class SparkleFormation::Translation::Heat
Translation
for Heat
(HOT)
Constants
- FN_MAPPING
- MAP
Heat
translation mapping- REF_MAPPING
Public Instance Methods
Custom mapping for ASG launch configuration
@param value [Object] original property value @param args [Hash] @option args [Hash] :new_resource @option args [Hash] :new_properties @option args [Hash] :original_resource @return [Array<String, Object>] name and new value @todo implement
# File lib/sparkle_formation/translation/heat.rb, line 314 def autoscaling_group_launchconfig(value, args = {}) ["resource", value] end
Update any launch configuration which define load balancers to ensure they are attached to the correct resources when multiple listeners (ports) have been defined resulting in multiple isolated LB resources
# File lib/sparkle_formation/translation/heat.rb, line 173 def complete_launch_config_lb_setups translated["resources"].find_all do |resource_name, resource| resource["type"] == "OS::Heat::AutoScalingGroup" end.each do |name, value| if lbs = value["properties"].delete("load_balancers") lbs.each do |lb_ref| lb_name = resource_name(lb_ref) lb_resource = translated["resources"][lb_name] vip_resources = translated["resources"].find_all do |k, v| k.match(/#{lb_name}Vip\d+/) && v["type"] == "OS::Neutron::LoadBalancer" end value["properties"]["load_balancers"] = vip_resources.map do |vip_name| {"get_resource" => vip_name} end end end end true end
Default keys to snake cased format (underscore)
@param key [String, Symbol] @return [String]
# File lib/sparkle_formation/translation/heat.rb, line 322 def default_key_format(key) snake(key) end
Finalizer for the neutron load balancer resource. This finalizer may generate new resources if the load balancer has multiple listeners defined (neutron lb implementation defines multiple isolated resources sharing a common virtual IP)
@param resource_name [String] @param new_resource [Hash] @param old_resource [Hash] @return [Object] rubocop:disable Metrics/MethodLength
# File lib/sparkle_formation/translation/heat.rb, line 78 def neutron_loadbalancer_finalizer(resource_name, new_resource, old_resource) listeners = new_resource["Properties"].delete("listeners") || [] healthcheck = new_resource["Properties"].delete("health_check") subnet = (new_resource["Properties"].delete("subnets") || []).first # if health check is provided, create resource and apply to # all pools generated if healthcheck healthcheck_name = "#{resource_name}HealthCheck" check = { healthcheck_name => { "Type" => "OS::Neutron::HealthMonitor", "Properties" => {}.tap { |properties| {"Timeout" => "timeout", "Interval" => "delay", "HealthyThreshold" => "max_retries"}.each do |aws, hot| if healthcheck[aws] properties[hot] = healthcheck[aws] end end type, port, path = healthcheck["Target"].split(%r{(:|/.*)}).find_all { |x| x != ":" } properties["type"] = type if path properties["url_path"] = path end }, }, } translated["Resources"].merge!(check) end base_listener = listeners.shift base_pool_name = "#{resource_name}Pool" base_pool = { base_pool_name => { "Type" => "OS::Neutron::Pool", "Properties" => { "lb_method" => "ROUND_ROBIN", "monitors" => [ {"get_resource" => healthcheck_name}, ], "protocol" => base_listener["Protocol"], "vip" => { "protocol_port" => base_listener["LoadBalancerPort"], }, "subnet" => subnet, }, }, } if healthcheck base_pool[base_pool_name]["Properties"].merge( "monitors" => [ {"get_resource" => healthcheck_name}, ], ) end translated["Resources"].merge!(base_pool) new_resource["Properties"]["pool_id"] = {"get_resource" => base_pool_name} new_resource["Properties"]["protocol_port"] = base_listener["InstancePort"] listeners.each_with_index do |listener, count| pool_name = "#{resource_name}PoolVip#{count}" pool = { pool_name => { "Type" => "OS::Neutron::Pool", "Properties" => { "lb_method" => "ROUND_ROBIN", "protocol" => listener["Protocol"], "subnet" => subnet, "vip" => { "protocol_port" => listener["LoadBalancerPort"], }, }, }, } if healthcheck pool[pool_name]["Properties"].merge( "monitors" => [ {"get_resource" => healthcheck_name}, ], ) end lb_name = "#{resource_name}Vip#{count}" lb = {lb_name => MultiJson.load(MultiJson.dump(new_resource))} lb[lb_name]["Properties"]["pool_id"] = {"get_resource" => pool_name} lb[lb_name]["Properties"]["protocol_port"] = listener["InstancePort"] translated["Resources"].merge!(pool) translated["Resources"].merge!(lb) end end
Finalizer for the neutron net resource. Scrub properties.
