Learn how to easily get started on cloud computing with fog. If you can control your infrastructure choices, you’ll make better choices in development and get what you need in production. You'll get an overview of fog and concrete examples to give you a head start on your provisioning workflow.

1. OR:
fog
HOW I
LEARNED
TO STOP
WORRYING
AND
LOVE THE
CLOUD

2. geemus (Wesley Beary)
web: github.com/geemus
twitter: @geemus

3. employer and sponsor
web: engineyard.com
twitter: @engineyard

4. API driven on demand services
CLOUD core: compute, dns, storage
also: kvs, load balance, ...

5. What?

6. What?
on demand - only pay for what you actually use

7. What?
on demand - only pay for what you actually use
flexible - add and remove resources in minutes (instead of weeks)

8. What?
on demand - only pay for what you actually use
flexible - add and remove resources in minutes (instead of weeks)
repeatable - code, test, repeat

9. What?
on demand - only pay for what you actually use
flexible - add and remove resources in minutes (instead of weeks)
repeatable - code, test, repeat
resilient - build better systems with transient resources

10. Why Worry?

11. Why Worry?
option overload - which provider/service should I use

12. Why Worry?
option overload - which provider/service should I use
expertise - each service has yet another knowledge silo

13. Why Worry?
option overload - which provider/service should I use
expertise - each service has yet another knowledge silo
tools - vastly different API, quality, maintenance, etc

14. Why Worry?
option overload - which provider/service should I use
expertise - each service has yet another knowledge silo
tools - vastly different API, quality, maintenance, etc
standards - slow progress and differing interpretations

15. Ruby cloud services
web: github.com/geemus/fog
twitter: @fog

16. Why?

17. Why?
portable - AWS, Bluebox, Brightbox, Google, Rackspace, Slicehost, Terremark, ...

18. Why?
portable - AWS, Bluebox, Brightbox, Google, Rackspace, Slicehost, Terremark, ...
powerful - compute, dns, storage, collections, models, mocks, requests, ...

19. Why?
portable - AWS, Bluebox, Brightbox, Google, Rackspace, Slicehost, Terremark, ...
powerful - compute, dns, storage, collections, models, mocks, requests, ...
established - 92k downloads, 1112 followers, 141 forks, 67 contributors, me, ...

20. Why?
portable - AWS, Bluebox, Brightbox, Google, Rackspace, Slicehost, Terremark, ...
powerful - compute, dns, storage, collections, models, mocks, requests, ...
established - 92k downloads, 1112 followers, 141 forks, 67 contributors, me, ...
Fog.mock! - faster, cheaper, simulated cloud behavior

21. Who?

22. Who?
libraries - carrierwave, chef, deckard, gaff, gemcutter, ...
products - DevStructure, Engine Yard, iSwifter, OpenFeint, RowFeeder, ...

23. Interactive Bit!

24. Interactive Bit!
cloud

25. Interactive Bit!
cloud
fog

26. What?

27. What?
That’s great and all but I don’t have a use case...

28. What?
That’s great and all but I don’t have a use case...
uptime - because who wants a busted web site?

29. Setup
geymus ~ ⌘ gem install fog
or
geymus ~ ⌘ sudo gem install fog

30. Get Connected
7 # setup a connection to the service
8 compute = Fog::Compute.new(credentials)

31. Get Connected
1 credentials = {
2 :provider => 'Rackspace',
3 :rackspace_api_key => RACKSPACE_API_KEY,
4 :rackspace_username => RACKSPACE_USERNAME
5 }
6
7 # setup a connection to the service
8 compute = Fog::Compute.new(credentials)

32. Boot that Server
1 server_data = compute.create_server(
2 1,
3 49
4 ).body['server']
5

33. Boot that Server
1 server_data = compute.create_server(
2 1,
3 49
4 ).body['server']
5
6 until compute.get_server_details(
7 server_data['id']
8 ).body['server']['status'] == 'ACTIVE'
9 end
10

34. Boot that Server
1 server_data = compute.create_server(
2 1,
3 49
4 ).body['server']
5
6 until compute.get_server_details(
7 server_data['id']
8 ).body['server']['status'] == 'ACTIVE'
9 end
10
11 commands = [
12 %{'mkdir .ssh'},
13 %{'echo #{File.read('~/.ssh/id_rsa.pub')} >> ~/.ssh/authorized_keys'},
14 %{passwd -l root},
15 ]
16
17 Net::SSH.start(
18 server_data['addresses'].first,
19 'root',
20 :password => server_data['password']
21 ) do |ssh|
22 commands.each do |command|
23 ssh.open_channel do |ssh_channel|
24 ssh_channel.request_pty
25 ssh_channel.exec(%{bash -lc '#{command}'})
26 ssh.loop
27 end
28 end
29 end

