def snapshot(self, op, name):
rebundle_dir = tempfile.mkdtemp()
archive_path = ''
try:
pl = __node__['platform']
proj_id = pl.get_numeric_project_id()
proj_name = pl.get_project_id()
cloudstorage = pl.new_storage_client()
root_part_path = os.path.realpath('/dev/root')
root_part_sysblock_path = glob.glob('/sys/block/*/%s' % os.path.basename(root_part_path))[0]
root_device = '/dev/%s' % os.path.basename(os.path.dirname(root_part_sysblock_path))
archive_name = '%s.tar.gz' % name.lower()
archive_path = os.path.join(rebundle_dir, archive_name)
self._prepare_software()
gcimagebundle_bin = software.which('gcimagebundle')
out, err, code = util.system2((gcimagebundle_bin,
'-d', root_device,
'-e', ','.join(self.exclude_dirs),
'-o', rebundle_dir,
'--output_file_name', archive_name), raise_exc=False)
if code:
raise ImageAPIError('Gcimagebundle util returned non-zero code %s. Stderr: %s' % (code, err))
LOG.info('Uploading compressed image to cloud storage')
tmp_bucket_name = 'scalr-images-%s-%s' % (random.randint(1, 1000000), int(time.time()))
remote_path = 'gcs://%s/%s' % (tmp_bucket_name, archive_name)
arch_size = os.stat(archive_path).st_size
uploader = FileTransfer(src=archive_path, dst=remote_path)
try:
upload_result = uploader.run()
if upload_result['failed']:
errors = [str(failed['exc_info'][1]) for failed in upload_result['failed']]
raise ImageAPIError('Image upload failed. Errors:\n%s' % '\n'.join(errors))
assert arch_size == upload_result['completed'][0]['size']
except:
self._remove_bucket(tmp_bucket_name, archive_name, cloudstorage)
raise
finally:
shutil.rmtree(rebundle_dir)
if os.path.exists(archive_path):
os.remove(archive_path)
image_name = name.lower().replace('_', '-') + '-' + str(int(time.time()))
self._register_image(image_name, tmp_bucket_name, archive_name, cloudstorage)
return '%s/images/%s' % (proj_name, image_name)
def rebundle(self):
rebundle_dir = tempfile.mkdtemp()
try:
pl = bus.platform
proj_id = pl.get_numeric_project_id()
proj_name = pl.get_project_id()
cloudstorage = pl.new_storage_client()
root_part_path = os.path.realpath('/dev/root')
root_part_sysblock_path = glob.glob('/sys/block/*/%s' % os.path.basename(root_part_path))[0]
root_device = '/dev/%s' % os.path.basename(os.path.dirname(root_part_sysblock_path))
arch_name = '%s.tar.gz' % self._role_name.lower()
arch_path = os.path.join(rebundle_dir, arch_name)
# update gcimagebundle
try:
pkgmgr.latest(self.gcimagebundle_pkg_name)
except:
e = sys.exc_info()[1]
LOG.warn('Gcimagebundle update failed: %s' % e)
if os_dist.redhat_family:
semanage = software.which('semanage')
if not semanage:
pkgmgr.installed('policycoreutils-python')
semanage = software.which('semanage')
util.system2((semanage, 'permissive', '-a', 'rsync_t'))
gc_img_bundle_bin = software.which('gcimagebundle')
o, e, p = util.system2((gc_img_bundle_bin,
'-d', root_device,
'-e', ','.join(self.exclude_dirs),
'-o', rebundle_dir,
'--output_file_name', arch_name), raise_exc=False)
if p:
raise HandlerError('Gcimagebundle util returned non-zero code %s. Stderr: %s' % (p, e))
try:
LOG.info('Uploading compressed image to cloud storage')
tmp_bucket_name = 'scalr-images-%s-%s' % (random.randint(1, 1000000), int(time.time()))
remote_path = 'gcs://%s/%s' % (tmp_bucket_name, arch_name)
arch_size = os.stat(arch_path).st_size
uploader = FileTransfer(src=arch_path, dst=remote_path)
try:
upload_result = uploader.run()
if upload_result['failed']:
