pedro

Keybase proof

I hereby claim:

• I am pedro on github.
• I am ped (https://keybase.io/ped) on keybase.
• I have a public key whose fingerprint is B3CB A84E 05B4 03FC 2506 BD8F ACF9 8F42 BA4D 4E90

To claim this, I am signing this object:

pedro

module Base
  class Foo
  end
end

module Base
  class A
    def self.test
      puts Foo.object_id # this works
    end

pedro

$LOAD_PATH.unshift File.dirname(__FILE__) + '/../vendor/sinatra/lib'
require 'sinatra'

Sinatra::Application.default_options.merge!(
  :run => false,
  :env => :development # ENV['RACK_ENV']
)
 
require File.dirname(__FILE__) + '/../app/mailer.rb'

pedro

Nike's journey to microservices

• 2011: running activity/service "barely running in production"

  • reliability issues
  • little tests
  • features deployed in months

• 2012: their own backend

  • "deep vertical" stack

• 9 teams on the same codebase supporting 14 products

pedro

Maximizing S3 Peformance

• 137% increase in AWS usage in the last year

• Factors to keep in mind when picking a region

  • Performance: Proximity to users and to other resources in AWS
  • Compliance
  • Cost

• Naming scheme is the most important thing

pedro

Jack White's guacamole recipe

Recently the tour rider for a Jack White performance was made public, and it contained a recipe for guacamole intended to be made for the artist.

Ingredients

• 8x large ripe Haas avocados
• 4x vine-ripened tomatoes (diced)
• ½ yellow onion finely chopped
• 4x Serrano pepper (de-veined and chopped)

pedro

irb(main):018:0> RestClient::VERSION
=> "1.7.3"
irb(main):019:0> RestClient.get("http://test-affinity.herokuapp.com/")
=> "1"
irb(main):020:0> RestClient.get("http://test-affinity.herokuapp.com/").to_i
=> 200
irb(main):021:0> RestClient.get("http://test-affinity.herokuapp.com/").class
 => String
irb(main):022:0> RestClient.get("http://test-affinity.herokuapp.com/") == "1"
=> true

pedro

# used by the R buildpack to install dependencies:
# https://github.com/virtualstaticvoid/heroku-buildpack-r
install.packages("foreach", dependencies = TRUE)
install.packages("doParallel", dependencies = TRUE)

pedro

# same code used in https://gist.github.com/pedro/f931e8cd20b5770b6780
# only using doRedis instead of doParallel
library(foreach)
library(doRedis)

redis_url <- Sys.getenv("REDIS_URL")
host <- gsub("redis://.*@(.+):.*", "\\1", redis_url)
pass <- gsub("redis://.*:(.+)@.*", "\\1", redis_url)
port <- as.integer(gsub(".*:(.*)$", "\\1", redis_url))
registerDoRedis("jobs", host=host, port=port, password=pass)

pedro

# used by the R buildpack to install dependencies:
# https://github.com/virtualstaticvoid/heroku-buildpack-r
install.packages("rredis", dependencies = TRUE)