Migrate docker image from Docker Hub to Github Container Registry

migrate.sh

#! /bin/bash

read -p "Enter docker image: " image
read -p "Enter source docker image tag: " tag
read -p "Enter target docker image tag: " target_tag

github_user="ntheanh201"

docker_image="$github_user/$image:$tag"
new_image="ghcr.io/$github_user/$image:$target_tag"

echo "image: $docker_image"
echo "new image: $new_image"

docker pull $docker_image
docker tag $docker_image $new_image
docker push $new_image