4 # template script for generating altlinux container for LXC
8 # lxc: linux Container library
11 # Alexey Shabalin <shaba@altlinux.org>
13 # This library is free software; you can redistribute it and/or
14 # modify it under the terms of the GNU Lesser General Public
15 # License as published by the Free Software Foundation; either
16 # version 2.1 of the License, or (at your option) any later version.
18 # This library is distributed in the hope that it will be useful,
19 # but WITHOUT ANY WARRANTY; without even the implied warranty of
20 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
21 # Lesser General Public License for more details.
23 # You should have received a copy of the GNU Lesser General Public
24 # License along with this library; if not, write to the Free Software
25 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
27 # Detect use under userns (unsupported)
29 [ "$arg" = "--" ] && break
30 if [ "$arg" = "--mapped-uid" -o "$arg" = "--mapped-gid" ]; then
31 echo "This template can't be used for unprivileged containers." 1>&2
32 echo "You may want to try the \"download\" template instead." 1>&2
37 # Make sure the usual locations are in PATH
38 export PATH
=$PATH:/usr
/sbin
:/usr
/bin
:/sbin
:/bin
42 cache_base
=@LOCALSTATEDIR@
/cache
/lxc
/altlinux
/$arch
43 default_path
=@LXCPATH@
44 default_profile
=default
45 profile_dir
=/etc
/lxc
/profiles
47 lxc_network_link
=virbr0
50 [ -f /etc
/altlinux-release
] && is_altlinux
=true
55 # disable selinux in altlinux
56 mkdir
-p $rootfs_path/selinux
57 echo 0 > $rootfs_path/selinux
/enforce
59 mkdir
-p ${rootfs_path}/etc
/net
/ifaces
/eth0
60 cat <<EOF > ${rootfs_path}/etc/net/ifaces/eth0/options
61 BOOTPROTO=${BOOTPROTO}
67 if [ ${BOOTPROTO} != "dhcp" ]; then
69 cat <<EOF > ${rootfs_path}/etc/net/ifaces/eth0/ipv4address
73 cat <<EOF > ${rootfs_path}/etc/net/ifaces/eth0/ipv4route
77 cat <<EOF > ${rootfs_path}/etc/net/ifaces/eth0/resolv.conf
81 cat <<EOF > ${rootfs_path}/etc/net/ifaces/eth0/ipv6address
85 cat <<EOF > ${rootfs_path}/etc/net/ifaces/eth0/ipv6route
92 cat <<EOF > ${rootfs_path}/etc/sysconfig/network
100 cat <<EOF > $rootfs_path/etc/hosts
101 127.0.0.1 localhost.localdomain localhost $name
103 # Allow to login at virsh console. loginuid.so doen't work in the absence of auditd.
104 # sed -i 's/^.*loginuid.so.*$/\#&/' ${rootfs_path}/etc/pam.d/common-login
106 # Allow root to login at virsh console
107 echo "pts/0" >> ${rootfs_path}/etc
/securetty
108 echo "console" >> ${rootfs_path}/etc
/securetty
111 for service
in network syslogd random NetworkManager
113 chroot
${rootfs_path} chkconfig
$service --list &>/dev
/null
&& chroot
${rootfs_path} chkconfig
$service on || true
115 chroot
${rootfs_path} systemctl
-q enable $service &>/dev
/null|| true
118 for service
in rawdevices fbsetfont
120 chroot
${rootfs_path} chkconfig
$service --list &>/dev
/null
&& chroot
${rootfs_path} chkconfig
$service off || true
121 chroot
${rootfs_path} systemctl
-q disable
