-
Notifications
You must be signed in to change notification settings - Fork 1.1k
/
lxc-opensuse.in
528 lines (439 loc) · 15.6 KB
/
lxc-opensuse.in
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
#!/bin/bash
#
# template script for generating OpenSUSE container for LXC
#
#
# lxc: linux Container library
# Authors:
# Daniel Lezcano <daniel.lezcano@free.fr>
# Frederic Crozat <fcrozat@suse.com>
# Michael H. Warfield <mhw@WittsEnd.com>
# Johannes Kastl <mail@ojkastl.de>
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
# This library 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
# Lesser General Public License for more details.
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
# Detect use under userns (unsupported)
for arg in "$@"; do
[ "$arg" = "--" ] && break
if [ "$arg" = "--mapped-uid" -o "$arg" = "--mapped-gid" ]; then
echo "This template can't be used for unprivileged containers." 1>&2
echo "You may want to try the \"download\" template instead." 1>&2
exit 1
fi
done
# Make sure the usual locations are in PATH
export PATH=$PATH:/usr/sbin:/usr/bin:/sbin:/bin
if [ -x /usr/bin/obs-build ]; then
BUILD=/usr/bin/obs-build
export BUILD_DIR=/usr/lib/obs-build
else
BUILD=/usr/bin/build
export BUILD_DIR=/usr/lib/build
fi
configure_opensuse()
{
rootfs=$1
hostname=$2
# set first network adapter as dhcp. This is the most common config.
cat <<EOF > $rootfs/etc/sysconfig/network/ifcfg-eth0
STARTMODE='auto'
BOOTPROTO='dhcp'
EOF
# create empty fstab
touch $rootfs/etc/fstab
# set the hostname
cat <<EOF > $rootfs/etc/HOSTNAME
$hostname
EOF
# ensure /etc/hostname is available too
ln -s -f HOSTNAME $rootfs/etc/hostname
# do not use hostname from HOSTNAME variable
cat <<EOF >> $rootfs/etc/sysconfig/cron
unset HOSTNAME
EOF
# set minimal hosts
cat <<EOF > $rootfs/etc/hosts
127.0.0.1 localhost $hostname
EOF
# disable yast->bootloader in container
cat <<EOF > $rootfs/etc/sysconfig/bootloader
LOADER_TYPE=none
LOADER_LOCATION=none
EOF
# set /dev/console as securetty
cat << EOF >> $rootfs/etc/securetty
console
EOF
cat <<EOF >> $rootfs/etc/sysconfig/boot
# disable root fsck
ROOTFS_FSCK="0"
ROOTFS_BLKDEV="/dev/null"
EOF
# remove pointless services in a container
ln -s /dev/null $rootfs/etc/systemd/system/proc-sys-fs-binfmt_misc.automount
ln -s /dev/null $rootfs/etc/systemd/system/console-shell.service
ln -s /dev/null $rootfs/etc/systemd/system/systemd-vconsole-setup.service
sed -e 's/ConditionPathExists=.*//' $rootfs/usr/lib/systemd/system/getty@.service > $rootfs/etc/systemd/system/getty@.service
ln -s getty@.service $rootfs/etc/systemd/system/getty@tty1.service
ln -s ../getty@.service $rootfs/etc/systemd/system/getty.target.wants/getty@console.service
ln -s -f ../getty@.service $rootfs/etc/systemd/system/getty.target.wants/getty@tty1.service
ln -s ../getty@.service $rootfs/etc/systemd/system/getty.target.wants/getty@tty2.service
ln -s ../getty@.service $rootfs/etc/systemd/system/getty.target.wants/getty@tty3.service
ln -s ../getty@.service $rootfs/etc/systemd/system/getty.target.wants/getty@tty4.service
touch $rootfs/etc/sysconfig/kernel
echo "Please change root-password !"
echo "root:root" | chpasswd -R $rootfs
return 0
}
download_opensuse()
{
cache=$1
arch=$2
if [ ! -x ${BUILD} ]; then
echo "Could not create openSUSE template :"
echo "you need to install \"build\" package"
return 1
fi
# check the mini opensuse was not already downloaded
mkdir -p "$cache/partial-$arch"
if [ $? -ne 0 ]; then
echo "Failed to create '$cache/partial-$arch' directory"
return 1
fi
# download a mini opensuse into a cache
echo "Downloading opensuse minimal ..."
