` ` Heroku Python: Transitioning a Django Application Richard Tibbetts (@tibbetts) SellerCrowd (@sellercrowd)

`

Heroku Python:Transitioning a Django Application

Richard Tibbetts (@tibbetts)SellerCrowd (@sellercrowd)

`

SellerCrowd – Pseudonymous Q&A

• Social site for salespeople• Built using Python/Django/Tastypie/jQuery

`

SellerCrowd Adoption

• Launched in September, Rapid Adoption

Week 1 Week 2 Week 3 Week 4

`

SellerCrowd Adoption

• Machine resources becoming an issue

`

System Administration Sucks

• I’m a terrible Sysadmin

• Even with Linode, Ubuntu, Chef

• I wish I had Heroku

Thou shalt not covet

thy neighbors scalable

deployment platform

`

What is Heroku?

• Cloud application platform• Originally for Rails applications• Scalability• Lots of add-ons.

`

Heroku Cedar – Polyglot Platform

• Launched Python Sept 28

`

Sign Up

`

Check Your Stack

Heroku SellerCrowdDjangoPostgresGitPipVirtualenvSouth

`

Make a branch and fix things

• git branch heroku

`

Conditional Settings

• No setup.sh on deploy• Change default settings to be heroku settings

`

Virtualenv setup

• Must be in requirements.txt at the root of the git repository

`

Everything in a subdirectory

• All the django app code

mkdir sellercrowdgit mv scsite templates static \ sellercrowd

`

Create Heroku Remote

`

Test on Heroku

• Git push and then it’s all hooks

`

syncdb, migrate, etc

• heroku run python sellercrowd/manage.py syncdb

• heroku run python sellercrowd/manage.py migrate

• heroku run python sellercrowd/manage.py loadavatars

`

Errors on the Website

`

Configuring static content

`

heroku log

`

Success! (blazing-day-9336)

`

Configuring DNS

• Add customdomain addon• CNAME to sellercrowd.herokuapp.com

`

heroku.sellercrowd.com

`

Scale and Add On

`

Heroku Transition Results

• Developer Time: About 5 hours• Remarkably smooth for a first gen platform• Git integration and heroku command line tools

are slick• Next steps:– Performance testing– Queues and workers– Add-ons: Search, logging, monitoring, realtime

`

Plugging SellerCrowd

• Clay Gran, Richard Tibbetts, Ustun Ozgur• Looking for one more team member• Talk to us after