module AWSDSL::CfnHelpers
Public Instance Methods
format_block_devices(devices)
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# File lib/awsdsl/cfn_helpers.rb, line 50 def format_block_devices(devices) devices.map do |dev| h = { DeviceName: dev[:name] } if dev[:ephemeral] h[:VirtualName] = "ephemeral#{dev[:ephemeral]}" else h[:Ebs] = { VolumeSize: dev[:size], VolumeType: dev[:type] || 'gp2' } end h end end
format_listener(listener)
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# File lib/awsdsl/cfn_helpers.rb, line 15 def format_listener(listener) listener = listener_defaults(listener) hash = { LoadBalancerPort: listener[:loadbalancer_port], InstancePort: listener[:instance_port], Protocol: listener[:proto] } hash[:SSLCertificateId] = listener[:cert] if listener[:cert] hash end
format_policy_statement(policy_statement)
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# File lib/awsdsl/cfn_helpers.rb, line 46 def format_policy_statement(policy_statement) Hash[policy_statement.map { |k, v| [k.to_s.capitalize.to_sym, v] }] end
get_vpc_by_name(vpc)
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# File lib/awsdsl/cfn_helpers.rb, line 73 def get_vpc_by_name(vpc) ec2 = AWS::EC2.new ec2.vpcs.with_tag('Name', vpc).first end
get_zone_for_record(name)
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# File lib/awsdsl/cfn_helpers.rb, line 65 def get_zone_for_record(name) r53 = AWS::Route53.new zones = r53.hosted_zones.sort_by { |z| z.name.split('.').count }.reverse zones.find do |z| name.split('.').reverse.take(z.name.split('.').count) == z.name.split('.').reverse end end
health_check_defaults(health_check)
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# File lib/awsdsl/cfn_helpers.rb, line 26 def health_check_defaults(health_check) hash = { Target: health_check[:target] } hash[:HealthyThreshold] = health_check[:healthy_threshold] || 3 hash[:UnhealthyThreshold] = health_check[:unhealthy_threshold] || 5 hash[:Interval] = health_check[:interval] || 90 hash[:Timeout] = health_check[:timeout] || 60 hash end
listener_defaults(listener)
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# File lib/awsdsl/cfn_helpers.rb, line 8 def listener_defaults(listener) listener[:proto] ||= 'HTTP' listener[:instance_port] ||= listener[:port] listener[:loadbalancer_port] ||= listener[:port] listener end
resolve_security_group(vpc, sg)
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# File lib/awsdsl/cfn_helpers.rb, line 123 def resolve_security_group(vpc, sg) return [sg] if sg.start_with?('sg-') ec2 = AWS::EC2.new v = ec2.vpcs[vpc] if vpc.start_with?('vpc-') v ||= get_vpc_by_name(vpc) v.security_groups.with_tag('Name', sg).map(&:id) end
resolve_security_groups(vpc, security_groups)
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# File lib/awsdsl/cfn_helpers.rb, line 117 def resolve_security_groups(vpc, security_groups) security_groups.map do |sg| resolve_security_group(vpc, sg) end.flatten end
resolve_subnet(vpc, subnet)
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# File lib/awsdsl/cfn_helpers.rb, line 108 def resolve_subnet(vpc, subnet) return [subnet] if subnet.start_with?('subnet-') return subnet_refs(vpc, subnet) if subnet_defined?(vpc, subnet) ec2 = AWS::EC2.new v = ec2.vpcs[vpc] if vpc.start_with?('vpc-') v ||= get_vpc_by_name(vpc) v.subnets.with_tag('Name', subnet).map(&:id) end
resolve_subnets(vpc, subnets)
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# File lib/awsdsl/cfn_helpers.rb, line 84 def resolve_subnets(vpc, subnets) subnets.map do |subnet| resolve_subnet(vpc, subnet) end.flatten(1) end
resolve_vpc(vpc)
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# File lib/awsdsl/cfn_helpers.rb, line 78 def resolve_vpc(vpc) return vpc if vpc.start_with?('vpc-') return Ref("#{vpc.capitalize}VPC") if vpc_defined?(vpc) get_vpc_by_name(vpc).id end
subnet_defined?(vpc, subnet)
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# File lib/awsdsl/cfn_helpers.rb, line 100 def subnet_defined?(vpc, subnet) @stack.vpcs.find {|v| v.name == vpc }.subnets.map(&:name).include?(subnet) end
subnet_refs(vpc, subnet)
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# File lib/awsdsl/cfn_helpers.rb, line 90 def subnet_refs(vpc, subnet) vpc = @stack.vpcs.find {|v| v.name == vpc } subnet = vpc.subnets.find {|s| s.name == subnet} subnet_name = "#{vpc.name.capitalize}#{subnet.name.capitalize}Subnet" azs = subnet.azs || fetch_availability_zones(vpc.region) azs.map do |az| Ref("#{subnet_name}#{az.capitalize}") end end
update_policy_defaults(role)
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# File lib/awsdsl/cfn_helpers.rb, line 37 def update_policy_defaults(role) update_policy = role.update_policy || {} return nil if update_policy[:disable] == true hash = {} hash[:MaxBatchSize] = update_policy[:max_batch] || 1 hash[:MinInstancesInService] = update_policy[:min_inservice] || role.min_size hash[:PauseTime] = update_policy[:pause_time] if update_policy[:pause_time] end
vpc_defined?(vpc)
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# File lib/awsdsl/cfn_helpers.rb, line 104 def vpc_defined?(vpc) @stack.vpcs.map(&:name).include?(vpc) end