mkdir -p "$cache/partial-$arch-packages"
zypper --quiet --root $cache/partial-$arch-packages --non-interactive ar http://download.opensuse.org/distribution/$DISTRO/repo/oss/ repo-oss || return 1
# Leap update repos were rearranged
if [[ $DISTRO == "leap/4"* ]]; then
zypper --quiet --root $cache/partial-$arch-packages --non-interactive ar http://download.opensuse.org/update/$DISTRO/oss/ update || return 1
else
zypper --quiet --root $cache/partial-$arch-packages --non-interactive ar http://download.opensuse.org/update/$DISTRO/ update || return 1
fi
zypper --quiet --root $cache/partial-$arch-packages --non-interactive --gpg-auto-import-keys update || return 1
zypper --root $cache/partial-$arch-packages --non-interactive in --auto-agree-with-licenses --download-only zypper lxc patterns-openSUSE-base bash iputils sed tar rsyslog || return 1
cat > $cache/partial-$arch-packages/opensuse.conf << EOF
Preinstall: aaa_base bash coreutils diffutils
Preinstall: filesystem fillup glibc grep insserv-compat perl-base
Preinstall: libbz2-1 libncurses5 pam
Preinstall: permissions libreadline6 rpm sed tar libz1 libselinux1
Preinstall: liblzma5 libcap2 libacl1 libattr1
Preinstall: libpopt0 libelf1 liblua5_1
Preinstall: libpcre1
RunScripts: aaa_base
Support: zypper
Support: patterns-openSUSE-base
Support: lxc
Support: ncurses-utils
Support: iputils
Support: udev
Support: netcfg
Support: hwinfo insserv-compat module-init-tools openSUSE-release openssh
Support: pwdutils rpcbind sysconfig
Ignore: rpm:suse-build-key,build-key
Ignore: systemd:systemd-presets-branding
EOF
if [ $DISTRO = "13.2" ]
then
echo "Support: python3-base" >> $cache/partial-$arch-packages/opensuse.conf
fi
# dhcpcd is not in the default repos since Leap 42.1
if [[ $DISTRO != "leap/4"* ]]
then
echo "Support: dhcpcd" >> $cache/partial-$arch-packages/opensuse.conf
fi
# Leap doesn't seem to have iproute2 utils installed
if [[ $DISTRO == "leap/4"* ]]
then
echo "Support: net-tools iproute2" >> $cache/partial-$arch-packages/opensuse.conf
fi
if [ "$arch" = "i686" ]; then
mkdir -p $cache/partial-$arch-packages/var/cache/zypp/packages/repo-oss/suse/i686/
for i in "$cache/partial-$arch-packages/var/cache/zypp/packages/repo-oss/suse/i586/*" ; do
ln -s $i $cache/partial-$arch-packages/var/cache/zypp/packages/repo-oss/suse/i686/
done
mkdir -p $cache/partial-$arch-packages/var/cache/zypp/packages/update/i686
for i in "$cache/partial-$arch-packages/var/cache/zypp/packages/update/i586/*" ; do
ln -s $i $cache/partial-$arch-packages/var/cache/zypp/packages/update/i686/
done
fi
# openSUSE 13.2 has no noarch directory in update
[ -d $cache/partial-$arch-packages/var/cache/zypp/packages/update/noarch ] || mkdir -p $cache/partial-$arch-packages/var/cache/zypp/packages/update/noarch
CLEAN_BUILD=1 BUILD_ARCH="$arch" BUILD_ROOT="$cache/partial-$arch" BUILD_DIST="$cache/partial-$arch-packages/opensuse.conf" PATH="$PATH:$BUILD_DIR" $BUILD_DIR/init_buildsystem --clean --configdir $BUILD_DIR/configs --cachedir $cache/partial-$arch-cache --repository $cache/partial-$arch-packages/var/cache/zypp/packages/repo-oss/suse/$arch --repository $cache/partial-$arch-packages/var/cache/zypp/packages/repo-oss/suse/noarch --repository $cache/partial-$arch-packages/var/cache/zypp/packages/update/$arch --repository $cache/partial-$arch-packages/var/cache/zypp/packages/update/noarch || return 1
chroot $cache/partial-$arch /usr/bin/zypper --quiet --non-interactive ar http://download.opensuse.org/distribution/$DISTRO/repo/oss repo-oss || return 1
if [[ $DISTRO == "leap/4"* ]]; then
chroot $cache/partial-$arch /usr/bin/zypper --quiet --non-interactive ar http://download.opensuse.org/update/$DISTRO/oss update || return 1
else
chroot $cache/partial-$arch /usr/bin/zypper --quiet --non-interactive ar http://download.opensuse.org/update/$DISTRO/ update || return 1
fi
# really clean the image
rm -fr $cache/partial-$arch/{.build,.guessed_dist,.srcfiles*,installed-pkg}
rm -fr $cache/partial-$arch/dev
# make sure we have a minimal /dev
mkdir -p "$cache/partial-$arch/dev"
mknod -m 666 $cache/partial-$arch/dev/null c 1 3
mknod -m 666 $cache/partial-$arch/dev/zero c 1 5
# create mtab symlink
rm -f $cache/partial-$arch/etc/mtab
ln -sf /proc/self/mounts $cache/partial-$arch/etc/mtab
# ensure /var/run and /run are symlinked
rm -fr $cache/partial-$arch/var/run
ln -s -f ../run $cache/partial-$arch/var/run
if [ $? -ne 0 ]; then
echo "Failed to download the rootfs, aborting."
