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
|
#
# Uncomplicated VM Builder
# Copyright (C) 2007-2009 Canonical Ltd.
#
# See AUTHORS for list of contributors
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 3, as
# published by the Free Software Foundation.
#
# 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
import glob
import logging
import os
import suite
import shutil
import socket
import tempfile
import VMBuilder
import VMBuilder.disk as disk
from VMBuilder.util import run_cmd
class Dapper(suite.Suite):
updategrub = "/sbin/update-grub"
grubroot = "/lib/grub"
valid_flavours = { 'i386' : ['386', '686', '686-smp', 'k7', 'k7-smp', 'server', 'server-bigiron'],
'amd64' : ['amd64-generic', 'amd64-k8', 'amd64-k8-smp', 'amd64-server', 'amd64-xeon']}
default_flavour = { 'i386' : 'server', 'amd64' : 'amd64-server' }
disk_prefix = 'hd'
xen_kernel_flavour = None
virtio_net = False
def pre_install():
pass
def check_kernel_flavour(self, arch, flavour):
return flavour in self.valid_flavours[arch]
def check_arch_validity(self, arch):
return arch in self.valid_flavours.keys()
def install(self, destdir):
self.destdir = destdir
logging.debug("debootstrapping")
self.debootstrap()
self.pre_install()
logging.debug("Setting up sources.list")
self.install_sources_list()
logging.debug("Setting up apt proxy")
self.install_apt_proxy()
logging.debug("Installing fstab")
self.install_fstab()
logging.debug("Creating devices")
self.create_devices()
if self.vm.hypervisor.needs_bootloader:
logging.debug("Installing grub")
self.install_grub()
logging.debug("Configuring guest networking")
self.config_network()
logging.debug("Preventing daemons from starting")
self.prevent_daemons_starting()
if self.vm.hypervisor.needs_bootloader:
logging.debug("Installing menu.list")
self.install_menu_lst()
logging.debug("Installing kernel")
self.install_kernel()
logging.debug("Creating device.map")
self.install_device_map()
logging.debug("Installing extra packages")
self.install_extras()
logging.debug("Creating initial user")
self.create_initial_user()
logging.debug("Installing ssh keys")
self.install_authorized_keys()
logging.debug("Copy host settings")
self.copy_settings()
logging.debug("Setting timezone")
self.set_timezone()
logging.debug("Making sure system is up-to-date")
self.update()
logging.debug("Setting up final sources.list")
self.install_sources_list(final=True)
logging.debug("Unmounting volatile lrm filesystems")
self.unmount_volatile()
if hasattr(self.vm, 'ec2') and self.vm.ec2:
logging.debug("Configuring for ec2")
self.install_ec2()
logging.debug("Unpreventing daemons from starting")
self.unprevent_daemons_starting()
def update(self):
self.run_in_target('apt-get', '-y', '--force-yes', 'dist-upgrade',
env={ 'DEBIAN_FRONTEND' : 'noninteractive' })
def install_authorized_keys(self):
if self.vm.ssh_key:
os.mkdir('%s/root/.ssh' % self.destdir, 0700)
shutil.copy(self.vm.ssh_key, '%s/root/.ssh/authorized_keys' % self.destdir)
os.chmod('%s/root/.ssh/authorized_keys' % self.destdir, 0644)
if self.vm.ssh_user_key:
os.mkdir('%s/home/%s/.ssh' % (self.destdir, self.vm.user), 0700)
shutil.copy(self.vm.ssh_user_key, '%s/home/%s/.ssh/authorized_keys' % (self.destdir, self.vm.user))
os.chmod('%s/home/%s/.ssh/authorized_keys' % (self.destdir, self.vm.user), 0644)
self.run_in_target('chown', '-R', '%s:%s' % (self.vm.user,)*2, '/home/%s/.ssh/' % (self.vm.user))
if self.vm.ssh_user_key or self.vm.ssh_key:
if not self.vm.addpkg:
self.vm.addpkg = []
self.vm.addpkg += ['openssh-server']
def update_passwords(self):
