Webdev Week 5

Deployment

Course Announcements

• Deadline to submit Lab 1: Monday at 12pm (noon)
• Programming club - Tuesdays, this room, 6pm
• Please check your grades (see my email) to make sure I have not missed anything

• Rapid development - running code is always the latest
• No configuration - just use a port #

Problem - only works on your computer

• Firewalls, nonstandard port numbers, LAN IP addresses mean this isn't a good way to publish a website.
• Also, what if your laptop isn't turned on/connected to the internet?

Basic server architecture

• Server somewhere connected directly to public Internet. 
• Have to manually configure & update code on server via SSH/FTP, etc.
• Simple, but hard to scale and failure-prone

Cloud-based architecture

Heroku

• One of many available PaaS (Platform as a Service) offerings
• Oriented towards ease-of-use, scalability
• Offers a free plan

Deploying to Heroku

1. Configure your app to use Postgres instead of SQLite
2. Push your code with Git
3. Setup your database on the server with "rake db:migrate"
4. Done!