Template format error: Unrecognized parameter type: Boolean
But many of the resources have Boolean parameter, like AWS::RDS::DBInstance -> MultiAZ or its StorageEncrypted property.
Solution? Use following workaround:
- a "yes" / "no" selection Parameter with String type (or really any two values which make sense to your use case / language),
- a Condition (converting String to a semi-Boolean) and
- in the resource's property, use the intrinsic function Fn:If to convert semi-Boolean result of the condition into real Boolean
Unresolved resource dependencies [DbRdsMultiAZCondition] in the Resources block of the template
It's long and ugly, but it works :-)