I can write a simple Jenkinsfile that can do this for you. The Jenkinsfile will
1 - clone your code from git repo.
2 - Look for Dockerfile and build image using it.
3 - Tag and push image to ECR.
I am AWS Certified Developer - Associate. I have a great hands on experience working with DevOps and CI/CD pipeline. I can write a simple Jenkins code which will do your task very smoothly and within no time.
Thanks in advance.
Ronak
I have set up the complete deployment pipelines for my company recently in all environments. I can shell out 3-4hrs everyday on the task and also work on weekends. I can do the job for you asap. I've good amount of experience working on dockers and as well as aws services like ecs.