| OLD | NEW |
|---|
| 1 """ | 1 """ |
| 2 Library to perform pre/post test setup for KVM autotest. | 2 Library to perform pre/post test setup for KVM autotest. |
| 3 """ | 3 """ |
| 4 import os, shutil, tempfile, re, ConfigParser, glob, inspect | 4 import os, logging |
| 5 import logging, time | |
| 6 from autotest_lib.client.common_lib import error | 5 from autotest_lib.client.common_lib import error |
| 7 from autotest_lib.client.bin import utils | 6 from autotest_lib.client.bin import utils |
| 8 | 7 |
| 9 | 8 |
| 10 @error.context_aware | |
| 11 def cleanup(dir): | |
| 12 """ | |
| 13 If dir is a mountpoint, do what is possible to unmount it. Afterwards, | |
| 14 try to remove it. | |
| 15 | |
| 16 @param dir: Directory to be cleaned up. | |
| 17 """ | |
| 18 error.context("cleaning up unattended install directory %s" % dir) | |
| 19 if os.path.ismount(dir): | |
| 20 utils.run('fuser -k %s' % dir, ignore_status=True) | |
| 21 utils.run('umount %s' % dir) | |
| 22 if os.path.isdir(dir): | |
| 23 shutil.rmtree(dir) | |
| 24 | |
| 25 | |
| 26 @error.context_aware | |
| 27 def clean_old_image(image): | |
| 28 """ | |
| 29 Clean a leftover image file from previous processes. If it contains a | |
| 30 mounted file system, do the proper cleanup procedures. | |
| 31 | |
| 32 @param image: Path to image to be cleaned up. | |
| 33 """ | |
| 34 error.context("cleaning up old leftover image %s" % image) | |
| 35 if os.path.exists(image): | |
| 36 mtab = open('/etc/mtab', 'r') | |
| 37 mtab_contents = mtab.read() | |
| 38 mtab.close() | |
| 39 if image in mtab_contents: | |
| 40 utils.run('fuser -k %s' % image, ignore_status=True) | |
| 41 utils.run('umount %s' % image) | |
| 42 os.remove(image) | |
| 43 | |
| 44 | |
| 45 def display_attributes(instance): | |
| 46 """ | |
| 47 Inspects a given class instance attributes and displays them, convenient | |
| 48 for debugging. | |
| 49 """ | |
| 50 logging.debug("Attributes set:") | |
| 51 for member in inspect.getmembers(instance): | |
| 52 name, value = member | |
| 53 attribute = getattr(instance, name) | |
| 54 if not (name.startswith("__") or callable(attribute) or not value): | |
| 55 logging.debug(" %s: %s", name, value) | |
| 56 | |
| 57 | |
| 58 class Disk(object): | |
| 59 """ | |
| 60 Abstract class for Disk objects, with the common methods implemented. | |
| 61 """ | |
| 62 def __init__(self): | |
| 63 self.path = None | |
| 64 | |
| 65 | |
| 66 def setup_answer_file(self, filename, contents): | |
| 67 utils.open_write_close(os.path.join(self.mount, filename), contents) | |
| 68 | |
| 69 | |
| 70 def copy_to(self, src): | |
| 71 logging.debug("Copying %s to disk image mount", src) | |
| 72 dst = os.path.join(self.mount, os.path.basename(src)) | |
| 73 if os.path.isdir(src): | |
| 74 shutil.copytree(src, dst) | |
| 75 elif os.path.isfile(src): | |
| 76 shutil.copyfile(src, dst) | |
| 77 | |
| 78 | |
| 79 def close(self): | |
| 80 os.chmod(self.path, 0755) | |
| 81 cleanup(self.mount) | |
| 82 logging.debug("Disk %s successfuly set", self.path) | |
| 83 | |
| 84 | |
| 85 class FloppyDisk(Disk): | |
| 86 """ | |
| 87 Represents a 1.44 MB floppy disk. We can copy files to it, and setup it in | |
