#!/bin/bash

# Download an xz-compressed CentOS 7 tarball. These are the base images for
# the official CentOS Docker images.
#
# https://github.com/CentOS/sig-cloud-instance-images
#
# This GitHub repository is arranged with CentOS version and architecture in
# different branches. We download the latest for a given architecture.
#
# To check what version is in a tarball (on any architecture):
#
#   $ tar xf centos-7-${arch}-docker.tar.xz --to-stdout ./etc/centos-release
#
# ch-test-scope: standard
# ch-test-builder-exclude: none

set -ex

#srcdir=$1  # unused
tarball=${2}.tar.xz
#workdir=$3  # unused

wget -nv -O "$tarball" "https://github.com/CentOS/sig-cloud-instance-images/blob/CentOS-7-$(uname -m)/docker/centos-7-$(uname -m)-docker.tar.xz?raw=true"
