Class: ChefMetalFog::Providers::AWS

Inherits:
FogDriver
  • Object
show all
Defined in:
lib/chef_metal_fog/providers/aws.rb,
lib/chef_metal_fog/providers/aws/credentials.rb

Defined Under Namespace

Classes: Credentials

Constant Summary

Constants inherited from FogDriver

FogDriver::DEFAULT_OPTIONS

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from FogDriver

__new__, #allocate_machine, #allocate_machines, canonicalize_url, #compute, #compute_options, #connect_to_machine, #destroy_machine, from_provider, from_url, inherited, #initialize, new, #provider, provider_class_for, #ready_machine, register_provider_class, #stop_machine, #transport_for

Constructor Details

This class inherits a constructor from ChefMetalFog::FogDriver

Class Method Details

.aws_account_info_for(aws_profile) ⇒ Object 



141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
 
# File 'lib/chef_metal_fog/providers/aws.rb', line 141

def self.(aws_profile)
   ||= {}
  [aws_profile[:aws_access_key_id]] ||= begin
    options = {
      :aws_access_key_id => aws_profile[:aws_access_key_id],
      :aws_secret_access_key => aws_profile[:aws_secret_access_key],
      :aws_session_token => aws_profile[:aws_security_token]
    }
    options.delete_if { |key, value| value.nil? }

    iam = Fog::AWS::IAM.new(options)
    arn = begin
            # TODO it would be nice if Fog let you do this normally ...
            iam.send(:request, {
              'Action'    => 'GetUser',
              :parser     => Fog::Parsers::AWS::IAM::GetUser.new
            }).body['User']['Arn']
          rescue Fog::AWS::IAM::Error
            # TODO Someone tell me there is a better way to find out your current
            # user ID than this!  This is what happens when you use an IAM user
            # with default privileges.
            if $!.message =~ /AccessDenied.+(arn:aws:iam::\d+:\S+)/
              arn = $1
            else
              raise
            end
          end
    arn_split = arn.split(':', 6)
    {
      :aws_account_id => arn_split[4],
      :aws_username => arn_split[5],
      :aws_user_arn => arn
    }
  end
end

.compute_options_for(provider, id, config) ⇒ Object 



194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
 
# File 'lib/chef_metal_fog/providers/aws.rb', line 194

def self.compute_options_for(provider, id, config)
  new_compute_options = {}
  new_compute_options[:provider] = provider
  new_config = { :driver_options => { :compute_options => new_compute_options }}
  new_defaults = {
    :driver_options => { :compute_options => {} },
    :machine_options => { :bootstrap_options => {} }
  }
  result = Cheffish::MergedConfig.new(new_config, config, new_defaults)

  if id && id != ''
    # AWS canonical URLs are of the form fog:AWS:
    if id =~ /^(\d{12})(:(.+))?$/
      if $2
        id = $1
        new_compute_options[:region] = $3
      else
        Chef::Log.warn("Old-style AWS URL #{id} from an early beta of chef-metal (before 0.11-final) found. If you have servers in multiple regions on this account, you may see odd behavior like servers being recreated. To fix, edit any nodes with attribute metal.location.driver_url to include the region like so: fog:AWS:#{id}:<region> (e.g. us-east-1)")
      end
    else
      # Assume it is a profile name, and set that.
      aws_profile, region = id.split(':', 2)
      new_config[:driver_options][:aws_profile] = aws_profile
      new_compute_options[:region] = region
      id = nil
    end
  end

  aws_profile = get_aws_profile(result[:driver_options], id)
  new_compute_options[:aws_access_key_id] = aws_profile[:aws_access_key_id]
  new_compute_options[:aws_secret_access_key] = aws_profile[:aws_secret_access_key]
  new_compute_options[:aws_session_token] = aws_profile[:aws_security_token]
  new_defaults[:driver_options][:compute_options][:region] = aws_profile[:region]

   = (result[:driver_options][:compute_options])
  new_config[:driver_options][:aws_account_info] = 
  id = "#{account_info[:aws_account_id]}:#{result[:driver_options][:compute_options][:region]}"

