2 set -e -f ${DRY_RUN:+-n} -u
4 .
"$tool"/lib
/functions.sh
7 rule_help
() { # SYNTAX: [--hidden]
8 local hidden
; [ ${1:+set} ] || hidden
=set
11 ce script regroupe des règles pour administrer la VM ($vm_fqdn)
12 _depuis_ son hôte ($vm_host) ;
13 il sert à la fois d'outil (aisément bidouillable)
14 et de documentation (préçise).
15 Voir \`$tool/vm_hosted' pour les règles côté VM hébergée.
16 SYNTAX: $0 \$RULE \${RULE}_SYNTAX
18 $(sed -ne "s/^rule_\(${hidden:+[^_]}[^ ]*\) () {\( *#.*\|\)/ \1\2/p" "$tool"/etc/vm.sh "$0")
20 TRACE # affiche les commandes avant leur exécution
21 $(sed -ne 's/^readonly \([^ ][^ =]*\).*}\( *#.*\|\)$/\t$\1\2/p' "$tool"/etc/vm.sh "$0")
25 readonly vm_dev_disk
=/dev
/mapper
/domU-$
(printf %s
"$vm_fqdn-disk" |
sed -e 's/-/--/g')
26 readonly vm_dev_disk_boot
="${vm_dev_disk}1"
31 git config
--replace branch.master.remote .
32 git config
--replace branch.master.merge refs
/remotes
/master
38 #git checkout -f -B master remotes/master
39 # NOTE: pas de -B sous squeeze
40 git checkout HEAD
'^' &&
41 git branch
-f master remotes
/master
&&
47 rule_vm_configure
() {
48 mk_reg mod
=644 own
=root
:root
/etc
/xen
/$vm_fqdn.cfg
<<-EOF
49 # -*- mode: python; -*-
50 # DOC: http://wiki.xen.org/wiki/Xen_Linux_PV_on_HVM_drivers
59 vif = ['mac=$vm_mac,bridge=$vm_bridge']
60 disk = ['phy:/dev/domU/$vm_fqdn-disk,hda,w']
61 device_model = 'qemu-dm'
63 #kernel = "/usr/lib/xen-4.0/boot/hvmloader"
65 #xen_platform_pci = 1 # NOTE: the guest VM can use optimized PV on HVM drivers
67 #kernel = "pv-grub.gz" # NOTE: pas encore dans Debian car il ne fonctionne qu'avec grub-legacy
68 #extra = "(hd0,0)/grub/grub.cfg"
69 bootloader = '/usr/bin/pygrub'
71 # boot on floppy (a), hard disk (c) or CD-ROM (d)
77 #vnclisten = "0.0.0.0"
83 on_poweroff = 'destroy'
89 test ! -e /dev
/domU
/$vm_fqdn-disk1
90 sudo xm create
$vm_fqdn.cfg
94 assert
'! pgrep -f "sudo xm console $vm_fqdn"'
96 NOTE: Ctrl-] pour se détacher de la console
98 sudo xm console
$vm_fqdn
101 sudo xm shutdown
$vm_fqdn
103 rule_vm_stop_force
() {
104 sudo xm destroy
$vm_fqdn
107 rule_disk_mount
() { # DESCRIPTION: montage du disque de la VM depuis l'hôte
108 sudo kpartx
-a -v /dev
/domU
/$vm_fqdn-disk
109 #sudo xm block-attach 0 phy:/dev/domU/$vm_fqdn-disk $vm_dev_disk w
111 rule_disk_umount
() { # DESCRIPTION: démontage du disque de la VM depuis l'hôte
112 rule part_boot_umount
118 rule part_root_umount
120 rule part_home_umount
124 sudo kpartx
-d -v /dev
/domU
/$vm_fqdn-disk
125 #sudo xm block-detach 0 $vm_dev_disk
126 # XXX: DANGEREUX ; si jamais il bloque parce que le disque était encore utilisé :
127 # utiliser xm block-detach 0 $vm_dev_disk --force ;
128 # ôter les éventuels mappages LVM concernés avec dmsetup table et dmsetup remove --force ;
129 # ôter les mappages concernés dans /etc/lvm/cache/.cache,