| 88 convenient ways. | |
| 89 """ | |
| 90 @error.context_aware | |
| 91 def __init__(self, path, qemu_img_binary, tmpdir): | |
| 92 error.context("Creating unattended install floppy image %s" % path) | |
| 93 self.tmpdir = tmpdir | |
| 94 self.mount = tempfile.mkdtemp(prefix='floppy_', dir=self.tmpdir) | |
| 95 self.virtio_mount = None | |
| 96 self.path = path | |
| 97 clean_old_image(path) | |
| 98 if not os.path.isdir(os.path.dirname(path)): | |
| 99 os.makedirs(os.path.dirname(path)) | |
| 100 | |
| 101 try: | |
| 102 c_cmd = '%s create -f raw %s 1440k' % (qemu_img_binary, path) | |
| 103 utils.run(c_cmd) | |
| 104 f_cmd = 'mkfs.msdos -s 1 %s' % path | |
| 105 utils.run(f_cmd) | |
| 106 m_cmd = 'mount -o loop,rw %s %s' % (path, self.mount) | |
| 107 utils.run(m_cmd) | |
| 108 except error.CmdError, e: | |
| 109 cleanup(self.mount) | |
| 110 raise | |
| 111 | |
| 112 | |
| 113 def _copy_virtio_drivers(self, virtio_floppy): | |
| 114 """ | |
| 115 Copy the virtio drivers on the virtio floppy to the install floppy. | |
| 116 | |
| 117 1) Mount the floppy containing the viostor drivers | |
| 118 2) Copy its contents to the root of the install floppy | |
| 119 """ | |
| 120 virtio_mount = tempfile.mkdtemp(prefix='virtio_floppy_', | |
| 121 dir=self.tmpdir) | |
| 122 | |
| 123 pwd = os.getcwd() | |
| 124 try: | |
| 125 m_cmd = 'mount -o loop %s %s' % (virtio_floppy, virtio_mount) | |
| 126 utils.run(m_cmd) | |
| 127 os.chdir(virtio_mount) | |
| 128 path_list = glob.glob('*') | |
| 129 for path in path_list: | |
| 130 self.copy_to(path) | |
| 131 finally: | |
| 132 os.chdir(pwd) | |
| 133 cleanup(virtio_mount) | |
| 134 | |
| 135 | |
| 136 def setup_virtio_win2003(self, virtio_floppy, virtio_oemsetup_id): | |
| 137 """ | |
| 138 Setup the install floppy with the virtio storage drivers, win2003 style. | |
| 139 | |
| 140 Win2003 and WinXP depend on the file txtsetup.oem file to install | |
| 141 the virtio drivers from the floppy, which is a .ini file. | |
| 142 Process: | |
| 143 | |
| 144 1) Copy the virtio drivers on the virtio floppy to the install floppy | |
| 145 2) Parse the ini file with config parser | |
| 146 3) Modify the identifier of the default session that is going to be | |
| 147 executed on the config parser object | |
| 148 4) Re-write the config file to the disk | |
| 149 """ | |
| 150 self._copy_virtio_drivers(virtio_floppy) | |
| 151 txtsetup_oem = os.path.join(self.mount, 'txtsetup.oem') | |
| 152 if not os.path.isfile(txtsetup_oem): | |
| 153 raise IOError('File txtsetup.oem not found on the install ' | |
| 154 'floppy. Please verify if your floppy virtio ' | |
| 155 'driver image has this file') | |
| 156 parser = ConfigParser.ConfigParser() | |
| 157 parser.read(txtsetup_oem) | |
| 158 if not parser.has_section('Defaults'): | |
| 159 raise ValueError('File txtsetup.oem does not have the session ' | |
| 160 '"Defaults". Please check txtsetup.oem') | |
| 161 default_driver = parser.get('Defaults', 'SCSI') | |
| 162 if default_driver != virtio_oemsetup_id: | |
| 163 parser.set('Defaults', 'SCSI', virtio_oemsetup_id) | |
| 164 fp = open(txtsetup_oem, 'w') | |
| 165 parser.write(fp) | |
