OpenStack CoreOS image upload

update-image.sh

#!/usr/bin/env bash

REPOSITORY_URL="https://stable.release.core-os.net/amd64-usr/current";
IMAGE_FILE="coreos_production_openstack_image.img";
IMAGE_BZIP_FILE="${IMAGE_FILE}.bz2"
VERSION_FILE="version.txt";

TEMP_DIR=`mktemp -d` && cd ${TEMP_DIR}

# checking what is the latest CoreOS release version
echo Checking for the latest CoreOS release version...
wget ${REPOSITORY_URL}/${VERSION_FILE} -q
COREOS_VERSION=$(awk -F "=" '/COREOS_VERSION_ID/ {print $2}' ${VERSION_FILE})
COREOS_NAME="CoreOS ${COREOS_VERSION}"

# check if that image is currently available in OpenStack
IMAGE_TEST=`openstack image list | grep "${COREOS_NAME}" | wc -l`

if (( IMAGE_TEST > 0 )); then
  echo The latest ${COREOS_NAME} image has already been uploaded to OpenStack
else
  echo Downloading ${COREOS_NAME} image...
  wget ${REPOSITORY_URL}/${IMAGE_BZIP_FILE} -q --show-progress

  echo Unpacking ${COREOS_NAME} image...
  bzip2 -d ${IMAGE_BZIP_FILE}

  echo Uploading ${COREOS_NAME} image to OpenStack...
  openstack image create "${COREOS_NAME}" \
    --container-format bare \
    --disk-format qcow2 \
    --file ${IMAGE_FILE}
fi