return 1
fi
rm -fr "$cache/partial-$arch-packages"
mv "$1/partial-$arch" "$1/rootfs-$arch"
echo "Download complete."
return 0
}
copy_opensuse()
{
cache=$1
arch=$2
rootfs=$3
# make a local copy of the mini opensuse
echo "Copying rootfs to $rootfs ..."
mkdir -p $rootfs
rsync -Ha $cache/rootfs-$arch/ $rootfs/ || return 1
return 0
}
install_opensuse()
{
# Allow the cache base to be set by environment variable
cache="${LXC_CACHE_PATH:-@LOCALSTATEDIR@/cache/lxc/opensuse/$DISTRO}"
rootfs=$1
mkdir -p @LOCALSTATEDIR@/lock/subsys/
(
flock -x 9
if [ $? -ne 0 ]; then
echo "Cache repository is busy."
return 1
fi
echo "Checking cache download in $cache/rootfs-$arch ... "
if [ ! -e "$cache/rootfs-$arch" ]; then
download_opensuse $cache $arch
if [ $? -ne 0 ]; then
echo "Failed to download 'opensuse base'"
return 1
fi
fi
echo "Copy $cache/rootfs-$arch to $rootfs ... "
copy_opensuse $cache $arch $rootfs
if [ $? -ne 0 ]; then
echo "Failed to copy rootfs"
return 1
fi
return 0
) 9>@LOCALSTATEDIR@/lock/subsys/lxc-opensuse
return $?
}
# Generate a random hardware (MAC) address composed of FE followed by
# 5 random bytes...
create_hwaddr()
{
openssl rand -hex 5 | sed -e 's/\(..\)/:\1/g; s/^/fe/'
}
copy_configuration()
{
path=$1
rootfs=$2
name=$3
grep -q "^lxc.rootfs" $path/config 2>/dev/null || echo "
lxc.rootfs = $rootfs_path
" >> $path/config
# The following code is to create static MAC addresses for each
# interface in the container. This code will work for multiple
# interfaces in the default config. It will also strip any
# hwaddr stanzas out of the default config since we can not share
# MAC addresses between containers.
#
# This code is largely mimiced from the Fedora Template.
mv $path/config $path/config.def
while read LINE
do
# This should catch variable expansions from the default config...
if expr "${LINE}" : '.*\$' > /dev/null 2>&1
then
LINE=$(eval "echo \"${LINE}\"")
fi
# There is a tab and a space in the regex bracket below!
# Seems that \s doesn't work in brackets.
KEY=$(expr "${LINE}" : '\s*\([^ ]*\)\s*=')
if [[ "${KEY}" != "lxc.network.hwaddr" ]]
then
echo "${LINE}" >> $path/config
if [[ "${KEY}" == "lxc.network.link" ]]
then
echo "lxc.network.hwaddr = $(create_hwaddr)" >> $path/config
fi
fi
done < $path/config.def
rm -f $path/config.def
if [ -e "@LXCTEMPLATECONFIG@/opensuse.common.conf" ]; then
echo "