| 166 fp.close() | |
| 167 | |
| 168 | |
| 169 def setup_virtio_win2008(self, virtio_floppy): | |
| 170 """ | |
| 171 Setup the install floppy with the virtio storage drivers, win2008 style. | |
| 172 | |
| 173 Win2008, Vista and 7 require people to point out the path to the drivers | |
| 174 on the unattended file, so we just need to copy the drivers to the | |
| 175 driver floppy disk. | |
| 176 Process: | |
| 177 | |
| 178 1) Copy the virtio drivers on the virtio floppy to the install floppy | |
| 179 """ | |
| 180 self._copy_virtio_drivers(virtio_floppy) | |
| 181 | |
| 182 | |
| 183 class CdromDisk(Disk): | |
| 184 """ | |
| 185 Represents a CDROM disk that we can master according to our needs. | |
| 186 """ | |
| 187 def __init__(self, path, tmpdir): | |
| 188 self.mount = tempfile.mkdtemp(prefix='cdrom_unattended_', dir=tmpdir) | |
| 189 self.path = path | |
| 190 clean_old_image(path) | |
| 191 if not os.path.isdir(os.path.dirname(path)): | |
| 192 os.makedirs(os.path.dirname(path)) | |
| 193 | |
| 194 | |
| 195 @error.context_aware | |
| 196 def close(self): | |
| 197 error.context("Creating unattended install CD image %s" % self.path) | |
| 198 g_cmd = ('mkisofs -o %s -max-iso9660-filenames ' | |
| 199 '-relaxed-filenames -D --input-charset iso8859-1 ' | |
| 200 '%s' % (self.path, self.mount)) | |
| 201 utils.run(g_cmd) | |
| 202 | |
| 203 os.chmod(self.path, 0755) | |
| 204 cleanup(self.mount) | |
| 205 logging.debug("unattended install CD image %s successfuly created", | |
| 206 self.path) | |
| 207 | |
| 208 | |
| 209 class UnattendedInstallConfig(object): | |
| 210 """ | |
| 211 Creates a floppy disk image that will contain a config file for unattended | |
| 212 OS install. The parameters to the script are retrieved from environment | |
| 213 variables. | |
| 214 """ | |
| 215 def __init__(self, test, params): | |
| 216 """ | |
| 217 Sets class atributes from test parameters. | |
| 218 | |
| 219 @param test: KVM test object. | |
| 220 @param params: Dictionary with test parameters. | |
| 221 """ | |
| 222 root_dir = test.bindir | |
| 223 images_dir = os.path.join(root_dir, 'images') | |
| 224 self.deps_dir = os.path.join(root_dir, 'deps') | |
| 225 self.unattended_dir = os.path.join(root_dir, 'unattended') | |
| 226 | |
| 227 attributes = ['kernel_args', 'finish_program', 'cdrom_cd1', | |
| 228 'unattended_file', 'medium', 'url', 'kernel', 'initrd', | |
| 229 'nfs_server', 'nfs_dir', 'install_virtio', 'floppy', | |
| 230 'cdrom_unattended', 'boot_path', 'extra_params', | |
| 231 'qemu_img_binary', 'cdkey', 'finish_program'] | |
| 232 | |
| 233 for a in attributes: | |
| 234 setattr(self, a, params.get(a, '')) | |
| 235 | |
| 236 if self.install_virtio == 'yes': | |
| 237 v_attributes = ['virtio_floppy', 'virtio_storage_path', | |
| 238 'virtio_network_path', 'virtio_oemsetup_id', | |
| 239 'virtio_network_installer'] | |
| 240 for va in v_attributes: | |
| 241 setattr(self, va, params.get(va, '')) | |
| 242 | |
| 243 self.tmpdir = test.tmpdir | |
| 244 | |
| 245 if getattr(self, 'unattended_file'): | |
| 246 self.unattended_file = os.path.join(root_dir, self.unattended_file) | |
| 247 | |