35. Worry!

36. Worry!
arguments - what goes where, what does it mean?

37. Worry!
arguments - what goes where, what does it mean?
portability - most of this will only work on Rackspace

38. Worry!
arguments - what goes where, what does it mean?
portability - most of this will only work on Rackspace
disservice - back to square one, but with tools in hand

39. Bootstrap
7 # boot server and setup ssh keys
8 server = compute.servers.bootstrap(server_attributes)

40. Bootstrap
1 server_attributes = {
2 :image_id => '49',
3 :private_key_path => PRIVATE_KEY_PATH,
4 :public_key_path => PUBLIC_KEY_PATH
5 }
6
7 # boot server and setup ssh keys
8 server = compute.servers.bootstrap(server_attributes)

41. Servers?

42. Servers?
1 compute.servers # list servers, same as #all

43. Servers?
1 compute.servers # list servers, same as #all
2
3 compute.servers.get(1234567890) # server by id

44. Servers?
1 compute.servers # list servers, same as #all
2
3 compute.servers.get(1234567890) # server by id
4
5 compute.servers.reload # update to latest

45. Servers?
1 compute.servers # list servers, same as #all
2
3 compute.servers.get(1234567890) # server by id
4
5 compute.servers.reload # update to latest
6
7 compute.servers.new(attributes) # local model

46. Servers?
1 compute.servers # list servers, same as #all
2
3 compute.servers.get(1234567890) # server by id
4
5 compute.servers.reload # update to latest
6
7 compute.servers.new(attributes) # local model
8
9 compute.servers.create(attributes) # remote model

47. ping

48. ping
1 # ping target 10 times
2 ssh_results = server.ssh("ping -c 10 #{target}")

49. ping
1 # ping target 10 times
2 ssh_results = server.ssh("ping -c 10 #{target}")
3 stdout = ssh_results.first.stdout

50. ping
1 # ping target 10 times
2 ssh_results = server.ssh("ping -c 10 #{target}")
3 stdout = ssh_results.first.stdout
4
5 # parse result, last line is summary
6 # round-trip min/avg/max/stddev = A.A/B.B/C.C/D.D ms

51. ping
1 # ping target 10 times
2 ssh_results = server.ssh("ping -c 10 #{target}")
3 stdout = ssh_results.first.stdout
4
5 # parse result, last line is summary
6 # round-trip min/avg/max/stddev = A.A/B.B/C.C/D.D ms
7 stats = stdout.split("/n").last.split(' ')[-2]
8 min, avg, max, stddev = stats.split('/')

52. ping
1 # ping target 10 times
2 ssh_results = server.ssh("ping -c 10 #{target}")
3 stdout = ssh_results.first.stdout
4
5 # parse result, last line is summary
6 # round-trip min/avg/max/stddev = A.A/B.B/C.C/D.D ms
7 stats = stdout.split("/n").last.split(' ')[-2]
8 min, avg, max, stddev = stats.split('/')
NOTE: most complex code was string parsing!?!

53. cleanup

54. cleanup
1 # shutdown the server
2 server.destroy

55. cleanup
1 # shutdown the server
2 server.destroy
3
4 # return the data as a hash
5 {
6 :min => min,
7 :avg => avg,
8 :max => max,
9 :stddev => stddev
10 }

