Build ubuntu cloud box with the required metadata and remove dummy box
This commit is contained in:
Fabio Rehm
parent
79efbe9cd0
commit
e1f62e4e56
7 changed files with 430 additions and 12 deletions
3
.gitignore
vendored
3
.gitignore
vendored
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@ -22,4 +22,5 @@ doc/
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.vagrant
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.vagrant
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/cache
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/cache
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/dummy-ubuntu-cloudimg.box
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/boxes/**/*.tar.gz
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/boxes/output/
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406
boxes/ubuntu-cloud/lxc-ubuntu-cloud
Executable file
406
boxes/ubuntu-cloud/lxc-ubuntu-cloud
Executable file
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@ -0,0 +1,406 @@
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#!/bin/bash
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# template script for generating ubuntu container for LXC based on released cloud
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# images
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#
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# Copyright © 2012 Serge Hallyn <serge.hallyn@canonical.com>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License version 2, as
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# published by the Free Software Foundation.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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#
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set -e
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if [ -r /etc/default/lxc ]; then
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. /etc/default/lxc
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fi
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copy_configuration()
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{
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path=$1
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rootfs=$2
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name=$3
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arch=$4
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release=$5
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if [ $arch = "i386" ]; then
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arch="i686"
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fi
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# if there is exactly one veth network entry, make sure it has an
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# associated hwaddr.
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nics=`grep -e '^lxc\.network\.type[ \t]*=[ \t]*veth' $path/config | wc -l`
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if [ $nics -eq 1 ]; then
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grep -q "^lxc.network.hwaddr" $path/config || cat <<EOF >> $path/config
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lxc.network.hwaddr = 00:16:3e:$(openssl rand -hex 3| sed 's/\(..\)/\1:/g; s/.$//')
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EOF
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fi
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grep -q "^lxc.rootfs" $path/config 2>/dev/null || echo "lxc.rootfs = $rootfs" >> $path/config
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cat <<EOF >> $path/config
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lxc.utsname = $name
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lxc.tty = 4
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lxc.pts = 1024
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lxc.mount = $path/fstab
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lxc.arch = $arch
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lxc.cap.drop = sys_module mac_admin
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lxc.pivotdir = lxc_putold
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# uncomment the next line to run the container unconfined:
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#lxc.aa_profile = unconfined
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lxc.cgroup.devices.deny = a
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# Allow any mknod (but not using the node)
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lxc.cgroup.devices.allow = c *:* m
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lxc.cgroup.devices.allow = b *:* m
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# /dev/null and zero
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lxc.cgroup.devices.allow = c 1:3 rwm
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lxc.cgroup.devices.allow = c 1:5 rwm
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# consoles
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lxc.cgroup.devices.allow = c 5:1 rwm
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lxc.cgroup.devices.allow = c 5:0 rwm
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#lxc.cgroup.devices.allow = c 4:0 rwm
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#lxc.cgroup.devices.allow = c 4:1 rwm
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# /dev/{,u}random
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lxc.cgroup.devices.allow = c 1:9 rwm
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lxc.cgroup.devices.allow = c 1:8 rwm
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lxc.cgroup.devices.allow = c 136:* rwm
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lxc.cgroup.devices.allow = c 5:2 rwm
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# rtc
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lxc.cgroup.devices.allow = c 254:0 rwm
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#fuse
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lxc.cgroup.devices.allow = c 10:229 rwm
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#tun
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lxc.cgroup.devices.allow = c 10:200 rwm
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#full
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lxc.cgroup.devices.allow = c 1:7 rwm
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#hpet
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lxc.cgroup.devices.allow = c 10:228 rwm
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#kvm
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lxc.cgroup.devices.allow = c 10:232 rwm
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EOF
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cat <<EOF > $path/fstab
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proc proc proc nodev,noexec,nosuid 0 0
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sysfs sys sysfs defaults 0 0
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EOF
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# rmdir /dev/shm for containers that have /run/shm
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# I'm afraid of doing rm -rf $rootfs/dev/shm, in case it did
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# get bind mounted to the host's /run/shm. So try to rmdir
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# it, and in case that fails move it out of the way.
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if [ ! -L $rootfs/dev/shm ] && [ -d $rootfs/run/shm ] && [ -e $rootfs/dev/shm ]; then
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mv $rootfs/dev/shm $rootfs/dev/shm.bak
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ln -s /run/shm $rootfs/dev/shm
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fi
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return 0
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}
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usage()
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{
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cat <<EOF
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LXC Container configuration for Ubuntu Cloud images.
