Slides for presentation on prototyping in the cloud from OSCON 2013

1. PROTOTYPING
IN THE CLOUD
Kirsten Jones
@synedra on twitter
http://www.princesspolymath.com
Wednesday, July 24, 13

2. THE PRINCESS
Many years of experience with APIs/REST
Developer support, helping people be
successful
Love hacking, creating prototypes
(check my blog, lots of code samples)
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3. THIS TALK
How to prototype in the cloud
Deploy full application stack
Basic example in PHP (Drupal)
More extensive examples in Node and Python
Most code available on Github
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4. PAAS PROVIDERS
Many providers
Examples here feature free payment tier,
portability, maturity
Heroku
Appfog
Others: Engineyard, Joyent, etc.
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5. APPFOG / PHP
Originally PHPFog
Now supports Java, .NET, Node, Ruby,
Python, PHP
Moderate level of configuration available
Many frameworks supported
Easy quick-start
Ruby-based toolkit
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6. APPFOG:
CREATE NEW APPLICATION
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7. APPFOG:
SUPPORTED FRAMEWORKS
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8. APPFOG: INFRASTRUCTURE
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9. APPFOG: BUILDING APP
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10. APPFOG:
DEFAULT DRUPAL INSTALL
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11. APPFOG:
TOOLBELT
sudo gem install af
af login
af pull appfogdemo
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12. HEROKU
Polyglot system
Started with Ruby on Rails
Ruby, Node.js, Clojure, Java, Python, and Scala.
Quick deployment, fine control of processes
Examples: Django, LinkedIn Today SMS,
IODocs
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13. HEROKU:
DJANGO PREREQUISITES
Heroku Toolbelt (Ruby)
Python
PIP for package management
% easy_install pip
Virtualenv
% pip install virtualenv
Heroku User Account
Postgres (needed for Django)
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14. HEROKU:
CREATE DJANGO APP
Following the Heroku Django tutorial
% mkdir herokudjango
% cd herokudjango
% virtualenv venv --distribute
% source venv/bin/activate
% pip install django-toolbelt
% django-admin.py startproject
herokudjango .
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15. HEROKU:
START LOCAL DJANGO APP
foreman start
15:29:49 web.1 | started with pid 14308
15:29:49 web.1 | 2013-07-13 15:29:49 [14308] [INFO] Starting gunicorn 17.5
15:29:49 web.1 | 2013-07-13 15:29:49 [14308] [INFO] Listening at: http://
0.0.0.0:5000 (14308)
15:29:49 web.1 | 2013-07-13 15:29:49 [14308] [INFO] Using worker: sync
15:29:49 web.1 | 2013-07-13 15:29:49 [14311] [INFO] Booting worker with pid:
14311
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16. HEROKU:
CONFIGURE REQUIREMENTS
pip freeze > requirements.txt
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17. HEROKU:
INITIALIZE GIT REPOSITORY
(venv)kirsten-mac:herokudjango kirsten$ git init
Initialized empty Git repository in /Users/kirsten/oscon/
herokudjango/.git/
(venv)kirsten-mac:herokudjango kirsten$ git add .
(venv)kirsten-mac:herokudjango kirsten$ git commit -m "heroku
django app”
[master (root-commit) 39cb46c] heroku django app
…
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18. HEROKU:
DEFAULT SETUP
Still need to push the actual application to the server…
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19. HEROKU:
PUSH TO THE CLOUD
(venv)kirsten-mac:herokudjango kirsten$ git push heroku master
Counting objects: 11, done.
Delta compression using up to 8 threads.
Compressing objects: 100% (8/8), done.
Writing objects: 100% (11/11), 4.15 KiB, done.
Total 11 (delta 0), reused 0 (delta 0)
-----> Python app detected
-----> No runtime.txt provided; assuming python-2.7.4.