56. Next!

57. Next!
1 -server_data = compute.create_server(
2 +compute.import_key_pair(
3 + 'id_rsa.pub',
4 + File.read('~/.ssh/id_rsa.pub')
5 +)
6 +
7 +compute.authorize_security_group_ingress(
8 + 'CidrIp' => '0.0.0.0/0',
9 + 'FromPort' => 22,
10 + 'IpProtocol' => 'tcp',
11 + 'GroupName' => 'default',
12 + 'ToPort' => 22
13 +)
14 +
15 +server_data = compute.run_instances(
16 + 'ami-1a837773',
17 1,
18 - 49
19 -).body['server']
20 + 1,
21 + 'InstanceType' => 'm1.small',
22 + 'KeyName' => 'id_rsa.pub',
23 + 'SecurityGroup' => 'default'
24 +).body['instancesSet'].first
25
26 -until compute.get_server_details(
27 - server_data['id']
28 -).body['server']['status'] == 'ACTIVE'
29 +until compute.describe_instances(
30 + 'instance-id' => server_data['instanceId']
31 +).body['reservationSet'].first['instancesSet'].first['instanceState']['name'] == 'running'
32 end
33
34 +sleep(300)
35 +
36 Net::SSH.start(
37 - server_data['addresses'].first,
38 - 'root',
39 - :password => server_data['password']
40 + server_data['ipAddress'],
41 + 'ubuntu',
42 + :key_data => [File.read('~/.ssh/id_rsa')]
43 ) do |ssh|
44 commands = [
45 %{'mkdir .ssh'},

58. Next!
1 -server_data = compute.create_server(
2 +compute.import_key_pair(
3 + 'id_rsa.pub',
4 + File.read('~/.ssh/id_rsa.pub')
5 +)
6 +
7 +compute.authorize_security_group_ingress(
8 + 'CidrIp' => '0.0.0.0/0',
9 + 'FromPort' => 22,
10 + 'IpProtocol' => 'tcp',
11 + 'GroupName' => 'default',
12 + 'ToPort' => 22
13 +)
14 +
15 +server_data = compute.run_instances(
16 + 'ami-1a837773',
17 1,
18 - 49
19 -).body['server']
20 + 1,
21 + 'InstanceType' => 'm1.small',
22 + 'KeyName' => 'id_rsa.pub',
23 + 'SecurityGroup' => 'default'
24 +).body['instancesSet'].first
25
26 -until compute.get_server_details(
27 - server_data['id']
28 -).body['server']['status'] == 'ACTIVE'
29 +until compute.describe_instances(
30 + 'instance-id' => server_data['instanceId']
31 +).body['reservationSet'].first['instancesSet'].first['instanceState']['name'] == 'running'
32 end
33
34 +sleep(300)
35 +
36 Net::SSH.start(
37 - server_data['addresses'].first,
38 - 'root',
39 - :password => server_data['password']
40 + server_data['ipAddress'],
41 + 'ubuntu',
42 + :key_data => [File.read('~/.ssh/id_rsa')]
43 ) do |ssh|
44 commands = [
45 %{'mkdir .ssh'},

59. geopinging v1
1 # specify a different provider
2 credentials = {
3 :provider => 'AWS',
4 :aws_access_key_id => AWS_ACCESS_KEY_ID,
5 :aws_secret_access_key => AWS_SECRET_ACCESS_KEY
6 }
7
8 server_attributes = {
9 :image_id => 'ami-1a837773',
10 :private_key_path => PRIVATE_KEY_PATH,
11 :public_key_path => PUBLIC_KEY_PATH,
12 :username => 'ubuntu'
13 }

60. geopinging v2
1 # specify a different aws region
2 # ['ap-southeast-1', 'eu-west-1', 'us-west-1]
3 credentials.merge!({
4 :region => 'eu-west-1'
5 })

61. geopinging v...
portable - AWS, Bluebox, Brightbox, Rackspace, Slicehost, Terremark, ...

62. geopinging v...
portable - AWS, Bluebox, Brightbox, Rackspace, Slicehost, Terremark, ...
lather, rinse, repeat

63. How?
That is awesome, but how did you...

64. exploring
geymus ~ ⌘ fog
To run as 'default', add the following to ~/.fog
:default:
:aws_access_key_id: INTENTIONALLY_LEFT_BLANK
:aws_secret_access_key: INTENTIONALLY_LEFT_BLANK
:public_key_path: INTENTIONALLY_LEFT_BLANK
:private_key_path: INTENTIONALLY_LEFT_BLANK
:rackspace_api_key: INTENTIONALLY_LEFT_BLANK
:rackspace_username: INTENTIONALLY_LEFT_BLANK
...