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Generic Options
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[ -r | --release <release> ]: Release name of container, defaults to host
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[ -a | --arch ]: Arhcitecture of container, defaults to host arcitecture
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[ -C | --cloud ]: Configure container for use with meta-data service, defaults to no
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[ -T | --tarball ]: Location of tarball
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[ -d | --debug ]: Run with 'set -x' to debug errors
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[ -s | --stream]: Use specified stream rather than 'released'
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Options, mutually exclusive of "-C" and "--cloud":
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[ -i | --hostid ]: HostID for cloud-init, defaults to random string
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[ -u | --userdata ]: Cloud-init user-data file to configure container on start
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[ -S | --auth-key ]: SSH Public key file to inject into container
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[ -L | --nolocales ]: Do not copy host's locales into container
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EOF
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return 0
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}
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options=$(getopt -o a:hp:r:n:Fi:CLS:T:ds:u: -l arch:,help,path:,release:,name:,flush-cache,hostid:,auth-key:,cloud,no_locales,tarball:,debug,stream:,userdata: -- "$@")
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if [ $? -ne 0 ]; then
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usage $(basename $0)
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exit 1
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fi
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eval set -- "$options"
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release=lucid
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if [ -f /etc/lsb-release ]; then
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. /etc/lsb-release
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case "$DISTRIB_CODENAME" in
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lucid|natty|oneiric|precise|quantal)
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release=$DISTRIB_CODENAME
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;;
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esac
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fi
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arch=$(arch)
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# Code taken from debootstrap
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if [ -x /usr/bin/dpkg ] && /usr/bin/dpkg --print-architecture >/dev/null 2>&1; then
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arch=`/usr/bin/dpkg --print-architecture`
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elif type udpkg >/dev/null 2>&1 && udpkg --print-architecture >/dev/null 2>&1; then
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arch=`/usr/bin/udpkg --print-architecture`
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else
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arch=$(arch)
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if [ "$arch" = "i686" ]; then
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arch="i386"
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elif [ "$arch" = "x86_64" ]; then
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arch="amd64"
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elif [ "$arch" = "armv7l" ]; then
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# note: arm images don't exist before oneiric; are called armhf in
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# precise and later; and are not supported by the query, so we don't actually
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# support them yet (see check later on). When Query2 is available,
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# we'll use that to enable arm images.
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arch="armel"
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fi
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fi
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debug=0
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hostarch=$arch
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cloud=0
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locales=1
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flushcache=0
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stream="released"
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while true
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do
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case "$1" in
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-h|--help) usage $0 && exit 0;;
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-p|--path) path=$2; shift 2;;
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-n|--name) name=$2; shift 2;;
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-F|--flush-cache) flushcache=1; shift 1;;
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-r|--release) release=$2; shift 2;;
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-a|--arch) arch=$2; shift 2;;
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-i|--hostid) host_id=$2; shift 2;;
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-u|--userdata) userdata=$2; shift 2;;
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-C|--cloud) cloud=1; shift 1;;
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-S|--auth-key) auth_key=$2; shift 2;;
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-L|--no_locales) locales=0; shift 1;;
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-T|--tarball) tarball=$2; shift 2;;
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-d|--debug) debug=1; shift 1;;
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-s|--stream) stream=$2; shift 2;;
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--) shift 1; break ;;
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*) break ;;
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esac
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done
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if [ $debug -eq 1 ]; then
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set -x
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fi
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if [ "$arch" == "i686" ]; then
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arch=i386
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fi
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if [ $hostarch = "i386" -a $arch = "amd64" ]; then
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echo "can't create amd64 container on i386"
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exit 1
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fi
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if [ $arch != "i386" -a $arch != "amd64" ]; then
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echo "Only i386 and amd64 are supported by the ubuntu cloud template."
