From d1458ac8d13880f83fa2d1e08623b97c50d311d7 Mon Sep 17 00:00:00 2001 From: Serge Hallyn Date: Thu, 9 Feb 2012 10:55:33 -0600 Subject: Add ubuntu-cloud template This is a new template to create containers based on the ubuntu cloud images, rather than using debootstrap. Signed-off-by: Serge Hallyn Signed-off-by: Daniel Lezcano --- configure.ac | 1 + templates/Makefile.am | 1 + templates/lxc-ubuntu-cloud.in | 250 ++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 252 insertions(+) create mode 100644 templates/lxc-ubuntu-cloud.in diff --git a/configure.ac b/configure.ac index 8383d3f..478bfd7 100644 --- a/configure.ac +++ b/configure.ac @@ -141,6 +141,7 @@ AC_CONFIG_FILES([ templates/lxc-lenny templates/lxc-debian templates/lxc-ubuntu + templates/lxc-ubuntu-cloud templates/lxc-opensuse templates/lxc-busybox templates/lxc-fedora diff --git a/templates/Makefile.am b/templates/Makefile.am index a2f9498..d6b3892 100644 --- a/templates/Makefile.am +++ b/templates/Makefile.am @@ -4,6 +4,7 @@ templates_SCRIPTS = \ lxc-debian \ lxc-lenny \ lxc-ubuntu \ + lxc-ubuntu-cloud \ lxc-opensuse \ lxc-fedora \ lxc-altlinux \ diff --git a/templates/lxc-ubuntu-cloud.in b/templates/lxc-ubuntu-cloud.in new file mode 100644 index 0000000..24fa2f6 --- /dev/null +++ b/templates/lxc-ubuntu-cloud.in @@ -0,0 +1,250 @@ +#!/bin/bash + +# template script for generating ubuntu container for LXC based on daily cloud +# images +# +# Copyright © 2012 Serge Hallyn +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License version 2, as +# published by the Free Software Foundation. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License along +# with this program; if not, write to the Free Software Foundation, Inc., +# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. +# + +set -e + +if [ -r /etc/default/lxc ]; then + . /etc/default/lxc +fi + +copy_configuration() +{ + path=$1 + rootfs=$2 + name=$3 + arch=$4 + + if [ $arch = "i386" ]; then + arch="i686" + fi + + cat <> $path/config +lxc.utsname = $name + +lxc.tty = 4 +lxc.pts = 1024 +lxc.rootfs = $rootfs +lxc.mount = $path/fstab +lxc.arch = $arch +lxc.cap.drop = sys_module mac_admin + +lxc.cgroup.devices.deny = a +# Allow any mknod (but not using the node) +lxc.cgroup.devices.allow = c *:* m +lxc.cgroup.devices.allow = b *:* m +# /dev/null and zero +lxc.cgroup.devices.allow = c 1:3 rwm +lxc.cgroup.devices.allow = c 1:5 rwm +# consoles +lxc.cgroup.devices.allow = c 5:1 rwm +lxc.cgroup.devices.allow = c 5:0 rwm +#lxc.cgroup.devices.allow = c 4:0 rwm +#lxc.cgroup.devices.allow = c 4:1 rwm +# /dev/{,u}random +lxc.cgroup.devices.allow = c 1:9 rwm +lxc.cgroup.devices.allow = c 1:8 rwm +lxc.cgroup.devices.allow = c 136:* rwm +lxc.cgroup.devices.allow = c 5:2 rwm +# rtc +lxc.cgroup.devices.allow = c 254:0 rwm +#fuse +lxc.cgroup.devices.allow = c 10:229 rwm +#tun +lxc.cgroup.devices.allow = c 10:200 rwm +#full +lxc.cgroup.devices.allow = c 1:7 rwm +#hpet +lxc.cgroup.devices.allow = c 10:228 rwm +#kvm +lxc.cgroup.devices.allow = c 10:232 rwm +EOF + + cat < $path/fstab +proc $rootfs/proc proc nodev,noexec,nosuid 0 0 +sysfs $rootfs/sys sysfs defaults 0 0 +EOF + + return 0 +} + +usage() +{ + cat <] +release: lucid | maverick | natty | oneiric | precise +arch: amd64 or i386: defaults to host arch +EOF + return 0 +} + +options=$(getopt -o a:hp:r:n:Fi:C -l arch:,help,path:,release:,name:,flush-cache,hostid:,cloud -- "$@") +if [ $? -ne 0 ]; then + usage $(basename $0) + exit 1 +fi +eval set -- "$options" + +release=lucid +if [ -f /etc/lsb-release ]; then + . /etc/lsb-release + case "$DISTRIB_CODENAME" in + lucid|maverick|natty|oneiric|precise) + release=$DISTRIB_CODENAME + ;; + esac +fi + +arch=$(arch) + +# Code taken from debootstrap +if [ -x /usr/bin/dpkg ] && /usr/bin/dpkg --print-architecture >/dev/null 2>&1; then + arch=`/usr/bin/dpkg --print-architecture` +elif type udpkg >/dev/null 2>&1 && udpkg --print-architecture >/dev/null 2>&1; then + arch=`/usr/bin/udpkg --print-architecture` +else + arch=$(arch) + if [ "$arch" = "i686" ]; then + arch="i386" + elif [ "$arch" = "x86_64" ]; then + arch="amd64" + elif [ "$arch" = "armv7l" ]; then + arch="armel" + fi +fi + +hostarch=$arch +cloud=0 +flushcache=0 +while true +do + case "$1" in + -h|--help) usage $0 && exit 0;; + -p|--path) path=$2; shift 2;; + -n|--name) name=$2; shift 2;; + -F|--flush-cache) flushcache=1; shift 1;; + -r|--release) release=$2; shift 2;; + -a|--arch) arch=$2; shift 2;; + -i|--hostid) host_id=$2; shift 2;; + -u|--userdata) userdata=$2; shift 2;; + -C|--cloud) cloud=1; shift 1;; + --) shift 1; break ;; + *) break ;; + esac +done + +if [ "$arch" == "i686" ]; then + arch=i386 +fi + +if [ $hostarch = "i386" -a $arch = "amd64" ]; then + echo "can't create amd64 container on i386" + exit 1 +fi + +if [ $arch != "i386" -a $arch != "amd64" ]; then + echo "Only i386 and amd64 are supported by the ubuntu cloud template." + exit 1 +fi + +if [ -z "$path" ]; then + echo "'path' parameter is required" + exit 1 +fi + +if [ "$(id -u)" != "0" ]; then + echo "This script should be run as 'root'" + exit 1 +fi + +rootfs=$path/rootfs + +type ubuntu-cloudimg-query +type wget + +# determine the url, tarball, and directory names +# download if needed +cache="/var/cache/lxc/cloud-$release" + +mkdir -p $cache + +url1=`ubuntu-cloudimg-query precise daily $arch --format "%{url}\n"` +url2=`echo $url1 | sed -e 's/.tar.gz/-root\0/'` +filename=`basename $url2` + +mkdir -p /var/lock/subsys/ +( + flock -n -x 200 + + cd $cache + if [ $flushcache -eq 1 ]; then + echo "Clearing the cached images" + rm -f $filename + fi + + if [ ! -f $filename ]; then + wget $url2 + fi + + echo "Extracting rootfs" + mkdir -p $rootfs + cd $rootfs + tar -zxf $cache/$filename + + + if [ $cloud -eq 0 ]; then + echo "Configuring for running outside of a cloud environment" + echo "If you want to configure for a cloud evironment, please use '-- -C' to create the container" + + seed_d=$rootfs/var/lib/cloud/seed/nocloud-net + rhostid=$(uuidgen | cut -c -8) + host_id=${hostid:-$rhostid} + mkdir -p $seed_d + + cat > "$seed_d/meta-data" < $seed_d/user-data + if [ -z "$MIRROR" ]; then + MIRROR="http://archive.ubuntu.com/ubuntu" + fi + echo "apt-mirror: $MIRROR" >> $seed_d/user-data + fi + + chroot $rootfs /usr/sbin/usermod -U ubuntu + echo "Please login as user ubuntu with password ubuntu." + + else + + echo "Configured for running in a cloud environment." + echo "If you do not have a meta-data service, this container will likely be useless." + + fi + +) 200>/var/lock/subsys/lxc-ubucloud + +copy_configuration $path $rootfs $name $arch + +echo "Container $name created." +exit 0 -- cgit v1.2.3-65-gdbad