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# Simple, scrappy UDP DNS server in Ruby (with protocol annotations)
# By Peter Cooper
# Ruby 1.8.7/MagLev version by Karl Matthias
#
# MIT license
#
# * Not advised to use in your production environment! ;-)
# * Supports A and CNAME records
# * See http://www.ietf.org/rfc/rfc1035.txt for protocol guidance
# * All records get the same TTL

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class CaptureIO

  # Coffeescript port of: https://gist.github.com/729616
  #
  # Usage:
  #   test = new CaptureIO()
  #   unhook = test.hookStdout((string, encoding, fd) ->
  #     util.debug('stdout: ' + util.inspect(string))
  #   )
  # Restoring stdout:

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Host *
  ServerAliveInterval 10
  ServerAliveCountMax 600

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Helpful Git Commands

These are some useful git commands for implementing this in your own deployment setup.

Detecting if we're running on a clean checkout:

• git fetch
• git diff --shortstat [branch]

Determining if there are pending migrations:

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kmatthias-mbp:dockercon kmatthias$ bundle exec centurion -p test -e production -a deploy
** Invoke environment:production (first_time)
** Invoke environment:common (first_time)
** Execute environment:common
** Execute environment:production
** Invoke deploy (first_time)
** Execute deploy
** Invoke deploy:get_image (first_time)
** Execute deploy:get_image
** Invoke deploy:pull_image (first_time)

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Services Layout

The following code run from inside a Ruby script that has loaded the etcd gem would create the necessary keys to deploy using the above code.

client.set('/services/fooservice/ports/3021', value: 9292)
client.set('/services/fooservice/env/TESTING_URL', value: 'http//foo.example.com/asdf')

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client.set('/services/fooservice/ports/3021', value: 9292)
client.set('/services/fooservice/env/TESTING_URL', value: 'http//foo.com/asdf')

client.set('/services/fooservice/hosts/chi-staging-foo-1.nr-ops.net', value: 'up')
client.set('/services/fooservice/hosts/chi-staging-foo-2.nr-ops.net', value: 'up')
client.set('/services/fooservice/hosts/chi-staging-foo-3.nr-ops.net', value: 'down')

client.set('/services/fooservice/endpoints/chi-staging-foo-1.nr-ops.net', value: 'http://chi-staging-foo-1.nr-ops.net:3021/')
client.set('/services/fooservice/endpoints/chi-staging-foo-2.nr-ops.net', value: 'http://chi-staging-foo-2.nr-ops.net:3021/')
client.set('/services/fooservice/endpoints/chi-staging-foo-3.nr-ops.net', value: 'http://chi-staging-foo-3.nr-ops.net:3021/')

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#!/bin/bash

REPOS=""
for config in `find . -maxdepth 3 -name config | grep '.git'`; do
    egrep "github.com:newrelic|github.com/newrelic" $config > /dev/null
    if [[ $? -eq 0 ]]; then
        repo_dir=`dirname $(dirname ${config})`
        REPOS="${REPOS} `basename ${repo_dir}`"
    fi
done