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exit 1
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fi
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if [ "$stream" != "daily" -a "$stream" != "released" ]; then
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echo "Only 'daily' and 'released' streams are supported"
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exit 1
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fi
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if [ -n "$userdata" ]; then
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if [ ! -f "$userdata" ]; then
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echo "Userdata ($userdata) does not exist"
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exit 1
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else
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userdata=`readlink -f $userdata`
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fi
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fi
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if [ -n "$auth_key" ]; then
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if [ ! -f "$auth_key" ]; then
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echo "--auth-key=${auth_key} must reference a file"
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exit 1
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fi
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auth_key=$(readlink -f "${auth_key}") ||
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{ echo "failed to get full path for auth_key"; exit 1; }
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fi
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if [ -z "$path" ]; then
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echo "'path' parameter is required"
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exit 1
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fi
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if [ "$(id -u)" != "0" ]; then
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echo "This script should be run as 'root'"
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exit 1
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fi
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# detect rootfs
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config="$path/config"
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if grep -q '^lxc.rootfs' $config 2>/dev/null ; then
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rootfs=`grep 'lxc.rootfs =' $config | awk -F= '{ print $2 }'`
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else
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rootfs=$path/rootfs
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fi
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type ubuntu-cloudimg-query
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type wget
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# determine the url, tarball, and directory names
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# download if needed
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cache="/var/cache/lxc/cloud-$release"
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mkdir -p $cache
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if [ -n "$tarball" ]; then
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url2="$tarball"
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else
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url1=`ubuntu-cloudimg-query $release $stream $arch --format "%{url}\n"`
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url2=`echo $url1 | sed -e 's/.tar.gz/-root\0/'`
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fi
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filename=`basename $url2`
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wgetcleanup()
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{
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rm -f $filename
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}
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buildcleanup()
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{
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cd $rootfs
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umount -l $cache/$xdir || true
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rm -rf $cache
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}
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# if the release doesn't have a *-rootfs.tar.gz, then create one from the
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# cloudimg.tar.gz by extracting the .img, mounting it loopback, and creating
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# a tarball from the mounted image.
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build_root_tgz()
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{
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url=$1
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filename=$2
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xdir=`mktemp -d -p .`
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tarname=`basename $url`
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imgname="$release-*-cloudimg-$arch.img"
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trap buildcleanup EXIT SIGHUP SIGINT SIGTERM
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if [ $flushcache -eq 1 -o ! -f $cache/$tarname ]; then
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rm -f $tarname
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echo "Downloading cloud image from $url"
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wget $url || { echo "Couldn't find cloud image $url."; exit 1; }
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fi
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echo "Creating new cached cloud image rootfs"
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tar --wildcards -zxf $tarname $imgname
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mount -o loop $imgname $xdir
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(cd $xdir; tar zcf ../$filename .)
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umount $xdir
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rm -f $tarname $imgname
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rmdir $xdir
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echo "New cloud image cache created"
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trap EXIT
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trap SIGHUP
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trap SIGINT
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trap SIGTERM
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}
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mkdir -p /var/lock/subsys/
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(
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flock -x 200
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cd $cache
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if [ $flushcache -eq 1 ]; then
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echo "Clearing the cached images"
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rm -f $filename
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fi
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trap wgetcleanup EXIT SIGHUP SIGINT SIGTERM
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if [ ! -f $filename ]; then
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wget $url2 || build_root_tgz $url1 $filename
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fi
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trap EXIT
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trap SIGHUP
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trap SIGINT
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trap SIGTERM
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echo "Extracting container rootfs"
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mkdir -p $rootfs
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cd $rootfs
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tar --numeric-owner -zxf $cache/$filename
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if [ $cloud -eq 0 ]; then
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echo "Configuring for running outside of a cloud environment"
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echo "If you want to configure for a cloud evironment, please use '-- -C' to create the container"
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seed_d=$rootfs/var/lib/cloud/seed/nocloud-net
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rhostid=$(uuidgen | cut -c -8)
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host_id=${hostid:-$rhostid}
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mkdir -p $seed_d
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cat > "$seed_d/meta-data" <<EOF
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instance-id: lxc-$host_id
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EOF
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if [ -n "$auth_key" ]; then
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{
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echo "public-keys:" &&
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sed -e '/^$/d' -e 's,^,- ,' "$auth_key" "$auth_key"
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} >> "$seed_d/meta-data"
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[ $? -eq 0 ] ||
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{ echo "failed to write public keys to metadata"; exit 1; }
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fi
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rm $rootfs/etc/hostname
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if [ $locales -eq 1 ]; then
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cp /usr/lib/locale/locale-archive $rootfs/usr/lib/locale/locale-archive
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||||||
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fi
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if [ -f "$userdata" ]; then
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echo "Using custom user-data"
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cp $userdata $seed_d/user-data
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else
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|
|
||||||
|
if [ -z "$MIRROR" ]; then
|
||||||
|
MIRROR="http://archive.ubuntu.com/ubuntu"
|
||||||
|
fi
|
||||||
|
|
||||||
|
cat > "$seed_d/user-data" <<EOF
|
||||||
|
#cloud-config
|
||||||
|
output: {all: '| tee -a /var/log/cloud-init-output.log'}
|
||||||
|
apt_mirror: $MIRROR
|
||||||
|
manage_etc_hosts: localhost
|
||||||
|
locale: $(/usr/bin/locale | awk -F= '/LANG=/ {print$NF}')
|
||||||
|
password: ubuntu
|
||||||
|
chpasswd: { expire: False }
|
||||||
|
EOF
|
||||||
|
fi
|
||||||
|
|
||||||
|
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 $release
|
||||||
|
|
||||||
|
echo "Container $name created."