| 248 if getattr(self, 'finish_program'): | |
| 249 self.finish_program = os.path.join(root_dir, self.finish_program) | |
| 250 | |
| 251 if getattr(self, 'qemu_img_binary'): | |
| 252 if not os.path.isfile(getattr(self, 'qemu_img_binary')): | |
| 253 self.qemu_img_binary = os.path.join(root_dir, | |
| 254 self.qemu_img_binary) | |
| 255 | |
| 256 if getattr(self, 'cdrom_cd1'): | |
| 257 self.cdrom_cd1 = os.path.join(root_dir, self.cdrom_cd1) | |
| 258 self.cdrom_cd1_mount = tempfile.mkdtemp(prefix='cdrom_cd1_', | |
| 259 dir=self.tmpdir) | |
| 260 if self.medium == 'nfs': | |
| 261 self.nfs_mount = tempfile.mkdtemp(prefix='nfs_', | |
| 262 dir=self.tmpdir) | |
| 263 | |
| 264 if getattr(self, 'floppy'): | |
| 265 self.floppy = os.path.join(root_dir, self.floppy) | |
| 266 if not os.path.isdir(os.path.dirname(self.floppy)): | |
| 267 os.makedirs(os.path.dirname(self.floppy)) | |
| 268 | |
| 269 self.image_path = os.path.dirname(self.kernel) | |
| 270 | |
| 271 | |
| 272 @error.context_aware | |
| 273 def render_answer_file(self): | |
| 274 """ | |
| 275 Replace KVM_TEST_CDKEY (in the unattended file) with the cdkey | |
| 276 provided for this test and replace the KVM_TEST_MEDIUM with | |
| 277 the tree url or nfs address provided for this test. | |
| 278 | |
| 279 @return: Answer file contents | |
| 280 """ | |
| 281 error.base_context('Rendering final answer file') | |
| 282 error.context('Reading answer file %s' % self.unattended_file) | |
| 283 unattended_contents = open(self.unattended_file).read() | |
| 284 dummy_cdkey_re = r'\bKVM_TEST_CDKEY\b' | |
| 285 if re.search(dummy_cdkey_re, unattended_contents): | |
| 286 if self.cdkey: | |
| 287 unattended_contents = re.sub(dummy_cdkey_re, self.cdkey, | |
| 288 unattended_contents) | |
| 289 else: | |
| 290 print ("WARNING: 'cdkey' required but not specified for " | |
| 291 "this unattended installation") | |
| 292 | |
| 293 dummy_medium_re = r'\bKVM_TEST_MEDIUM\b' | |
| 294 if self.medium == "cdrom": | |
| 295 content = "cdrom" | |
| 296 elif self.medium == "url": | |
| 297 content = "url --url %s" % self.url | |
| 298 elif self.medium == "nfs": | |
| 299 content = "nfs --server=%s --dir=%s" % (self.nfs_server, | |
| 300 self.nfs_dir) | |
| 301 else: | |
| 302 raise ValueError("Unexpected installation medium %s" % self.url) | |
| 303 | |
| 304 unattended_contents = re.sub(dummy_medium_re, content, | |
| 305 unattended_contents) | |
| 306 | |
| 307 def replace_virtio_key(contents, dummy_re, attribute_name): | |
| 308 """ | |
| 309 Replace a virtio dummy string with contents. | |
| 310 | |
| 311 If install_virtio is not set, replace it with a dummy string. | |
| 312 | |
| 313 @param contents: Contents of the unattended file | |
| 314 @param dummy_re: Regular expression used to search on the. | |
| 315 unattended file contents. | |
| 316 @param env: Name of the environment variable. | |
| 317 """ | |
| 318 dummy_path = "C:" | |
| 319 driver = getattr(self, attribute_name, '') | |
| 320 | |
| 321 if re.search(dummy_re, contents): | |
| 322 if self.install_virtio == "yes": | |
| 323 if driver.endswith("msi"): | |
| 324 driver = 'msiexec /passive /package ' + driver | |
| 325 else: | |
| 326 try: | |
