Class: Terraforming::Resource::ELB

Inherits:
Object
  • Object
show all
Includes:
Util
Defined in:
lib/terraforming/resource/elb.rb

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Util

#apply_template, #name_from_tag, #normalize_module_name, #prettify_policy, #template_path

Constructor Details

#initialize(client) ⇒ ELB

Returns a new instance of ELB.



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# File 'lib/terraforming/resource/elb.rb', line 14

def initialize(client)
  @client = client
end

Class Method Details

.tf(client: Aws::ElasticLoadBalancing::Client.new) ⇒ Object 



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# File 'lib/terraforming/resource/elb.rb', line 6

def self.tf(client: Aws::ElasticLoadBalancing::Client.new)
  self.new(client).tf
end

.tfstate(client: Aws::ElasticLoadBalancing::Client.new) ⇒ Object 



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# File 'lib/terraforming/resource/elb.rb', line 10

def self.tfstate(client: Aws::ElasticLoadBalancing::Client.new)
  self.new(client).tfstate
end

Instance Method Details

#access_logs_attributes_of(load_balancer_attributes) ⇒ Object 



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# File 'lib/terraforming/resource/elb.rb', line 64

def access_logs_attributes_of(load_balancer_attributes)
  access_log = load_balancer_attributes.access_log

  if access_log.enabled
    {
      "access_logs.#" => "1",
      "access_logs.0.bucket" => access_log.s3_bucket_name,
      "access_logs.0.bucket_prefix" => access_log.s3_bucket_prefix,
      "access_logs.0.interval" => access_log.emit_interval.to_s,
    }
  else
    {
      "access_logs.#" => "0",
    }
  end
end

#healthcheck_attributes_of(elb) ⇒ Object 



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# File 'lib/terraforming/resource/elb.rb', line 81

def healthcheck_attributes_of(elb)
  hashcode = healthcheck_hashcode_of(elb.health_check)
  attributes = {
    # Now each ELB supports one heatlhcheck
    "health_check.#" => "1",
    "health_check.#{hashcode}.healthy_threshold" => elb.health_check.healthy_threshold.to_s,
    "health_check.#{hashcode}.interval" => elb.health_check.interval.to_s,
    "health_check.#{hashcode}.target" => elb.health_check.target,
    "health_check.#{hashcode}.timeout" => elb.health_check.timeout.to_s,
    "health_check.#{hashcode}.unhealthy_threshold" => elb.health_check.unhealthy_threshold.to_s
  }

  attributes
end

#healthcheck_hashcode_of(health_check) ⇒ Object 



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# File 'lib/terraforming/resource/elb.rb', line 96

def healthcheck_hashcode_of(health_check)
  string =
    "#{health_check.healthy_threshold}-" <<
    "#{health_check.unhealthy_threshold}-" <<
    "#{health_check.target}-" <<
    "#{health_check.interval}-" <<
    "#{health_check.timeout}-"

  Zlib.crc32(string)
end

#instances_attributes_of(elb) ⇒ Object 



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# File 'lib/terraforming/resource/elb.rb', line 118

def instances_attributes_of(elb)
  attributes = {"instances.#" => elb.instances.length.to_s}

  elb.instances.each do |instance|
    attributes["instances.#{Zlib.crc32(instance.instance_id)}"] = instance.instance_id
  end

  attributes
end

#internal?(load_balancer) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/terraforming/resource/elb.rb', line 199

def internal?(load_balancer)
  load_balancer.scheme == "internal"
end

#listener_attributes_of(listener) ⇒ Object 



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# File 'lib/terraforming/resource/elb.rb', line 158

def listener_attributes_of(listener)
  hashcode = listener_hashcode_of(listener)

  attributes = {
    "listener.#{hashcode}.instance_port" => listener.instance_port.to_s,
    "listener.#{hashcode}.instance_protocol" => listener.instance_protocol.downcase,
    "listener.#{hashcode}.lb_port" => listener.load_balancer_port.to_s,
    "listener.#{hashcode}.lb_protocol" => listener.protocol.downcase,
    "listener.#{hashcode}.ssl_certificate_id" => listener.ssl_certificate_id
  }

  attributes
end

#listener_hashcode_of(listener) ⇒ Object 



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# File 'lib/terraforming/resource/elb.rb', line 172

def listener_hashcode_of(listener)
  string =
    "#{listener.instance_port}-" <<
    "#{listener.instance_protocol.downcase}-" <<
    "#{listener.load_balancer_port}-" <<
    "#{listener.protocol.downcase}-" <<
    "#{listener.ssl_certificate_id}-"

