Module: Terrafying::Components::Usable

Included in:
DynamicSet, Endpoint, Instance, LoadBalancer, SecurityGroup, Service, StaticSet
Defined in:
lib/terrafying/components/usable.rb

Instance Method Summary collapse

Instance Method Details

#egress_security_group ⇒ Object 



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# File 'lib/terrafying/components/usable.rb', line 14

def egress_security_group
  @egress_security_group || @security_group
end

#ingress_security_group ⇒ Object 



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# File 'lib/terrafying/components/usable.rb', line 10

def ingress_security_group
  @ingress_security_group || @security_group
end

#path_mtu_setup! ⇒ Object 



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# File 'lib/terrafying/components/usable.rb', line 18

def path_mtu_setup!
  resource :aws_security_group_rule, "#{@name}-path-mtu".gsub(%r{^(\d)}, '_\1'),
           security_group_id: egress_security_group,
           type: 'ingress',
           protocol: 1, # icmp
           from_port: 3, # icmp type
           to_port: 4, # icmp code
           cidr_blocks: ['0.0.0.0/0']
end

#pingable_by(*other_resources) ⇒ Object 



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# File 'lib/terrafying/components/usable.rb', line 56

def pingable_by(*other_resources)
  other_resources.map do |other_resource|
    resource :aws_security_group_rule, "#{@name}-to-#{other_resource.name}-ping",
             security_group_id: ingress_security_group,
             type: 'ingress',
             protocol: 1, # icmp
             from_port: 8, # icmp type
             to_port: 0, # icmp code
             source_security_group_id: other_resource.egress_security_group

    resource :aws_security_group_rule, "#{@name}-to-#{other_resource.name}-pingv6",
             security_group_id: ingress_security_group,
             type: 'ingress',
             protocol: 58, # icmpv6
             from_port: 128, # icmp type
             to_port: 0, # icmp code
             source_security_group_id: other_resource.egress_security_group

    resource :aws_security_group_rule, "#{other_resource.name}-to-#{@name}-ping",
             security_group_id: other_resource.egress_security_group,
             type: 'egress',
             protocol: 1, # icmp
             from_port: 8, # icmp type
             to_port: 0, # icmp code
             source_security_group_id: ingress_security_group

    resource :aws_security_group_rule, "#{other_resource.name}-to-#{@name}-pingv6",
             security_group_id: other_resource.egress_security_group,
             type: 'egress',
             protocol: 58, # icmpv6
             from_port: 128, # icmp type
             to_port: 0, # icmp code
             source_security_group_id: ingress_security_group
  end
end

#pingable_by_cidr(*cidrs) ⇒ Object 



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# File 'lib/terrafying/components/usable.rb', line 28

def pingable_by_cidr(*cidrs)
  ident = Digest::SHA2.hexdigest cidrs.to_s

  resource :aws_security_group_rule, "#{@name}-to-#{ident}-ping",
           security_group_id: ingress_security_group,
           type: 'ingress',
           protocol: 1, # icmp
           from_port: 8, # icmp type
           to_port: 0, # icmp code
           cidr_blocks: cidrs
end

#security_group ⇒ Object 



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# File 'lib/terrafying/components/usable.rb', line 6

def security_group
  @security_group
end

#used_by(*other_resources, &block) ⇒ Object 



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# File 'lib/terrafying/components/usable.rb', line 92

def used_by(*other_resources, &block)
  other_resources.map do |other_resource|
    @ports.select(&block).map.map do |port|
      resource :aws_security_group_rule, "#{@name}-to-#{other_resource.name}-#{port[:name]}".gsub(%r{^(\d)}, '_\1'),
               security_group_id: ingress_security_group,
               type: 'ingress',
               from_port: from_port(port[:upstream_port]),
               to_port: to_port(port[:upstream_port]),
               protocol: port[:type] == 'udp' ? 'udp' : 'tcp',
               source_security_group_id: other_resource.egress_security_group

      resource :aws_security_group_rule, "#{other_resource.name}-to-#{@name}-#{port[:name]}".gsub(%r{^(\d)}, '_\1'),
               security_group_id: other_resource.egress_security_group,
               type: 'egress',
               from_port: from_port(port[:downstream_port]),
               to_port: to_port(port[:downstream_port]),
               protocol: port[:type] == 'udp' ? 'udp' : 'tcp',
               source_security_group_id: ingress_security_group
    end
  end
end

#used_by_cidr(*cidrs, &block) ⇒ Object 



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# File 'lib/terrafying/components/usable.rb', line 40

def used_by_cidr(*cidrs, &block)
  cidrs.map do |cidr|
    cidr_ident = cidr.tr('./', '-')

    @ports.select(&block).map do |port|
      resource :aws_security_group_rule, "#{@name}-to-#{cidr_ident}-#{port[:name]}".gsub(%r{^(\d)}, '_\1'),
               security_group_id: ingress_security_group,
               type: 'ingress',
               from_port: from_port(port[:upstream_port]),
               to_port: to_port(port[:upstream_port]),
               protocol: port[:type] == 'udp' ? 'udp' : 'tcp',
               cidr_blocks: [cidr]
    end
  end
end