# Set the user password, using md5
self.run_in_target('chpasswd', '-m', stdin=('%s:%s\n' % (self.vm.user, getattr(self.vm, 'pass'))))
# Lock root account only if we didn't set the root password
if self.vm.rootpass:
self.run_in_target('chpasswd', '-m', stdin=('%s:%s\n' % ('root', self.vm.rootpass)))
else:
self.run_in_target('chpasswd', '-e', stdin='root:!\n')
if self.vm.lock_user:
logging.info('Locking %s' %(self.vm.user))
self.run_in_target('chpasswd', '-e', stdin=('%s:!\n' %(self.vm.user)))
def create_initial_user(self):
if self.vm.uid:
self.run_in_target('adduser', '--disabled-password', '--uid', self.vm.uid, '--gecos', self.vm.name, self.vm.user)
else:
self.run_in_target('adduser', '--disabled-password', '--gecos', self.vm.name, self.vm.user)
self.run_in_target('addgroup', '--system', 'admin')
self.run_in_target('adduser', self.vm.user, 'admin')
self.install_from_template('/etc/sudoers', 'sudoers')
for group in ['adm', 'audio', 'cdrom', 'dialout', 'floppy', 'video', 'plugdev', 'dip', 'netdev', 'powerdev', 'lpadmin', 'scanner']:
self.run_in_target('adduser', self.vm.user, group, ignore_fail=True)
self.update_passwords()
def kernel_name(self):
return 'linux-image-%s' % (self.vm.flavour or self.default_flavour[self.vm.arch],)
def config_network(self):
self.vm.install_file('/etc/hostname', self.vm.hostname)
self.install_from_template('/etc/hosts', 'etc_hosts', { 'hostname' : self.vm.hostname, 'domain' : self.vm.domain })
self.install_from_template('/etc/network/interfaces', 'interfaces')
def unprevent_daemons_starting(self):
os.unlink('%s/usr/sbin/policy-rc.d' % self.destdir)
def prevent_daemons_starting(self):
os.chmod(self.install_from_template('/usr/sbin/policy-rc.d', 'nostart-policy-rc.d'), 0755)
def install_extras(self):
if not self.vm.addpkg and not self.vm.removepkg:
return
cmd = ['apt-get', 'install', '-y', '--force-yes']
cmd += self.vm.addpkg or []
cmd += ['%s-' % pkg for pkg in self.vm.removepkg or []]
self.run_in_target(env={ 'DEBIAN_FRONTEND' : 'noninteractive' }, *cmd)
def unmount_volatile(self):
for mntpnt in glob.glob('%s/lib/modules/*/volatile' % self.destdir):
logging.debug("Unmounting %s" % mntpnt)
run_cmd('umount', mntpnt)
def install_menu_lst(self):
run_cmd('mount', '--bind', '/dev', '%s/dev' % self.destdir)
self.vm.add_clean_cmd('umount', '%s/dev' % self.destdir, ignore_fail=True)
self.run_in_target('mount', '-t', 'proc', 'proc', '/proc')
self.vm.add_clean_cmd('umount', '%s/proc' % self.destdir, ignore_fail=True)
self.run_in_target(self.updategrub, '-y')
self.mangle_grub_menu_lst()
self.run_in_target(self.updategrub)
self.run_in_target('grub-set-default', '0')
run_cmd('umount', '%s/dev' % self.destdir)
run_cmd('umount', '%s/proc' % self.destdir)
def mangle_grub_menu_lst(self):
bootdev = disk.bootpart(self.vm.disks)
run_cmd('sed', '-ie', 's/^# kopt=root=\([^ ]*\)\(.*\)/# kopt=root=\/dev\/hd%s%d\\2/g' % (bootdev.disk.devletters(), bootdev.get_index()+1), '%s/boot/grub/menu.lst' % self.destdir)
run_cmd('sed', '-ie', 's/^# groot.*/# groot %s/g' % bootdev.get_grub_id(), '%s/boot/grub/menu.lst' % self.destdir)
run_cmd('sed', '-ie', '/^# kopt_2_6/ d', '%s/boot/grub/menu.lst' % self.destdir)
def install_sources_list(self, final=False):
if final:
mirror, updates_mirror, security_mirror = self.vm.mirror, self.vm.mirror, self.vm.security_mirror
else:
mirror, updates_mirror, security_mirror = self.install_mirrors()
self.install_from_template('/etc/apt/sources.list', 'sources.list', { 'mirror' : mirror, 'security_mirror' : security_mirror, 'updates_mirror' : updates_mirror })
