#!/usr/bin/env bash

set -e

if [ "$#" -ne 1 ]; then
	echo "Usage: $0 VERSION" >&2
	exit 1
fi

VERSION=${1}
ARCH=$(go env GOARCH)
DOCKERFILE="Dockerfile-release"
: ${TAG:="quay.io/coreos/etcd"}

if [ -z ${BINARYDIR} ]; then
	RELEASE="etcd-${1}"-`go env GOOS`-`go env GOARCH`
	BINARYDIR="${RELEASE}"
	TARFILE="${RELEASE}.tar.gz"
	TARURL="https://github.com/coreos/etcd/releases/download/${1}/${TARFILE}"
	if ! curl -f -L -o ${TARFILE} ${TARURL} ; then
		echo "Failed to download ${TARURL}."
		exit 1
	fi
	tar -zvxf ${TARFILE}
fi

if [ ${ARCH} != "amd64" ]; then
	DOCKERFILE+=".${ARCH}"
	VERSION+="-${ARCH}"
fi

BINARYDIR=${BINARYDIR:-.}
BUILDDIR=${BUILDDIR:-.}

IMAGEDIR=${BUILDDIR}/image-docker

mkdir -p ${IMAGEDIR}/var/etcd
mkdir -p ${IMAGEDIR}/var/lib/etcd
cp ${BINARYDIR}/etcd ${BINARYDIR}/etcdctl ${IMAGEDIR}

cat ./${DOCKERFILE} > ${IMAGEDIR}/Dockerfile

docker build -t ${TAG}:${VERSION} ${IMAGEDIR}