Docker: Get total pulls from dockerhub

get-total-pulls.sh

#!/usr/bin/env bash
# get-total-pulls.sh
# ------------------------------------------------------------------------------
#
# DESCRIPTION:
#   Gets the total pulls for a dockerhub repo.
#   This script iterates the image-list file and outputs a report.
#
# INPUT FILE:
#   The input file is a list of docker images - one per line.
#     Example:
#       debian:latest
#       ubuntu:latest
#       centos:latest
#       fedora:latest
#       archlinux:latest
#       opensuse/leap:latest
#       rockylinux:latest
#       almalinux:latest
# ------------------------------------------------------------------------------

function get-total-pulls() {
    curl -s https://hub.docker.com/v2/repositories/$image | \
    jq -r '(paths(scalars) | select(.[-1] == "pull_count")) as $p | [ ( [ $p[] | tostring ] | join(".") ) , ( getpath($p) | tojson ) ] | join(": ")' | \
    awk '{s+=$2} END {print s}' | \
    xargs printf "%'d"
}

width=30
echo "TOTAL PULLS:"
echo "------------"
for image in $(cat image-list | awk -F: '{print $1}'); do
    pulls=$(get-total-pulls)
    printf "%s" "$image"
    printf "%*s" "$((${COLUMNS}-$((${COLUMNS}-$(wc -c<<<${image}${pulls})+${width}))))" # | tr ' ' -
    printf "%s\n" "${pulls}"
done