How to create a new version of a Lambda function using CloudFormation?

Question

I\'m trying to create a new version of a Lambda function using CloudFormation.

I want to have multiple versions of the same Lambda function so that I can (a) point a

Answer 1

Worked for me the following:

"LambdaAlias": {
            "Type": "AWS::Lambda::Alias",
            "DeletionPolicy" : "Retain",
            "Properties": {
                "FunctionName": {
                    "Ref": "LambdaFunction"
                },
                "FunctionVersion": {
                    "Fn::GetAtt": ["LambdaVersion","Version"]
                },
                "Name": "MyAlias"
            }