# Include common configuration
lxc.include = @LXCTEMPLATECONFIG@/opensuse.common.conf
" >> $path/config
fi
# Append things which require expansion here...
cat <<EOF >> $path/config
lxc.arch = $arch
lxc.utsname = $name
lxc.mount.auto = cgroup:mixed proc:mixed sys:mixed
# When using LXC with apparmor, uncomment the next line to run unconfined:
lxc.aa_profile = unconfined
# example simple networking setup, uncomment to enable
#lxc.network.type = $lxc_network_type
#lxc.network.flags = up
#lxc.network.link = $lxc_network_link
#lxc.network.name = eth0
# Additional example for veth network type
# static MAC address,
#lxc.network.hwaddr = 00:16:3e:77:52:20
# persistent veth device name on host side
# Note: This may potentially collide with other containers of same name!
#lxc.network.veth.pair = v-$name-e0
EOF
if [ $? -ne 0 ]; then
echo "Failed to add configuration"
return 1
fi
return 0
}
clean()
{
cache="${LXC_CACHE_PATH:-@LOCALSTATEDIR@/cache/lxc/opensuse}"
if [ ! -e $cache ]; then
exit 0
fi
# lock, so we won't purge while someone is creating a repository
(
flock -x 9
if [ $? != 0 ]; then
echo "Cache repository is busy."
exit 1
fi
echo -n "Purging the download cache..."
rm --preserve-root --one-file-system -rf $cache && echo "Done." || exit 1
exit 0
) 9>@LOCALSTATEDIR@/lock/subsys/lxc-opensuse
}
usage()
{
cat <<EOF
$1 -h|--help -p|--path=<path> -r|--release nn.n --clean
Please give the release as 13.1, 13.2 etc.
If no release is given, openSUSE Leap 42.2 is installed.
EOF
return 0
}
# Make arch a global. This may become configurable?
arch=$(uname -m)
options=$(getopt -o hp:n:r:c -l help,rootfs:,path:,name:,release:,clean -- "$@")
if [ $? -ne 0 ]; then
usage $(basename $0)
exit 1
fi
eval set -- "$options"
while true
do
case "$1" in
-h|--help) usage $0 && exit 0;;
-p|--path) path=$2; shift 2;;
--rootfs) rootfs=$2; shift 2;;
-n|--name) name=$2; shift 2;;
-r|--release) DISTRO=$2; shift 2;;
-c|--clean) clean=1; shift 1;;
--) shift 1; break ;;
*) break ;;
esac
done
if [ ! -z "$clean" -a -z "$path" ]; then
clean || exit 1
exit 0
fi
type zypper > /dev/null
if [ $? -ne 0 ]; then
echo "'zypper' command is missing"
exit 1
fi
if [ -z "$path" ]; then
echo "'path' parameter is required"
exit 1
fi
if grep -q Harlequin /etc/os-release || grep -q Tumbleweed /etc/os-release ; then
BVER=`rpm -q --qf '%{version}\n' build`
if [ $? -ne 0 -o "$BVER" -lt "20141120" ]; then
echo "Building openSUSE containers with your version of the build package is broken. Please install the update to version 20141120 or newer."
exit 1
fi
fi
if [ -z "$DISTRO" ]; then
echo ""
echo "No release selected, using openSUSE Leap 42.2"
DISTRO="leap/42.2"
else
echo ""
case "$DISTRO" in
13.1)
echo "Selected openSUSE 13.1"
;;
13.2)
echo "Selected openSUSE 13.2"
;;
42.1|leap/42.1|leap)
echo "Selected openSUSE Leap 42.1"
DISTRO="leap/42.1"
;;
42.2|leap/42.2|422)
echo "Selected openSUSE Leap 42.2"
DISTRO="leap/42.2"
;;
*)
echo "You have chosen an invalid release, quitting..."
exit 1
;;
esac
fi
if [ "$(id -u)" != "0" ]; then
echo "This script should be run as 'root'"
exit 1
fi
# detect rootfs
config="$path/config"
if [ -z "$rootfs" ]; then
if grep -q '^lxc.rootfs' $config 2>/dev/null ; then
rootfs=$(awk -F= '/^lxc.rootfs =/{ print $2 }' $config)
else
rootfs=$path/rootfs
fi
fi
install_opensuse $rootfs
if [ $? -ne 0 ]; then
echo "failed to install opensuse"
exit 1
fi
configure_opensuse $rootfs $name
if [ $? -ne 0 ]; then
echo "failed to configure opensuse for a container"
exit 1
fi
copy_configuration $path $rootfs $name
if [ $? -ne 0 ]; then
echo "failed write configuration file"
exit 1
fi
if [ ! -z "$clean" ]; then
clean || exit 1
exit 0
fi