7ca153cd38
In most cases, use class names instead of class references. This
works better as it avoids stale class references when using
Unreloader (which does incremental reloading).
This inlines the :applied_tag and :access_tag table names, instead
of using {AppliedTag,AccessTag}.table_name, also to avoid
unnecessary autoloading.
87 lines
3.5 KiB
Ruby
87 lines
3.5 KiB
Ruby
# frozen_string_literal: true
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require_relative "../model"
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class LoadBalancer < Sequel::Model
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many_to_many :vms
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many_to_many :active_vms, class: :Vm, left_key: :load_balancer_id, right_key: :vm_id, join_table: :load_balancers_vms, conditions: {state: ["up"]}
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many_to_many :vms_to_dns, class: :Vm, left_key: :load_balancer_id, right_key: :vm_id, join_table: :load_balancers_vms, conditions: Sequel.~(state: ["evacuating", "detaching"])
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one_to_one :strand, key: :id
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many_to_one :private_subnet
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one_to_many :projects, through: :private_subnet
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one_to_many :load_balancers_vms, key: :load_balancer_id, class: :LoadBalancersVms
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many_to_many :certs, join_table: :certs_load_balancers, left_key: :load_balancer_id, right_key: :cert_id
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one_to_many :certs_load_balancers, key: :load_balancer_id, class: :CertsLoadBalancers
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many_to_one :custom_hostname_dns_zone, class: :DnsZone, key: :custom_hostname_dns_zone_id
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plugin :association_dependencies, load_balancers_vms: :destroy, certs_load_balancers: :destroy
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include ResourceMethods
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include SemaphoreMethods
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include Authorization::TaggableMethods
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include Authorization::HyperTagMethods
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dataset_module Authorization::Dataset
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dataset_module Pagination
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semaphore :destroy, :update_load_balancer, :rewrite_dns_records, :refresh_cert
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def hyper_tag_name(project)
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"project/#{project.ubid}/location/#{private_subnet.display_location}/load-balancer/#{name}"
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end
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def path
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"/location/#{private_subnet.display_location}/load-balancer/#{name}"
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end
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def add_vm(vm)
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DB.transaction do
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super
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Strand.create_with_id(prog: "Vnet::LoadBalancerHealthProbes", label: "health_probe", stack: [{subject_id: id, vm_id: vm.id}], parent_id: strand.id)
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Strand.create_with_id(prog: "Vnet::CertServer", label: "put_certificate", stack: [{subject_id: id, vm_id: vm.id}], parent_id: id)
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incr_rewrite_dns_records
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end
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end
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def detach_vm(vm)
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load_balancers_vms_dataset.where(vm_id: vm.id, state: ["up", "down", "evacuating"]).update(state: "detaching")
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Strand.create_with_id(prog: "Vnet::CertServer", label: "remove_cert_server", stack: [{subject_id: id, vm_id: vm.id}], parent_id: id)
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remove_health_probe(vm.id)
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incr_update_load_balancer
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end
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def evacuate_vm(vm)
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DB.transaction do
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load_balancers_vms_dataset.where(vm_id: vm.id, state: ["up", "down"]).update(state: "evacuating")
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remove_health_probe(vm.id)
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Strand.create_with_id(prog: "Vnet::CertServer", label: "remove_cert_server", stack: [{subject_id: id, vm_id: vm.id}], parent_id: id)
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incr_update_load_balancer
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incr_rewrite_dns_records
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end
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end
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def remove_vm(vm)
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load_balancers_vms_dataset[vm_id: vm.id].destroy
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incr_rewrite_dns_records
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end
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def remove_health_probe(vm_id)
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strand.children_dataset.where(prog: "Vnet::LoadBalancerHealthProbes").all.select { |st| st.stack[0]["subject_id"] == id && st.stack[0]["vm_id"] == vm_id }.map(&:destroy)
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end
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def hostname
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custom_hostname || "#{name}.#{private_subnet.ubid[-5...]}.#{Config.load_balancer_service_hostname}"
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end
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def dns_zone
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custom_hostname_dns_zone || DnsZone[project_id: Config.load_balancer_service_project_id, name: Config.load_balancer_service_hostname]
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end
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def need_certificates?
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return true if certs_dataset.empty?
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certs_dataset.where { created_at > Time.now - 60 * 60 * 24 * 30 * 2 }.empty?
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end
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def active_cert
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certs_dataset.where { created_at > Time.now - 60 * 60 * 24 * 30 * 3 }.order(Sequel.desc(:created_at)).first
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end
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end
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