$service &>/dev
/null || true
124 subst
's/^\([3-9]\+:[0-9]\+:respawn:\/sbin\/mingetty.*\)/#\1/' ${rootfs_path}/etc
/inittab
125 echo "c1:2345:respawn:/sbin/mingetty --noclear console" >> ${rootfs_path}/etc
/inittab
127 [ -f "${rootfs_path}/etc/syslog.conf" ] && \
128 subst
's,\/dev\/tty12,/var/log/syslog/console,' ${rootfs_path}/etc
/syslog.conf
130 dev_path
="${rootfs_path}/dev"
133 mknod
-m 666 ${dev_path}/null c
1 3
134 mknod
-m 666 ${dev_path}/zero c
1 5
135 mknod
-m 644 ${dev_path}/random c
1 8
136 mknod
-m 644 ${dev_path}/urandom c
1 9
137 mkdir
-m 755 ${dev_path}/pts
138 mkdir
-m 1777 ${dev_path}/shm
139 mknod
-m 666 ${dev_path}/tty c
5 0
140 chown root
:tty
${dev_path}/tty
141 mknod
-m 600 ${dev_path}/tty0 c
4 0
142 mknod
-m 600 ${dev_path}/tty1 c
4 1
143 mknod
-m 600 ${dev_path}/tty2 c
4 2
144 mknod
-m 600 ${dev_path}/tty3 c
4 3
145 mknod
-m 600 ${dev_path}/tty4 c
4 4
146 mknod
-m 600 ${dev_path}/console c
5 1
147 mknod
-m 666 ${dev_path}/full c
1 7
148 mknod
-m 600 ${dev_path}/initctl p
149 mknod
-m 666 ${dev_path}/ptmx c
5 2
150 chown root
:tty
${dev_path}/ptmx
151 ln -s /proc
/self
/fd
${dev_path}/fd
152 ln -s /proc
/kcore
${dev_path}/core
153 mkdir
-m 755 ${dev_path}/mapper
154 mknod
-m 600 ${dev_path}/mapper
/control c
10 236
155 mkdir
-m 755 ${dev_path}/net
156 mknod
-m 666 ${dev_path}/net
/tun c
10 200
158 if [ -n "${root_password}" ]; then
159 echo "setting root passwd to $root_password"
160 echo "root:$root_password" | chroot
$rootfs_path chpasswd
169 # check the mini altlinux was not already downloaded
170 INSTALL_ROOT
=$cache/partial
171 mkdir
-p $INSTALL_ROOT
172 if [ $?
-ne 0 ]; then
173 echo "Failed to create '$INSTALL_ROOT' directory"
177 # download a mini altlinux into a cache
178 echo "Downloading altlinux minimal ..."
179 APT_GET
="apt-get -o RPM::RootDir=$INSTALL_ROOT -y"
180 PKG_LIST
="$(grep -hs '^[^#]' "$profile_dir/$profile")"
181 # if no configuration file $profile -- fall back to default list of packages
182 [ -z "$PKG_LIST" ] && PKG_LIST
="interactivesystem apt apt-conf etcnet-full openssh-server systemd-sysvinit systemd-units systemd NetworkManager-daemon"
184 mkdir
-p $INSTALL_ROOT/var
/lib
/rpm
185 rpm
--root $INSTALL_ROOT --initdb
187 # some scripts want to have /dev/null at least
188 dev_path
="$INSTALL_ROOT/dev"
189 if [ ! -c "${dev_path}/null" ]; then
190 mkdir
-p "${dev_path}"
191 mknod
-m 666 "${dev_path}/null" c
1 3
194 $APT_GET install $PKG_LIST
196 if [ $?
-ne 0 ]; then
197 echo "Failed to download the rootfs, aborting."
201 mv "$INSTALL_ROOT" "$cache/rootfs"
202 echo "Download complete."
210 # make a local copy of the minialtlinux
211 echo -n "Copying rootfs to $rootfs_path ..."
212 #cp -a $cache/rootfs-$arch $rootfs_path || return 1
213 # i prefer rsync (no reason really)
214 mkdir
-p $rootfs_path
215 rsync
-Ha $cache/rootfs
/ $rootfs_path/
221 chroot
$cache/rootfs apt-get update
222 chroot
$cache/rootfs apt-get
-y dist-upgrade
227 mkdir
-p @LOCALSTATEDIR@
/lock
/subsys
/
230 if [ $?
