2 set -e -f ${DRY_RUN:+-n} -u
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 sudo
install -m 644 -u root
-g root
/dev
/stdin
/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"'
95 info
'Ctrl-] pour se détacher de la console'
96 sudo xm console
$vm_fqdn
99 sudo xm shutdown
$vm_fqdn
101 rule_vm_stop_force
() {
102 sudo xm destroy
$vm_fqdn
105 rule_disk_mount
() { # DESCRIPTION: montage du disque de la VM depuis l'hôte
106 sudo kpartx
-a -v /dev
/domU
/$vm_fqdn-disk
107 #sudo xm block-attach 0 phy:/dev/domU/$vm_fqdn-disk $vm_dev_disk w
109 rule_disk_umount
() { # DESCRIPTION: démontage du disque de la VM depuis l'hôte
110 rule part_boot_umount
116 rule part_root_umount
118 rule part_home_umount
122 sudo kpartx
-d -v /dev
/domU
/$vm_fqdn-disk
123 #sudo xm block-detach 0 $vm_dev_disk
124 # XXX: DANGEREUX ; si jamais il bloque parce que le disque était encore utilisé :
125 # utiliser xm block-detach 0 $vm_dev_disk --force ;
126 # ôter les éventuels mappages LVM concernés avec dmsetup table et dmsetup remove --force ;
127 # ôter les mappages concernés dans /etc/lvm/cache/.cache,
128 # et pour bien trouver tous les mappages :
129 # % sudo find /dev -type l -exec sh -c 'printf "%s -> " "$@"; readlink "$@"' - {} \; | grep $vm_dev_disk
130 # enfin, ôter l'éventuel verrou dans /var/lock/lvm/
135 readonly vm_dev_disk_swap
="${vm_dev_disk}5"
136 readonly vm_dev_disk_root
="${vm_dev_disk}6"
137 readonly vm_dev_disk_var
="${vm_dev_disk}7"
138 readonly vm_dev_disk_home
="${vm_dev_disk}8"
141 readonly vm_lvm_pv
="${vm_dev_disk}2"
142 readonly vm_dev_disk_swap
=/dev
/$vm_lvm_vg/${vm_lvm_lv}_swap
143 readonly vm_dev_disk_root
=/dev
/$vm_lvm_vg/${vm_lvm_lv}_root
144 readonly vm_dev_disk_var
=/dev
/$vm_lvm_vg/${vm_lvm_lv}_var
145 readonly vm_dev_disk_home
=/dev
/$vm_lvm_vg/${vm_lvm_lv}_home
150 rule_disk_format
() { # DESCRIPTION: partitionnage du disque de la VM
153 sudo sfdisk
$vm_dev_disk <<-EOF
154 # partition table of $vm_dev_disk
157 ${vm_dev_disk}1 : start= 63, size= 497952, Id=83, bootable
158 ${vm_dev_disk}2 : start= 498015, size=418927005, Id= 5
159 ${vm_dev_disk}3 : start= 0, size= 0, Id= 0
160 ${vm_dev_disk}4 : start= 0, size= 0, Id= 0
161 ${vm_dev_disk}5 : start= 498078, size= 1959867, Id=82
162 ${vm_dev_disk}6 : start= 2458008, size= 29302497, Id=83
163 ${vm_dev_disk}7 : start= 31760568, size= 9767457, Id=83
164 ${vm_dev_disk}8 : start= 41528088, size=377896932, Id=83
168 sudo sfdisk
$vm_dev_disk <<-EOF
169 # partition table of $vm_dev_disk
172 ${vm_dev_disk}1 : start= 63, size= 497952, Id=83, bootable
173 ${vm_dev_disk}2 : start= 498015, size=418927005, Id=8E
178 #sudo partprobe $vm_dev_disk
179 sudo kpartx
-u -v /dev
/domU
/$vm_fqdn-disk
182 rule_part_lvm_format
() {
184 ! sudo vgs |
grep -q "^ $vm_lvm_vg " ||
185 sudo vgremove
$vm_lvm_vg
186 sudo pvcreate
--dataalignment 512k
$vm_lvm_pv
187 sudo vgcreate
--dataalignment 512k
$vm_lvm_vg $vm_lvm_pv
188 sudo lvcreate
--contiguous y
-n ${vm_lvm_lv}_swap
-L 1G
$vm_lvm_vg
189 sudo lvcreate
--contiguous y
-n ${vm_lvm_lv}_root
-L 15G
$vm_lvm_vg
190 sudo lvcreate
--contiguous y
-n ${vm_lvm_lv}_var
-L 5G
$vm_lvm_vg
191 sudo lvcreate
--contiguous y
-n ${vm_lvm_lv}_home
-l 99%FREE
$vm_lvm_vg
194 rule_part_lvm_mount
() {
197 sudo vgchange
-a y
$vm_lvm_vg
202 rule_part_lvm_umount
() {
205 rule part_root_umount
207 rule part_home_umount
208 ! sudo vgs |
grep -q "^ $vm_lvm_vg " ||
209 sudo vgchange
-a n
$vm_lvm_vg
215 rule_part_randomize
() { # SYNTAX: $part # NOTE: à anticiper
217 eval "sudo dd if=/dev/urandom of=\$vm_dev_disk_$part"
219 rule_part_randomize_stat
() { # SYNTAX: $part # DESCRIPTION: fait afficher la progression de rule_part_randomize
221 eval "pkill -USR1 -f \"^dd if=/dev/urandom of=\$vm_dev_disk_$part\""
223 rule__part_encrypted_format
() { # SYNTAX: $part # DESCRIPTION: formatage d'une partition distincte de /
224 # NOTE: la clef de chiffrement est dérivée de celle de /,
225 # / doit être déchiffrée pour que cela fonctionne.
