aboutsummaryrefslogtreecommitdiff
path: root/share/hydractl/provision
blob: 89b7bc5747b4a35a9a27fbb0ccf0286e38f9df95 (plain)
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
#!/bin/bash
#
# System installer.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# This program 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public
# License along with this program.  If not, see
# <http://www.gnu.org/licenses/>.

# Load.
source $APP_BASE/lib/hydra/functions || exit 1
hydra_config_load

# Create a logical volume.
function hydra_provision_lvcreate {
  local volume="$1"
  local size="$2"
  local space

  if [ -z "$volume" ] || [ "$size" == "0" ]; then
    return
  fi

  if ! lvdisplay $vg/$volume &> /dev/null; then
    echo "Creating logical volume $volume..."
    if [ "$size" == "-1" ]; then
      space="-l 100%FREE"
    else
      space="-L $size"
    fi

    # See http://forums.funtoo.org/viewtopic.php?id=1206
    #     https://bbs.archlinux.org/viewtopic.php?id=124615
    if [ "$disable_zeroing" == "y" ]; then
      hydra_safe_run lvcreate -Z n $space -n $volume $vg
    else
      hydra_safe_run lvcreate $space -n $volume $vg
    fi
  fi
}

# Cryptsetup wrapper.
function hydra_cryptsetup {
  if [ ! -z "$1" ] && [ -b "$1" ]; then
    hydra_safe_run cryptsetup --cipher aes-xts-plain64:sha256 --key-size 512 --hash sha512 --iter-time 5000 --use-random luksFormat $1
  fi
}

# Create a physical volume.
function hydra_provision_create_volume {
  local volume="$1"

  if [ -z "$volume" ] || [ ! -b "/dev/mapper/$vg-$volume" ]; then
    return
  fi

  if [ "$encrypt" == "y" ]; then
    echo "Creating encrypted $volume device..."
    hydra_cryptsetup /dev/mapper/$vg-$volume
    hydra_safe_run cryptsetup luksOpen /dev/mapper/$vg-$volume provision-$volume
    hydra_safe_run mkfs.ext4 /dev/mapper/provision-$volume

    if [ "$volume" == "root" ]; then
      install_device="/dev/mapper/provision-root"
    fi
  else
    echo "Creating $volume device..."
    mkfs.ext4 /dev/mapper/$vg-$volume

    if [ "$volume" == "root" ]; then
      install_device="/dev/mapper/$vg-root"
    fi
  fi
}

# Make sure there is provision config.
function hydra_provision_config {
  local base_arch="`uname -m`"

  if [ "$base_arch" == "x86_64" ]; then
    base_arch="amd64"
  else
    base_arch="i386"
  fi

  hydra_user_config   interactive       y                                "Interactive mode? (y/n)"
  hydra_user_config   device            /dev/sdb                         "Destination device"
  hydra_user_config   root_size         20G                              "Size of root partition"
  hydra_user_config   swap_size         2000                             "Swap size (in MB, 0 to not create it)"
  hydra_user_config   home_size         20G                              "Size of home partition (0 to not create it, -1 for all free space)"
  hydra_user_config   var_size          20G                              "Size of var partition  (0 to not create it, -1 for all free space)"
  hydra_user_config   encrypt           y                                "Encrypt volumes? (y/n)"
  hydra_user_config   garbage           y                                "Pre-fill volumes with garbage? (y/n)"
  hydra_user_config   random_swap       y                                "Random swap? (y/n)"
  hydra_user_config   disable_zeroing   n                                "Disable zeroing of lvm volumes? (y/n)"
  hydra_user_config   hostname          machine                          "Hostname"
  hydra_user_config   domain            example.org                      "Domain"
  hydra_user_config   arch              $base_arch                       "System arch"
  hydra_user_config   version           wheezy                           "Distro version"
  hydra_user_config   vg                $hostname                        "Install vg"
  hydra_user_config   grub              y                                "Setup GRUB? (y/n)"
  hydra_user_config   mirror            http://http.debian.net/debian/   "Debian mirror"
}

# Setup.
if [ ! -z "$1" ]; then
  if [ -f "$1" ]; then
    echo "Using configuration from file $1..."
    source "$1"
  else
    echo "File not found: $1"
    exit 1
  fi
fi

# Get config parameters.
hydra_provision_config

# Check for requirements.
for req in debootstrap cryptsetup grub-pc lvm2 parted mdadm; do
  hydra_install_package $req
done

# Warning.
if [ "$interactive" == "y" ]; then
  echo "WARNING: about to create partitions on $device!"
  echo "WARNING: make sure you have backups of the important data from this device!"
  echo "Press ENTER to continue, Ctrl-C to abort."
  read answer
fi

# Disk partitioning.
hydra_safe_run parted -s -- $device mklabel gpt
hydra_safe_run parted -s -- $device unit MB mkpart non-fs 2    3
hydra_safe_run parted -s -- $device unit MB mkpart ext2   3    200
hydra_safe_run parted -s -- $device unit MB mkpart ext2   200  -1
hydra_safe_run parted -s -- $device set 1 bios_grub on
hydra_safe_run parted -s -- $device set 2 boot on
hydra_safe_run parted -s -- $device set 3 lvm  on

