AWS CloudFormation Concepts Condition Functions

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External

Condition Functions

Internal

Overview

As it is the case for intrinsic functions, condition functions have a full function name, and a short form. For more details see:

Intrinsic Functions - Overview

Fn::If: !If

Fn::And: !And

Fn::Equals: !Equals

!Equals ['something', !Ref SomethingElse]

Fn::Not: !Not

Fn::Or: !Or

Expressions

Expressions can use pseudo-parameters and template input parameters. Expressions are useful when declaring Conditions.

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