227 eval "local dev=\"\$vm_dev_disk_$part\""
228 test ! -e /dev
/mapper
/${vm_lvm_lv}_root_deciphered ||
229 sudo
/bin
/sh
-c "/lib/cryptsetup/scripts/decrypt_derived ${vm_lvm_lv}_root_deciphered |
230 cryptsetup luksFormat --hash=sha512 --key-size=512 \
231 --cipher=aes-xts-essiv:sha256 --key-file=- --align-payload=8 $dev"
233 rule__part_encrypted_mount
() { # SYNTAX: $part
235 eval "local dev=\"\$vm_dev_disk_$part\""
236 test -e /dev
/mapper
/${vm_lvm_lv}_
${part}_deciphered ||
237 sudo
/bin
/sh
-c "/lib/cryptsetup/scripts/decrypt_derived ${vm_lvm_lv}_root_deciphered |
238 cryptsetup luksOpen --key-file=- $dev ${vm_lvm_lv}_${part}_deciphered"
240 rule__part_encrypted_umount
() { # SYNTAX: $part
242 eval "local dev=\"\$vm_dev_disk_$part\""
243 test ! -e /dev
/mapper
/${vm_lvm_lv}_
${part}_deciphered ||
244 sudo cryptsetup luksClose
${vm_lvm_lv}_
${part}_deciphered
247 rule_part_root_format
() {
248 if ! mount |
grep -q "^$vm_dev_disk_root "
250 sudo cryptsetup luksFormat
--hash=sha512
--key-size=512 \
251 --cipher=aes-xts-essiv
:sha256
--align-payload=8 $vm_dev_disk_root
252 sudo cryptsetup luksOpen
$vm_dev_disk_root ${vm_lvm_lv}_root_deciphered
253 sudo mke2fs
-t ext4
-c -c -m 5 -T ext4
-b $vm_e2fs_block_size \
254 -E resize
=30G
${vm_e2fs_extended_options} \
255 -L ${vm_lvm_lv}_root \
256 /dev
/mapper
/${vm_lvm_lv}_root_deciphered
257 ! mountpoint
-q /mnt
/$vm_fqdn
258 sudo mount
-v /dev
/mapper
/${vm_lvm_lv}_root_deciphered
/mnt
/$vm_fqdn
259 sudo
install -d -m 770 -o root
-g root \
265 /mnt
/$vm_fqdn/root
/src \
266 /mnt
/$vm_fqdn/root
/src
/$vm \
269 sudo umount
-v /mnt
/$vm_fqdn
270 sudo cryptsetup luksClose
${vm_lvm_lv}_root_deciphered
273 rule_part_root_mount
() {
274 test -e /dev
/mapper
/${vm_lvm_lv}_root_deciphered ||
275 sudo cryptsetup luksOpen
$vm_dev_disk_root ${vm_lvm_lv}_root_deciphered
276 mountpoint
-q /mnt
/$vm_fqdn ||
277 sudo mount
-v -t ext4
/dev
/mapper
/${vm_lvm_lv}_root_deciphered
/mnt
/$vm_fqdn
279 rule_part_root_umount
() {
280 ! mountpoint
-q /mnt
/$vm_fqdn ||
281 sudo umount
-v /mnt
/$vm_fqdn
282 ! test -e /dev
/mapper
/${vm_lvm_lv}_root_deciphered ||
283 sudo cryptsetup luksClose
${vm_lvm_lv}_root_deciphered
285 rule_part_swap_format
() {
286 rule _part_encrypted_format swap
287 rule _part_encrypted_mount swap
288 sudo mkswap
-f -L ${vm_lvm_lv}_swap \
289 /dev
/mapper
/${vm_lvm_lv}_swap_deciphered
290 rule _part_encrypted_umount swap
292 rule_part_boot_format
() {
293 mount |
grep -q "^$vm_dev_disk_boot " ||
294 sudo mke2fs
-t ext2
-c -c -m 5 -T small \
295 -E resize
=1G
${vm_e2fs_extended_options} \
296 -L ${vm_lvm_lv}_boot
$vm_dev_disk_boot
298 rule_part_boot_mount
() {
299 mountpoint
-q /mnt
/$vm_fqdn
300 test -d /mnt
/$vm_fqdn/boot
301 mountpoint
-q /mnt
/$vm_fqdn/boot ||
302 sudo mount
-v -t ext2
$vm_dev_disk_boot /mnt
/$vm_fqdn/boot
304 rule_part_boot_umount
() {
305 ! mountpoint
-q /mnt
