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#!/bin/bash
set -eo pipefail
ARCH="$(uname -m)"
IMAGE_TYPE='default'
RELEASE='9'
BASE_DIR='./result'
PROGRAM_DIR="$(dirname -- "$0")"
VERSION='0.0.1'
show_usage() {
echo -e 'Generates an MSVSphere container image RootFS and Dockerfile\n'
echo -e 'Usage: build-image.sh [OPTION]...\n'
echo ' -h, --help show this message and exit'
echo " -r, --release RELEASE target MSVSphere release, default is ${RELEASE}"
echo ' -t, --type TYPE image type, supported values are: default.'
echo " Default value is '${IMAGE_TYPE}'"
echo " -o, --output DIR output directory path, default is ${BASE_DIR}"
echo ' -v, --version show program version and exit'
}
log_error() {
echo "ERROR : ${1}" >&2
}
gen_dockerfile() {
local -r image_name="${1}"
local -r build_date="$(date --rfc-3339=seconds --utc)"
echo 'FROM scratch'
echo "ADD ${image_name} /"
echo ''
# see https://github.com/opencontainers/image-spec/blob/master/annotations.md for details
echo "LABEL org.opencontainers.image.title=\"MSVSphere ${RELEASE} ${ARCH} ${IMAGE_TYPE} image\""
echo 'LABEL org.opencontainers.image.vendor="MSVSphere"'
echo 'LABEL org.opencontainers.image.licenses="MIT"'
echo "LABEL org.opencontainers.image.created=\"${build_date}\""
echo 'LABEL org.opencontainers.image.authors="Eugene Zamriy <ezamriy@msvsphere.ru>"'
echo 'LABEL org.opencontainers.image.source="https://git.inferitos.ru/msvsphere/docker-images"'
echo ''
#
case "${IMAGE_TYPE}" in
default)
echo 'CMD ["/bin/bash"]'
;;
*)
log_error "unsupported image type ${IMAGE_TYPE}"
exit 1
;;
esac
}
collect_logs() {
local -r logs_dir="${1}/logs"
mkdir "${logs_dir}"
if [[ -d anaconda ]]; then
mv anaconda "${logs_dir}/"
fi
mv ./*.log "${logs_dir}/"
}
main() {
local -r image_name="msvsphere-${RELEASE}-${IMAGE_TYPE}.tar.xz"
local -r ks_file="${PROGRAM_DIR}/kickstarts/msvsphere-${RELEASE}-${IMAGE_TYPE}.ks"
local -r project="MSVSphere ${RELEASE} ${IMAGE_TYPE} Docker image"
local -r result_dir="${BASE_DIR%%/}/${RELEASE}-${IMAGE_TYPE}"
local -r docker_file="${result_dir}/Dockerfile"
if [[ -d "${result_dir}" ]]; then
log_error "directory ${result_dir} is already exist, please remove it first"
exit 1
elif [[ ! -f "${ks_file}" ]]; then
log_error "kickstart file ${ks_file} is not found"
exit 1
fi
# generate RootFS tarball
livemedia-creator --no-virt --make-tar \
--project "${project}" \
--releasever "${RELEASE}" \
--image-name "${image_name}" \
--ks "${ks_file}" \
--resultdir "${result_dir}" \
--anaconda-arg "--nosave all"
# generate Dockerfile and save build logs
gen_dockerfile "${image_name}" >"${docker_file}"
collect_logs "${result_dir}"
}
if [[ "${BASH_SOURCE[0]}" == "${0}" ]]; then
ARGS=()
while [[ $# -gt 0 ]]; do
case ${1} in
-h | --help)
show_usage
exit 0
;;
-t | --type)
case "${2}" in
default)
IMAGE_TYPE="${2}"
;;
*)
log_error "unsupported image type '${2}'"
exit 2
;;
esac
shift
shift
;;
-o | --output)
if [[ -z "${2}" ]]; then
log_error 'output directory path is required'
exit 2
fi
BASE_DIR="${2}"
shift
shift
;;
-v | --version)
echo "${VERSION}"
exit 0
;;
-*)
log_error "unknown option ${1}"
exit 2
;;
*)
ARGS+=("${1}")
shift
;;
esac
done
main
fi