130 # et pour bien trouver tous les mappages :
131 # % sudo find /dev -type l -exec sh -c 'printf "%s -> " "$@"; readlink "$@"' - {} \; | grep $vm_dev_disk
132 # enfin, ôter l'éventuel verrou dans /var/lock/lvm/
137 readonly vm_dev_disk_swap
="${vm_dev_disk}5"
138 readonly vm_dev_disk_root
="${vm_dev_disk}6"
139 readonly vm_dev_disk_var
="${vm_dev_disk}7"
140 readonly vm_dev_disk_home
="${vm_dev_disk}8"
143 readonly vm_lvm_pv
="${vm_dev_disk}2"
144 readonly vm_dev_disk_swap
=/dev
/$vm_lvm_vg/${vm_lvm_lv}_swap
145 readonly vm_dev_disk_root
=/dev
/$vm_lvm_vg/${vm_lvm_lv}_root
146 readonly vm_dev_disk_var
=/dev
/$vm_lvm_vg/${vm_lvm_lv}_var
147 readonly vm_dev_disk_home
=/dev
/$vm_lvm_vg/${vm_lvm_lv}_home
152 rule_disk_format
() { # DESCRIPTION: partitionnage du disque de la VM
155 sudo sfdisk
$vm_dev_disk <<-EOF
156 # partition table of $vm_dev_disk
159 ${vm_dev_disk}1 : start= 63, size= 497952, Id=83, bootable
160 ${vm_dev_disk}2 : start= 498015, size=418927005, Id= 5
161 ${vm_dev_disk}3 : start= 0, size= 0, Id= 0
162 ${vm_dev_disk}4 : start= 0, size= 0, Id= 0
163 ${vm_dev_disk}5 : start= 498078, size= 1959867, Id=82
164 ${vm_dev_disk}6 : start= 2458008, size= 29302497, Id=83
165 ${vm_dev_disk}7 : start= 31760568, size= 9767457, Id=83
166 ${vm_dev_disk}8 : start= 41528088, size=377896932, Id=83
170 sudo sfdisk
$vm_dev_disk <<-EOF
171 # partition table of $vm_dev_disk
174 ${vm_dev_disk}1 : start= 63, size= 497952, Id=83, bootable
175 ${vm_dev_disk}2 : start= 498015, size=418927005, Id=8E
180 #sudo partprobe $vm_dev_disk
181 sudo kpartx
-u -v /dev
/domU
/$vm_fqdn-disk
184 rule_part_lvm_format
() {
186 ! sudo vgs |
grep -q "^ $vm_lvm_vg " ||
187 sudo vgremove
$vm_lvm_vg
188 sudo pvcreate
--dataalignment 512k
$vm_lvm_pv
189 sudo vgcreate
--dataalignment 512k
$vm_lvm_vg $vm_lvm_pv
190 sudo lvcreate
--contiguous y
-n ${vm_lvm_lv}_swap
-L 1G
$vm_lvm_vg
191 sudo lvcreate
--contiguous y
-n ${vm_lvm_lv}_root
-L 15G
$vm_lvm_vg
192 sudo lvcreate
--contiguous y
-n ${vm_lvm_lv}_var
-L 5G
$vm_lvm_vg
193 sudo lvcreate
--contiguous y
-n ${vm_lvm_lv}_home
-l 99%FREE
$vm_lvm_vg
196 rule_part_lvm_mount
() {
199 sudo vgchange
-a y
$vm_lvm_vg
204 rule_part_lvm_umount
() {
207 rule part_root_umount
209 rule part_home_umount
210 ! sudo vgs |
grep -q "^ $vm_lvm_vg " ||
211 sudo vgchange
-a n
$vm_lvm_vg
217 rule_part_randomize
() { # SYNTAX: $part # NOTE: à anticiper
219 eval "sudo dd if=/dev/urandom of=\$vm_dev_disk_$part"
221 rule_part_randomize_stat
() { # SYNTAX: $part # DESCRIPTION: fait afficher la progression de rule_part_randomize
223 eval "pkill -USR1 -f \"^dd if=/dev/urandom of=\$vm_dev_disk_$part\""
225 rule__part_encrypted_format
() { # SYNTAX: $part # DESCRIPTION: formatage d'une partition distincte de /
226 # NOTE: la clef de chiffrement est dérivée de celle de /,
227 # / doit être déchiffrée pour que cela fonctionne.
