Class: Bosh::Registry::InstanceManager::Aws

Inherits:
Bosh::Registry::InstanceManager show all
Defined in:
lib/bosh/registry/instance_manager/aws.rb

Constant Summary collapse

AWS_MAX_RETRIES = 
2

Instance Method Summary collapse

Methods inherited from Bosh::Registry::InstanceManager

#delete_settings, #read_settings, #update_settings

Constructor Details

#initialize(cloud_config) ⇒ Aws

Returns a new instance of Aws.



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# File 'lib/bosh/registry/instance_manager/aws.rb', line 10

def initialize(cloud_config)
  validate_options(cloud_config)

  @logger = Bosh::Registry.logger

  @aws_properties = cloud_config["aws"]
  @aws_options = {
    :max_retries => @aws_properties["max_retries"] || AWS_MAX_RETRIES,
    :ec2_endpoint => @aws_properties['ec2_endpoint'] || "ec2.#{@aws_properties['region']}.amazonaws.com",
    :logger => @logger
  }
  # configure optional parameters
  %w(
    access_key_id
    secret_access_key
    ssl_verify_peer
    ssl_ca_file
    ssl_ca_path
  ).each do |k|
    @aws_options[k.to_sym] = @aws_properties[k] unless @aws_properties[k].nil?
  end

  # credentials_source could be static (default) or env_or_profile
  # - if "static", credentials must be provided
  # - if "env_or_profile", credentials are read from instance metadata
  credentials_source = cloud_config['aws']['credentials_source'] || 'static'
  static_credentials = {}

  if credentials_source == 'static'
    static_credentials[:access_key_id] = cloud_config['aws']['access_key_id']
    static_credentials[:secret_access_key] = cloud_config['aws']['secret_access_key']
  end

  @aws_options[:credential_provider] = Bosh::Registry::AWSCredentialsProvider.new(static_credentials)

  @ec2 = AWS::EC2.new(@aws_options)
end

Instance Method Details

#instance_ips(instance_id) ⇒ Object

Get the list of IPs belonging to this instance



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# File 'lib/bosh/registry/instance_manager/aws.rb', line 77

def instance_ips(instance_id)
  instance = @ec2.instances[instance_id]
  ips = [instance.private_ip_address, instance.public_ip_address]
  if instance.has_elastic_ip?
    ips << instance.elastic_ip.public_ip
  end
  ips
rescue AWS::Errors::Base => e
  raise Bosh::Registry::AwsError, "AWS error: #{e}"
end

#validate_options(cloud_config) ⇒ Object 



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# File 'lib/bosh/registry/instance_manager/aws.rb', line 48

def validate_options(cloud_config)
  unless cloud_config.has_key?("aws") &&
      cloud_config["aws"].is_a?(Hash) &&
      cloud_config["aws"]["region"]
    raise ConfigError, "Invalid AWS configuration parameters"
  end

  credentials_source = cloud_config['aws']['credentials_source'] || 'static'

  if credentials_source != 'env_or_profile' && credentials_source != 'static'
    raise ConfigError, "Unknown credentials_source #{credentials_source}"
  end

  if credentials_source == 'static'
    if cloud_config["aws"]["access_key_id"].nil? || cloud_config["aws"]["secret_access_key"].nil?
        raise ConfigError, "Must use access_key_id and secret_access_key with static credentials_source"
    end
  end

  if credentials_source == 'env_or_profile'
    if cloud_config["aws"]["access_key_id"] || cloud_config["aws"]["secret_access_key"]
        raise ConfigError, "Can't use access_key_id and secret_access_key with env_or_profile credentials_source"
    end
  end


end