Modification : ateliers_host : continue LVM.

[lhc/ateliers.git] / ateliers_host

diff --git a/ateliers_host b/ateliers_host
index f671a97..46ef940 100755 (executable)
--- a/ateliers_host
+++ b/ateliers_host
@@ -3,6 +3,7 @@ set -e -f ${DRY_RUN:+-n} -u
 
 tool=${0%/*}
 . "$tool"/env.sh
+. "$tool"/inc.sh
 
 rule_help () {
        cat >&2 <<-EOF
@@ -12,14 +13,14 @@ rule_help () {
                             Voir \`$tool/ateliers_hosted' pour les utilitaires côté VM hébergée.
                SYNTAX: $0 \$RULE \${RULE}_SYNTAX
                RULES:
-               $(sed -ne 's/^rule_\([^_][^ ]*\) () {\( *#.*\|\)/\t\1\2/p' "$0")
+               $(sed -ne 's/^rule_\([^_][^ ]*\) () {\( *#.*\|\)/\t\1\2/p' "$tool"/env.sh "$0")
                ENVIRONMENT:
                  TRACE # affiche les commandes avant leur exécution
                $(sed -ne 's/^readonly \([^ ][^ =]*\).*}\( *#.*\|\)$/\t$\1\2/p' "$tool"/env.sh "$0")
                EOF
  }
 
-readonly vm_dev_disk="/dev/xvda"
+readonly vm_dev_disk=/dev/mapper/domU-$(printf %s "$vm_fqdn-disk" | sed -e 's/-/--/g')
 readonly vm_dev_disk_boot="${vm_dev_disk}1"
 
 rule_xen_config_init () {
@@ -62,8 +63,8 @@ rule_xen_off () {
  }
 
 rule_disk_mount () { # DESCRIPTION: montage du disque de la VM depuis l'hôte
-       sudo xm block-attach 0 phy:/dev/domU/$vm_fqdn-disk $vm_dev_disk w
-       # NOTE: on pourrait utiliser kpartx à la place je pense ; détail.
+       sudo kpartx -a -v /dev/domU/$vm_fqdn-disk
+       #sudo xm block-attach 0 phy:/dev/domU/$vm_fqdn-disk $vm_dev_disk w
  }
 rule_disk_umount () { # DESCRIPTION: démontage du disque de la VM depuis l'hôte
        rule_part_boot_umount
@@ -78,27 +79,32 @@ rule_disk_umount () { # DESCRIPTION: démontage du disque de la VM depuis l'hôt
                ;;
         (*) exit 1;;
         esac
-       sudo xm block-detach 0 $vm_dev_disk
+       sudo kpartx -d -v /dev/domU/$vm_fqdn-disk
+       #sudo xm block-detach 0 $vm_dev_disk
+       # XXX: DANGEREUX ; si jamais il bloque parce que le disque était encore utilisé :
+       #      utiliser xm block-detach 0 $vm_dev_disk --force ;
+       #      ôter les éventuels mappages LVM concernés avec dmsetup table et dmsetup remove --force ;
+       #      ôter les mappages concernés dans /etc/lvm/cache/.cache,
+       #      et pour bien trouver tous les mappages :
+       #        % sudo find /dev -type l -exec sh -c 'printf "%s -> " "$@"; readlink "$@"' - {} \; | grep $vm_dev_disk
+       #      enfin, ôter l'éventuel verrou dans /var/lock/lvm/
  }
 
 case $vm_use_lvm in
-(no)
+ (no)
        readonly vm_dev_disk_swap="${vm_dev_disk}5"
        readonly vm_dev_disk_root="${vm_dev_disk}6"
        readonly vm_dev_disk_var="${vm_dev_disk}7"
        readonly vm_dev_disk_home="${vm_dev_disk}8"
        ;;
-(yes)
+ (yes)
        readonly vm_lvm_pv="${vm_dev_disk}2"
-       readonly vm_lvm_vg=$vm
-       readonly vm_lvm_dev=$(printf %s $vm_lvm_vg | sed -e 's/-/--/g')
-       readonly vm_lvm_lv=$vm
-       readonly vm_dev_disk_swap=/dev/mapper/$vm_lvm_dev-${vm_lvm_lv}_swap
-       readonly vm_dev_disk_root=/dev/mapper/$vm_lvm_dev-${vm_lvm_lv}_root
-       readonly vm_dev_disk_var=/dev/mapper/$vm_lvm_dev-${vm_lvm_lv}_var
-       readonly vm_dev_disk_home=/dev/mapper/$vm_lvm_dev-${vm_lvm_lv}home
+       readonly vm_dev_disk_swap=/dev/$vm_lvm_vg/${vm_lvm_lv}_swap
+       readonly vm_dev_disk_root=/dev/$vm_lvm_vg/${vm_lvm_lv}_root
+       readonly vm_dev_disk_var=/dev/$vm_lvm_vg/${vm_lvm_lv}_var
+       readonly vm_dev_disk_home=/dev/$vm_lvm_vg/${vm_lvm_lv}_home
        ;;
-(*)
+ (*)
        exit 1;;
  esac
 
