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@jaceklaskowski
jaceklaskowski / deployment-tool-ansible-puppet-chef-salt.md
Last active July 11, 2025 05:01
Choosing a deployment tool - ansible vs puppet vs chef vs salt

Requirements

  • no upfront installation/agents on remote/slave machines - ssh should be enough
  • application components should use third-party software, e.g. HDFS, Spark's cluster, deployed separately
  • configuration templating
  • environment requires/asserts, i.e. we need a JVM in a given version before doing deployment
  • deployment process run from Jenkins

Solution

@pixeltrix
pixeltrix / time_vs_datatime.md
Last active April 23, 2025 13:36
When should you use DateTime and when should you use Time?

When should you use DateTime and when should you use Time?

It's a common misconception that [William Shakespeare][1] and [Miguel de Cervantes][2] died on the same day in history - so much so that UNESCO named April 23 as [World Book Day because of this fact][3]. However because England hadn't yet adopted [Gregorian Calendar Reform][4] (and wouldn't until [1752][5]) their deaths are actually 10 days apart. Since Ruby's Time class implements a [proleptic Gregorian calendar][6] and has no concept of calendar reform then there's no way to express this. This is where DateTime steps in:

>> shakespeare = DateTime.iso8601('1616-04-23', Date::ENGLAND)
=> Tue, 23 Apr 1616 00:00:00 +0000
>> cervantes = DateTime.iso8601('1616-04-23', Date::ITALY)
=> Sat, 23 Apr 1616 00:00:00 +0000
@romainl
romainl / .ctags
Last active September 8, 2024 10:26
My ctags config
--langdef=less
--langmap=less:.less
--regex-less=/^[ \t&]*#([A-Za-z0-9_-]+)/\1/i,id,ids/
--regex-less=/^[ \t&]*\.([A-Za-z0-9_-]+)/\1/c,class,classes/
--regex-less=/^[ \t]*(([A-Za-z0-9_-]+[ \t\n,]+)+)\{/\1/t,tag,tags/
--regex-less=/^[ \t]*@media\s+([A-Za-z0-9_-]+)/\1/m,media,medias/
--regex-less=/^[ \t]*(@[A-Za-z0-9_-]+):/\1/v,variable,variables/
--regex-less=/\/\/[ \t]*(FIXME|TODO)[ \t]*\:*(.*)/\1/T,Tag,Tags/
--langdef=scss
@dhoelzgen
dhoelzgen / base_controller.rb
Last active October 7, 2021 16:19
CORS in Rails 4 APIs
class API::V1::BaseController < ApplicationController
skip_before_filter :verify_authenticity_token
before_filter :cors_preflight_check
after_filter :cors_set_access_control_headers
def cors_set_access_control_headers
headers['Access-Control-Allow-Origin'] = '*'
headers['Access-Control-Allow-Methods'] = 'POST, GET, PUT, DELETE, OPTIONS'
class ActionDispatch::Routing::Mapper
def draw(routes_name)
instance_eval(File.read(Rails.root.join("config/routes/#{routes_name}.rb")))
end
end
BCX::Application.routes.draw do
draw :api
draw :account
draw :session
@sj26
sj26 / example_client.rb
Created December 14, 2011 13:35
HTTParty extensions
class ExampleClient
include HTTParty
extend HTTPExceptions
parser Class.new HTTParty::Parser
parser.send :include, PresentParser
parser.send :include, MashedParser
end