103 lines
2.8 KiB
Text
103 lines
2.8 KiB
Text
|
#!/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 The container cache may be out of date,"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 $cache/partial-$arch
|
||
|
|
rm -rf $cache/rootfs-$arch
|
||
|
|
}
|
||
|
|
|
||
|
|
write_sourceslist()
|
||
|
|
{
|
||
|
|
# $1 => path to the rootfs
|
||
|
|
# $2 => architecture we want to add
|
||
|
|
|
||
|
|
MIRROR=${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
|
||
|
|
echo "installing packages: $packages"
|
||
|
|
|
||
|
|
trap cleanup EXIT SIGHUP SIGINT SIGTERM
|
||
|
|
# check the mini ubuntu was not already downloaded
|
||
|
|
mkdir -p "$cache/partial-$arch"
|
||
|
|
if [ $? -ne 0 ]; then
|
||
|
|
echo "Failed to create '$cache/partial-$arch' 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 $cache/partial-$arch $MIRROR
|
||
|
|
else
|
||
|
|
debootstrap --verbose --components=main,universe --arch=$arch --include=$packages $release $cache/partial-$arch $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"
|
||
|
|
> $cache/partial-$arch/etc/apt/sources.list
|
||
|
|
write_sourceslist $cache/partial-$arch/ $arch
|
||
|
|
|
||
|
|
chroot "$1/partial-${arch}" apt-get update
|
||
|
|
if [ $? -ne 0 ]; then
|
||
|
|
echo "Failed to update the apt cache"
|
||
|
|
return 1
|
||
|
|
fi
|
||
|
|
cat > "$1/partial-${arch}"/usr/sbin/policy-rc.d << EOF
|
||
|
|
#!/bin/sh
|
||
|
|
exit 101
|
||
|
|
EOF
|
||
|
|
chmod +x "$1/partial-${arch}"/usr/sbin/policy-rc.d
|
||
|
|
|
||
|
|
lxc-unshare -s MOUNT -- chroot "$1/partial-${arch}" apt-get dist-upgrade -y || { suggest_flush; false; }
|
||
|
|
rm -f "$1/partial-${arch}"/usr/sbin/policy-rc.d
|
||
|
|
|
||
|
|
chroot "$1/partial-${arch}" apt-get clean
|
||
|
|
|
||
|
|
mv "$1/partial-$arch" "$1/rootfs-$arch"
|
||
|
|
trap EXIT
|
||
|
|
trap SIGINT
|
||
|
|
trap SIGTERM
|
||
|
|
trap SIGHUP
|
||
|
|
echo "Download complete"
|
||
|
|
return 0
|
||
|
|
}
|
||
|
|
|
||
|
|
declare cache=`readlink -f .` \
|
||
|
|
arch=amd64 \
|
||
|
|
release=quantal
|
||
|
|
|
||
|
|
if [ -d "${cache}/rootfs-${arch}" ]; then
|
||
|
|
echo 'The cache has been downloaded already, please remove it if you want to update'
|
||
|
|
exit 1
|
||
|
|
fi
|
||
|
|
|
||
|
|
download_ubuntu $cache $arch $release
|