Class: Miasma::Models::Compute::Aws

Inherits:
Miasma::Models::Compute show all
Includes:
Contrib::AwsApiCore::ApiCommon, Contrib::AwsApiCore::RequestUtils
Defined in:
lib/miasma/contrib/aws/compute.rb

Overview

Compute interface for AWS

Constant Summary collapse

API_SERVICE =

Service name of the API

"ec2".freeze
API_VERSION =

Supported version of the EC2 API

"2014-06-15".freeze
SERVER_STATE_MAP =

Returns map state to valid internal values.

Returns:

  • (Smash) —

    map state to valid internal values

Smash.new(
  "running" => :running,
  "pending" => :pending,
  "shutting-down" => :pending,
  "terminated" => :terminated,
  "stopping" => :pending,
  "stopped" => :stopped,
).to_smash(:freeze)

Instance Method Summary collapse

Methods included from Contrib::AwsApiCore::RequestUtils

#all_result_pages

Methods included from Contrib::AwsApiCore::ApiCommon

#after_setup, #api_for, #connect, #connection, #custom_setup, #endpoint, #extract_creds, #get_credential, #get_region, included, #load_aws_file, #load_ecs_credentials!, #load_instance_credentials!, #make_request, #perform_request_retry, #retryable_allowed?, #signer, #sts_assume_role!, #sts_assume_role_update_required?, #sts_attribute_update_required?, #sts_mfa_session!, #sts_mfa_session_update_required?, #update_request, #uri_escape

Instance Method Details

#server_all ⇒ Object 



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# File 'lib/miasma/contrib/aws/compute.rb', line 108

def server_all
  results = all_result_pages(nil, :body,
                             "DescribeInstancesResponse", "reservationSet", "item") do |options|
    request(
      :method => :post,
      :path => "/",
      :form => options.merge(
        "Action" => "DescribeInstances",
      ),
    )
  end
  results.map do |server|
    [server[:instancesSet][:item]].flatten.compact.map do |srv|
      Server.new(
        self,
        :id => srv[:instanceId],
        :name => srv.fetch(:tagSet, :item, []).map { |tag|
          tag[:value] if tag.is_a?(Hash) && tag[:key] == "Name"
        }.compact.first,
        :image_id => srv[:imageId],
        :flavor_id => srv[:instanceType],
        :state => SERVER_STATE_MAP.fetch(srv.get(:instanceState, :name), :pending),
        :addresses_private => [
          Server::Address.new(:version => 4, :address => srv[:privateIpAddress]),
        ],
        :addresses_public => [
          Server::Address.new(:version => 4, :address => srv[:ipAddress]),
        ],
        :status => srv.get(:instanceState, :name),
        :key_name => srv[:keyName],
      ).valid_state
    end
  end.flatten
end

#server_destroy(server) ⇒ Object 



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# File 'lib/miasma/contrib/aws/compute.rb', line 59

def server_destroy(server)
  if server.persisted?
    result = request(
      :method => :post,
      :path => "/",
      :form => {
        "Action" => "TerminateInstances",
        "InstanceId.1" => server.id,
      },
    )
  else
    raise Error::ModelPersistError.new("Server is not persisted")
  end
end

#server_reload(server) ⇒ Object 



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# File 'lib/miasma/contrib/aws/compute.rb', line 27

def server_reload(server)
  result = request(
    :method => :post,
    :path => "/",
    :form => {
      "Action" => "DescribeInstances",
      "InstanceId.1" => server.id,
    },
  )
  srv = result.get(:body,
                   "DescribeInstancesResponse", "reservationSet",
                   "item", "instancesSet", "item")
  server.load_data(
    :id => srv[:instanceId],
    :name => [srv.fetch(:tagSet, :item, [])].flatten.map { |tag|
      tag[:value] if tag.is_a?(Hash) && tag[:key] == "Name"
    }.compact.first,
    :image_id => srv[:imageId],
    :flavor_id => srv[:instanceType],
    :state => SERVER_STATE_MAP.fetch(srv.get(:instanceState, :name), :pending),
    :addresses_private => [
      Server::Address.new(:version => 4, :address => srv[:privateIpAddress]),
    ],
    :addresses_public => [
      Server::Address.new(:version => 4, :address => srv[:ipAddress]),
    ],
    :status => srv.get(:instanceState, :name),
    :key_name => srv[:keyName],
  )
  server.valid_state
end

#server_save(server) ⇒ Object 



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# File 'lib/miasma/contrib/aws/compute.rb', line 74

def server_save(server)
  unless server.persisted?
    server.load_data(server.attributes)
    result = request(
      :method => :post,
      :path => "/",
      :form => {
        "Action" => "RunInstances",
        "ImageId" => server.image_id,
        "InstanceType" => server.flavor_id,
        "KeyName" => server.key_name,
        "MinCount" => 1,
        "MaxCount" => 1,
      },
    )
    server.id = result.get(:body,
                           "RunInstancesResponse", "instancesSet", "item", "instanceId")
    server.valid_state
    request(
      :method => :post,
      :path => "/",
      :form => {
        "Action" => "CreateTags",
        "ResourceId.1" => server.id,
        "Tag.1.Key" => "Name",
        "Tag.1.Value" => server.name,
      },
    )
  else
    raise Error::ModelPersistError.new("Server is not persisted")
  end
end