Class: Terrafying::Components::LoadBalancer
- Inherits:
-
Terrafying::Context
- Object
- Terrafying::Context
- Terrafying::Components::LoadBalancer
- Includes:
- Usable
- Defined in:
- lib/terrafying/components/loadbalancer.rb
Instance Attribute Summary collapse
-
#alias_config ⇒ Object
readonly
Returns the value of attribute alias_config.
-
#id ⇒ Object
readonly
Returns the value of attribute id.
-
#name ⇒ Object
readonly
Returns the value of attribute name.
-
#ports ⇒ Object
readonly
Returns the value of attribute ports.
-
#security_group ⇒ Object
readonly
Returns the value of attribute security_group.
-
#targets ⇒ Object
readonly
Returns the value of attribute targets.
-
#type ⇒ Object
readonly
Returns the value of attribute type.
Class Method Summary collapse
Instance Method Summary collapse
- #alb_cert(cert_arn, port_ident) ⇒ Object
- #alb_certs(port, port_ident) ⇒ Object
- #application? ⇒ Boolean
- #attach(set) ⇒ Object
- #autoscale(set, target_value:, disable_scale_in:) ⇒ Object
- #create_in(vpc, name, options = {}) ⇒ Object
- #find_in(vpc, name) ⇒ Object
- #forward_to_tg(port, port_ident, vpc) ⇒ Object
-
#initialize ⇒ LoadBalancer
constructor
A new instance of LoadBalancer.
- #make_identifier(type, vpc_name, name) ⇒ Object
- #network? ⇒ Boolean
- #register_target(target_group, listener) ⇒ Object
- #subnets_for(subnets) ⇒ Object
Methods included from Usable
#egress_security_group, #ingress_security_group, #path_mtu_setup!, #pingable_by, #pingable_by_cidr, #used_by, #used_by_cidr
Constructor Details
#initialize ⇒ LoadBalancer
Returns a new instance of LoadBalancer.
26 27 28 |
# File 'lib/terrafying/components/loadbalancer.rb', line 26 def initialize super end |
Instance Attribute Details
#alias_config ⇒ Object (readonly)
Returns the value of attribute alias_config.
12 13 14 |
# File 'lib/terrafying/components/loadbalancer.rb', line 12 def alias_config @alias_config end |
#id ⇒ Object (readonly)
Returns the value of attribute id.
12 13 14 |
# File 'lib/terrafying/components/loadbalancer.rb', line 12 def id @id end |
#name ⇒ Object (readonly)
Returns the value of attribute name.
12 13 14 |
# File 'lib/terrafying/components/loadbalancer.rb', line 12 def name @name end |
#ports ⇒ Object (readonly)
Returns the value of attribute ports.
12 13 14 |
# File 'lib/terrafying/components/loadbalancer.rb', line 12 def ports @ports end |
#security_group ⇒ Object (readonly)
Returns the value of attribute security_group.
12 13 14 |
# File 'lib/terrafying/components/loadbalancer.rb', line 12 def security_group @security_group end |
#targets ⇒ Object (readonly)
Returns the value of attribute targets.
12 13 14 |
# File 'lib/terrafying/components/loadbalancer.rb', line 12 def targets @targets end |
#type ⇒ Object (readonly)
Returns the value of attribute type.
12 13 14 |
# File 'lib/terrafying/components/loadbalancer.rb', line 12 def type @type end |
Class Method Details
.create_in(vpc, name, options = {}) ⇒ Object
18 19 20 |
# File 'lib/terrafying/components/loadbalancer.rb', line 18 def self.create_in(vpc, name, = {}) LoadBalancer.new.create_in vpc, name, end |
.find_in(vpc, name) ⇒ Object
22 23 24 |
# File 'lib/terrafying/components/loadbalancer.rb', line 22 def self.find_in(vpc, name) LoadBalancer.new.find_in vpc, name end |
Instance Method Details
#alb_cert(cert_arn, port_ident) ⇒ Object
185 186 187 188 189 190 191 |
# File 'lib/terrafying/components/loadbalancer.rb', line 185 def alb_cert(cert_arn, port_ident) cert_ident = "#{port_ident}-#{Digest::SHA2.hexdigest(cert_arn)[0..8]}" resource :aws_lb_listener_certificate, cert_ident, listener_arn: "${aws_lb_listener.#{port_ident}.arn}", certificate_arn: cert_arn end |
#alb_certs(port, port_ident) ⇒ Object
172 173 174 175 176 177 178 179 180 181 182 183 |
# File 'lib/terrafying/components/loadbalancer.rb', line 172 def alb_certs(port, port_ident) return {} unless port.key? :ssl_certificate certs = Array(port[:ssl_certificate]) default_cert = certs.shift certs.map { |cert| alb_cert(cert, port_ident) } { ssl_policy: 'ELBSecurityPolicy-TLS-1-2-2017-01', certificate_arn: default_cert } end |
#application? ⇒ Boolean
193 194 195 |
# File 'lib/terrafying/components/loadbalancer.rb', line 193 def application? @type == 'application' end |
#attach(set) ⇒ Object
205 206 207 208 209 210 |
# File 'lib/terrafying/components/loadbalancer.rb', line 205 def attach(set) raise "Dont' know how to attach object to LB" unless set.respond_to?(:attach_load_balancer) set.attach_load_balancer(self) @security_group = set.ingress_security_group if network? end |
#autoscale(set, target_value:, disable_scale_in:) ⇒ Object
212 213 214 215 216 |
