1. Migration big RoR app
From dedicated server to Cloud
Part 1
Marcin Prokop

2. Background
- ongoing Ruby on Rails application with a huge technical debt
- based on many services like Sidekiq, Postfix, MySQL, Passenger, Nginx,
Sphinx
- and everything hosted in one instance
https://tomgoodfellow.typepad.com
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3. Old architecture (one instance)
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4. Everything was working well
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5. Low costs of the infrastructure
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6. Sounds cool doesn't it?
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7. Not really...
- the solution is not reliable and requires monitoring and maintenance
- no backups for storage, config files
- no portability
- installing new libs was painful
- at the company, we don’t deal with the server management
- no documentation from the previous developers
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8. The solution is...
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11. How?
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12. Our approach
Study Plan Execute
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13. Study part
This is time for:
● researching
● prototyping
● brainstorming
● pointing potential risks
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14. Don't be afraid to ask questions/consult
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15. Plan part
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16. Execute part
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17. In general, the migration process was slow
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but we succeeded without any major mistakes.

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Thank you!
Next talk: Migrate Postfix to AWS SES with Lambda
Questions?