@@ -130,7 +136,8 @@ rule_disk_format () { # DESCRIPTION: partitionnage du disque de la VM
                ;;
        (*) exit 1;;
         esac
-       sudo partprobe $vm_dev_disk
+       #sudo partprobe $vm_dev_disk
+       sudo kpartx -u -v /dev/domU/$vm_fqdn-disk
  }
 
 rule_part_lvm_format () {
@@ -174,16 +181,16 @@ rule__part_encrypted_format () { # SYNTAX: $part # DESCRIPTION: formatage d'une
        local part=$1
        eval "local dev=\$vm_dev_disk_$part"
        test ! -e /dev/mapper/${vm}_root_deciphered ||
-       sudo /lib/cryptsetup/scripts/decrypt_derived ${vm}_root_deciphered |
-       sudo cryptsetup luksFormat --hash=sha512 --key-size=512 \
-        --cipher=aes-xts-essiv:sha256 --key-file=- --align-payload=8 $dev
+       sudo /bin/sh -c "/lib/cryptsetup/scripts/decrypt_derived ${vm}_root_deciphered |
+       cryptsetup luksFormat --hash=sha512 --key-size=512 \
+        --cipher=aes-xts-essiv:sha256 --key-file=- --align-payload=8 $dev"
  }
 rule__part_encrypted_mount () { # SYNTAX: $part
        local part=$1
        eval "local dev=\$vm_dev_disk_$part"
-       test ! -e /dev/mapper/${vm}_root_deciphered ||
-       sudo /lib/cryptsetup/scripts/decrypt_derived ${vm}_root_deciphered |
-       sudo cryptsetup luksOpen --key-file=- $dev ${vm}_${part}_deciphered
+       test -e /dev/mapper/${vm}_${part}_deciphered ||
+       sudo /bin/sh -c "/lib/cryptsetup/scripts/decrypt_derived ${vm}_root_deciphered |
+       cryptsetup luksOpen --key-file=- $dev ${vm}_${part}_deciphered"
  }
 rule__part_encrypted_umount () { # SYNTAX: $part
        local part=$1
@@ -199,7 +206,7 @@ rule_part_root_format () {
                 --cipher=aes-xts-essiv:sha256 --key-file=- --align-payload=8 $vm_dev_disk_root
                sudo cryptsetup luksOpen --key-file=- $vm_dev_disk_root ${vm}_root_deciphered
                sudo mke2fs -t ext4 -c -c -m 5 -T ext4 -b $vm_e2fs_block_size \
-                -E resize=15G${vm_e2fs_extended_options} \
+                -E resize=30G${vm_e2fs_extended_options} \
                 -L ${vm}_root \
                 /dev/mapper/${vm}_root_deciphered
                ! mountpoint -q /mnt/$vm_fqdn
@@ -210,14 +217,18 @@ rule_part_root_format () {
                mk_dir mod=0770 own=root:root /mnt/$vm_fqdn/proc
                mk_dir mod=0770 own=root:root /mnt/$vm_fqdn/sys
                mk_dir mod=0770 own=root:root /mnt/$vm_fqdn/var
+               mk_dir mod=0770 own=root:root /mnt/$vm_fqdn/root
+               mk_dir mod=0770 own=root:root /mnt/$vm_fqdn/root/tool
+               mk_dir mod=0770 own=root:root /mnt/$vm_fqdn/root/tool/ateliers
                sudo umount -v /mnt/$vm_fqdn
+               sudo cryptsetup luksClose ${vm}_root_deciphered
         fi
  }
 rule_part_root_mount () {
        test -e /dev/mapper/${vm}_root_deciphered ||
        sudo cryptsetup luksOpen $vm_dev_disk_root ${vm}_root_deciphered
-       ! mountpoint -q /mnt/$vm_fqdn ||
-       sudo mount -v /dev/mapper/${vm}_root_deciphered /mnt/$vm_fqdn
+       mountpoint -q /mnt/$vm_fqdn ||
+       sudo mount -v -t ext4 /dev/mapper/${vm}_root_deciphered /mnt/$vm_fqdn
  }
 rule_part_root_umount () {
        ! mountpoint -q /mnt/$vm_fqdn ||
@@ -225,6 +236,9 @@ rule_part_root_umount () {
        ! test -e     /dev/mapper/${vm}_root_deciphered ||
        sudo cryptsetup luksClose ${vm}_root_deciphered
  }
+rule_part_root_backup_luks () {
+       sudo cryptsetup luksHeaderBackup $vm_dev_disk_root --header-backup-file ./root.luks
+ }
 rule_part_swap_format () {
        rule__part_encrypted_format swap
        rule__part_encrypted_mount  swap
@@ -240,8 +254,8 @@ rule_part_boot_format () {
 rule_part_boot_mount () {
        mountpoint -q /mnt/$vm_fqdn
        test -d /mnt/$vm_fqdn/boot
-       mountpoint -q                      /mnt/$vm_fqdn/boot ||
-       sudo mount -v $vm_dev_disk_boot /mnt/$vm_fqdn/boot
+       mountpoint -q                           /mnt/$vm_fqdn/boot ||
+       sudo mount -v -t ext2 $vm_dev_disk_boot /mnt/$vm_fqdn/boot
  }
 rule_part_boot_umount () {
        ! mountpoint -q /mnt/$vm_fqdn/boot ||
@@ -259,7 +273,7 @@ rule_part_var_format () {
 rule_part_var_mount () {
        rule__part_encrypted_mount var
        mountpoint -q /mnt/$vm_fqdn/var ||
-       sudo mount -v /dev/mapper/${vm}_var_deciphered /mnt/$vm_fqdn/var
+       sudo mount -v -t ext4 /dev/mapper/${vm}_var_deciphered /mnt/$vm_fqdn/var
  }
 rule_part_var_umount () {
        ! mountpoint -q /mnt/$vm_fqdn/var ||
@@ -271,15 +285,15 @@ rule_part_home_format () {
        rule__part_encrypted_mount  home
        sudo mke2fs -t ext4 -c -c -m 0 -T ext4 -b $vm_e2fs_block_size \
         -E resize=400G${vm_e2fs_extended_options} \
-        -O quota \
         -L ${vm}_home \
         /dev/mapper/${vm}_home_deciphered
+        # NOTE: -O quota pas supporté par e2fsprogs/squeeze
        rule__part_encrypted_umount home
  }
 rule_part_home_mount () {
        rule__part_encrypted_mount home
        mountpoint -q /mnt/$vm_fqdn/home ||
-       sudo mount -v /dev/mapper/${vm}_home_deciphered /mnt/$vm_fqdn/home
+       sudo mount -v -t ext4 /dev/mapper/${vm}_home_deciphered /mnt/$vm_fqdn/home
  }
 rule_part_home_umount () {
        ! mountpoint -q /mnt/$vm_fqdn/home ||
@@ -288,6 +302,9 @@ rule_part_home_umount () {
  }
 