65. sign posts

66. sign posts
geymus ~ ⌘ fog

67. sign posts
geymus ~ ⌘ fog
Welcome to fog interactive!
:default credentials provide AWS and Rackspace

68. sign posts
geymus ~ ⌘ fog
Welcome to fog interactive!
:default credentials provide AWS and Rackspace
>> providers

69. sign posts
geymus ~ ⌘ fog
Welcome to fog interactive!
:default credentials provide AWS and Rackspace
>> providers
[AWS, Rackspace]

70. sign posts
geymus ~ ⌘ fog
Welcome to fog interactive!
:default credentials provide AWS and Rackspace
>> providers
[AWS, Rackspace]
>> Rackspace.collections

71. sign posts
geymus ~ ⌘ fog
Welcome to fog interactive!
:default credentials provide AWS and Rackspace
>> providers
[AWS, Rackspace]
>> Rackspace.collections
[:directories, :files, :flavors, :images, :servers]

72. sign posts
geymus ~ ⌘ fog
Welcome to fog interactive!
:default credentials provide AWS and Rackspace
>> providers
[AWS, Rackspace]
>> Rackspace.collections
[:directories, :files, :flavors, :images, :servers]
>> Rackspace[:compute]

73. sign posts
geymus ~ ⌘ fog
Welcome to fog interactive!
:default credentials provide AWS and Rackspace
>> providers
[AWS, Rackspace]
>> Rackspace.collections
[:directories, :files, :flavors, :images, :servers]
>> Rackspace[:compute]
#<Fog::Rackspace::Compute ...>

74. sign posts
geymus ~ ⌘ fog
Welcome to fog interactive!
:default credentials provide AWS and Rackspace
>> providers
[AWS, Rackspace]
>> Rackspace.collections
[:directories, :files, :flavors, :images, :servers]
>> Rackspace[:compute]
#<Fog::Rackspace::Compute ...>
>> Rackspace[:compute].requests

75. sign posts
geymus ~ ⌘ fog
Welcome to fog interactive!
:default credentials provide AWS and Rackspace
>> providers
[AWS, Rackspace]
>> Rackspace.collections
[:directories, :files, :flavors, :images, :servers]
>> Rackspace[:compute]
#<Fog::Rackspace::Compute ...>
>> Rackspace[:compute].requests
[:confirm_resized_server, ..., :update_server]

76. what are those?

77. what are those?
provider => [AWS, Rackspace, Zerigo, ...]

78. what are those?
provider => [AWS, Rackspace, Zerigo, ...]
service => [Compute, DNS, Storage, ...]

79. what are those?
provider => [AWS, Rackspace, Zerigo, ...]
service => [Compute, DNS, Storage, ...]
collection => [flavors, images, servers, ...]

80. what are those?
provider => [AWS, Rackspace, Zerigo, ...]
service => [Compute, DNS, Storage, ...]
collection => [flavors, images, servers, ...]
model => [flavor, image, server, ...]

81. what are those?
provider => [AWS, Rackspace, Zerigo, ...]
service => [Compute, DNS, Storage, ...]
collection => [flavors, images, servers, ...]
model => [flavor, image, server, ...]
request => [describe_instances, run_instances, ...]

82. requests?

83. requests?
>> Rackspace[:compute].list_servers

84. requests?
>> Rackspace[:compute].list_servers
#<Excon::Response:0x________

85. requests?
>> Rackspace[:compute].list_servers
#<Excon::Response:0x________
@body = {
"servers" => []
},

86. requests?
>> Rackspace[:compute].list_servers
#<Excon::Response:0x________
@body = {
"servers" => []
},
@headers = {
"X-PURGE-KEY"=>"/______/servers",
...,
"Connection"=>"keep-alive"
},

87. requests?
>> Rackspace[:compute].list_servers
#<Excon::Response:0x________
@body = {
"servers" => []
},
@headers = {
"X-PURGE-KEY"=>"/______/servers",
...,
"Connection"=>"keep-alive"
},
@status=200>

88. sanity check

89. sanity check
>> Rackspace.servers.select {|server| server.ready?}

90. sanity check
>> Rackspace.servers.select {|server| server.ready?}
<Fog::Rackspace::Compute::Servers
filters={}
[]
>

91. sanity check
>> Rackspace.servers.select {|server| server.ready?}
<Fog::Rackspace::Compute::Servers
filters={}
[]
>
>> AWS.servers.select {|server| server.ready?}

92. sanity check
>> Rackspace.servers.select {|server| server.ready?}
<Fog::Rackspace::Compute::Servers
filters={}
[]
>
>> AWS.servers.select {|server| server.ready?}
<Fog::AWS::Compute::Servers
[]
>

93. sanity check
>> Rackspace.servers.select {|server| server.ready?}
<Fog::Rackspace::Compute::Servers
filters={}
[]
>
>> AWS.servers.select {|server| server.ready?}
<Fog::AWS::Compute::Servers
[]
>
>> exit

94. finding images

95. finding images
>> Rackspace.images.table([:id, :name])

96. finding images
>> Rackspace.images.table([:id, :name])
+---------
+------------------------------------------+
| id | name |
+---------
+------------------------------------------+
| 49 | Ubuntu 10.04 LTS (lucid) |
+---------
+------------------------------------------+
...

