Fetches the value of an output from a different Stack in the same account and region. You can specify a optional AWS profile to connect to a different account/region.
If the Stack whose output is being fetched is in the same StackGroup, the basename of that Stack can be used.
Syntax:
parameters/sceptre_user_data:
<name>:
!stack_output_external <full_stack_name>::<output_name>
<optional-aws-profile-name>Example:
parameters:
VpcIdParameter: !stack_output_external prj-network-vpc::VpcIdOutput prod