Cloudformation-Vorlage mit Referenz oder TopLevel Fn :: FindInMap

Question

ich die folgende Abbildung in meiner Vorlage

"Mappings": { 
"TimeBasedAutoScale" : { 
    "days" : { 
    "weekend" : {"0":"off","1":"off","2":"off","3":"off","4":"off","5":"off","6":"off","7":"off","8":"off","9":"off","10":"off","11":"off","12":"off","13":"off","14":"off","15":"off","16":"off","17":"off","18":"off","19":"off","20":"off","21":"off","22":"off","23":"off"}, 
    "weekday1" : {"0":"off","1":"off","2":"on","3":"on","4":"on","5":"on","6":"on","7":"on","8":"on","9":"on","10":"on","11":"on","12":"on","13":"on","14":"on","15":"on","16":"on","17":"on","18":"on","19":"on","20":"on","21":"on","22":"off","23":"off"}, 
    "weekday2" : {"0":"off","1":"off","2":"off","3":"on","4":"on","5":"on","6":"on","7":"on","8":"on","9":"on","10":"on","11":"on","12":"on","13":"on","14":"on","15":"on","16":"on","17":"on","18":"on","19":"on","20":"on","21":"on","22":"off","23":"off"} 
    } 
}, 
"TimeBasedSchedule": { 
    "6AMTimeBasedSchedule" : { 
    "schedule" : { 
     "Monday" : { "Fn::FindInMap" : [ "TimeBasedAutoScale", "days", "weekday1"]}, 
     "Tuesday" : { "Fn::FindInMap" : [ "TimeBasedAutoScale", "days", "weekday1"]}, 
     "Wednesday" :{ "Fn::FindInMap" : [ "TimeBasedAutoScale", "days", "weekday1"]}, 
     "Thursday" : { "Fn::FindInMap" : [ "TimeBasedAutoScale", "days", "weekday1"]}, 
     "Friday" : { "Fn::FindInMap" : [ "TimeBasedAutoScale", "days", "weekday1"]}, 
     "Saturday" : { "Fn::FindInMap" : [ "TimeBasedAutoScale", "days", "weekend"]}, 
    "Sunday" : { "Fn::FindInMap" : [ "TimeBasedAutoScale", "days", "weekend"]} 
    } 
}, 
"7AMTimeBasedSchedule" : { 
    "schedule" : { 
    "Monday" : { "Fn::FindInMap" : [ "TimeBasedAutoScale", "days", "weekday1"]}, 
    "Tuesday" : { "Fn::FindInMap" : [ "TimeBasedAutoScale", "days", "weekday1"]}, 
    "Wednesday" :{ "Fn::FindInMap" : [ "TimeBasedAutoScale", "days", "weekday1"]}, 
    "Thursday" : { "Fn::FindInMap" : [ "TimeBasedAutoScale", "days", "weekday1"]}, 
    "Friday" : { "Fn::FindInMap" : [ "TimeBasedAutoScale", "days", "weekday1"]}, 
    "Saturday" : { "Fn::FindInMap" : [ "TimeBasedAutoScale", "days", "weekend"]}, 
    "Sunday" : { "Fn::FindInMap" : [ "TimeBasedAutoScale", "days", "weekend"]} 
    } 
}} 

jedoch definiert haben, die Validierung fehlschlägt und nach looking at the docs kann ich sehen, warum. Die Zuordnungsfunktion benötigt einen dreistufigen Schlüssel und der Wert kann nur eine Zeichenfolge oder eine Liste sein.

Gibt es trotzdem die oben genannten mit einer reference oder besser Zuordnung?

Answer 1

Um eine mehrstufige Zuordnung zu erreichen, wenden Sie Ihre eingebetteten Fn::FindInMap intrinsischen Funktionen direkt im Abschnitt Resources oder Outputs an.

Hier ist eine komplette Arbeitsversion Ihres Beispiel:

{ 
    "Description": "Return 'on' or 'off' according to the provided schedule, hour of day, and day of week.", 
    "Mappings": { 
    "TimeBasedAutoScale": { 
     "weekend" : {"0":"off","1":"off","2":"off","3":"off","4":"off","5":"off","6":"off","7":"off","8":"off","9":"off","10":"off","11":"off","12":"off","13":"off","14":"off","15":"off","16":"off","17":"off","18":"off","19":"off","20":"off","21":"off","22":"off","23":"off"}, 
     "weekday1" : {"0":"off","1":"off","2":"on","3":"on","4":"on","5":"on","6":"on","7":"on","8":"on","9":"on","10":"on","11":"on","12":"on","13":"on","14":"on","15":"on","16":"on","17":"on","18":"on","19":"on","20":"on","21":"on","22":"off","23":"off"}, 
     "weekday2" : {"0":"off","1":"off","2":"off","3":"on","4":"on","5":"on","6":"on","7":"on","8":"on","9":"on","10":"on","11":"on","12":"on","13":"on","14":"on","15":"on","16":"on","17":"on","18":"on","19":"on","20":"on","21":"on","22":"off","23":"off"} 
    }, 
    "TimeBasedSchedule": { 
     "6AMTimeBasedSchedule": { 
     "Monday": "weekday1", 
     "Tuesday": "weekday1", 
     "Wednesday": "weekday1", 
     "Thursday": "weekday1", 
     "Friday": "weekday1", 
     "Saturday": "weekend", 
     "Sunday": "weekend" 
     }, 
     "7AMTimeBasedSchedule": { 
     "Monday": "weekday2", 
     "Tuesday": "weekday2", 
     "Wednesday": "weekday2", 
     "Thursday": "weekday2", 
     "Friday": "weekday2", 
     "Saturday": "weekend", 
     "Sunday": "weekend" 
     } 
    } 
    }, 
    "Parameters": { 
    "Schedule": { 
     "Description": "Selected schedule", 
     "Type": "String", 
     "AllowedValues" : [ "6AMTimeBasedSchedule", "7AMTimeBasedSchedule" ], 
     "Default": "6AMTimeBasedSchedule" 
    }, 
    "DayOfWeek": { 
     "Description": "Day of week", 
     "Type": "String", 
     "AllowedValues" : [ "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday" ], 
     "Default": "Monday" 
    }, 
    "HourOfDay": { 
     "Description": "Hour of Day", 
     "Type": "Number", 
     "MinValue": "0", 
     "MaxValue": "23", 
     "Default": "0" 
    } 
    }, 
    "Resources": { 
    "Dummy": { 
     "Type": "AWS::CloudFormation::WaitConditionHandle" 
    } 
    }, 
    "Outputs": { 
    "Result": { 
     "Value": { 
     "Fn::FindInMap": [ 
      "TimeBasedAutoScale", 
      {"Fn::FindInMap": ["TimeBasedSchedule", "6AMTimeBasedSchedule", {"Ref": "DayOfWeek"}]}, 
      {"Ref": "HourOfDay"} 
     ] 
     } 
    } 
    } 
}