rushilgupta

INTRO

Concurrency is a domain I have wanted to explore for a long time because the locks and the race conditions have always intimidated me. I recall somebody suggesting concurrency patterns in golang because they said "you share the data and not the variables".

Amused by that, I searched for "concurrency in golang" and bumped into this awesome slide by Rob Pike: https://talks.golang.org/2012/waza.slide#1 which does a great job of explaining channels, concurrency patterns and a mini-architecture of load-balancer (also explains the above one-liner).

Let's dig in:

Goroutines

adamwiggins

Make it real

Ideas are cheap. Make a prototype, sketch a CLI session, draw a wireframe. Discuss around concrete examples, not hand-waving abstractions. Don't say you did something, provide a URL that proves it.

Ship it

Nothing is real until it's being used by a real user. This doesn't mean you make a prototype in the morning and blog about it in the evening. It means you find one person you believe your product will help and try to get them to use it.

Do it with style

mattratleph

vimdiff cheat sheet

##git mergetool

In the middle file (future merged file), you can navigate between conflicts with ]c and [c.

Choose which version you want to keep with :diffget //2 or :diffget //3 (the //2 and //3 are unique identifiers for the target/master copy and the merge/branch copy file names).

:diffupdate (to remove leftover spacing issues)

:only (once you’re done reviewing all conflicts, this shows only the middle/merged file)

dcarley

#!/usr/bin/env ruby

require 'fog'
require 'graphviz'

ec2 = Fog::Compute.new(:provider => 'AWS')
graph = GraphViz::new("structs", "type" => "graph")

groups = ec2.security_groups
group_map = Hash[groups.collect { |g| [g.group_id, g.name] }]

dcarley

source :rubygems

gem 'puppet', '~> 2.6.0'
gem 'facter'
gem 'randexp'

mitchellh

#!/bin/bash
#
# This is the script responsible for updating our Puppet master data,
# which includes modules, manifests, hiera data, etc. All of this data is
# managed in a git repository and upon "deploy" it is synced into the Puppet
# master.
#
# This script mirrors the remote git repository, looking for branches that
# match "env-*" (such as "env-production" or "env-test"). Each of these branches
# is setup as an environment into the Puppet master's data files. The

jordansissel

# Only listen on http; disable ajp and https
web: java -jar jenkins.war --httpPort=$PORT --ajp13Port=-1 --httpsPort=-1

henrik

tmux cheatsheet

As configured in my dotfiles.

start new:

tmux

start new with session name:

aussielunix

*
!/.gitignore
!/*.xml
!/nextBuildNumber

!/jobs
!/jobs/*
!/jobs/*/*.xml
/jobs/*/disk-usage.xml
/jobs/*/builds

myobie

Get Mountain Lion and Homebrew to Be Happy

1) Install XCode 4.4 into /Applications

Get it from the App Store.

2) Install Command Line Tools

In XCode's Preferences > Downloads you can install command line tools.