|
||||||
|
exit 0
|
||||||
|
|
||||||
|
# vi: ts=4 expandtab
|
||||||
7
boxes/ubuntu-cloud/metadata.json
Normal file
7
boxes/ubuntu-cloud/metadata.json
Normal file
|
|
@ -0,0 +1,7 @@
|
||||||
|
{
|
||||||
|
"provider": "lxc",
|
||||||
|
"vagrant-lxc-version": "0.0.1",
|
||||||
|
"template-name": "lxc-ubuntu-cloud",
|
||||||
|
"after-create-script": "set-vagrant-user.sh",
|
||||||
|
"tar-cache": "ubuntu-12.10-server-cloudimg-amd64-root.tar.gz"
|
||||||
|
}
|
||||||
|
|
@ -1 +0,0 @@
|
||||||
{"provider":"lxc"}
|
|
||||||
|
|
@ -7,10 +7,9 @@ require 'json'
|
||||||
|
|
||||||
IMAGE_ROOT = 'https://cloud-images.ubuntu.com/releases/quantal/release-20130206'
|
IMAGE_ROOT = 'https://cloud-images.ubuntu.com/releases/quantal/release-20130206'
|
||||||
IMAGE_NAME = 'ubuntu-12.10-server-cloudimg-amd64-root.tar.gz'
|
IMAGE_NAME = 'ubuntu-12.10-server-cloudimg-amd64-root.tar.gz'
|
||||||
VAGRANT_REPO = 'https://raw.github.com/mitchellh/vagrant/master'
|
|
||||||
|
|
||||||
def download(source, destination)
|
def download(source, destination)
|
||||||
destination = "#{File.dirname __FILE__}/cache/#{destination}"
|
destination = "#{File.dirname __FILE__}/#{destination}"
|
||||||
return if File.exists?(destination)
|
return if File.exists?(destination)
|
||||||
|
|
||||||
sh "wget #{source} -O #{destination}"
|
sh "wget #{source} -O #{destination}"
|
||||||
|
|
@ -61,8 +60,8 @@ end
|
||||||
# Fetches vagrant submodule
|
# Fetches vagrant submodule
|
||||||
`git submodule update --init`
|
`git submodule update --init`
|
||||||
|
|
||||||
# Cache container image between vagrant box destructions
|
# Download container image for building the base ubuntu-cloud box
|
||||||
download "#{IMAGE_ROOT}/#{IMAGE_NAME}", IMAGE_NAME
|
download "#{IMAGE_ROOT}/#{IMAGE_NAME}", "boxes/ubuntu-cloud/#{IMAGE_NAME}"
|
||||||
|
|
||||||
# Start vagrant
|
# Start vagrant
|
||||||
sh 'vagrant up'
|
sh 'vagrant up'
|
||||||
|
|
|
||||||
10
tasks/boxes.rake
Normal file
10
tasks/boxes.rake
Normal file
|
|
@ -0,0 +1,10 @@
|
||||||
|
namespace :boxes do
|
||||||
|
namespace :build do
|
||||||
|
desc 'Packages an Ubuntu cloud image as a Vagrant LXC box'
|
||||||
|
task 'ubuntu-cloud' do
|
||||||
|
sh 'mkdir -p boxes/output'
|
||||||
|
sh 'cp cache/ubuntu-12.10-server-cloudimg-amd64-root.tar.gz boxes/ubuntu-cloud'
|
||||||
|
sh 'cd boxes/ubuntu-cloud && tar -czf ../output/ubuntu-cloud.box ./*'
|
||||||
|
end
|
||||||
|
end
|
||||||
|
end
|
||||||
|
|
@ -1,4 +0,0 @@
|
||||||
desc 'Packages a dummy Vagrant box to be used during development'
|
|
||||||
task :package_dummy_box do
|
|
||||||
sh 'cd dummy-box-files/ && tar -czf ../dummy-ubuntu-cloudimg.box ./*'
|
|
||||||
end
|
|
||||||
Loading…
Reference in a new issue