List all tags for a Docker image

docker-tags

# Add this function somewhere useful like ~/.bash_login or ~/.zlogin
docker-tags() {
  if [ -z "$@" ]; then
    echo "usage: docker-tags org/repo" >&2
  else
    TOKEN="$(security find-generic-password -a "$USER" -s dockerhub-token -w)"
    if [ -z "$TOKEN" ]; then
      echo "ensure MacOS keychain has: name: dockerhub-token acct: $USER" >&2
    else
      if ! grep -q / <<< "$@"; then
        ns_repo="library/$@"
      else
        ns_repo="$@"
      fi
      AUTH="Authorization: JWT $TOKEN"
      TAGS_API="https://hub.docker.com/v2/repositories/$ns_repo/tags"
      current_page="${TAGS_API}?page_size=100"
      while [ "$current_page" != null ]; do
        curl -sH "$AUTH" "$current_page" | jq ".results[].name" | tr -d '"'
        current_page=$(curl -sH "$AUTH" "$current_page" | jq ".next" | tr -d '"')
      done
    fi
  fi
}