229 eval "local dev=\"\$vm_dev_disk_$part\""
230 test ! -e /dev
/mapper
/${vm_lvm_lv}_root_deciphered ||
231 sudo
/bin
/sh
-c "/lib/cryptsetup/scripts/decrypt_derived ${vm_lvm_lv}_root_deciphered |
232 cryptsetup luksFormat --hash=sha512 --key-size=512 \
233 --cipher=aes-xts-essiv:sha256 --key-file=- --align-payload=8 $dev"
235 rule__part_encrypted_mount
() { # SYNTAX: $part
237 eval "local dev=\"\$vm_dev_disk_$part\""
238 test -e /dev
/mapper
/${vm_lvm_lv}_
${part}_deciphered ||
239 sudo
/bin
/sh
-c "/lib/cryptsetup/scripts/decrypt_derived ${vm_lvm_lv}_root_deciphered |
240 cryptsetup luksOpen --key-file=- $dev ${vm_lvm_lv}_${part}_deciphered"
242 rule__part_encrypted_umount
() { # SYNTAX: $part
244 eval "local dev=\"\$vm_dev_disk_$part\""
245 test ! -e /dev
/mapper
/${vm_lvm_lv}_
${part}_deciphered ||
246 sudo cryptsetup luksClose
${vm_lvm_lv}_
${part}_deciphered
249 rule_part_root_format
() {
250 if ! mount |
grep -q "^$vm_dev_disk_root "
252 sudo cryptsetup luksFormat
--hash=sha512
--key-size=512 \
253 --cipher=aes-xts-essiv
:sha256
--key-file=- --align-payload=8 $vm_dev_disk_root
254 sudo cryptsetup luksOpen
--key-file=- $vm_dev_disk_root ${vm_lvm_lv}_root_deciphered
255 sudo mke2fs
-t ext4
-c -c -m 5 -T ext4
-b $vm_e2fs_block_size \
256 -E resize
=30G
${vm_e2fs_extended_options} \
257 -L ${vm_lvm_lv}_root \
258 /dev
/mapper
/${vm_lvm_lv}_root_deciphered
259 ! mountpoint
-q /mnt
/$vm_fqdn
260 sudo mount
-v /dev
/mapper
/${vm_lvm_lv}_root_deciphered
/mnt
/$vm_fqdn
261 mk_dir mod
=0770 own
=root
:root
/mnt
/$vm_fqdn/boot
262 mk_dir mod
=0770 own
=root
:root
/mnt
/$vm_fqdn/dev
263 mk_dir mod
=0770 own
=root
:root
/mnt
/$vm_fqdn/home
264 mk_dir mod
=0770 own
=root
:root
/mnt
/$vm_fqdn/proc
265 mk_dir mod
=0770 own
=root
:root
/mnt
/$vm_fqdn/sys
266 mk_dir mod
=0770 own
=root
:root
/mnt
/$vm_fqdn/var
267 mk_dir mod
=0770 own
=root
:root
/mnt
/$vm_fqdn/root
268 mk_dir mod
=0770 own
=root
:root
/mnt
/$vm_fqdn/root
/tool
269 mk_dir mod
=0770 own
=root
:root
/mnt
/$vm_fqdn/root
/tool
/ateliers
270 sudo umount
-v /mnt
/$vm_fqdn
271 sudo cryptsetup luksClose
${vm_lvm_lv}_root_deciphered
274 rule_part_root_mount
() {
275 test -e /dev
/mapper
/${vm_lvm_lv}_root_deciphered ||
276 sudo cryptsetup luksOpen
$vm_dev_disk_root ${vm_lvm_lv}_root_deciphered
277 mountpoint
-q /mnt
/$vm_fqdn ||
278 sudo mount
-v -t ext4
/dev
/mapper
/${vm_lvm_lv}_root_deciphered
/mnt
/$vm_fqdn
280 rule_part_root_umount
() {
281 ! mountpoint
-q /mnt
/$vm_fqdn ||
282 sudo umount
-v /mnt
/$vm_fqdn
283 ! test -e /dev
/mapper
/${vm_lvm_lv}_root_deciphered ||
284 sudo cryptsetup luksClose
${vm_lvm_lv}_root_deciphered
286 rule_part_root_backup_luks
() {
287 sudo cryptsetup luksHeaderBackup
$vm_dev_disk_root --header-backup-file .