97. finding images
>> Rackspace.images.table([:id, :name])
+---------
+------------------------------------------+
| id | name |
+---------
+------------------------------------------+
| 49 | Ubuntu 10.04 LTS (lucid) |
+---------
+------------------------------------------+
...
>> AWS.images # I use alestic.com listing

98. finding images
>> Rackspace.images.table([:id, :name])
+---------
+------------------------------------------+
| id | name |
+---------
+------------------------------------------+
| 49 | Ubuntu 10.04 LTS (lucid) |
+---------
+------------------------------------------+
...
>> AWS.images # I use alestic.com listing
...

99. exploring...

100. exploring...
It takes forever!

101. exploring...
It takes forever!
It’s so expensive!

102. exploring...
It takes forever!
It’s so expensive!
A warm welcome for Fog.mock!

103. Mocks!
geymus ~ ⌘ FOG_MOCK=true fog
or
require ‘fog’
Fog.mock!

104. simulation

105. simulation
Most functions just work!

106. simulation
Most functions just work!
Unimplemented mocks? Errors keep you on track.

107. simulation
Most functions just work!
Unimplemented mocks? Errors keep you on track.
Tests run against both, so it is either consistent or a bug.

108. Back to Business
I have a bunch of data now what?

109. Back to Business
I have a bunch of data now what?
storage - aggregating cloud data

110. Get Connected
7 # setup a connection to the service
8 storage = Fog::Storage.new(credentials)

111. Get Connected
1 credentials = {
2 :provider => 'AWS',
3 :aws_access_key_id => AWS_ACCESS_KEY_ID,
4 :aws_secret_access_key => AWS_SECRET_ACCESS_KEY
5 }
6
7 # setup a connection to the service
8 storage = Fog::Storage.new(credentials)

112. directories
1 # create a directory
2 directory = storage.directories.create(
3 :key => directory_name,
4 :public => true
5 )

113. files

114. files
1 # store the file
2 file = directory.files.create(
3 :body => File.open(path),
4 :key => name,
5 :public => true
6 )

115. files
1 # store the file
2 file = directory.files.create(
3 :body => File.open(path),
4 :key => name,
5 :public => true
6 )
7
8 # return the public url for the file
9 file.public_url

116. geostorage
1 # specify a different provider
2 credentials = {
3 :provider => 'Rackspace',
4 :rackspace_api_key => RACKSPACE_API_KEY,
5 :rackspace_username => RACKSPACE_USERNAME
6 }

117. cleanup

118. cleanup
geymus ~ ⌘ fog
...

119. cleanup
geymus ~ ⌘ fog
...
>> directory = AWS.directories.get(DIRECTORY_NAME)
...

120. cleanup
geymus ~ ⌘ fog
...
>> directory = AWS.directories.get(DIRECTORY_NAME)
...
>> directory.files.each {|file| file.destroy}
...

121. cleanup
geymus ~ ⌘ fog
...
>> directory = AWS.directories.get(DIRECTORY_NAME)
...
>> directory.files.each {|file| file.destroy}
...
>> directory.destroy
...

122. cleanup
geymus ~ ⌘ fog
...
>> directory = AWS.directories.get(DIRECTORY_NAME)
...
>> directory.files.each {|file| file.destroy}
...
>> directory.destroy
...
>> exit

123. geoaggregating
portable - AWS, Google, Local, Rackspace

124. geoaggregating
portable - AWS, Google, Local, Rackspace
lather, rinse, repeat

125. Phase 3: Profit
I’ve got the data, but how do I freemium?

126. Phase 3: Profit
I’ve got the data, but how do I freemium?
dns - make your cloud (premium) accessible

127. Get Connected
7 # setup a connection to the service
8 dns = Fog::DNS.new(credentials)

128. Get Connected
1 credentials = {
2 :provider => 'Zerigo',
3 :zerigo_email => ZERIGO_EMAIL,
4 :zerigo_token => ZERIGO_TOKEN
5 }
6
7 # setup a connection to the service
8 dns = Fog::DNS.new(credentials)

