Tar Dump All Docker Images From List

dump-docker-images-from-list-file.sh

#!/bin/bash

# cat imagelist.txt |bash THISSCRIPT.sh 

# imagelist.txt:
# nginx:latest
# user/image:tag

color_echo() {
  local color='\033[1;33m'
  local message=$1
  local BOLD='\033[31m'
  local RESET='\033[0m'

  echo -e "${BOLD}${color}${message}${RESET}"
}

# DUMP_DIR= # dump dir def: $PWD

if [ -z "$DUMP_DIR" ] ;
then
    DUMP_DIR=$PWD
fi

while IFS= read -r IMAGE_TAGGED; do
    echo >&2 "image tagged: ${IMAGE_TAGGED}"
    IMAGE_TAGGED_FILENAME_SAFE=`echo "$IMAGE_TAGGED" |tr -c "a-z A-Z0-9_.\n-" "%"`

    color_echo "== Saving $IMAGE_TAGGED =="

    docker save -o $DUMP_DIR/$IMAGE_TAGGED_FILENAME_SAFE.tar $IMAGE_TAGGED

done