  Zlib.crc32(string)
end

#listeners_attributes_of(elb) ⇒ Object 



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# File 'lib/terraforming/resource/elb.rb', line 148

def listeners_attributes_of(elb)
  attributes = {"listener.#" => elb.listener_descriptions.length.to_s}

  elb.listener_descriptions.each do |listener_description|
    attributes.merge!(listener_attributes_of(listener_description.listener))
  end

  attributes
end

#load_balancer_attributes_of(load_balancer) ⇒ Object 



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# File 'lib/terraforming/resource/elb.rb', line 187

def load_balancer_attributes_of(load_balancer)
  @client.describe_load_balancer_attributes(load_balancer_name: load_balancer.load_balancer_name).load_balancer_attributes
end

#load_balancers ⇒ Object 



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# File 'lib/terraforming/resource/elb.rb', line 183

def load_balancers
  @client.describe_load_balancers.load_balancer_descriptions
end

#module_name_of(load_balancer) ⇒ Object 



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# File 'lib/terraforming/resource/elb.rb', line 191

def module_name_of(load_balancer)
  normalize_module_name(load_balancer.load_balancer_name)
end

#sg_attributes_of(elb) ⇒ Object 



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# File 'lib/terraforming/resource/elb.rb', line 138

def sg_attributes_of(elb)
  attributes = {"security_groups.#" => elb.security_groups.length.to_s}

  elb.security_groups.each do |sg_id|
    attributes["security_groups.#{Zlib.crc32(sg_id)}"] = sg_id
  end

  attributes
end

#subnets_attributes_of(elb) ⇒ Object 



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# File 'lib/terraforming/resource/elb.rb', line 128

def subnets_attributes_of(elb)
  attributes = {"subnets.#" => elb.subnets.length.to_s}

  elb.subnets.each do |subnet_id|
    attributes["subnets.#{Zlib.crc32(subnet_id)}"] = subnet_id
  end

  attributes
end

#tags_attributes_of(elb) ⇒ Object 



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# File 'lib/terraforming/resource/elb.rb', line 107

def tags_attributes_of(elb)
  tags = @client.describe_tags(load_balancer_names: [elb.load_balancer_name]).tag_descriptions.first.tags
  attributes = {"tags.#" => tags.length.to_s}

  tags.each do |tag|
    attributes["tags.#{tag.key}"] = tag.value
  end

  attributes
end

#tf ⇒ Object 



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# File 'lib/terraforming/resource/elb.rb', line 18

def tf
  apply_template(@client, "tf/elb")
end

#tfstate ⇒ Object 



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# File 'lib/terraforming/resource/elb.rb', line 22

def tfstate
  load_balancers.inject({}) do |resources, load_balancer|
    load_balancer_attributes = load_balancer_attributes_of(load_balancer)
    attributes = {
      "availability_zones.#" => load_balancer.availability_zones.length.to_s,
      "connection_draining" => load_balancer_attributes.connection_draining.enabled.to_s,
      "connection_draining_timeout" => load_balancer_attributes.connection_draining.timeout.to_s,
      "cross_zone_load_balancing" => load_balancer_attributes.cross_zone_load_balancing.enabled.to_s,
      "dns_name" => load_balancer.dns_name,
      "id" => load_balancer.load_balancer_name,
      "idle_timeout" => load_balancer_attributes.connection_settings.idle_timeout.to_s,
      "instances.#" => load_balancer.instances.length.to_s,
      "internal" => internal?(load_balancer).to_s,
      "name" => load_balancer.load_balancer_name,
      "source_security_group" => load_balancer.source_security_group.group_name,
    }

    if load_balancer_attributes.access_log.enabled

    end

    attributes.merge!(access_logs_attributes_of(load_balancer_attributes))
    attributes.merge!(healthcheck_attributes_of(load_balancer))
    attributes.merge!(listeners_attributes_of(load_balancer))
    attributes.merge!(sg_attributes_of(load_balancer))
    attributes.merge!(subnets_attributes_of(load_balancer))
    attributes.merge!(instances_attributes_of(load_balancer))
    attributes.merge!(tags_attributes_of(load_balancer))


    resources["aws_elb.#{module_name_of(load_balancer)}"] = {
      "type" => "aws_elb",
      "primary" => {
        "id" => load_balancer.load_balancer_name,
        "attributes" => attributes
      }
    }

    resources
  end
end

#vpc_elb?(load_balancer) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/terraforming/resource/elb.rb', line 195

def vpc_elb?(load_balancer)
  load_balancer.vpc_id != ""
end