 rule_debian_install () {
+       rule_part_root_mount
+       rule_part_boot_mount
+       rule_part_var_mount
        sudo DEBOOTSTRAP_DIR=/usr/share/debootstrap/ debootstrap \
         --arch=$vm_arch --verbose --keyring=/usr/share/keyrings/debian-archive-keyring.gpg \
         --exclude=vim-tiny \
@@ -329,27 +346,34 @@ rule_debian_install () {
         http://ftp.fr.debian.org/debian/
  }
 rule_chroot () {
-       rule_part_boot_mount
        rule_part_root_mount
+       rule_part_boot_mount
        rule_part_var_mount
        #rule_part_home_mount
        mountpoint -q /mnt/$vm_fqdn/proc ||
-       mount -t proc proc /mnt/$vm_fqdn/proc
+       sudo mount -t proc proc /mnt/$vm_fqdn/proc
        mountpoint -q /mnt/$vm_fqdn/sys ||
-       mount -t sysfs sys /mnt/$vm_fqdn/sys
+       sudo mount -t sysfs sys /mnt/$vm_fqdn/sys
        mountpoint -q /mnt/$vm_fqdn/dev ||
-       mount --bind /dev /mnt/$vm_fqdn/dev
-       sudo chroot /mnt/$vm_fqdn /bin/bash || true
+       sudo mount --bind /dev /mnt/$vm_fqdn/dev
+       mountpoint -q /mnt/$vm_fqdn/root/tool/ateliers ||
+       sudo mount --bind "$tool" /mnt/$vm_fqdn/root/tool/ateliers
+       sudo chroot /mnt/$vm_fqdn /bin/dash || true
        rule__chroot_clean
  }
 rule__chroot_clean () {
-       umount -v /mnt/$vm_fqdn/dev
-       umount -v /mnt/$vm_fqdn/sys
-       umount -v /mnt/$vm_fqdn/proc
-       #rule_part_home_umount
+       ! sudo mountpoint -q /mnt/$vm_fqdn/root/tool/ateliers ||
+       sudo umount -v /mnt/$vm_fqdn/root/tool/ateliers
+       ! mountpoint -q /mnt/$vm_fqdn/dev ||
+       sudo umount -v /mnt/$vm_fqdn/dev
+       ! mountpoint -q /mnt/$vm_fqdn/sys ||
+       sudo umount -v /mnt/$vm_fqdn/sys
+       ! mountpoint -q /mnt/$vm_fqdn/proc ||
+       sudo umount -v /mnt/$vm_fqdn/proc
+       rule_part_home_umount
        rule_part_var_umount
-       rule_part_root_umount
        rule_part_boot_umount
+       rule_part_root_umount
  }
 
 rule=${1:-help}