Lambda annotations, AOT, Docker, Cloudformation Azure Devops

[AadiGitt]

Hi,
Currently i am using lambda annotation which generates cloud formation template to be used in azure devops for CI-CD pipeline in .net 8. Currently in azure devops but would need to move to bit bucket for my source repository.
I would like to explore AOT. For AOT i would need to use docker( I am new to this).

Steps 1) I believe i would need to create an ECR image for each lambda function defined by annotation via docker and push the image
Capture the image url created to pass on to the next step.
I think this partially defeats the purpose of using lambda annotations to begin with.
Steps 2) In my cloudformation template would need to use the imageUri for function.

I would like to learn more however looking for guidance with steps to follow to achieve automation.