  [result, id]
end

.find_aws_profile_for_account_id(aws_credentials, aws_account_id) ⇒ Object 



116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
 
# File 'lib/chef_metal_fog/providers/aws.rb', line 116

def self.(aws_credentials, )
  aws_profile = nil
  aws_credentials.each do |profile_name, profile|
    begin
       = (profile)
    rescue
      Chef::Log.warn("Could not connect to AWS profile #{aws_credentials[:name]}: #{$!}")
      Chef::Log.debug($!.backtrace.join("\n"))
      next
    end
    if [:aws_account_id] == 
      aws_profile = profile
      aws_profile[:name] = profile_name
      aws_profile = aws_profile.merge()
      break
    end
  end
  if aws_profile
    Chef::Log.info("Discovered AWS profile #{aws_profile[:name]} pointing at account #{aws_account_id}.  Using ...")
  else
    raise "No AWS profile leads to account ##{aws_account_id}.  Do you need to add profiles to ~/.aws/config?"
  end
  aws_profile
end

.get_aws_credentials(driver_options) ⇒ Object 



177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
 
# File 'lib/chef_metal_fog/providers/aws.rb', line 177

def self.get_aws_credentials(driver_options)
  # Grab the list of possible credentials
  if driver_options[:aws_credentials]
    aws_credentials = driver_options[:aws_credentials]
  else
    aws_credentials = Credentials.new
    if driver_options[:aws_config_file]
      aws_credentials.load_ini(driver_options.delete(:aws_config_file))
    elsif driver_options[:aws_csv_file]
      aws_credentials.load_csv(driver_options.delete(:aws_csv_file))
    else
      aws_credentials.load_default
    end
  end
  aws_credentials
end

.get_aws_profile(driver_options, aws_account_id) ⇒ Object 



59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
 
# File 'lib/chef_metal_fog/providers/aws.rb', line 59

def self.get_aws_profile(driver_options, )
  aws_credentials = get_aws_credentials(driver_options)
  compute_options = driver_options[:compute_options] || {}

  # Order of operations:
  # compute_options[:aws_access_key_id] / compute_options[:aws_secret_access_key] / compute_options[:aws_security_token] / compute_options[:region]
  # compute_options[:aws_profile]
  # ENV['AWS_ACCESS_KEY_ID'] / ENV['AWS_SECRET_ACCESS_KEY'] / ENV['AWS_SECURITY_TOKEN'] / ENV['AWS_REGION']
  # ENV['AWS_PROFILE']
  # ENV['DEFAULT_PROFILE']
  # 'default'
  aws_profile = if compute_options[:aws_access_key_id]
      Chef::Log.debug("Using AWS driver access key options")
      {
        :aws_access_key_id => compute_options[:aws_access_key_id],
        :aws_secret_access_key => compute_options[:aws_secret_access_key],
        :aws_security_token => compute_options[:aws_session_token],
        :region => compute_options[:region]
      }
    elsif driver_options[:aws_profile]
      Chef::Log.debug("Using AWS profile #{driver_options[:aws_profile]}")
      aws_credentials[driver_options[:aws_profile]]
    elsif ENV['AWS_ACCESS_KEY_ID']
      Chef::Log.debug("Using AWS environment variable access keys")
      {
        :aws_access_key_id => ENV['AWS_ACCESS_KEY_ID'],
        :aws_secret_access_key => ENV['AWS_SECRET_ACCESS_KEY'],
        :aws_security_token => ENV['AWS_SECURITY_TOKEN'],
        :region => ENV['AWS_REGION']
      }
    elsif ENV['AWS_PROFILE']
      Chef::Log.debug("Using AWS profile #{ENV['AWS_PROFILE']} from AWS_PROFILE environment variable")
      aws_credentials[ENV['AWS_PROFILE']]
    else
      Chef::Log.debug("Using AWS default profile")
      aws_credentials.default
    end

