hosh

hhh@sparkfly-rails3 ~/work/sparkfly/benchmarks/metaprogramming $ uname -a
Linux sparkfly-rails3 2.6.31-gentoo-r10 #1 SMP Fri Mar 26 23:55:26 Local time zone must be set--see zic  x86_64 Intel(R) Core(TM)2 Duo CPU P8800 @ 2.66GHz GenuineIntel GNU/Linux
hhh@sparkfly-rails3 ~/work/sparkfly/benchmarks/metaprogramming $ ruby -v
ruby 1.8.7 (2010-01-10 patchlevel 249) [x86_64-linux]
hhh@sparkfly-rails3 ~/work/sparkfly/benchmarks/metaprogramming $ ruby bench_meta.rb 
                            user     system      total        real
instance_eval/str      68.230000   0.070000  68.300000 ( 88.718078)
class_eval/str         69.370000   0.050000  69.420000 ( 93.801272)
eval/str               70.800000   0.020000  70.820000 (100.582867)
define_method/class    48.570000   0.100000  48.670000 ( 65.632684)

hosh

# NOOP
#
# Place in RAILS_ROOT/lib/csv.rb
#
# Short Description: I dare you to remove this file.
#
# Long Description:
# This file is needed so that active_record/fixtures.rb (for AR3) can load 'csv' library. Since this file
# comes before the standard library load path, this gets loaded instead. Otherwise, Ruby will
# complain because FasterCSV has changed the class signature of CSV::Row

hosh

#http://eggsonbread.com/2010/03/28/my-rspec-best-practices-and-tips/
describe User do
  subject { user }
  let(:user) { User.new }

  context "when name empty" do
    it { should_not be_valid }
    specify { user.save.should be_false }
  end

hosh

# Ugly hack until PostgreSQL 9.1 comes out.
module Models
  module GroupByHelper
    extend ActiveSupport::Concern

    included do
      scope :group_by_all, lambda { group(self.column_names.map { |c| "#{self.table_name}.#{c}" }.join(',')) }
    end
  end
end

hosh

def explain!
  puts 'Want to embed this Gist?'
  puts 'Use this: <script src="http://gist.github.com/2059.js"></script>'
end

explain!

hosh

Devops is for people who want to get their product out to their customers.

Devops is...

  1. Software Eats Infrastructure.
     http://online.wsj.com/article/SB10001424053111903480904576512250915629460.html

  2. Disposable Resources.

hosh

# Add this snippet at the bottom of your Gemfile
# This allows you to add gems for debugging that you may not want to
# version.

# If you want to load debugging tools into the bundle exec sandbox,
# add these additional dependencies into Gemfile.local
eval(IO.read(__FILE__ + '.local'), binding) if File.exists?(__FILE__ + '.local')

hosh

Migrating from Chef 10 to Chef 11

Strategy

We stand up a new Chef 11 server. We then download all the artifacts and data from Chef 10 using knife download, and then upload them to the Chef 11 server using knife upload. Since the data is saved into a repo before uploading, we can verify the data and modify it as needed.


Considerations

Chef 10 uses CouchDB. Chef 11 uses PostgreSQL. There are also changes in the underlying data. However, the data from the API are communicated in JSON and knife knows how to handle the differences between Chef 10 and 11. `knife upload` and `knife download` in knife-essentials will take us most of the way there.

hosh

-- Copyright 2013 Opscode, Inc. All Rights Reserved.
--
-- This file is provided to you under the Apache License,
-- Version 2.0 (the "License"); you may not use this file
-- except in compliance with the License.  You may obtain
-- a copy of the License at
--
--   http://www.apache.org/licenses/LICENSE-2.0
--
-- Unless required by applicable law or agreed to in writing,

hosh

Failures:

  1) Search API endpoint /search/node POST targeted toward many nodes with body of {"possibly_nested"=>["top", "middle", "bottom"], "the_name"=>["name"], "not_found"=>["foo", "bar", "baz", "totally_not
_a_real_field"], "empty"=>[]} should succeed, and return multiple nodes
     Failure/Error: r.should look_like search_success_response

       Expected a full match of the result

         {"total"=>4,
        "start"=>0,