157 lines
3.3 KiB
Bash
Executable file
157 lines
3.3 KiB
Bash
Executable file
#!/bin/bash
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# This is the code extracted from /usr/share/lxc/templates/lxc-debian
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# that comes with Ubuntu 13.04 which is responsible for downloading the
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# rootfs files / packages
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set -e
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suggest_flush()
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{
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echo <<EOF
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Container upgrade failed. The container cache may be out of date,
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in which case flushing the case (see -F in the hep output) may help.
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EOF
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}
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cleanup()
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{
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rm -rf $cache/partial
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rm -rf $cache/rootfs
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}
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write_sourceslist()
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{
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rootfs=$1
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arch=$2
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release=$3
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MIRROR=${MIRROR:-http://ftp.debian.org/debian}
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SECURITY_MIRROR=${SECURITY_MIRROR:-http://security.debian.org/debian-security}
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if [ 'sid' == "${release}" -o 'unstable' == "${release}" ]; then
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cat <<EOF > ${rootfs}/etc/apt/sources.list
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# ${release}
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#------------------------------------------------------------------------------
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deb ${MIRROR} ${release} main contrib non-free
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EOF
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else
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cat <<EOF > ${rootfs}/etc/apt/sources.list
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# ${release}
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#------------------------------------------------------------------------------
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deb ${MIRROR} ${release} main contrib non-free
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# ${release} security
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#------------------------------------------------------------------------------
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deb ${SECURITY_MIRROR} ${release}/updates main contrib non-free
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# ${release} updates
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#------------------------------------------------------------------------------
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deb ${MIRROR} ${release}-updates main contrib non-free
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# ${release} proposed updates
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#------------------------------------------------------------------------------
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deb ${MIRROR} ${release}-proposed-updates main contrib non-free
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EOF
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fi
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}
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download_debian()
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{
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cache=$1
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arch=$2
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release=$3
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packages=\
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sudo,\
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ifupdown,\
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locales,\
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libui-dialog-perl,\
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dialog,\
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isc-dhcp-client,\
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netbase,\
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net-tools,\
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iproute,\
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openssh-server,\
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vim,\
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jed,\
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jed-extra,\
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ssh,\
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curl,\
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wget,\
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bash-completion,\
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manpages,\
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man-db,\
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psmisc,\
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bind9-host,\
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telnet,\
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mtr-tiny,\
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iputils-ping,\
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ca-certificates
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if [ ! -z "${ADDITIONAL_PACKAGES}" ]; then
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packages=${ADDITIONAL_PACKAGES},${packages}
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fi
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echo "installing packages: ${packages}"
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trap cleanup EXIT SIGHUP SIGINT SIGTERM
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# check the mini debian was not already downloaded
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partial=${cache}/partial
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mkdir -p ${partial}
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if [ $? -ne 0 ]; then
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echo "Failed to create '${partial}' directory"
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return 1
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fi
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# download a mini debian into a cache
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echo "Downloading debian ${release} minimal ..."
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debootstrap \
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--variant=minbase \
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--verbose \
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--components=main,contrib,non-free \
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--arch=${arch} \
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--include=${packages} ${release} ${partial} ${MIRROR}
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if [ $? -ne 0 ]; then
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echo 'Failed to download the rootfs, aborting.'
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return 1
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fi
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echo 'Installing updates'
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write_sourceslist ${partial} ${arch} ${release}
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chroot ${partial} apt-get update
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if [ $? -ne 0 ]; then
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echo 'Failed to update the apt cache'
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return 1
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fi
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lxc-unshare -s MOUNT -- chroot ${partial} \
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apt-get dist-upgrade -y || { suggest_flush; false; }
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chroot ${partial} apt-get clean
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mv ${partial} ${cache}/rootfs
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trap EXIT
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trap SIGINT
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trap SIGTERM
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trap SIGHUP
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echo 'Download complete'
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return 0
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}
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declare cache=`readlink -f .` \
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arch=$1 \
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release=$2
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if [ -d ${cache}/rootfs ]; then
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echo <<EOF
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The rootfs cache has been built already, please remove it if you want to update
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EOF
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exit 1
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fi
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download_debian ${cache} ${arch} ${release}
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