Mirror a set of packages from public repositories to a new private ECR

mirror_repos.sh

#!/bin/bash

# Define the containers you want to mirror from Docker Hub to ECR
containers=(\
	"confluentinc/cp-zookeeper:6.1.11"\
        "confluentinc/cp-kafka:6.1.11"\
	"minio/mc:RELEASE.2023-04-12T02-21-51Z" \
	"hashicorp/vault:1.13" \
	"postgres:11-alpine" \
	"alpine:3.16" \
	"alpine:3.17" \
	"redis:7-alpine" \
	"postgres:11-alpine" \
	"postgres:15-alpine" \
	"golang:1.20-alpine" \
	"golang:1.16-alpine" \
	"quay.io/coreos/etcd:v3.5.8"

    )

# Set your AWS region and ECR repository
region="us-east-1"
repo_prefix="716215456011.dkr.ecr.us-east-1.amazonaws.com"

for container in "${containers[@]}"
do
  # Pull the container from Docker Hub
  docker pull "$container"

  # Parse the image name and tag
  image_name=$(echo "$container" | cut -d':' -f1)
  domain=$(echo "$image_name" | cut -d'/' -f1)

  # Strip the domain from the image name if present
  if [[ "$domain" == *"."* ]]; then
    image_name=$(echo "$image_name" | sed -E 's/^[^\/]*\/([^:]+):?.*$/\1/' )
  fi


  tag=$(echo "$container" | cut -d':' -f2)

  # Create the ECR repository if it doesn't exist
  aws ecr describe-repositories --region "$region" --repository-names "$image_name" >/dev/null 2>&1 || \
  aws ecr create-repository --region "$region" --repository-name "$image_name"

  # Tag and push the image to ECR
  full_repo_name="$repo_prefix/$image_name"
  docker tag "$container" "$full_repo_name:$tag"
  docker push "$full_repo_name:${tag/\//\\/}"


  # Remove the local copy of the image
  docker rmi "$container" "$full_repo_name:$tag"
done