Heroku
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Heroku is a cloud-based hosting platform for Ruby on Rails applications. It allows developers to deploy their Rails apps through Git and manage hosting without having to deal with servers. Developers can run rake tasks, access the application console, interact with databases, add gems, and scale dynos and workers as needed when traffic increases. Heroku also offers add-ons for services like databases, email delivery, search, and caching.
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Heroku
- 2. WHAT IS HEROKU? ➡ hosting ➡ ruby on rails applications ➡ cloud based services ➡ deployment through git ➡ heroku gem
- 3. WHY USE HEROKU? ➡ forget about servers ➡ only care about your app ➡ only pay when it booms
- 4. RAKE ON HEROKU ➡ run your custom rake tasks
- 5. CONSOLE ON HEROKU ➡ debug your online application
- 6. DB INTERACTION ➡ do your migrations ➡ push local DB to remote DB ➡ pull remote DB to local DB
- 7. GEMS ON HEROKU ➡ add to .gems file ➡ installed on deploy/push
- 8. DYNOS ON HEROKU ➡ individual web server instance ➡ thin server ➡ runs on separate machine
- 9. WORKERS ON HEROKU ➡ delay job framework ➡ background tasks ➡ 1 delay job at a time ➡ increase/decrease with slider
- 10. WHEN YOUR APP BOOMS ➡ add dynos ➡ add workers ➡ change plan
- 11. RAILS 3 ON HEROKU ➡ currently in beta mode ➡ last stable rails version
- 12. ADD-ONS ON HEROKU ➡ amazon RDS ➡ bundles ➡ sendgrid ➡ custom domains ➡ websolr ➡ cron ➡ ssl ➡ deploy hooks ➡ memcached (beta) ➡ exceptional ➡ zerigo dns ➡ new relic ➡ amqp (beta)
- 13. PROBLEMS ON HEROKU ➡ first request can be slow ➡ no read write access
- 14. APPS ON HEROKU ➡ shopify.com ➡ scrumninja.com ➡ flightcaster.com
- 15. DEMO
- 16. PICTURES BY... ➡ slide 1: flickr.com/lonesome_cycler ➡ slide 9: flickr.com/squeaks2569 ➡ slide 2: flickr.com/oberazzi ➡ slide 10: flickr.com/micurs ➡ slide 3: flickr.com/soldiersmediacenter ➡ slide 11: flickr.com/neilsingapore ➡ slide 4: flickr.com/mikefink ➡ slide 12: flickr.com/allyzally ➡ slide 5: flickr.com/wwward0 ➡ slide 13: flickr.com/saturnine ➡ slide 6: flickr.com/adesigna ➡ slide 14: flickr.com/istorija ➡ slide 7: flickr.com/spyker3292 ➡ slide 15: flickr.com/jgarber ➡ slide 8: flickr.com/slworking ➡ slide 16: flickr.com/digital1
Editor's Notes
- one machine goes down the other stays up
- don't do heavy calculations in your web process instead let a background process do the job use background jobs when request run longer than 500ms fetching data from remote APIs, reading RSS feeds, resizing images, and uploading data to S3
- beta testers are currently testing the rails 3 implementation on heroku heroku makes sure you can always use the last stable rails version
- unless you purchased something on heroku you can use amazon service for this