# File 'lib/terrafying/components/loadbalancer.rb', line 212 def autoscale(set, target_value:, disable_scale_in:) raise "Dont' know how to attach object to LB" unless set.respond_to?(:autoscale_on_load_balancer) set.autoscale_on_load_balancer(self, target_value: target_value, disable_scale_in: disable_scale_in) end |
#create_in(vpc, name, options = {}) ⇒ Object
68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 |
# File 'lib/terrafying/components/loadbalancer.rb', line 68 def create_in(vpc, name, = {}) = { ports: [], public: false, subnets: vpc.subnets.fetch(:private, []), cross_zone_load_balancing: false, hex_ident: false, idle_timeout: nil, tags: {}, security_groups: [] }.merge() @tags = { Name: name }.merge([:tags]) @hex_ident = [:hex_ident] @ports = enrich_ports([:ports]) l4_ports = @ports.select { |p| is_l4_port(p) } if l4_ports.count > 0 && l4_ports.count < @ports.count raise 'Ports have to either be all layer 4 or 7' end @type = l4_ports.count == 0 ? 'application' : 'network' ident = make_identifier(@type, vpc.name, name) @name = ident if application? @security_group = resource :aws_security_group, ident, name: "loadbalancer-#{ident}", description: "Describe the ingress and egress of the load balancer #{ident}", tags: @tags.merge( loadbalancer_name: ident ), vpc_id: vpc.id path_mtu_setup! end if network? && [:security_groups].count > 0 warn 'You cannot set security groups on a network loadbalancer, set them on the instances behind it.' end @id = resource :aws_lb, ident, { name: ident, load_balancer_type: type, internal: ![:public], tags: @tags }.merge(subnets_for([:subnets])) .merge(application? ? { security_groups: [@security_group] + [:security_groups], idle_timeout: [:idle_timeout], access_logs: [:access_logs] } : {}) .merge(network? ? { enable_cross_zone_load_balancing: [:cross_zone_load_balancing] } : {}) .compact @targets = [] @ports.each do |port| port_ident = "#{ident}-#{port[:downstream_port]}" default_action = port.key?(:action) ? port[:action] : forward_to_tg(port, port_ident, vpc) = alb_certs(port, port_ident) listener = resource :aws_lb_listener, port_ident, { load_balancer_arn: @id, port: port[:upstream_port], protocol: port[:type].upcase, default_action: default_action }.merge() register_target(default_action[:target_group_arn], listener) if default_action[:type] == 'forward' end @alias_config = { name: output_of(:aws_lb, ident, :dns_name), zone_id: output_of(:aws_lb, ident, :zone_id), evaluate_target_health: true } self end |
#find_in(vpc, name) ⇒ Object
30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 |
# File 'lib/terrafying/components/loadbalancer.rb', line 30 def find_in(vpc, name) @type = 'network' ident = make_identifier(@type, vpc.name, name) begin lb = aws.lb_by_name(ident) rescue StandardError @type = 'application' ident = make_identifier(@type, vpc.name, name) lb = aws.lb_by_name(ident) @security_group = aws.(loadbalancer_name: ident) end @id = lb.load_balancer_arn @name = ident target_groups = aws.target_groups_by_lb(@id) @targets = target_groups.map do |tg| Struct::Target.new( target_group: tg.target_group_arn, listener: nil ) end @ports = enrich_ports(target_groups.map(&:port).sort.uniq) @alias_config = { name: lb.dns_name, zone_id: lb.canonical_hosted_zone_id, evaluate_target_health: true } self end |
#forward_to_tg(port, port_ident, vpc) ⇒ Object
151 152 153 154 155 156 157 158 159 160 161 162 163 |
# File 'lib/terrafying/components/loadbalancer.rb', line 151 def forward_to_tg(port, port_ident, vpc) target_group = resource :aws_lb_target_group, port_ident, { name: port_ident, port: port[:downstream_port], protocol: port[:type].upcase, vpc_id: vpc.id }.merge(port.key?(:health_check) ? { health_check: port[:health_check] } : {}) { type: 'forward', target_group_arn: target_group } end |
#make_identifier(type, vpc_name, name) ⇒ Object
218 219 220 221 222 223 |
# File 'lib/terrafying/components/loadbalancer.rb', line 218 def make_identifier(type, vpc_name, name) gen_id = "#{type}-#{tf_safe(vpc_name)}-#{name}" return Digest::SHA2.hexdigest(gen_id)[0..24] if @hex_ident || gen_id.size > 26 gen_id[0..31] end |
#network? ⇒ Boolean
201 202 203 |
# File 'lib/terrafying/components/loadbalancer.rb', line 201 def network? @type == 'network' end |
#register_target(target_group, listener) ⇒ Object
165 166 167 168 169 170 |
# File 'lib/terrafying/components/loadbalancer.rb', line 165 def register_target(target_group, listener) @targets << Struct::Target.new( target_group: target_group, listener: listener ) end |
#subnets_for(subnets) ⇒ Object
197 198 199 |
# File 'lib/terrafying/components/loadbalancer.rb', line 197 def subnets_for(subnets) { subnets: subnets.map(&:id) } end |