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Rails Engines as a way to Micro Services
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Lucas André de Alencar
September 24, 2016
Programming
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Rails Engines as a way to Micro Services
Talk presented at Rubyconf Brasil 2016
Lucas André de Alencar
September 24, 2016
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Transcript
RAILS ENGINES MICRO SERVICES AS A WAY TO
LUCAS ALENCAR @lucasalencar @alencar.lucas.a @lucasandre
None
None
None
None
MONOLITHIC ARCHITECTURE
LEVEL OF ABSTRACTION WE ARE MAYBE MISSING A
CLASSES METHODS MODULES ????????
CLASSES METHODS MODULES SERVICES
MICRO SERVICES
I HATE DEVOPS!
I’M LAZY…
RAILS ENGINES
MICRO SERVICES STARTS AT CODE
DECOUPLING STARTS AT CODE
RAILS ENGINES ARE NOT MICRO SERVICES
RAILS ENGINES ARE NOT MICRO SERVICES (YET)
IMPROVED Communication Collaboration Creation Maintenance Comprehension
RD STATION EMAIL MARKETING LANDING PAGES SOCIAL MEDIA POSTS MARKETING
BI LEADS MANAGEMENT SEGMENTATION
EMAIL MARKETING LANDING PAGES SOCIAL MEDIA POSTS LEADS MANAGEMENT SEGMENTATION
LEADS IMPORT MARKETING AUTOMATION EMAILS CUSTOM FIELDS SOCIAL MEDIAS DASHBOARD
EMAIL MARKETING LANDING PAGES SOCIAL MEDIA POSTS LEADS MANAGEMENT SEGMENTATION
LEADS IMPORT MARKETING AUTOMATION EMAILS CUSTOM FIELDS SOCIAL MEDIAS DASHBOARD
EMAIL MARKETING LANDING PAGES SOCIAL MEDIA POSTS LEADS MANAGEMENT SEGMENTATION
LEADS IMPORT MARKETING AUTOMATION EMAILS CUSTOM FIELDS SOCIAL MEDIAS DASHBOARD
EMAIL MARKETING LANDING PAGES SOCIAL MEDIA POSTS LEADS MANAGEMENT SEGMENTATION
LEADS IMPORT MARKETING AUTOMATION EMAILS CUSTOM FIELDS SOCIAL MEDIAS DASHBOARD
EMAIL MARKETING LANDING PAGES SOCIAL MEDIA POSTS LEADS MANAGEMENT SEGMENTATION
LEADS IMPORT MARKETING AUTOMATION EMAILS CUSTOM FIELDS SOCIAL MEDIAS DASHBOARD
EMAIL MARKETING LANDING PAGES SOCIAL MEDIA POSTS LEADS MANAGEMENT SEGMENTATION
LEADS IMPORT MARKETING AUTOMATION EMAILS CUSTOM FIELDS SOCIAL MEDIAS DASHBOARD
EMAIL MARKETING LANDING PAGES SOCIAL MEDIA POSTS LEADS MANAGEMENT SEGMENTATION
LEADS IMPORT MARKETING AUTOMATION EMAILS CUSTOM FIELDS SOCIAL MEDIAS DASHBOARD
ARE FREE* RAILS ENGINES * Sort of…
HOW CAN I DO IT?
~/code rails plugin new engines/engineX --mountable create create README.rdoc create
Rakefile create engine_x.gemspec create MIT-LICENSE create .gitignore create Gemfile create app create app/controllers/engine_x/application_controller.rb create app/helpers/engine_x/application_helper.rb create app/mailers create app/models create app/views/layouts/engine_x/application.html.erb create app/assets/images/engine_x create app/assets/images/engine_x/.keep create config/routes.rb create lib/engine_x.rb create lib/tasks/engine_x_tasks.rake
SINGLE REPOSITORY MULTIPLE REPOSITORIES
. ├── app ├── bin ├── config ├── db ├──
engines │ ├── engineX │ ├── engineY │ └── engineZ ├── lib ├── public ├── test └── tmp
1 source 'https://rubygems.org' 2 3 path './engines' do 4 gem
'engineX' 5 gem 'engineY' 6 gem 'engineZ' 7 end 8 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ NORMAL Gemfile
WHY NOT USE OUR GOOD OLD GEMS?
. ├── app ├── config └── engines └── engineX ├──
app │ ├── controllers │ ├── helpers │ ├── models │ └── views ├── config │ └── routes.rb ├── Gemfile └── engine_x.gemspec
WHAT GOES INSIDE AN ENGINE? CODE TESTS DUMMY APP FOR
TESTS (AUTOMATED AND MANUAL) DATA MIGRATIONS ROUTES
1 module EngineX 2 class Engine < ::Rails::Engine 3 isolate_namespace
EngineX 4 end 5 end ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ NORMAL lib/engine_x/engine.rb
1 module EngineX 2 class Engine < ::Rails::Engine 3 isolate_namespace
EngineX 4 end 5 end ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ NORMAL lib/engine_x/engine.rb
1 module EngineX 2 class Engine < ::Rails::Engine 3 isolate_namespace
EngineX 4 end 5 end ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ NORMAL lib/engine_x/engine.rb
1 module EngineX 2 class Engine < ::Rails::Engine 3 isolate_namespace
EngineX 4 end 5 end ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ NORMAL lib/engine_x/engine.rb
AVOID CIRCULAR DEPENDENCIES
MAIN APP ENGINE
MAIN APP ENGINE
MICRO SERVICE? HOW A RAILS ENGINE CAN BECOME A
RD STATION DB EMAIL MARKETING LANDING PAGES
RD STATION DB EMAIL MARKETING LANDING PAGES email_marketing_* landing_pages_*
RD STATION EMAIL MARKETING DB EMAIL MARKETING LANDING PAGES email_marketing_*
landing_pages_* LANDING PAGES DB
WHY SHOULD I USE RAILS ENGINES INSTEAD OF GOING ALL
THE WAY TO MICRO SERVICES ?
WHY SHOULD I USE RAILS ENGINES INSTEAD OF GOING ALL
THE WAY TO MICRO SERVICES ?
RAILS ENGINES MICRO SERVICES AS A WAY TO
Thanks LUCAS ALENCAR we’re hiring! bit.ly/2dofWZj alencar.lucas.a@gmail.com shipit.resultadosdigitais.com.br