# Use absolute paths for devices.
boot_device="$device"2
syst_device="$device"3

# Create volumes.
echo "Creating the needed disk volumes..."

if ! pvdisplay $syst_device &> /dev/null; then
  echo "Creating physical volume..."
  hydra_safe_run pvcreate $syst_device
fi

if ! vgdisplay $vg &> /dev/null; then
  echo "Creating volume group..."
  hydra_safe_run vgcreate $vg $syst_device
fi

# Create root partition.
hydra_safe_run vgchange -a y $vg
hydra_provision_lvcreate root $root_size

# Create swap partition
if [ "$swap" != "0" ]; then
  hydra_provision_lvcreate swap $swap_size
fi

# Create home partition.
if [ "$home_size" != "0" ]; then
  hydra_provision_lvcreate home $home_size
fi

# Create var partition.
if [ "$var_size" != "0" ]; then
  hydra_provision_lvcreate var  $var_size
fi

# Garbage.
if [ "$garbage" == "y" ]; then
  echo "Filling volumes with garbage..."

  dd if=/dev/urandom of=/dev/mapper/$vg-root

  if [ -b "/dev/mapper/$vg-home" ]; then
    dd if=/dev/urandom of=/dev/mapper/$vg-home
  fi

  if [ -b "/dev/mapper/$vg-var" ]; then
    dd if=/dev/urandom of=/dev/mapper/$vg-var
  fi

  if [ "$swap" != "0" ]; then
    dd if=/dev/urandom of=/dev/mapper/$vg-swap
  fi
fi

# Setup mountpoint and make sure it's not mounted due to a failed install.
mkdir -p /tmp/debootstrap
umount /tmp/debootstrap &> /dev/null
for folder in proc dev home var boot sys; do
  umount /tmp/debootstrap/$folder &> /dev/null
done

# Create swap fs.
if [ "$swap" != "0" ] && [ "$random_swap" != "y" ]; then
  hydra_cryptsetup                   /dev/mapper/$vg-swap
  hydra_safe_run cryptsetup luksOpen /dev/mapper/$vg-swap provision-swap
  hydra_safe_run mkswap              /dev/mapper/provision-swap
fi

# Create root fs
hydra_provision_create_volume root

# Create home fs.
if [ "$home_size" != "0" ]; then
  hydra_provision_create_volume home
fi

# Create var fs.
if [ "$var_size" != "0" ]; then
  hydra_provision_create_volume var
fi

# Mount root volume.
hydra_safe_run mount $install_device /tmp/debootstrap/

# Mount additional volumes.
if [ "$home_size" != "0" ]; then
  mkdir /tmp/debootstrap/home

  if [ "$encrypt" == "y" ]; then
    hydra_safe_run mount /dev/mapper/provision-home /tmp/debootstrap/home
  else
    hydra_safe_run mount /dev/mapper/$vg-home /tmp/debootstrap/home
  fi
fi

if [ "$var_size" != "0" ]; then
  mkdir /tmp/debootstrap/var

  if [ "$encrypt" == "y" ]; then
    hydra_safe_run mount /dev/mapper/provision-var /tmp/debootstrap/var
  else
    hydra_safe_run mount /dev/mapper/$vg-var /tmp/debootstrap/var
  fi
fi

# Initial system install.
echo "Installing base system..."
hydra_safe_run debootstrap --arch=$arch $version /tmp/debootstrap/ $mirror

# Initial configuration.
echo "Applying initial configuration..."
mount none -t proc /tmp/debootstrap/proc
mount none -t sysfs /tmp/debootstrap/sys
mount -o bind /dev/ /tmp/debootstrap/dev
echo LANG=C > /tmp/debootstrap/etc/default/locale

# Resolver configuration.
echo "domain $domain" > /tmp/debootstrap/etc/resolv.conf
echo "search $hostname.$domain" >> /tmp/debootstrap/etc/resolv.conf
grep nameserver /etc/resolv.conf >> /tmp/debootstrap/etc/resolv.conf

# Hostname configuration.
echo $hostname.$domain > /tmp/debootstrap/etc/hostname
echo "127.0.0.1 localhost" >> /tmp/debootstrap/etc/hosts
echo "127.0.0.1 $hostname $hostname.$domain" >> /tmp/debootstrap/etc/hosts

# Invert hostname contents to avoid http://projects.puppetlabs.com/issues/2533
tac /tmp/debootstrap/etc/hosts > /tmp/debootstrap/etc/hosts.new
mv /tmp/debootstrap/etc/hosts.new /tmp/debootstrap/etc/hosts

# Initial upgrade.
echo "Applying initial upgrades..."
chroot /tmp/debootstrap/ apt-get update
chroot /tmp/debootstrap/ apt-get upgrade -y
chroot /tmp/debootstrap/ apt-get install locales cryptsetup lvm2 initramfs-tools -y