/$vm_fqdn/boot ||
306 sudo umount
-v /mnt
/$vm_fqdn/boot
308 rule_part_var_format
() {
309 rule _part_encrypted_format var
310 rule _part_encrypted_mount var
311 sudo mke2fs
-t ext4
-c -c -m 5 -T ext4
-b $vm_e2fs_block_size \
312 -E resize
=10G
${vm_e2fs_extended_options} \
313 -L ${vm_lvm_lv}_var \
314 /dev
/mapper
/${vm_lvm_lv}_var_deciphered
315 rule _part_encrypted_umount var
317 rule_part_var_mount
() {
318 rule _part_encrypted_mount var
319 mountpoint
-q /mnt
/$vm_fqdn/var ||
320 sudo mount
-v -t ext4
/dev
/mapper
/${vm_lvm_lv}_var_deciphered
/mnt
/$vm_fqdn/var
322 rule_part_var_umount
() {
323 ! mountpoint
-q /mnt
/$vm_fqdn/var ||
324 sudo umount
-v /mnt
/$vm_fqdn/var
325 rule _part_encrypted_umount var
327 rule_part_home_format
() {
328 rule _part_encrypted_format home
329 rule _part_encrypted_mount home
330 sudo mke2fs
-t ext4
-c -c -m 0 -T ext4
-b $vm_e2fs_block_size \
331 -E resize
=400G
${vm_e2fs_extended_options} \
332 -L ${vm_lvm_lv}_home \
333 /dev
/mapper
/${vm_lvm_lv}_home_deciphered
334 # NOTE: -O quota pas supporté par e2fsprogs/squeeze
335 rule _part_encrypted_umount home
337 rule_part_home_mount
() {
338 rule _part_encrypted_mount home
339 mountpoint
-q /mnt
/$vm_fqdn/home ||
340 sudo mount
-v -t ext4
/dev
/mapper
/${vm_lvm_lv}_home_deciphered
/mnt
/$vm_fqdn/home
342 rule_part_home_umount
() {
343 ! mountpoint
-q /mnt
/$vm_fqdn/home ||
344 sudo umount
-v /mnt
/$vm_fqdn/home
345 rule _part_encrypted_umount home
348 rule_debian_install
() {
354 sudo DEBOOTSTRAP_DIR
=/usr
/share
/debootstrap
/ LANG
=C LC_CTYPE
=C debootstrap \
355 --arch=$vm_arch --verbose --keyring=/usr
/share
/keyrings
/debian-archive-keyring.gpg \
357 --include=$
(printf '%s,' \
396 $vm_lsb_name /mnt
/$vm_fqdn/ \
397 http
://ftp.fr.debian.org
/debian
/
399 rule part_boot_umount
400 rule part_root_umount
409 #rule_part_home_mount
410 mountpoint
-q /mnt
/$vm_fqdn/proc ||
411 sudo mount
-t proc proc
/mnt
/$vm_fqdn/proc
412 mountpoint
-q /mnt
/$vm_fqdn/sys ||
413 sudo mount
-t sysfs sys
/mnt
/$vm_fqdn/sys
414 mountpoint
-q /mnt
/$vm_fqdn/dev ||
415 sudo mount
--bind /dev
/mnt
/$vm_fqdn/dev
416 if test -d /mnt
/$vm_fqdn/root
/src
/vm
/.git
418 mountpoint
-q /mnt
/$vm_fqdn/root
/src
/vm ||
419 sudo mount
--bind "$tool" /mnt
/$vm_fqdn/root
/src
/vm
421 rsync
-a "$tool"/ /mnt
/$vm_fqdn/root
/src
/vm
423 sudo chroot
/mnt
/$vm_fqdn /bin
/bash || true
426 rule__chroot_clean
() {
427 ! sudo mountpoint
-q /mnt
/$vm_fqdn/root
/src
/vm ||
428 sudo umount
-v /mnt
/$vm_fqdn/root
/src
/vm
429 ! mountpoint
-q /mnt
/$vm_fqdn/dev ||
430 sudo umount
-v /mnt
/$vm_fqdn/dev
431 ! mountpoint
-q /mnt
/$vm_fqdn/sys ||
432 sudo umount
-v /mnt
/$vm_fqdn/sys
433 ! mountpoint
-q /mnt
/$vm_fqdn/proc ||
434 sudo umount
-v /mnt
/$vm_fqdn/proc
435 rule part_home_umount
437 rule part_boot_umount
438 rule part_root_umount
447 assert
'test "$(hostname --fqdn)" = "$vm_host"' vm_host