| 327 # Let's escape windows style paths properly | |
| 328 drive, path = driver.split(":") | |
| 329 driver = drive + ":" + re.escape(path) | |
| 330 except: | |
| 331 pass | |
| 332 contents = re.sub(dummy_re, driver, contents) | |
| 333 else: | |
| 334 contents = re.sub(dummy_re, dummy_path, contents) | |
| 335 return contents | |
| 336 | |
| 337 vdict = {r'\bKVM_TEST_STORAGE_DRIVER_PATH\b': | |
| 338 'virtio_storage_path', | |
| 339 r'\bKVM_TEST_NETWORK_DRIVER_PATH\b': | |
| 340 'virtio_network_path', | |
| 341 r'\bKVM_TEST_VIRTIO_NETWORK_INSTALLER\b': | |
| 342 'virtio_network_installer_path'} | |
| 343 | |
| 344 for vkey in vdict: | |
| 345 unattended_contents = replace_virtio_key( | |
| 346 contents=unattended_contents, | |
| 347 dummy_re=vkey, | |
| 348 attribute_name=vdict[vkey]) | |
| 349 | |
| 350 logging.debug("Unattended install contents:") | |
| 351 for line in unattended_contents.splitlines(): | |
| 352 logging.debug(line) | |
| 353 return unattended_contents | |
| 354 | |
| 355 | |
| 356 def setup_boot_disk(self): | |
| 357 answer_contents = self.render_answer_file() | |
| 358 | |
| 359 if self.unattended_file.endswith('.sif'): | |
| 360 dest_fname = 'winnt.sif' | |
| 361 setup_file = 'winnt.bat' | |
| 362 boot_disk = FloppyDisk(self.floppy, self.qemu_img_binary, | |
| 363 self.tmpdir) | |
| 364 boot_disk.setup_answer_file(dest_fname, answer_contents) | |
| 365 setup_file_path = os.path.join(self.unattended_dir, setup_file) | |
| 366 boot_disk.copy_to(setup_file_path) | |
| 367 if self.install_virtio == "yes": | |
| 368 boot_disk.setup_virtio_win2003(self.virtio_floppy, | |
| 369 self.virtio_oemsetup_id) | |
| 370 boot_disk.copy_to(self.finish_program) | |
| 371 | |
| 372 elif self.unattended_file.endswith('.ks'): | |
| 373 # Red Hat kickstart install | |
| 374 dest_fname = 'ks.cfg' | |
| 375 if self.cdrom_unattended: | |
| 376 boot_disk = CdromDisk(self.cdrom_unattended, self.tmpdir) | |
| 377 elif self.floppy: | |
| 378 boot_disk = FloppyDisk(self.floppy, self.qemu_img_binary, | |
| 379 self.tmpdir) | |
| 380 else: | |
| 381 raise ValueError("Neither cdrom_unattended nor floppy set " | |
| 382 "on the config file, please verify") | |
| 383 boot_disk.setup_answer_file(dest_fname, answer_contents) | |
| 384 | |
| 385 elif self.unattended_file.endswith('.xml'): | |
| 386 if "autoyast" in self.extra_params: | |
| 387 # SUSE autoyast install | |
| 388 dest_fname = "autoinst.xml" | |
| 389 if self.cdrom_unattended: | |
| 390 boot_disk = CdromDisk(self.cdrom_unattended) | |
| 391 elif self.floppy: | |
| 392 boot_disk = FloppyDisk(self.floppy, self.qemu_img_binary, | |
| 393 self.tmpdir) | |
| 394 else: | |
| 395 raise ValueError("Neither cdrom_unattended nor floppy set " | |
| 396 "on the config file, please verify") | |
| 397 boot_disk.setup_answer_file(dest_fname, answer_contents) | |
| 398 | |
| 399 else: | |
| 400 # Windows unattended install | |
| 401 dest_fname = "autounattend.xml" | |
| 402 boot_disk = FloppyDisk(self.floppy, self.qemu_img_binary, | |
| 403 self.tmpdir) | |
| 404 boot_disk.setup_answer_file(dest_fname, answer_contents) | |
| 405 if self.install_virtio == "yes": | |