# Crypttab.
echo "Configuring crypttab..."
echo "# <target name> <source device>   <key file>  <options>" > /tmp/debootstrap/etc/crypttab

if [ "$encrypt" == "y" ]; then
  cat > /tmp/debootstrap/etc/crypttab <<-EOF
root            /dev/mapper/$vg-root      none            luks
EOF
fi

if [ "$home_size" != "0" ] && [ "$encrypt" == "y" ]; then
  cat >> /tmp/debootstrap/etc/crypttab <<-EOF
home            /dev/mapper/$vg-home      none            luks
EOF
fi

if [ "$var_size" != "0" ] && [ "$encrypt" == "y" ]; then
  cat >> /tmp/debootstrap/etc/crypttab <<-EOF
var             /dev/mapper/$vg-var       none            luks
EOF
fi

if [ "$swap" != "0" ] && [ "$random_swap" == "y" ]; then
  cat >> /tmp/debootstrap/etc/crypttab <<-EOF
swap            /dev/mapper/$vg-swap      /dev/random     swap,cipher=aes-xts-plain64:sha256
EOF
fi

if [ "$swap" != "0" ] && [ "$random_swap" != "y" ]; then
  cat >> /tmp/debootstrap/etc/crypttab <<-EOF
swap            /dev/mapper/$vg-swap      none        luks,swap
EOF
fi

# Fstab.
echo "Configuring fstab..."
echo "" > /tmp/debootstrap/etc/fstab
if [ "$swap" != "0" ]; then
  cat >> /tmp/debootstrap/etc/fstab <<-EOF
/dev/mapper/swap      none           swap  sw                                 0 0
EOF
fi

if [ "$encrypt" == "y" ]; then
  cat >> /tmp/debootstrap/etc/fstab <<-EOF
/dev/mapper/root      /              ext4  defaults,errors=remount-ro         0 1
EOF
else
  cat >> /tmp/debootstrap/etc/fstab <<-EOF
/dev/mapper/$vg-root   /              ext4  defaults,errors=remount-ro         0 1
EOF
fi

if [ "$home_size" != "0" ]; then
  if [ "$encrypt" == "y" ]; then
  cat >> /tmp/debootstrap/etc/fstab <<-EOF
/dev/mapper/home      /home          ext4  defaults,errors=remount-ro         0 2
EOF
  else
  cat >> /tmp/debootstrap/etc/fstab <<-EOF
/dev/mapper/$vg-home   /home          ext4  defaults,errors=remount-ro         0 2
EOF
  fi
fi

if [ "$var_size" != "0" ]; then
  if [ "$encrypt" == "y" ]; then
  cat >> /tmp/debootstrap/etc/fstab <<-EOF
/dev/mapper/var       /var           ext4  defaults,errors=remount-ro         0 2
EOF
  else
  cat >> /tmp/debootstrap/etc/fstab <<-EOF
/dev/mapper/$vg-var    /var           ext4  defaults,errors=remount-ro         0 2
EOF
  fi
fi

# Grub.
if [ "$grub" == "y" ]; then
  echo "Boot device setup..."
  hydra_safe_run mkfs.ext4 $boot_device
  hydra_safe_run mount $boot_device /tmp/debootstrap/boot
  echo "$boot_device /boot ext4 defaults,errors=remount-ro 0 2" >> /tmp/debootstrap/etc/fstab

  echo "Setting up GRUB..."
  hydra_safe_run chroot /tmp/debootstrap/ apt-get install grub-pc -y
fi

# Kernel.
echo "Installing kernel..."
cat > /tmp/debootstrap/etc/initramfs-tools/modules <<-EOF
dm-mod
dm-crypt
aes
twofish
sha256
EOF

cat > /tmp/debootstrap/etc/kernel-img.conf <<-EOF
do_initrd = Yes
EOF

if [ "$arch" == "i386" ]; then
  kernel_arch="686"
else
  kernel_arch="$arch"
fi

if [ "$version" == "squeeze" ]; then
  hydra_safe_run chroot /tmp/debootstrap apt-get install linux-image-2.6-vserver-$kernel_arch -y
else
  hydra_safe_run chroot /tmp/debootstrap apt-get install linux-image-$kernel_arch -y
fi

# Initramfs.
echo "Creating initramfs..."
hydra_safe_run chroot /tmp/debootstrap update-initramfs -v -u

# Utils.
echo "Installing basic utilities..."
chroot /tmp/debootstrap apt-get install screen cron lsb-release openssl -y

# Ssh.
echo "Installing OpenSSH daemon..."
chroot /tmp/debootstrap apt-get install openssh-server -y

echo "OpenSSH fingerprints:"
chroot /tmp/debootstrap ssh-keygen -l -f /etc/ssh/ssh_host_dsa_key.pub
chroot /tmp/debootstrap ssh-keygen -l -f /etc/ssh/ssh_host_rsa_key.pub

# Accounts.
echo "Installing sudo..."
chroot /tmp/debootstrap apt-get install sudo -y

echo "Choose a root password."
chroot /tmp/debootstrap passwd root

cat <<-EOF

Now proceeed with final steps:

  - Create an user account with sudo privileges.
  - Network setup.
  - Review fstab, crypttab and optional GRUB configuration.
  - Rename volume group $vg if needed, updating fstab and crypttab accordingly.

See http://padrao.sarava.org/install for more information.
EOF