vagrant-lxc-ng/boxes/ubuntu/download

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2013-04-22 00:31:22 +00:00
#!/bin/bash
# This is the code extracted from /usr/share/lxc/templates/lxc-ubuntu
# that comes with Ubuntu 12.10 which is responsible for downloading the
# rootfs files / packages
set -e
suggest_flush()
{
echo "Container upgrade failed. The container cache may be out of date,"
echo "in which case flushing the case (see -F in the hep output) may help."
}
cleanup()
{
rm -rf $cache/partial
rm -rf $cache/rootfs
}
write_sourceslist()
{
# $1 => path to the rootfs
MIRROR=${MIRROR:-http://archive.ubuntu.com/ubuntu}
SECURITY_MIRROR=${SECURITY_MIRROR:-http://security.ubuntu.com/ubuntu}
cat >> "$1/etc/apt/sources.list" << EOF
deb $MIRROR ${release} main restricted universe multiverse
deb $MIRROR ${release}-updates main restricted universe multiverse
deb $SECURITY_MIRROR ${release}-security main restricted universe multiverse
EOF
}
download_ubuntu()
{
packages=vim,ssh,curl,wget,bash-completion,manpages,man-db,psmisc
echo "installing packages: $packages"
trap cleanup EXIT SIGHUP SIGINT SIGTERM
# check the mini ubuntu was not already downloaded
mkdir -p "$cache/partial"
if [ $? -ne 0 ]; then
echo "Failed to create '$cache/partial' directory"
return 1
fi
# download a mini ubuntu into a cache
echo "Downloading ubuntu $release minimal ..."
if [ -n "$(which qemu-debootstrap)" ]; then
qemu-debootstrap --verbose --components=main,universe --arch=$arch --include=$packages $release $cache/partial $MIRROR
else
debootstrap --verbose --components=main,universe --arch=$arch --include=$packages $release $cache/partial $MIRROR
fi
if [ $? -ne 0 ]; then
echo "Failed to download the rootfs, aborting."
return 1
fi
# Serge isn't sure whether we should avoid doing this when
# $release == `distro-info -d`
echo "Installing updates"
> $cache/partial/etc/apt/sources.list
write_sourceslist $cache/partial/ $arch
chroot "$1/partial" apt-get update
if [ $? -ne 0 ]; then
echo "Failed to update the apt cache"
return 1
fi
cat > "$1/partial"/usr/sbin/policy-rc.d << EOF
#!/bin/sh
exit 101
EOF
chmod +x "$1/partial"/usr/sbin/policy-rc.d
lxc-unshare -s MOUNT -- chroot "$1/partial" apt-get dist-upgrade -y || { suggest_flush; false; }
rm -f "$1/partial"/usr/sbin/policy-rc.d
chroot "$1/partial" apt-get clean
mv "$1/partial" "$1/rootfs"
trap EXIT
trap SIGINT
trap SIGTERM
trap SIGHUP
echo "Download complete"
return 0
}
declare cache=`readlink -f .` \
arch=$1 \
release=$2
if [ -d "${cache}/rootfs" ]; then
echo 'The rootfs cache has been built already, please remove it if you want to update'
exit 1
fi
download_ubuntu $cache $arch $release