| 406 boot_disk.setup_virtio_win2008(self.virtio_floppy) | |
| 407 boot_disk.copy_to(self.finish_program) | |
| 408 | |
| 409 else: | |
| 410 raise ValueError('Unknown answer file type: %s' % | |
| 411 self.unattended_file) | |
| 412 | |
| 413 boot_disk.close() | |
| 414 | |
| 415 | |
| 416 @error.context_aware | |
| 417 def setup_cdrom(self): | |
| 418 """ | |
| 419 Mount cdrom and copy vmlinuz and initrd.img. | |
| 420 """ | |
| 421 error.context("Copying vmlinuz and initrd.img from install cdrom %s" % | |
| 422 self.cdrom_cd1) | |
| 423 m_cmd = ('mount -t iso9660 -v -o loop,ro %s %s' % | |
| 424 (self.cdrom_cd1, self.cdrom_cd1_mount)) | |
| 425 utils.run(m_cmd) | |
| 426 | |
| 427 try: | |
| 428 if not os.path.isdir(self.image_path): | |
| 429 os.makedirs(self.image_path) | |
| 430 kernel_fetch_cmd = ("cp %s/%s/%s %s" % | |
| 431 (self.cdrom_cd1_mount, self.boot_path, | |
| 432 os.path.basename(self.kernel), self.kernel)) | |
| 433 utils.run(kernel_fetch_cmd) | |
| 434 initrd_fetch_cmd = ("cp %s/%s/%s %s" % | |
| 435 (self.cdrom_cd1_mount, self.boot_path, | |
| 436 os.path.basename(self.initrd), self.initrd)) | |
| 437 utils.run(initrd_fetch_cmd) | |
| 438 finally: | |
| 439 cleanup(self.cdrom_cd1_mount) | |
| 440 | |
| 441 | |
| 442 @error.context_aware | |
| 443 def setup_url(self): | |
| 444 """ | |
| 445 Download the vmlinuz and initrd.img from URL. | |
| 446 """ | |
| 447 error.context("downloading vmlinuz and initrd.img from %s" % self.url) | |
| 448 os.chdir(self.image_path) | |
| 449 kernel_fetch_cmd = "wget -q %s/%s/%s" % (self.url, self.boot_path, | |
| 450 os.path.basename(self.kernel)) | |
| 451 initrd_fetch_cmd = "wget -q %s/%s/%s" % (self.url, self.boot_path, | |
| 452 os.path.basename(self.initrd)) | |
| 453 | |
| 454 if os.path.exists(self.kernel): | |
| 455 os.remove(self.kernel) | |
| 456 if os.path.exists(self.initrd): | |
| 457 os.remove(self.initrd) | |
| 458 | |
| 459 utils.run(kernel_fetch_cmd) | |
| 460 utils.run(initrd_fetch_cmd) | |
| 461 | |
| 462 | |
| 463 def setup_nfs(self): | |
| 464 """ | |
| 465 Copy the vmlinuz and initrd.img from nfs. | |
| 466 """ | |
| 467 error.context("copying the vmlinuz and initrd.img from NFS share") | |
| 468 | |
| 469 m_cmd = ("mount %s:%s %s -o ro" % | |
| 470 (self.nfs_server, self.nfs_dir, self.nfs_mount)) | |
| 471 utils.run(m_cmd) | |
| 472 | |
| 473 try: | |
| 474 kernel_fetch_cmd = ("cp %s/%s/%s %s" % | |
| 475 (self.nfs_mount, self.boot_path, | |
| 476 os.path.basename(self.kernel), self.image_path)) | |
| 477 utils.run(kernel_fetch_cmd) | |
| 478 initrd_fetch_cmd = ("cp %s/%s/%s %s" % | |
| 479 (self.nfs_mount, self.boot_path, | |
| 480 os.path.basename(self.initrd), self.image_path)) | |
| 481 utils.run(initrd_fetch_cmd) | |
| 482 finally: | |
| 483 cleanup(self.nfs_mount) | |
| 484 | |
| 485 | |
| 486 def setup(self): | |
| 487 """ | |
| 488 Configure the environment for unattended install. | |
| 489 | |
| 490 Uses an appropriate strategy according to each install model. | |
| 491 """ | |
| 492 logging.info("Starting unattended install setup") | |
| 493 display_attributes(self) | |
| 494 | |
| 495 if self.unattended_file and (self.floppy or self.cdrom_unattended): | |
