The Life and Death of a Rails App

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The Life & Death of a Rails App

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SPOILER

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We are all going to die.

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404

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The Life and Death of a Rails App Olivier

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Birth

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Late 2010 Orlando, Florida

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$ rails new app

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$ rails new app\ -d postgresql --skip-test-unit --skip-spring --skip-javascript

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2f0e7c9f1c 2010-12-22 Initial Commit. [Andrew Smith]

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Jan 2012 Orlando, Florida

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53ff7c4bab 2012-01-19 Specifying that group subscriptions are per seat. [Olivier Lacan]

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4a59521d5e 2013-05-24 I'm a fucking idiot. [Olivier Lacan]

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Barriers to Entry

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audience * ) timing + content (

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$ git push heroku master

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gem "this" gem "that" gem "also_this" gem "why_not" gem "all_the_things" gem "omfg"

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Dependencies Software

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Dependencies Human

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Adolescence

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"Let's do Ops to save money!"

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Opportunity Cost noun Economics the loss of potential gain from other alternatives when one alternative is chosen.

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Heroku In-house $5,000/month $3,000/month + payroll + vacation + security + upgrades + turnover = /month

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Not Invented Here

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"GitHub made their own support app!"

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"Why shouldn't we..."

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"We're special too, right?"

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(wrong)

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Users Authorization Admin Jobs Billing Servers Security Browsers Database Emails Etc.

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$ rails new tool $ rails new other_tool $ rails new best_tool $ rails new micro_service $ rails new macro_service $ mix phx.new ruby_3x3 $ express async_all_the_things

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Security upgrades Ruby upgrades Rails upgrades Documentation ) ( x 103

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require "active_model/railtie" require "active_job/railtie" # require "active_record/railtie" require "action_controller/railtie" require "action_mailer/railtie" require "action_view/railtie" require "action_cable/engine" require "sprockets/railtie" require "rails/test_unit/railtie"

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Justify our Difference

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$ hanami new so_fresh_so_clean $ dry-web-roda new dry_FTW

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Rails Freedom

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Easy Simple

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Big Small

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Yes Maybe

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Rails is a siphon for good ideas.

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Rails Ruby on

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cross-pollination ✨ ✨

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Data Mapper CarrierWave Capybara Sequel Sidekiq RSpec

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ActiveRecord ActiveStorage System Tests Arel ActiveJob MiniTest::Spec

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Architecture

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app/ vs lib/ 2010

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app/models vs app/services 2013

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Rails and SOA: Do I really need   to have this big app? December 26, 2013 Developing complex web applications (not particularly Rails apps) is a tricky task. You write your models, controllers, services and optimize application architecture iteratively. But even with the great architecture when your application starts to be huge, bad things happen. Every little feature you’ll add will cost you precious time - tests must pass on your CI and workers needs to be reloaded every time you deploy. In addition, you begin to realize that mental overhead with keeping modules separated is huge - you have to remember a lot of things to keep it in right fashion. Ultimately, working on a project is hard, TDD technique is inefficient to use and you’re not happy at all with your code.

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SOA

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Service-oriented Architecture

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Business activity with outcome.  Self-contained.  Black box for consumers.  May consist of other underlying services.

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Local complexity vs. Perpetual inconsistency

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Localized SOA

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app/models + app/services

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User.create + CreateUser.new

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CreateUser SubscribeUser ChargeSubscription

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Unexpected Paths

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CreateUser ChargeSubscription SubscribeUser

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Charge.create User.create Subscription.create CreateUser ChargeSubscription SubscribeUser

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“What if…”

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Adulthood

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Experiment Side-project Product

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(In)stability Teammate

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Ownership Lack of

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Diversity

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Immunity

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Distrust  the Process

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Beware of Bibles

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“During the gold rush its a good time to be in the pick and shovel business” Probably Not Mark Twain

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Shovel-as-a-Service

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Use Make vs.

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Scalability

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504

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HTTP Status 504 The server, while acting as a gateway or proxy, did not receive a timely response from an upstream server it needed to access in order to complete the request.

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whoops

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Rails can scale.

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JavaScript however...

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(okay, my JavaScript)

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Performance is hard work.

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People are even harder work.

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Devalue Code Overvalue People

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Software Developer Bulldozer

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Security

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“Who has credentials for the MailChimp account?”

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“Peter, he left the company two months ago.”

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Hey! Thank you for the message As I said I have found several SERIOUS security vulnerabilities; so I want to ask you if you can make a "team" on hackerone.com . It's a platform where security researchers report vulnerabilities to company.

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Bug Bounty Security Program

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Researcher Reputation Reward Guidance Attract White Hats +

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Security through "lalala not listening" is not security.

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Privacy

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G.D.P.R.

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General Data Protection Regulation

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How GDPR Will Change   The Way You Develop Europe’s imminent privacy overhaul means that we all have to become more diligent about what data we collect, how we collect it, and what we do with it. In our turbulent times, these privacy obligations are about ethics as well as law. Web developers have a major role to play here. After all, healthy data protection practice is as much about the development side — code, data, and security — as it is about the business side of process, information, and strategy.

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P.I.I

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Personally identifiable information Personal information, described in United States legal fields as either personally identifiable information (PII), or sensitive personal information (SPI), as used in information security and privacy laws, is information that can be used on its own or with other information to identify, contact, or locate a single person, or to identify an individual in context.

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According to the European Commission, "personal data is any information relating to an individual, whether it relates to his or her private, professional or public life. It can be anything from a name, a home address, a photo, an email address, bank details, posts on social networking websites, medical information, or a computer’s IP address."

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Devise Rails

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•Trackable: tracks sign in count, timestamps and IP address.

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create_table "users", force: :cascade do |t| t.text "name" t.string "email" t.datetime "created_at" t.datetime "updated_at" t.datetime "current_sign_in_at" t.datetime "last_sign_in_at" t.string "country_code" t.string "current_sign_in_ip" t.string "encrypted_password" t.string "last_sign_in_ip" end

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Are you GDRP- compliant?

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https://www.reddit.com/r/rails/comments/885ufz/gdpr_rails_are_you_doing_anything_to_prepare/

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Who owns user data?

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Where does the data go when it's over?

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Retirement

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Three years later…

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Death

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The sun comes back after a sunset.

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Startup

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Emotional honesty

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We are shutting Code School down forever.

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It fucking hurts.

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Its spirit lives on in Pluralsight. But it still hurts.

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20%

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2011 - 2018 Code School

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Post-Mortem

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Are legacy apps our legacy?

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No.

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It's people.

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Ditch Toxic People

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Nurture Good People

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Share Ownership

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The product.

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Get Involved

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Accept Mortality

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The ideas.

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Share Healthy Habits

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Focus on Joy

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Learn by Doing

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Just in Time Learning

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Merci.

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@olivierlacan

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Questions? Come chat in the hall.