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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
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SellerCrowd Adoption
• Launched in September, Rapid Adoption
Week 1
Week 2
Week 3
Week 4
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SellerCrowd Adoption
• Machine resources becoming an issue
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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
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What is Heroku?
•
•
•
•
Cloud application platform
Originally for Rails applications
Scalability
Lots of add-ons.
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Heroku Cedar – Polyglot Platform
• Launched Python Sept 28
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Sign Up
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Check Your Stack
Heroku
SellerCrowd
Django
Postgres
Git
Pip
Virtualenv
South
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Make a branch and fix things
• git branch heroku
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Conditional Settings
• No setup.sh on deploy
• Change default settings to be heroku settings
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Virtualenv setup
• Must be in requirements.txt at the root of the
git repository
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Everything in a subdirectory
• All the django app code
mkdir sellercrowd
git mv scsite templates static \
sellercrowd
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Create Heroku Remote
`
Test on Heroku
• Git push and then it’s all hooks
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syncdb, migrate, etc
• heroku run python
sellercrowd/manage.py syncdb
• heroku run python
sellercrowd/manage.py migrate
• heroku run python
sellercrowd/manage.py loadavatars
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Errors on the Website
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Configuring static content
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heroku log
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Success! (blazing-day-9336)
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Configuring DNS
• Add customdomain addon
• CNAME to sellercrowd.herokuapp.com
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heroku.sellercrowd.com
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Scale and Add On
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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
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Plugging SellerCrowd
• Clay Gran, Richard Tibbetts, Ustun Ozgur
• Looking for one more team member
• Talk to us after
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