docker tags copy

docker-cp-repo.sh

#!/bin/bash
# usage: docker-cp-repo.sh src_repo dst_repo

set -euo pipefail

SRC_REPO=$1
DST_REPO=$2

SRC_TAGS=$(curl -s https://registry.hub.docker.com/v1/repositories/${SRC_REPO}/tags | jq -r '.[].name')
DST_TAGS=$(curl -s https://registry.hub.docker.com/v1/repositories/${DST_REPO}/tags | jq -r '.[].name')

ONE_SIDE_TAGS=$(echo -e "${SRC_TAGS}\n${DST_TAGS}" | sort | uniq -u)
SRC_ONLY_TAGS=$(echo -e "${SRC_TAGS}\n${ONE_SIDE_TAGS}" | sort | uniq -d)

for t in ${SRC_ONLY_TAGS}; do
    echo $t
    docker pull "${SRC_REPO}:$t"
    docker tag "${SRC_REPO}:$t" "${DST_REPO}:$t"
    docker push "${DST_REPO}:$t"
done

deleteTags() {
    docker images | grep "$1" | awk '{print $2}' | xargs -I{} docker rmi $1:{}
}

# deleteTags "${SRC_REPO}"
# deleteTags "${DST_REPO}"