-----> Preparing Python runtime (python-2.7.4)
-----> Installing Distribute (0.6.36)
-----> Installing Pip (1.3.1)
-----> Installing dependencies using Pip (1.3.1)
…
-----> Discovering process types
Procfile declares types -> web
-----> Compiled slug size: 30.0MB
-----> Launching... done, v5
http://peaceful-depths-8963.herokuapp.com deployed to Heroku
To git@heroku.com:peaceful-depths-8963.git
* [new branch] master -> master
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20. HEROKU:
DJANGO APP IN THE CLOUD
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21. HEROKU:
ADMIN COMMANDS
(venv)kirsten-mac:herokudjango kirsten$ heroku ps
Process State Command
------- --------- --------------------------
web.1 up for 2m gunicorn herokudjango.wsgi
(venv)kirsten-mac:herokudjango kirsten$ heroku logs
2013-07-13T22:40:28.697577+00:00 heroku[api]: Release v2 created by synedra@gmail.com
2013-07-13T22:40:28.662735+00:00 heroku[api]: Enable Logplex by synedra@gmail.com
2013-07-13T22:42:03.033821+00:00 heroku[router]: at=info code= desc="Blank app" method=GET path=/ host=peaceful-
depths-8963.herokuapp.com fwd="10.21.72.132, 173.36.196.8" dyno= connect= service= status=502 bytes=
2013-07-13T22:42:03.762626+00:00 heroku[router]: at=info code= desc="Blank app" method=GET path=/favicon.ico host=peaceful-
depths-8963.herokuapp.com fwd="10.21.72.132, 173.36.196.8" dyno= connect= service= status=502 bytes=
2013-07-13T22:42:03.925807+00:00 heroku[router]: at=info code= desc="Blank app" method=GET path=/favicon.ico host=peaceful-
depths-8963.herokuapp.com fwd="10.21.72.132, 173.36.196.8" dyno= connect= service= status=502 bytes=
2013-07-13T22:42:03.186189+00:00 heroku[router]: at=info code= desc="Blank app" method=GET path=/ host=peaceful-
depths-8963.herokuapp.com fwd="10.21.72.132, 173.36.196.8" dyno= connect= service= status=502 bytes=
2013-07-13T22:42:09.403312+00:00 heroku[router]: at=info code= desc="Blank app" method=GET path=/ host=peaceful-
depths-8963.herokuapp.com fwd="10.21.72.132, 173.36.196.8" dyno= connect= service= status=502 bytes=
2013-07-13T22:42:09.556041+00:00 heroku[router]: at=info code= desc="Blank app" method=GET path=/ host=peaceful-
depths-8963.herokuapp.com fwd="10.21.72.132, 173.36.196.8" dyno= connect= service= status=502 bytes=
2013-07-14T00:59:16+00:00 heroku[slug-compiler]: Slug compilation started
2013-07-14T01:00:42.243676+00:00 heroku[api]: Scale to web=1 by synedra@gmail.com
…
2013-07-14T01:00:43+00:00 heroku[slug-compiler]: Slug compilation finished
2013-07-14T01:00:46.595118+00:00 heroku[web.1]: Starting process with command `gunicorn herokudjango.wsgi`
2013-07-14T01:00:47.265537+00:00 app[web.1]: 2013-07-14 01:00:47 [2] [INFO] Starting gunicorn 17.5
2013-07-14T01:00:47.272266+00:00 app[web.1]: 2013-07-14 01:00:47 [7] [INFO] Booting worker with pid: 7
2013-07-14T01:00:47.266249+00:00 app[web.1]: 2013-07-14 01:00:47 [2] [INFO] Using worker: sync
2013-07-14T01:00:47.266163+00:00 app[web.1]: 2013-07-14 01:00:47 [2] [INFO] Listening at: http://0.0.0.0:54065 (2)
2013-07-14T01:00:47.783995+00:00 heroku[web.1]: State changed from starting to up
2013-07-14T01:00:55.028851+00:00 heroku[router]: at=info method=GET path=/ host=peaceful-depths-8963.herokuapp.com fwd="10.21.72.132,
173.36.196.8" dyno=web.1 connect=1ms service=102ms status=200 bytes=1975
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22. HEROKU:
WEB DASHBOARD
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23. HEROKU:
APPLICATION MANAGEMENT
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24. HEROKU:
DEPLOY EXISTING DJANGO APP
Django/LinkedIn/Twilio Integration
https://github.com/synedra/django-linkedin-
simple
GET/POST
Stores Auth from LinkedIn
Copy this code into the new application
Procfile: web: python todaynag/manage.py runserver
Check the local server http://127.0.0.1:8000
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25. HEROKU:
DEPLOYED APPLICATION
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26. HEROKU:
NODE.JS
Take an existing app and deploy to Heroku
IODocs: https://github.com/mashery/iodocs
HowTo on PrincessPolymath.com
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27. HEROKU:
QUICK SETUP
% git clone http://github.com/mashery/iodocs.git
% cd iodocs/
% npm install
% echo "web: node app.js" > Procfile
% cp config.json.sample config.json
% git add –f config.json
% heroku create
% heroku addons: add redistogo
% git push heroku master
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28. HEROKU:
IODOCS DEPLOYED
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29. SUM UP
Many cloud providers to choose from
Develop locally, deploy to public facing
cloud
Major languages supported
Hackdays
Quick web apps
Experiments
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30. QUESTIONS?
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