mirror.sh

#!/bin/bash

set -e

filename="repo_dockerhub.conf"
source_registry=""
destination_prefix="hub/"
destination_registry="xxxx.dkr.ecr.us-east-1.amazonaws.com/${destination_prefix}"

existing_repos=$(aws ecr describe-repositories | jq -r '.repositories[].repositoryName')

# Read file to pull images
while IFS='' read -r repo || [[ -n "$repo" ]]; do
    echo "Start to pull/tag/push/rmi the image: $repo"

    if ! echo $existing_repos | grep -q "${destination_prefix}${repo}"; then
        echo "-> creating repo ${source_registry}${repo}:${tag}"
        aws ecr create-repository --repository-name "${destination_prefix}${repo}"
    else
        echo "-> existing repo ${source_registry}${repo}"
    fi

    source_tags=""
    destination_tags=""

    tags=$(wget -q https://registry.hub.docker.com/v1/repositories/$repo/tags -O -  | sed -e 's/[][]//g' -e 's/"//g' -e 's/ //g' | tr '}' '\n'  | awk -F: '{print $3}')
    for tag in $tags; do
        source_tags="${source_tags} ${source_registry}${repo}:${tag}"
        destination_tags="${destination_tags} ${destination_registry}${repo}:${tag}"

        echo "-> pull ${source_registry}${repo}:${tag}"
        docker pull "${source_registry}${repo}:${tag}"

        echo "-> tag ${destination_registry}${repo}:${tag}"
        docker tag "${source_registry}${repo}:${tag}" "${destination_registry}${repo}:${tag}"

        echo "-> push ${destination_registry}${repo}:${tag}"
        docker push "${destination_registry}${repo}:${tag}"
    done

    echo "-> rmi ${source_registry}${repo}:*"
    docker rmi $source_tags

    echo "-> rmi ${destination_registry}${repo}:*"
    docker rmi $destination_tags
done < "$filename"