#!/bin/bash

# Copyright 2016 The Kubernetes Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# Usage: copy-e2e-image.sh <image-name> <from-project-name> <to-project-name>

# See *.properties for list of images to copy,
# typically from kubernetes-node-e2e-images

set -e

print_usage() {
    echo "This script helps copy a GCE image from a source to a target project"
    echo -e "\nUsage:\n$0 <from-image-name> <from-project-name> <to-project-name> <to-image-name>\n"
}

if [  $# -ne 4 ]; then
    print_usage
    exit 1
fi

FROM_IMAGE=$1
FROM_PROJECT=$2
TO_PROJECT=$3
TO_IMAGE=$4

echo "Copying image $FROM_IMAGE from project $FROM_PROJECT to project $TO_PROJECT as image $TO_IMAGE..."
gcloud compute --project $TO_PROJECT disks create $TO_IMAGE --image=https://www.googleapis.com/compute/v1/projects/$FROM_PROJECT/global/images/$FROM_IMAGE
gcloud compute --project $TO_PROJECT images create $TO_IMAGE \
  --source-disk=$TO_IMAGE \
  --description="Cloned from projects/$2/global/images/$1 by $USER on $(date)"
gcloud -q compute --project $TO_PROJECT disks delete $TO_IMAGE