Class: Terrafying::Components::StaticSet

Inherits:
Terrafying::Context
  • Object
show all
Includes:
Usable
Defined in:
lib/terrafying/components/staticset.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Usable

#egress_security_group, #ingress_security_group, #path_mtu_setup!, #pingable_by, #pingable_by_cidr, #security_group, #used_by, #used_by_cidr

Constructor Details

#initialize ⇒ StaticSet

Returns a new instance of StaticSet.



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# File 'lib/terrafying/components/staticset.rb', line 25

def initialize
  super
end

Instance Attribute Details

#instances ⇒ Object (readonly)

Returns the value of attribute instances.



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# File 'lib/terrafying/components/staticset.rb', line 13

def instances
  @instances
end

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/terrafying/components/staticset.rb', line 13

def name
  @name
end

Class Method Details

.create_in(vpc, name, options = {}) ⇒ Object 



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# File 'lib/terrafying/components/staticset.rb', line 17

def self.create_in(vpc, name, options = {})
  StaticSet.new.create_in vpc, name, options
end

.find_in(vpc, name) ⇒ Object 



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# File 'lib/terrafying/components/staticset.rb', line 21

def self.find_in(vpc, name)
  StaticSet.new.find_in vpc, name
end

Instance Method Details

#attach_load_balancer(load_balancer) ⇒ Object 



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# File 'lib/terrafying/components/staticset.rb', line 162

def attach_load_balancer(load_balancer)
  @instances.product(load_balancer.targets).each.with_index do |(instance, target), i|
    resource :aws_lb_target_group_attachment, "#{load_balancer.name}-#{@name}-#{i}".gsub(%r{^(\d)}, '_\1'),
             target_group_arn: target.target_group,
             target_id: instance.id
  end

  used_by(load_balancer) if load_balancer.type == 'application'
end

#create_in(vpc, name, options = {}) ⇒ Object 



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# File 'lib/terrafying/components/staticset.rb', line 37

def create_in(vpc, name, options = {})
  options = {
    public: false,
    eip: false,
    ami: aws.ami('base-image-fc-75aa2aef', owners = ['477284023816']),
    instance_type: 't3a.micro',
    subnets: vpc.subnets.fetch(:private, []),
    ports: [],
    instances: [{}],
    instance_profile: nil,
    security_groups: [],
    user_data: '',
    tags: {},
    ssh_group: vpc.ssh_group,
    depends_on: [],
    volumes: [],
    vpc_endpoints_egress: []
  }.merge(options)

  ident = "#{tf_safe(vpc.name)}-#{name}"

  @name = ident
  @ports = enrich_ports(options[:ports])

  @security_group = resource :aws_security_group, ident,
                             name: "staticset-#{ident}",
                             description: "Describe the ingress and egress of the static set #{ident}",
                             tags: options[:tags],
                             vpc_id: vpc.id

  vpc_endpoints_egress = options[:vpc_endpoints_egress]
  if vpc_endpoints_egress.empty?
    default_egress_rule(ident, @security_group)
  else
    vpc_endpoint_egress_rules(ident, @security_group, vpc, vpc_endpoints_egress)
  end
  path_mtu_setup!

  @instances = options[:instances].map.with_index do |config, i|
    instance_ident = "#{name}-#{i}"

    instance = add! Instance.create_in(
      vpc, instance_ident, options.merge(
                             {
                               subnets: options[:subnets],
                               security_groups: [@security_group] + options[:security_groups],
                               depends_on: options[:depends_on],
                               instance_profile: options[:instance_profile],
                               tags: {
                                 staticset_name: ident
                               }.merge(options[:tags])
                             }.merge(config)
                           )
    )

    options[:volumes].each.with_index do |volume, vol_i|
      volume_for("#{instance_ident}-#{vol_i}", instance, volume, options[:tags])
    end

    instance
  end

  @ports.each do |port|
    resource :aws_security_group_rule, "#{@name}-to-self-#{port[:name]}",
             security_group_id: @security_group,
             type: 'ingress',
             from_port: from_port(port[:upstream_port]),
             to_port: to_port(port[:upstream_port]),
             protocol: port[:type] == 'udp' ? 'udp' : 'tcp',
             self: true
  end

  self
end

#default_egress_rule(ident, security_group) ⇒ Object 



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# File 'lib/terrafying/components/staticset.rb', line 112

def default_egress_rule(ident, security_group)
  resource :aws_security_group_rule, "#{ident}-default-egress",
           security_group_id: security_group,
           type: 'egress',
           from_port: 0,
           to_port: 0,
           protocol: -1,
           cidr_blocks: ['0.0.0.0/0']
end

#find_in(_vpc, name) ⇒ Object 



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# File 'lib/terrafying/components/staticset.rb', line 29

def find_in(_vpc, name)
  @name = name

  raise 'unimplemented'

  self
end

#volume_for(name, instance, volume, tags) ⇒ Object 



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# File 'lib/terrafying/components/staticset.rb', line 141

def volume_for(name, instance, volume, tags)
  vol_opts = {
    availability_zone: instance.subnet.az,
    size: volume[:size],
    type: volume[:type] || 'gp2',
    encrypted: volume[:encrypted] || false,
    kms_key_id: volume[:kms_key_id],
    tags: {
      Name: name
    }.merge(tags)
  }.reject { |_, v| v.nil? }

  volume_id = resource :aws_ebs_volume, name, vol_opts

  resource :aws_volume_attachment, name,
           device_name: volume[:device],
           volume_id: volume_id,
           instance_id: instance.id,
           force_detach: true
end

#vpc_endpoint_egress_rules(ident, security_group, vpc, vpc_endpoints) ⇒ Object 



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# File 'lib/terrafying/components/staticset.rb', line 123

def vpc_endpoint_egress_rules(ident, security_group, vpc, vpc_endpoints)
  prefix_ids = vpc_endpoints.map do | e |
    vpc_endpoint = data :aws_vpc_endpoint, "#{ident}-#{tf_safe(e)}", {
      vpc_id: vpc.id,
      service_name: e,
    }
    vpc_endpoint[:prefix_list_id]
  end

  resource :aws_security_group_rule, "#{ident}-vpc-endpoint-egress",
           security_group_id: security_group,
           type: 'egress',
           from_port: 0,
           to_port: 0,
           protocol: -1,
           prefix_list_ids: prefix_ids
end