129. zones
1 # create a zone
2 zone = dns.zone.create(
3 :domain => domain_name,
4 :email => "admin@#{domain_name}"
5 )

130. records
1 # create a record
2 record = zones.records.create(
3 :ip => '1.2.3.4',
4 :name => "#{customer_name}.#{domain_name}",
5 :type => 'A'
6 )

131. cleanup
geymus ~ ⌘ fog
...
>> zone = Zerigo.zones.get(ZONE_ID)
...
>> zone.records.each {|record| record.destroy}
...
>> zone.destroy
...
>> exit

132. geofreemiuming
portable - AWS, Linode, Slicehost, Zerigo

133. geofreemiuming
portable - AWS, Linode, Slicehost, Zerigo
lather, rinse, repeat

134. Congratulations!

135. Congratulations!
todo - copy/paste, push, deploy!

136. Congratulations!
todo - copy/paste, push, deploy!
budgeting - find ways to spend your pile of money

137. Congratulations!
todo - copy/paste, push, deploy!
budgeting - find ways to spend your pile of money
geemus - likes coffee, bourbon, games, etc

138. Congratulations!
todo - copy/paste, push, deploy!
budgeting - find ways to spend your pile of money
geemus - likes coffee, bourbon, games, etc
retire - at your earliest convenience

139. Love!

140. Love!
knowledge - suffering encoded in ruby

141. Love!
knowledge - expertise encoded in ruby

142. Love!
knowledge - expertise encoded in ruby
empowering - show the cloud who is boss

143. Love!
knowledge - expertise encoded in ruby
empowering - show the cloud who is boss
exciting - this is some cutting edge stuff!

144. Homework: Easy

145. Homework: Easy
follow @fog to hear about releases

146. Homework: Easy
follow @fog to hear about releases
follow github.com/geemus/fog to hear nitty gritty

147. Homework: Easy
follow @fog to hear about releases
follow github.com/geemus/fog to hear nitty gritty
proudly display stickers wherever hackers are found

148. Homework: Easy
follow @fog to hear about releases
follow github.com/geemus/fog to hear nitty gritty
proudly display stickers wherever hackers are found
ask geemus your remaining questions

149. Homework: Easy
follow @fog to hear about releases
follow github.com/geemus/fog to hear nitty gritty
proudly display stickers wherever hackers are found
ask geemus your remaining questions
play games with geemus

150. Homework: Normal

151. Homework: Normal
report issues at github.com/geemus/fog/issues

152. Homework: Normal
report issues at github.com/geemus/fog/issues
irc #ruby-fog on freenode

153. Homework: Normal
report issues at github.com/geemus/fog/issues
irc #ruby-fog on freenode
discuss groups.google.com/group/ruby-fog

154. Homework: Normal
report issues at github.com/geemus/fog/issues
irc #ruby-fog on freenode
discuss groups.google.com/group/ruby-fog
write blog posts

155. Homework: Normal
report issues at github.com/geemus/fog/issues
irc #ruby-fog on freenode
discuss groups.google.com/group/ruby-fog
write blog posts
give lightning talks

156. Homework: Hard

157. Homework: Hard
help make fog.io the cloud services resource for ruby

158. Homework: Hard
help make fog.io the cloud services resource for ruby
send pull requests fixing issues or adding features

159. Homework: Hard
help make fog.io the cloud services resource for ruby
send pull requests fixing issues or adding features
proudly wear contributor-only grey shirt wherever hackers are found

160. Homework: Expert

161. Homework: Expert
help maintain the cloud services you depend on

162. Homework: Expert
help maintain the cloud services you depend on
become a collaborator by keeping informed and involved

163. Homework: Expert
help maintain the cloud services you depend on
become a collaborator by keeping informed and involved
proudly wear commit-only black shirt wherever hackers are found

164. Thanks!
@geemus - questions, comments, suggestions

165. Thanks! Questions?
(see also: README)
examples - http://gist.github.com/729992
slides - http://slidesha.re/hR8sP9
repo - http://github.com/geemus/fog
bugs - http://github.com/geemus/fog/issues
@geemus - questions, comments, suggestions