| 496 self.setup_boot_disk() | |
| 497 if self.medium == "cdrom": | |
| 498 if self.kernel and self.initrd: | |
| 499 self.setup_cdrom() | |
| 500 elif self.medium == "url": | |
| 501 self.setup_url() | |
| 502 elif self.medium == "nfs": | |
| 503 self.setup_nfs() | |
| 504 else: | |
| 505 raise ValueError("Unexpected installation method %s" % | |
| 506 self.medium) | |
| 507 | |
| 508 | |
| 509 class HugePageConfig(object): | 9 class HugePageConfig(object): |
| 510 def __init__(self, params): | 10 def __init__(self, params): |
| 511 """ | 11 """ |
| 512 Gets environment variable values and calculates the target number | 12 Gets environment variable values and calculates the target number |
| 513 of huge memory pages. | 13 of huge memory pages. |
| 514 | 14 |
| 515 @param params: Dict like object containing parameters for the test. | 15 @param params: Dict like object containing parameters for the test. |
| 516 """ | 16 """ |
| 517 self.vms = len(params.objects("vms")) | 17 self.vms = len(params.objects("vms")) |
| 518 self.mem = int(params.get("mem")) | 18 self.mem = int(params.get("mem")) |
| (...skipping 79 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 598 | 98 |
| 599 @error.context_aware | 99 @error.context_aware |
| 600 def cleanup(self): | 100 def cleanup(self): |
| 601 error.context("trying to dealocate hugepage memory") | 101 error.context("trying to dealocate hugepage memory") |
| 602 try: | 102 try: |
| 603 utils.system("umount %s" % self.hugepage_path) | 103 utils.system("umount %s" % self.hugepage_path) |
| 604 except error.CmdError: | 104 except error.CmdError: |
| 605 return | 105 return |
| 606 utils.system("echo 0 > %s" % self.kernel_hp_file) | 106 utils.system("echo 0 > %s" % self.kernel_hp_file) |
| 607 logging.debug("Hugepage memory successfuly dealocated") | 107 logging.debug("Hugepage memory successfuly dealocated") |
| 608 | |
| 609 | |
| 610 class EnospcConfig(object): | |
| 611 """ | |
| 612 Performs setup for the test enospc. This is a borg class, similar to a | |
| 613 singleton. The idea is to keep state in memory for when we call cleanup() | |
| 614 on postprocessing. | |
| 615 """ | |
| 616 __shared_state = {} | |
| 617 def __init__(self, test, params): | |
| 618 self.__dict__ = self.__shared_state | |
| 619 root_dir = test.bindir | |
| 620 self.tmpdir = test.tmpdir | |
| 621 self.qemu_img_binary = params.get('qemu_img_binary') | |
| 622 if not os.path.isfile(self.qemu_img_binary): | |
| 623 self.qemu_img_binary = os.path.join(root_dir, | |
| 624 self.qemu_img_binary) | |
| 625 self.raw_file_path = os.path.join(self.tmpdir, 'enospc.raw') | |
| 626 # Here we're trying to choose fairly explanatory names so it's less | |
| 627 # likely that we run in conflict with other devices in the system | |
| 628 self.vgtest_name = params.get("vgtest_name") | |
| 629 self.lvtest_name = params.get("lvtest_name") | |
| 630 self.lvtest_device = "/dev/%s/%s" % (self.vgtest_name, self.lvtest_name) | |
| 631 image_dir = os.path.dirname(params.get("image_name")) | |
| 632 self.qcow_file_path = os.path.join(image_dir, 'enospc.qcow2') | |
| 633 try: | |
| 634 getattr(self, 'loopback') | |
| 635 except AttributeError: | |