  # Merge in account info for profile
  if aws_profile
    aws_profile = aws_profile.merge((aws_profile))
  end

  # If no profile is found (or the profile is not the right account), search
  # for a profile that matches the given account ID
  if  && (!aws_profile || aws_profile[:aws_account_id] != )
    aws_profile = (aws_credentials, )
  end

  if !aws_profile
    raise "No AWS profile specified!  Are you missing something in the Chef config or ~/.aws/config?"
  end

  aws_profile.delete_if { |key, value| value.nil? }
  aws_profile
end

Instance Method Details

#bootstrap_options_for(action_handler, machine_spec, machine_options) ⇒ Object 



23
24
25
26
27
28
29
30
31
 
# File 'lib/chef_metal_fog/providers/aws.rb', line 23

def bootstrap_options_for(action_handler, machine_spec, machine_options)
  bootstrap_options = symbolize_keys(machine_options[:bootstrap_options] || {})

  if !bootstrap_options[:key_name]
    bootstrap_options[:key_name] = overwrite_default_key_willy_nilly(action_handler)
  end
  bootstrap_options.delete(:tags) # we handle these separately for performance reasons
  bootstrap_options
end

#create_many_servers(num_servers, bootstrap_options, parallelizer) ⇒ Object 



235
236
237
238
239
240
241
242
243
244
245
246
247
248
 
# File 'lib/chef_metal_fog/providers/aws.rb', line 235

def create_many_servers(num_servers, bootstrap_options, parallelizer)
  # Create all the servers in one request if we have a version of fog that can do that
  if compute.servers.respond_to?(:create_many)
    servers = compute.servers.create_many(num_servers, num_servers, bootstrap_options)
    if block_given?
      parallelizer.parallel_do(servers) do |server|
        yield server
      end
    end
    servers
  else
    super
  end
end

#create_servers(action_handler, specs_and_options, parallelizer) ⇒ Object 



33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
 
# File 'lib/chef_metal_fog/providers/aws.rb', line 33

def create_servers(action_handler, specs_and_options, parallelizer)
  super(action_handler, specs_and_options, parallelizer) do |machine_spec, server|
    yield machine_spec, server if block_given?

    machine_options = specs_and_options[machine_spec]
    bootstrap_options = symbolize_keys(machine_options[:bootstrap_options] || {})
    tags = default_tags(machine_spec, bootstrap_options[:tags] || {})

    # Right now, not doing that in case manual tagging is going on
    server_tags = server.tags || {}
    extra_tags = tags.keys.select { |tag_name| !server_tags.has_key?(tag_name) }.to_a
    different_tags = server_tags.select { |tag_name, tag_value| tags.has_key?(tag_name) && tags[tag_name] != tag_value }.to_a
    if extra_tags.size > 0 || different_tags.size > 0
      tags_description = [ "Update tags for #{machine_spec.name} on #{driver_url}" ]
      tags_description += extra_tags.map { |tag| "  Add #{tag} = #{tags[tag].inspect}" }
      tags_description += different_tags.map { |tag| "  Update #{tag.name} from #{tag.value.inspect} to #{tags[tag.name].inspect}"}
      action_handler.perform_action tags_description do
        # TODO should we narrow this down to just extra/different tags or
        # is it OK to just pass 'em all?  Certainly easier to do the
        # latter, and I can't think of a consequence for doing so offhand.
        compute.create_tags(server.identity, tags)
      end
    end
  end
end

#creator ⇒ Object 



15
16
17
 
# File 'lib/chef_metal_fog/providers/aws.rb', line 15

def creator
  driver_options[:aws_account_info][:aws_username]
end

#default_ssh_username ⇒ Object 



19
20
21
 
# File 'lib/chef_metal_fog/providers/aws.rb', line 19

def default_ssh_username
  'ubuntu'
end

#servers_for(machine_specs) ⇒ Object 



250
251
252
253
254
255
256
257
258
259
260
261
262
263
 
# File 'lib/chef_metal_fog/providers/aws.rb', line 250

def servers_for(machine_specs)
  # Grab all the servers in one request
  instance_ids = machine_specs.map { |machine_spec| (machine_spec.location || {})['server_id'] }.select { |id| !id.nil? }
  servers = compute.servers.all('instance-id' => instance_ids)
  result = {}
  machine_specs.each do |machine_spec|
    if machine_spec.location
      result[machine_spec] = servers.select { |s| s.id == machine_spec.location['server_id'] }.first
    else
      result[machine_spec] = nil
    end
  end
  result
end