# If setting up the final mirror, allow apt-get update to fail
# (since we might be on a complete different network than the
# final vm is going to be on).
self.run_in_target('apt-get', 'update', ignore_fail=final)
def install_apt_proxy(self):
if self.vm.proxy is not None:
self.vm.install_file('/etc/apt/apt.conf', '// Proxy added by vmbuilder\nAcquire::http { Proxy "%s"; };' % self.vm.proxy)
def install_fstab(self):
if self.vm.hypervisor.preferred_storage == VMBuilder.hypervisor.STORAGE_FS_IMAGE:
self.install_from_template('/etc/fstab', 'dapper_fstab_fsimage', { 'fss' : disk.get_ordered_filesystems(self.vm), 'prefix' : self.disk_prefix })
else:
self.install_from_template('/etc/fstab', 'dapper_fstab', { 'parts' : disk.get_ordered_partitions(self.vm.disks), 'prefix' : self.disk_prefix })
def install_device_map(self):
self.install_from_template('/boot/grub/device.map', 'devicemap', { 'prefix' : self.disk_prefix })
def debootstrap(self):
cmd = ['/usr/sbin/debootstrap', '--arch=%s' % self.vm.arch]
if self.vm.variant:
cmd += ['--variant=%s' % self.vm.variant]
cmd += [self.vm.suite, self.destdir, self.debootstrap_mirror()]
kwargs = { 'env' : { 'DEBIAN_FRONTEND' : 'noninteractive' } }
if self.vm.proxy:
kwargs['env']['http_proxy'] = self.vm.proxy
run_cmd(*cmd, **kwargs)
def debootstrap_mirror(self):
if self.vm.iso:
isodir = tempfile.mkdtemp()
self.vm.add_clean_cb(lambda:os.rmdir(isodir))
run_cmd('mount', '-o', 'loop', '-t', 'iso9660', self.vm.iso, isodir)
self.vm.add_clean_cmd('umount', isodir)
self.iso_mounted = True
return 'file://%s' % isodir
else:
return self.install_mirrors()[0]
def install_mirrors(self):
if self.vm.install_mirror:
mirror = self.vm.install_mirror
else:
mirror = self.vm.mirror
if self.vm.install_mirror:
updates_mirror = self.vm.install_mirror
else:
updates_mirror = self.vm.mirror
if self.vm.install_security_mirror:
security_mirror = self.vm.install_security_mirror
else:
security_mirror = self.vm.security_mirror
return (mirror, updates_mirror, security_mirror)
def install_kernel(self):
self.install_from_template('/etc/kernel-img.conf', 'kernelimg', { 'updategrub' : self.updategrub })
run_cmd('chroot', self.destdir, 'apt-get', '--force-yes', '-y', 'install', self.kernel_name(), 'grub')
def install_grub(self):
self.run_in_target('apt-get', '--force-yes', '-y', 'install', 'grub')
run_cmd('cp', '-a', '%s%s/%s/' % (self.destdir, self.grubroot, self.vm.arch == 'amd64' and 'x86_64-pc' or 'i386-pc'), '%s/boot/grub' % self.destdir)
def create_devices(self):
import VMBuilder.plugins.xen
if isinstance(self.vm.hypervisor, VMBuilder.plugins.xen.Xen):
self.run_in_target('mknod', '/dev/xvda', 'b', '202', '0')
self.run_in_target('mknod', '/dev/xvda1', 'b', '202', '1')
self.run_in_target('mknod', '/dev/xvda2', 'b', '202', '2')
self.run_in_target('mknod', '/dev/xvda3', 'b', '202', '3')
self.run_in_target('mknod', '/dev/xvc0', 'c', '204', '191')
def install_from_template(self, *args, **kwargs):
return self.vm.distro.install_from_template(*args, **kwargs)
def run_in_target(self, *args, **kwargs):
self.vm.distro.run_in_target(*args, **kwargs)
def copy_to_target(self, infile, destpath):
logging.debug("Copying %s on host to %s in guest" % (infile, destpath))
dir = '%s/%s' % (self.destdir, os.path.dirname(destpath))
if not os.path.isdir(dir):
os.makedirs(dir)
if os.path.isdir(infile):
shutil.copytree(infile, '%s/%s' % (self.destdir, destpath))
else:
shutil.copy(infile, '%s/%s' % (self.destdir, destpath))
def post_mount(self, fs):
if fs.mntpnt == '/':
logging.debug("Creating /var/run in root filesystem")
os.makedirs('%s/var/run' % fs.mntpath)
logging.debug("Creating /var/lock in root filesystem")
os.makedirs('%s/var/lock' % fs.mntpath)
def copy_settings(self):
if os.path.exists('/etc/default/locale'):
self.copy_to_target('/etc/default/locale', '/etc/default/locale')
self.run_in_target('dpkg-reconfigure', '-fnoninteractive', '-pcritical', 'libc6')
self.run_in_target('locale-gen', 'en_US')
if self.vm.lang:
self.run_in_target('locale-gen', self.vm.lang)
self.install_from_template('/etc/default/locale', 'locale', { 'lang' : self.vm.lang })
self.run_in_target('dpkg-reconfigure', '-fnoninteractive', '-pcritical', 'locales')
self.run_in_target('dpkg-reconfigure', '-pcritical', 'locales')
def install_vmbuilder_log(self, logfile, rootdir):
shutil.copy(logfile, '%s/var/log/vmbuilder-install.log' % (rootdir,))
def set_timezone(self):
if self.vm.timezone:
os.unlink('%s/etc/localtime' % self.destdir)
shutil.copy('%s/usr/share/zoneinfo/%s' % (self.destdir, self.vm.timezone), '%s/etc/localtime' % (self.destdir,))
def install_ec2(self):
if self.vm.ec2:
logging.debug('This suite does not support ec2')
def disable_hwclock_access(self):
fp = open('%s/etc/default/rcS' % self.destdir, 'a')
fp.write('HWCLOCKACCESS=no')
fp.close()
|