on the machine. • Nitty gritty details of anything.

7. Web Application

8. Parts of a Stack 1. Operating System 2. Web Server

   3. Database 4. Application Language

9. Web Server Apache mod_wsgi Application Code Python Application Code Python

10. Postgres Database Data

11. Web Server Apache mod_wsgi Application Code Python Postgres Database

12. Web Server Application Code Database

13. Web Server Nginx/ Gunicorn Apache/ mod_wsgi

14. Application Code Frameworks Python libraries Frontend Static Files (maybe)

15. Database PostgreSQL MySQL SQLServer Redis MongoDB

16. Web Server Application Code Database Logging

17. Logging Log files on the machine

18. Web Server Application Code Logging Version Control Database

19. Version Control git svn Github Bitbucket

20. Web Server Application Code Logging Version Control Database SMTP Server

21. SMTP Server PostmarkApp Sendgrid Amazon SES

22. Web Server Application Code Logging Version Control Database SMTP Server

    Data Store Async Tasks

23. Async Frameworks Twisted Tornado Async Tasks Python-rq/Redis Celery/RabbitMQ

24. Web Server Application Code Logging Version Control Database SMTP Server

    Data Store Async Tasks !Exception Handling!

25. !Exception Handling! Emails

26. Web Server Application Code Logging Version Control Database SMTP Server

    Data Store Async Tasks !Exception Handling!

27. Web Server Application Code Logging Version Control Database SMTP Server

    Data Store Async Tasks !Exception Handling!

28. Web Server Application Code Logging Version Control Database SMTP Server

    Data Store Async Tasks !Exception Handling! Cache

29. Cache Memcached Redis Varnish

30. Web Server Application Code Logging Database Data Store Async Tasks

    !Exception Handling! Cache Monitoring

31. Monitoring New Relic Nagios Pingdom

32. Web Server Application Code Logging Database Data Store Async Tasks

    !Exception Handling! Cache

33. Web Server Application Code Logging Database Data Store Async Tasks

    !Exception Handling! Cache

34. !Exception Handling! Emails Sentry

35. Web Server Application Code Logging Database Data Store Async Tasks

    !Exception Handling! Cache

36. Logging Log Server Loggly Splunk

37. Web Server Application Code Logging Database Data Store Async Tasks

    !Exception Handling! Cache

38. Web Server Application Code Database Data Store Async Tasks Cache

    Web Server Application Code Cache Load Balancer

39. Logging !Exception Handling! Monitoring Version Control SMTP Server

40. Web Server Application Code Database Data Store Async Tasks Cache

    Load Balancer Web Server Application Code Cache Data Store Async Tasks Database Database

41. System of Systems

42. Production (aka everything you just built) Dev Deploy

43. Dev Venv & Venvwrapper Vagrant & VirtualBox

44. Deploy git pull & restart services

45. Deploy Production (aka everything you just built) Dev Testing

46. Testing Jenkins CircleCI TravisCI

47. Deploy Production Dev Testing Staging Dev Dev

48. Server Config Chef Puppet Ansible SaltStack Docker

49. Deploy Chef Puppet Ansible SaltStack Docker

50. Dev Venv & Venvwrapper Vagrant & VirtualBox

51. Deploy Production Dev Testing Staging Dev Dev Deploy Production Dev

    Testing Staging Dev Dev

52. Hosting AWS Rackspace Linode

53. Chef Repo for a Web Application https://github.com/heddle317/django-chef-application

54. PaaS Heroku Elastic Beanstalk

55. Resources Maps https://github.com/heddle317/full-stack- resources/tree/master/resources_maps

56. None
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59. Talk Maps https://github.com/heddle317/full-stack- resources/tree/master/talk_maps

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64. 3 Takeaways • What are the basic pieces of a

    full-stack. • What do these pieces look like in different environments. • Resources for learning more and working with these pieces.

65. Ask your questions now. Kate Heddleston @heddle317 https://github.com/heddle317/full-stack-resources

66. “A complex system that works is invariably found to have

    evolved from a simple system that works.” — John Gall, Systemantics (1975)

67. “A system is never finished being developed until it ceases

    to be used.” — attributed to Gerald M. Weinberg

68. “It is as if perfection be attained not when there

    is nothing more to add, but when there is nothing more to take away.” — Antoine de Saint-Exupéry, Terre des Hommes (1939)

69. “There is no such thing as a small change to

    a large system.” — systems folklore, source lost in the mists of time

70. “Everything should be made as simple as possible, but no

    simpler.” — commonly attributed to Albert Einstein; it is actually a paraphrase of a comment he made in a 1933 lecture at Oxford