Script para el transporte de imágenes

transport.sh

#!/bin/bash

# Author: Alejandro M. BERNARDIS
# Created: 2019/08/30

set -e

# colors
BLACK=$(printf '\033[30m')
RED=$(printf '\033[31m')
GREEN=$(printf '\033[32m')
YELLOW=$(printf '\033[33m')
BLUE=$(printf '\033[34m')
MAGENTA=$(printf '\033[35m')
CYAN=$(printf '\033[36m')
GRAY=$(printf '\033[37m')

# styles
NORMAL=$(printf '\033[0m')
BOLD=$(printf '\033[1m')
RESET=$(printf '\033[m')

# welcome
echo "${BOLD}${CYAN} ## TRANSPORT MANAGER ## ${RESET}"

# checkpoint...
[[ "$(id -u)" == '0' ]] \
    || (echo " ! ${YELLOW}Run with ${BOLD}\"root\"${RESET}" && exit 1)

# variables
reg_user=${1:-""}
reg_dev=""
reg_pro=""
tag_from="rc"
tag_to="latest"

# session
if [[ ! -z "${reg_user}" ]]; then

	# password
	echo -n " > ${BOLD}${BLUE}Password${RESET}: "
	read -s reg_pass
	echo '***'
	[ ! -z "${reg_pass}" ] || (echo " - ${RED}Password is empty.${RESET}" && exit 1)

	# registry login
	echo "docker login -u ${reg_user} -p ${reg_pass} ${reg_pro}" \
	 | bash
	[ $? -eq 0 ] || (echo " - ${RED}Login failed.${RESET}" && exit 2)
	echo " - ${GREEN}Login succeeded into ${BOLD}\"${reg_pro}\".${RESET}"

fi

# tagging
docker images "${reg_dev}/dash/*:${tag_from}" --format "{{.Repository}}" \
 | grep -Po 'dash/.*' \
 | awk -v origin="${reg_dev}/%s:${tag_from}" -v target="${reg_pro}/%s:${tag_to}" \
	'{printf("docker tag " origin " " target "\n", $1, $1);}' \
 | bash
[ $? -eq 0 ] || (echo " - ${RED}Tagging failed.${RESET}" && exit 3)

image_filter="${reg_pro}/dash/*:${tag_to}"
total=$(docker images "${image_filter}" | grep -P '/dash/' | wc -l)

echo " - ${GREEN}Has been retagged \"${total}\" image(s).${RESET}"

# transport
docker images "${image_filter}" --format "docker push {{.Repository}}:{{.Tag}}" \
 | bash
[ $? -eq 0 ] || (echo " - ${RED}Transport failed.${RESET}" && exit 4)

echo " - ${GREEN}Has been transported \"${total}\" image(s).${RESET}"