-ne 0 ]; then
231 echo "Cache repository is busy."
235 echo "Checking cache download in $cache/rootfs ... "
236 if [ ! -e "$cache/rootfs" ]; then
238 if [ $?
-ne 0 ]; then
239 echo "Failed to download 'altlinux base'"
243 echo "Cache found. Updating..."
245 if [ $?
-ne 0 ]; then
246 echo "Failed to update 'altlinux base', continuing with last known good cache"
248 echo "Update finished"
252 echo "Copy $cache/rootfs to $rootfs_path ... "
254 if [ $?
-ne 0 ]; then
255 echo "Failed to copy rootfs"
259 ) 9>@LOCALSTATEDIR@
/lock
/subsys
/lxc-altlinux
267 mkdir
-p $config_path
268 grep -q "^lxc.rootfs" $config_path/config
2>/dev
/null ||
echo "lxc.rootfs = $rootfs_path" >> $config_path/config
269 cat <<EOF >> $config_path/config
273 lxc.cap.drop = sys_module mac_admin mac_override sys_time
275 # When using LXC with apparmor, uncomment the next line to run unconfined:
276 #lxc.aa_profile = unconfined
279 #lxc.net.0.type = $lxc_network_type
280 #lxc.net.0.flags = up
281 #lxc.net.0.link = $lxc_network_link
282 #lxc.net.0.name = veth0
283 #lxc.net.0.mtu = 1500
285 if [ ! -z ${ipv4} ]; then
286 cat <<EOF >> $config_path/config
287 lxc.net.0.ipv4 = $ipv4
290 if [ ! -z ${gw} ]; then
291 cat <<EOF >> $config_path/config
292 lxc.net.0.ipv4.gateway = $gw
295 if [ ! -z ${ipv6} ]; then
296 cat <<EOF >> $config_path/config
297 lxc.net.0.ipv6 = $ipv6
300 if [ ! -z ${gw6} ]; then
301 cat <<EOF >> $config_path/config
302 lxc.net.0.ipv6.gateway = $gw6
305 cat <<EOF >> $config_path/config
307 lxc.cgroup.devices.deny = a
309 lxc.cgroup.devices.allow = c 1:3 rwm
310 lxc.cgroup.devices.allow = c 1:5 rwm
312 lxc.cgroup.devices.allow = c 5:1 rwm
313 lxc.cgroup.devices.allow = c 5:0 rwm
314 lxc.cgroup.devices.allow = c 4:0 rwm
315 lxc.cgroup.devices.allow = c 4:1 rwm
317 lxc.cgroup.devices.allow = c 1:9 rwm
318 lxc.cgroup.devices.allow = c 1:8 rwm
319 lxc.cgroup.devices.allow = c 136:* rwm
320 lxc.cgroup.devices.allow = c 5:2 rwm
322 lxc.cgroup.devices.allow = c 10:135 rwm
324 lxc.mount.auto = cgroup:mixed proc:mixed sys:mixed
327 if [ $?
-ne 0 ]; then
328 echo "Failed to add configuration"
338 if [ ! -e $cache ]; then
342 # lock, so we won't purge while someone is creating a repository
346 echo "Cache repository is busy."
350 echo -n "Purging the download cache for ALTLinux-$release..."
351 rm --preserve-root --one-file-system -rf $cache && echo "Done." ||
exit 1
353 ) 9>@LOCALSTATEDIR@
/lock
/subsys
/lxc-altlinux
360 $1 -n|--name=<container_name>
361 [-p|--path=<path>] [-c|--clean] [-R|--release=<ALTLinux_release>]
362 [-4|--ipv4=<ipv4 address>] [-6|--ipv6=<ipv6 address>]
363 [-g|--gw=<gw address>] [-d|--dns=<dns address>]
364 [-P|--profile=<name of the profile>] [--rootfs=<path>]
365 [-A|--arch=<arch of the container>]
368 -n,--name container name, used to as an identifier for that container from now on
370 -p,--path path to where the container rootfs will be created, defaults to @LXCPATH@. The container config will go under @LXCPATH@ in that case
371 -c,--clean clean the cache
372 -R,--release ALTLinux release for the new container. if the host is ALTLinux, then it will defaultto the host's release.