@param resource_name [String] @param new_resource [Hash] @param old_resource [Hash] @return [TrueClass]
# File lib/sparkle_formation/translation/heat.rb, line 285 def neutron_net_finalizer(resource_name, new_resource, old_resource) new_resource["Properties"].clear true end
Finalizer for the neutron subnet resource. Creates a stub network to attach subnet if availability zones are defined (aws classic)
@param resource_name [String] @param new_resource [Hash] @param old_resource [Hash] @return [TrueClass]
# File lib/sparkle_formation/translation/heat.rb, line 267 def neutron_subnet_finalizer(resource_name, new_resource, old_resource) azs = new_resource["Properties"].delete("availability_zone") if azs network_name = "NetworkFor#{resource_name}" translated["Resources"][network_name] = { "type" => "OS::Neutron::Network", } new_resource["Properties"]["network"] = {"get_resource" => network_name} end true end
Custom mapping for block device
@param value [Object] original property value @param args [Hash] @option args [Hash] :new_resource @option args [Hash] :new_properties @option args [Hash] :original_resource @return [Array<String, Object>] name and new value @todo implement
# File lib/sparkle_formation/translation/heat.rb, line 202 def nova_server_block_device_mapping(value, args = {}) ["block_device_mapping", value] end
Finalizer for the nova server resource. Fixes bug with remotes in metadata
@param resource_name [String] @param new_resource [Hash] @param old_resource [Hash] @return [Object]
# File lib/sparkle_formation/translation/heat.rb, line 227 def nova_server_finalizer(resource_name, new_resource, old_resource) if old_resource["Metadata"] new_resource["Metadata"] = old_resource["Metadata"] proceed = new_resource["Metadata"] && new_resource["Metadata"]["AWS::CloudFormation::Init"] && config = new_resource["Metadata"]["AWS::CloudFormation::Init"]["config"] if proceed # NOTE: This is a stupid hack since HOT gives the URL to # wget directly and if special characters exist, it fails if files = config["files"] files.each do |key, args| if args["source"] if args["source"].is_a?(String) args["source"].replace("\"#{args["source"]}\"") else args["source"] = { "Fn::Join" => [ "", [ "\"", args["source"], "\"", ], ], } end end end end end end end
Custom mapping for server user data
@param value [Object] original property value @param args [Hash] @option args [Hash] :new_resource @option args [Hash] :new_properties @option args [Hash] :original_resource @return [Array<String, Object>] name and new value
# File lib/sparkle_formation/translation/heat.rb, line 214 def nova_server_user_data(value, args = {}) args[:new_properties][:user_data_format] = "RAW" args[:new_properties][:config_drive] = "true" [:user_data, Hash[value.values.first]] end
Finalizer applied to all new resources
@param resource_name [String] @param new_resource [Hash] @param old_resource [Hash] @return [TrueClass]
# File lib/sparkle_formation/translation/heat.rb, line 296 def resource_finalizer(resource_name, new_resource, old_resource) %w(DependsOn Metadata).each do |key| if old_resource[key] && !new_resource[key] new_resource[key] = old_resource[key] end end true end
Translate stack definition
@return [TrueClass] @note this is an override to return in proper HOT format @todo still needs replacements of functions and pseudo-params
SparkleFormation::Translation#translate!
# File lib/sparkle_formation/translation/heat.rb, line 11 def translate! super cache = MultiJson.load(MultiJson.dump(translated)) # top level cache.each do |k, v| translated.delete(k) translated[snake(k).to_s] = v end # params cache.fetch("Parameters", {}).each do |k, v| translated["parameters"][k] = Hash[ v.map do |key, value| if key == "Type" [snake(key).to_s, value.downcase] elsif key == "AllowedValues" # @todo fix this up to properly build constraints ["constraints", [{"allowed_values" => value}]] else [snake(key).to_s, value] end end ] end # resources cache.fetch("Resources", {}).each do |r_name, r_value| translated["resources"][r_name] = Hash[ r_value.map do |k, v| [snake(k).to_s, v] end ] end # outputs cache.fetch("Outputs", {}).each do |o_name, o_value| translated["outputs"][o_name] = Hash[ o_value.map do |k, v| [snake(k).to_s, v] end ] end translated.delete("awstemplate_format_version") translated["heat_template_version"] = "2013-05-23" # no HOT support for mappings, so remove and clean pseudo # params in refs if translated["resources"] translated["resources"] = dereference_processor(translated["resources"], ["Fn::FindInMap", "Ref"]) translated["resources"] = rename_processor(translated["resources"]) end if translated["outputs"] translated["outputs"] = dereference_processor(translated["outputs"], ["Fn::FindInMap", "Ref"]) translated["outputs"] = rename_processor(translated["outputs"]) end translated.delete("mappings") complete_launch_config_lb_setups true end