Replicate ECR Image from AWS from one region to another region
Step 1. Go To Amazon ECR > Select Private Registry of Source ECR Image.
Step 2. Edit Replication configuration > Add Rule > Enable Cross-region replication ( Mark in red ) > Click Next.
Step 3. Click Next > Choose Cross–region from Drop down list for replication and Click next.
Step 4. Add Filters as per the requirement, as it is an optional field; based on the filter, it will replicate only the filtered repository to the destination region.
Step 5. Now review your configuration; you can see json file for your setup configuration.
Now after reviewing, you can submit your rule.
Now as and when the source region got the new image in the repository same time, it will be reflected in the Destination region.
Note. If you are facing any issues, then please review your filter criteria or IAM permission.