class Terraforming::Resource::LaunchConfiguration

Public Class Methods

new(client) click to toggle source
# File lib/terraforming/resource/launch_configuration.rb, line 14
def initialize(client)
  @client = client
end
tf(client: Aws::AutoScaling::Client.new) click to toggle source
# File lib/terraforming/resource/launch_configuration.rb, line 6
def self.tf(client: Aws::AutoScaling::Client.new)
  self.new(client).tf
end
tfstate(client: Aws::AutoScaling::Client.new) click to toggle source
# File lib/terraforming/resource/launch_configuration.rb, line 10
def self.tfstate(client: Aws::AutoScaling::Client.new)
  self.new(client).tfstate
end

Public Instance Methods

tf() click to toggle source
# File lib/terraforming/resource/launch_configuration.rb, line 18
def tf
  apply_template(@client, "tf/launch_configuration")
end
tfstate() click to toggle source
# File lib/terraforming/resource/launch_configuration.rb, line 22
def tfstate
  launch_configurations.inject({}) do |resources, lc|
    attributes = {
      "name" => lc.launch_configuration_name,
      "image_id" => lc.image_id,
      "instance_type" => lc.instance_type,
      "key_name" => lc.key_name,
      "security_groups.#" => lc.security_groups.length.to_s,
      "associate_public_ip_address" => lc.associate_public_ip_address.to_s,
      "user_data" => lc.user_data,
      "enable_monitoring" => lc.instance_monitoring.enabled.to_s,
      "ebs_optimized" => lc.ebs_optimized.to_s,
      "root_block_device.#" => root_block_device_count(lc).to_s,
      "ebs_block_device.#" => ebs_block_device_count(lc).to_s,
      "ephemeral_block_device.#" => ephemeral_block_device_count(lc).to_s
    }

    lc.security_groups.each do |sg|
      hash = hash_security_group(sg)
      attributes["security_groups.#{hash}"] = sg
    end

    attributes["iam_instance_profile"] = lc.iam_instance_profile if lc.iam_instance_profile
    attributes["spot_price"] = lc.spot_price if lc.spot_price
    attributes["placement_tenancy"] = lc.placement_tenancy if lc.placement_tenancy

    resources["aws_launch_configuration.#{module_name_of(lc)}"] = {
      "type" => "aws_launch_configuration",
      "primary" => {
        "id" => lc.launch_configuration_name,
        "attributes" => attributes
      }
    }

    resources
  end
end

Private Instance Methods

ebs_block_device?(block_device) click to toggle source
# File lib/terraforming/resource/launch_configuration.rb, line 73
def ebs_block_device?(block_device)
  block_device.virtual_name.nil? && block_device.ebs
end
ebs_block_device_count(launch_configuration) click to toggle source
# File lib/terraforming/resource/launch_configuration.rb, line 77
def ebs_block_device_count(launch_configuration)
  launch_configuration.block_device_mappings.select do |volume|
    ebs_block_device?(volume) && !root_block_device?(volume)
  end.length
end
ephemeral_block_device?(block_device) click to toggle source
# File lib/terraforming/resource/launch_configuration.rb, line 83
def ephemeral_block_device?(block_device)
  block_device.virtual_name != nil
end
ephemeral_block_device_count(launch_configuration) click to toggle source
# File lib/terraforming/resource/launch_configuration.rb, line 87
def ephemeral_block_device_count(launch_configuration)
  launch_configuration.block_device_mappings.select do |volume|
    ephemeral_block_device?(volume)
  end.length
end
hash_security_group(name) click to toggle source
# File lib/terraforming/resource/launch_configuration.rb, line 93
def hash_security_group(name)
  Zlib.crc32(name)
end
launch_configurations() click to toggle source
# File lib/terraforming/resource/launch_configuration.rb, line 97
def launch_configurations
  @client.describe_launch_configurations.map(&:launch_configurations).flatten
end
module_name_of(launch_configuration) click to toggle source
# File lib/terraforming/resource/launch_configuration.rb, line 101
def module_name_of(launch_configuration)
  normalize_module_name(launch_configuration.launch_configuration_name)
end
root_block_device?(block_device) click to toggle source

Taken from docs.aws.amazon.com/AWSEC2/latest/UserGuide/device_naming.html

# File lib/terraforming/resource/launch_configuration.rb, line 63
def root_block_device?(block_device)
  %w(/dev/sda1 /dev/xvda).include? block_device.device_name
end
root_block_device_count(launch_configuration) click to toggle source
# File lib/terraforming/resource/launch_configuration.rb, line 67
def root_block_device_count(launch_configuration)
  launch_configuration.block_device_mappings.select do |volume|
    root_block_device?(volume)
  end.length
end