/root.luks
289 rule_part_swap_format
() {
290 rule _part_encrypted_format swap
291 rule _part_encrypted_mount swap
292 sudo mkswap
-f -L ${vm_lvm_lv}_swap \
293 /dev
/mapper
/${vm_lvm_lv}_swap_deciphered
294 rule _part_encrypted_umount swap
296 rule_part_boot_format
() {
297 mount |
grep -q "^$vm_dev_disk_boot " ||
298 sudo mke2fs
-t ext2
-c -c -m 5 -T small \
299 -E resize
=1G
${vm_e2fs_extended_options} \
300 -L ${vm_lvm_lv}_boot
$vm_dev_disk_boot
302 rule_part_boot_mount
() {
303 mountpoint
-q /mnt
/$vm_fqdn
304 test -d /mnt
/$vm_fqdn/boot
305 mountpoint
-q /mnt
/$vm_fqdn/boot ||
306 sudo mount
-v -t ext2
$vm_dev_disk_boot /mnt
/$vm_fqdn/boot
308 rule_part_boot_umount
() {
309 ! mountpoint
-q /mnt
/$vm_fqdn/boot ||
310 sudo umount
-v /mnt
/$vm_fqdn/boot
312 rule_part_var_format
() {
313 rule _part_encrypted_format var
314 rule _part_encrypted_mount var
315 sudo mke2fs
-t ext4
-c -c -m 5 -T ext4
-b $vm_e2fs_block_size \
316 -E resize
=10G
${vm_e2fs_extended_options} \
317 -L ${vm_lvm_lv}_var \
318 /dev
/mapper
/${vm_lvm_lv}_var_deciphered
319 rule _part_encrypted_umount var
321 rule_part_var_mount
() {
322 rule _part_encrypted_mount var
323 mountpoint
-q /mnt
/$vm_fqdn/var ||
324 sudo mount
-v -t ext4
/dev
/mapper
/${vm_lvm_lv}_var_deciphered
/mnt
/$vm_fqdn/var
326 rule_part_var_umount
() {
327 ! mountpoint
-q /mnt
/$vm_fqdn/var ||
328 sudo umount
-v /mnt
/$vm_fqdn/var
329 rule _part_encrypted_umount var
331 rule_part_home_format
() {
332 rule _part_encrypted_format home
333 rule _part_encrypted_mount home
334 sudo mke2fs
-t ext4
-c -c -m 0 -T ext4
-b $vm_e2fs_block_size \
335 -E resize
=400G
${vm_e2fs_extended_options} \
336 -L ${vm_lvm_lv}_home \
337 /dev
/mapper
/${vm_lvm_lv}_home_deciphered
338 # NOTE: -O quota pas supporté par e2fsprogs/squeeze
339 rule _part_encrypted_umount home
341 rule_part_home_mount
() {
342 rule _part_encrypted_mount home
343 mountpoint
-q /mnt
/$vm_fqdn/home ||
344 sudo mount
-v -t ext4
/dev
/mapper
/${vm_lvm_lv}_home_deciphered
/mnt
/$vm_fqdn/home
346 rule_part_home_umount
() {
347 ! mountpoint
-q /mnt
/$vm_fqdn/home ||
348 sudo umount
-v /mnt
/$vm_fqdn/home
349 rule _part_encrypted_umount home
352 rule_debian_install
() {
358 sudo DEBOOTSTRAP_DIR
=/usr
/share
/debootstrap
/ LANG
=C LC_CTYPE
=C debootstrap \
359 --arch=$vm_arch --verbose --keyring=/usr
/share
/keyrings
/debian-archive-keyring.gpg \
361 --include=$
(printf '%s,' \
400 $vm_lsb_name /mnt
/$vm_fqdn/ \
401 http
://ftp.fr.debian.org
/debian
/
403 rule part_boot_umount
404 rule part_root_umount
413 #rule_part_home_mount
414 mountpoint
-q /mnt
/$vm_fqdn/proc ||
415 sudo mount
-t proc proc
/mnt
/$vm_fqdn/proc
416 mountpoint
-q /mnt
/$vm_fqdn/sys ||
417 sudo mount
-t sysfs sys
/mnt
/$vm_fqdn/sys
418 mountpoint
-q /mnt
/$vm_fqdn/dev ||
419 sudo mount
--bind /dev
/mnt
/$vm_fqdn/dev
420 if test -d /mnt
/$vm_fqdn/root
/tool
/vm
/.git
422 mountpoint
-q /mnt
/$vm_fqdn/root
/tool
/vm ||
423 sudo mount
--bind "$tool" /mnt
/$vm_fqdn/root
/tool
/vm
425 rsync
-a "$tool"/ /mnt
/$vm_fqdn/root
/tool
/vm
427 sudo chroot
/mnt
/$vm_fqdn /bin
/bash || true
430 rule__chroot_clean
() {
431 ! sudo mountpoint
-q /mnt
/$vm_fqdn/root
/tool
/vm ||
432 sudo umount
-v /mnt
/$vm_fqdn/root
/tool
/$vm
433 ! mountpoint
-q /mnt
/$vm_fqdn/dev ||
434 sudo umount
-v /mnt
/$vm_fqdn/dev
435 ! mountpoint
-q /mnt
/$vm_fqdn/sys ||
436 sudo umount
-v /mnt
/$vm_fqdn/sys
437 ! mountpoint
-q /mnt
/$vm_fqdn/proc ||
438 sudo umount
-v /mnt
/$vm_fqdn/proc
439 rule part_home_umount
441 rule part_boot_umount
442 rule part_root_umount
451 assert
'test "$(hostname --fqdn)" = "$vm_host"' vm_host