Building (cloudless) Enterprise Applications with Ruby

Most people working with startups are used to the comfort of working with the cloud. When your product needs to work on-premise, you need a different mindset on the architecture and on the overall decisions you make.

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Presented for the local ruby community in Florianópolis, SC - Brazil.

https://www.meetup.com/rubyfloripa/events/242262291/

Transcript

2. Building C Enterprise Applications R
3. @brodock blog.gabrielmazetto.eti.br Gabriel Mazetto
4. Everyone can contribute
6. But the majority of our clients are on-premise...
7. The Enterprise market is all about supporting ...
8. Forget the simplicity of spinning up a VM at will
9. The Enterprise is all about the baseline
10. Physical machines + Physical disks
11. Your major stakeholder is the IT department
12. Make their lives better and you win big
13. How do I do that?
14. You will probably have to support multiple L D
15. Forget OAuth2! The hot protocols are LDAP and AD
16. B E !
17. Do you really need Ruby 2.4.X or can it be >= 2.2.X ?
18. Do you really need that optional PG extension?
19. Think about progressive enhancement...
20. Re-evaluate your
21. You may not have
22. You may not even have
23. Few strategies...
24. Provide source installation
25. Provide Virtual Machine Images
26. Make every external dependency configurable
27. production: adapter: postgresql encoding: unicode database: gitlabhq_production pool: 10 # username: git # password: # host: localhost # port: 5432
28. development: url: redis://localhost:6379/10 # # url: redis://localhost:6380 # sentinels: # - # host: localhost # port: 26380 # point to sentinel, not to redis port # - # host: slave2 # port: 26380 # point to sentinel, not to redis port
29. Make your application behavior configurable
30. gitlab: ## Web server settings (note: host is the FQDN, do not include http://) host: localhost port: 3000 https: false user: brodock ## Default project features settings default_projects_features: issues: true merge_requests: true wiki: true snippets: true builds: true container_registry: true
31. When your code expects S3 endpoint
32. Rewrite to use fog, or use minio
33. How to protect your source-code?
34. Compile and pack with JRuby
35. Use Ruby-Encoder
36. But the best DRM is a good Contract
37. How we ship?
38. packages.gitlab.com Multiple Distros, Multiple Versions
39. All dependencies in a single package
40. Major release every 22nd
41. Omnibus Chef https://github.com/chef/omnibus
42. name 'ruby' default_version '2.3.5' dependency 'zlib' dependency 'openssl' dependency 'libffi' dependency 'libyaml' dependency 'libiconv' version('2.3.5') { source sha256: '5462f7bbb28beff5da7441968471ed922f964db1abdce82b8860608acc23ddcc' } source url: "https://cache.ruby-lang.org/pub/ruby/#{version.match(/^(\d+\.\d+)/)[0]}/ruby-#{ version}.tar.gz" build do command "./configure" command "make" command "make install" end
43. You can still plug external managed dependencies
44. /etc/gitlab/gitlab.rb
45. Is ruby viable for enterprise? Y , !
46. Q ?