373 -4,--ipv4 specify the ipv4 address to assign to the virtualized interface, eg. 192.168.1.123/24
374 -6,--ipv6 specify the ipv6 address to assign to the virtualized interface, eg. 2003:db8:1:0:214:1234:fe0b:3596/64
375 -g,--gw specify the default gw, eg. 192.168.1.1
376 -G,--gw6 specify the default gw, eg. 2003:db8:1:0:214:1234:fe0b:3596
377 -d,--dns specify the DNS server, eg. 192.168.1.2
378 -P,--profile Profile name is the file name in /etc/lxc/profiles contained packages name for install to cache.
379 -A,--arch NOT USED YET. Define what arch the container will be [i686,x86_64]
380 ---rootfs rootfs path
381 -h,--help print this help
386 options
=$
(getopt
-o hp
:n
:P
:cR
:4:6:g
:d
: -l help,rootfs
:,path
:,name
:,profile
:,clean
,release
:,ipv4
:,ipv6
:,gw
:,dns
: -- "$@")
387 if [ $?
-ne 0 ]; then
391 eval set -- "$options"
396 -h|
--help) usage
$0 && exit 0;;
397 -p|
--path) path
=$2; shift 2;;
398 --rootfs) rootfs_path
=$2; shift 2;;
399 -n|
--name) name
=$2; shift 2;;
400 -P|
--profile) profile
=$2; shift 2;;
401 -c|
--clean) clean
=1; shift 1;;
402 -R|
--release) release
=$2; shift 2;;
403 -4|
--ipv4) ipv4
=$2; shift 2;;
404 -6|
--ipv6) ipv6
=$2; shift 2;;
405 -g|
--gw) gw
=$2; shift 2;;
406 -d|
--dns) dns
=$2; shift 2;;
407 --) shift 1; break ;;
412 if [ ! -z "$clean" -a -z "$path" ]; then
417 type apt-get
>/dev
/null
2>&1
418 if [ $?
-ne 0 ]; then
419 echo "'apt-get' command is missing"
423 if [ -z "$path" ]; then
427 if [ -z "$profile" ]; then
428 profile
=$default_profile
431 if [ -z "$release" ]; then
432 if [ "$is_altlinux" ]; then
433 release
=$
(cat /etc
/altlinux-release |
awk '/^ALT/ {print $3}')
435 echo "This is not a ALTLinux host and release missing, use -R|--release to specify release"
440 if [ -z "$ipv4" -a -z "$ipv6" ]; then
446 if [ "$(id -u)" != "0" ]; then
447 echo "This script should be run as 'root'"
451 # check for 'lxc.rootfs' passed in through default config by lxc-create
452 if [ -z "$rootfs_path" ]; then
453 if grep -q '^lxc.rootfs' $path/config
2>/dev
/null
; then
454 rootfs_path
=$
(awk -F= '/^lxc.rootfs =/{ print $2 }' $path/config
)
456 rootfs_path
=$path/rootfs
460 config_path
=$default_path/$name
461 cache
=$cache_base/$release/$profile
464 if [ $?
-ne 0 ]; then
465 echo "failed to install altlinux"
470 if [ $?
-ne 0 ]; then
471 echo "failed to configure altlinux for a container"
476 if [ $?
-ne 0 ]; then
477 echo "failed write configuration file"
481 if [ ! -z "$clean" ]; then
485 echo "container rootfs and config created"
486 echo "network configured as $lxc_network_type in the $lxc_network_link"