'how to write a makefile for gitlab -ci for python code?

I would like to write a makefile for my python project, and would like to run this project at amazon airflow called (mwaa). Can somebody help me with link or any video where I can learn to write a makefile step by step, and also if it has some packaging steps for deployment to mwaa. Apologies I am new into gitlab CI-CD and have no clue about the deployment process.



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