Menu
I want to use AWS macro Transform::Include with some dynamic parameters for my file.
Resources:
'Fn::Transform':
Name: 'AWS::Include'
Parameters:
TestMacroVariable:
Default: 2
Type: Number
Location: !Sub "s3://${InstallBucketName}/test.yaml"
test.yaml:
DataAutoScalingGroup:
Type: AWS::AutoScaling::AutoScalingGroup
Properties:
LaunchConfigurationName:
Ref: DataLaunchConfiguration
MinSize: '1'
MaxSize: '100'
DesiredCapacity:
Ref: TestMacroVariable
...
After calling: aws cloudformation describe-stack-events --stack-name $stack
I get:
"ResourceStatusReason": "The value of parameter TestMacroVariable under transform Include must resolve to a string, number, boolean or a list of any of these.. Rollback requested by user."
When I try to do it this way:
Resources:
'Fn::Transform':
Name: 'AWS::Include'
Parameters:
TestMacroVariable: 2
Location: !Sub "s3://${InstallBucketName}/test.yaml"
I get:
"ResourceStatusReason": "Template format error: Unresolved resource dependencies [TestMacroVariable] in the Resources block of the template"
Error is the same when I don't provide TestMacroVariable at all.
Tried with different types: String, Number, Boolean, List - none of them work.
485
Referencing a parameter within a template You use the Ref intrinsic function to reference a parameter, and AWS CloudFormation uses the parameter's value to provision the stack. You can reference parameters from the Resources and Outputs sections of the same template.
AWS::NoValueRemoves the corresponding resource property when specified as a return value in the Fn::If intrinsic function. For example, you can use the AWS::NoValue parameter when you want to use a snapshot for an Amazon RDS DB instance only if a snapshot ID is provided.
The intrinsic function Fn::ImportValue returns the value of an output exported by another stack. You typically use this function to create cross-stack references. In the following example template snippets, Stack A exports VPC security group values and Stack B imports them.
When you use a dynamic reference, CloudFormation retrieves the value of the specified reference when necessary during stack and change set operations. CloudFormation currently supports the following dynamic reference patterns: ssm, for plaintext values stored in AWS Systems Manager Parameter Store.
As i know you cannot have anything other than Location key in the Parameters section of the AWS::Include. Check here AWS DOC
90
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
