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We want to copy a docker image from non-prod to prod ECR account. Is it possible without pulling, retaging and pushing it again.
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In order to transfer a Docker image from one server to another, what you need to do is first export the image to a file, then copy that file over from your current server to the new one using scp or rsync and finally load the image to your new server.
Identify the local image to push. Run the docker images command to list the container images on your system. You can identify an image with the repository:tag value or the image ID in the resulting command output. Tag your image with the Amazon ECR registry, repository, and optional image tag name combination to use.
To get started you simply enable replication, choose the destination accounts and regions you want ECR to copy images to. After this, every time you push an image to the private repository, ECR automatically replicates the image.
No you have to run these commands
docker login OLD_REPO
docker pull OLD_REPO/IMAGE:TAG
docker tag OLD_REPO/IMAGE:TAG NEW_REPO/IMAGE:TAG
docker login NEW_REPO
docker push NEW_REPO/IMAGE:TAG
I have written this program in python to migrate all the images (or a specific image) from a repository to another region or to another account in a different region https://gist.github.com/fabidick22/6a1962697357360f0d73e01950ae962b
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Answer: No, you must pull, tag, and push.
I wrote a bash script for this today. You can specify the number of tagged images that will be copied.
https://gist.github.com/virtualbeck/a635ef6701991f2087384eab7edbb18b
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