| 636 self.loopback = '' | |
| 637 | |
| 638 | |
| 639 @error.context_aware | |
| 640 def setup(self): | |
| 641 logging.debug("Starting enospc setup") | |
| 642 error.context("performing enospc setup") | |
| 643 display_attributes(self) | |
| 644 # Double check if there aren't any leftovers | |
| 645 self.cleanup() | |
| 646 try: | |
| 647 utils.run("%s create -f raw %s 10G" % | |
| 648 (self.qemu_img_binary, self.raw_file_path)) | |
| 649 # Associate a loopback device with the raw file. | |
| 650 # Subject to race conditions, that's why try here to associate | |
| 651 # it with the raw file as quickly as possible | |
| 652 l_result = utils.run("losetup -f") | |
| 653 utils.run("losetup -f %s" % self.raw_file_path) | |
| 654 self.loopback = l_result.stdout.strip() | |
| 655 # Add the loopback device configured to the list of pvs | |
| 656 # recognized by LVM | |
| 657 utils.run("pvcreate %s" % self.loopback) | |
| 658 utils.run("vgcreate %s %s" % (self.vgtest_name, self.loopback)) | |
| 659 # Create an lv inside the vg with starting size of 200M | |
| 660 utils.run("lvcreate -L 200M -n %s %s" % | |
| 661 (self.lvtest_name, self.vgtest_name)) | |
| 662 # Create a 10GB qcow2 image in the logical volume | |
| 663 utils.run("%s create -f qcow2 %s 10G" % | |
| 664 (self.qemu_img_binary, self.lvtest_device)) | |
| 665 # Let's symlink the logical volume with the image name that autotest | |
| 666 # expects this device to have | |
| 667 os.symlink(self.lvtest_device, self.qcow_file_path) | |
| 668 except Exception, e: | |
| 669 self.cleanup() | |
| 670 raise | |
| 671 | |
| 672 @error.context_aware | |
| 673 def cleanup(self): | |
| 674 error.context("performing enospc cleanup") | |
| 675 if os.path.isfile(self.lvtest_device): | |
| 676 utils.run("fuser -k %s" % self.lvtest_device) | |
| 677 time.sleep(2) | |
| 678 l_result = utils.run("lvdisplay") | |
| 679 # Let's remove all volumes inside the volume group created | |
| 680 if self.lvtest_name in l_result.stdout: | |
| 681 utils.run("lvremove -f %s" % self.lvtest_device) | |
| 682 # Now, removing the volume group itself | |
| 683 v_result = utils.run("vgdisplay") | |
| 684 if self.vgtest_name in v_result.stdout: | |
| 685 utils.run("vgremove -f %s" % self.vgtest_name) | |
| 686 # Now, if we can, let's remove the physical volume from lvm list | |
| 687 if self.loopback: | |
| 688 p_result = utils.run("pvdisplay") | |
| 689 if self.loopback in p_result.stdout: | |
| 690 utils.run("pvremove -f %s" % self.loopback) | |
| 691 l_result = utils.run('losetup -a') | |
| 692 if self.loopback and (self.loopback in l_result.stdout): | |
| 693 try: | |
| 694 utils.run("losetup -d %s" % self.loopback) | |
| 695 except error.CmdError: | |
| 696 logging.error("Failed to liberate loopback %s", self.loopback) | |
| 697 if os.path.islink(self.qcow_file_path): | |
| 698 os.remove(self.qcow_file_path) | |
| 699 if os.path.isfile(self.raw_file_path): | |
| 700 os.remove(self.raw_file_path) | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 6883035:
Merge remote branch 'autotest-upstream/master' into autotest-merge (Closed)
Base URL: ssh://gitrw.chromium.org:9222/autotest.git@master