errors = [str(failed['exc_info'][1]) for failed in upload_result['failed']]
raise HandlerError('Image upload failed. Errors:\n%s' % '\n'.join(errors))
assert arch_size == upload_result['completed'][0]['size']
except:
with util.capture_exception(LOG):
objs = cloudstorage.objects()
objs.delete(bucket=tmp_bucket_name, object=arch_name).execute()
cloudstorage.buckets().delete(bucket=tmp_bucket_name).execute()
finally:
os.unlink(arch_path)
finally:
shutil.rmtree(rebundle_dir)
goog_image_name = self._role_name.lower().replace('_', '-') + '-' + str(int(time.time()))
try:
LOG.info('Registering new image %s' % goog_image_name)
compute = pl.new_compute_client()
image_url = 'http://storage.googleapis.com/%s/%s' % (tmp_bucket_name, arch_name)
req_body = dict(
name=goog_image_name,
sourceType='RAW',
rawDisk=dict(
source=image_url
)
)
req = compute.images().insert(project=proj_id, body=req_body)
operation = req.execute()['name']
LOG.info('Waiting for image to register')
def image_is_ready():
req = compute.globalOperations().get(project=proj_id, operation=operation)
res = req.execute()
if res['status'] == 'DONE':
if res.get('error'):
errors = []
for e in res['error']['errors']:
err_text = '%s: %s' % (e['code'], e['message'])
errors.append(err_text)
raise Exception('\n'.join(errors))
return True
return False
util.wait_until(image_is_ready, logger=LOG, timeout=600)
finally:
try:
objs = cloudstorage.objects()
objs.delete(bucket=tmp_bucket_name, object=arch_name).execute()
cloudstorage.buckets().delete(bucket=tmp_bucket_name).execute()
except:
e = sys.exc_info()[1]
LOG.error('Faled to remove image compressed source: %s' % e)
return '%s/images/%s' % (proj_name, goog_image_name)
def rebundle(self):
rebundle_dir = tempfile.mkdtemp()
try:
pl = bus.platform
proj_id = pl.get_numeric_project_id()
proj_name = pl.get_project_id()
cloudstorage = pl.new_storage_client()
root_part_path = os.path.realpath('/dev/root')
root_part_sysblock_path = glob.glob(
'/sys/block/*/%s' % os.path.basename(root_part_path))[0]
root_device = '/dev/%s' % os.path.basename(
os.path.dirname(root_part_sysblock_path))
arch_name = '%s.tar.gz' % self._role_name.lower()
arch_path = os.path.join(rebundle_dir, arch_name)
# update gcimagebundle
try:
pkgmgr.latest(self.gcimagebundle_pkg_name)
except:
e = sys.exc_info()[1]
LOG.warn('Gcimagebundle update failed: %s' % e)
if os_dist.redhat_family:
semanage = software.which('semanage')
if not semanage:
pkgmgr.installed('policycoreutils-python')
semanage = software.which('semanage')
util.system2((semanage, 'permissive', '-a', 'rsync_t'))
gc_img_bundle_bin = software.which('gcimagebundle')
o, e, p = util.system2(
(gc_img_bundle_bin, '-d', root_device, '-e', ','.join(
self.exclude_dirs), '-o', rebundle_dir,
'--output_file_name', arch_name),
raise_exc=False)
if p:
raise HandlerError(
'Gcimagebundle util returned non-zero code %s. Stderr: %s'
% (p, e))
try:
LOG.info('Uploading compressed image to cloud storage')
tmp_bucket_name = 'scalr-images-%s-%s' % (random.randint(
1, 1000000), int(time.time()))
remote_path = 'gcs://%s/%s' % (tmp_bucket_name, arch_name)
arch_size = os.stat(arch_path).st_size
uploader = FileTransfer(src=arch_path, dst=remote_path)
try:
upload_result = uploader.run()
if upload_result['failed']:
errors = [
str(failed['exc_info'][1])
for failed in upload_result['failed']
]
raise HandlerError('Image upload failed. Errors:\n%s' %
'\n'.join(errors))
assert arch_size == upload_result['completed'][0]['size']
except:
with util.capture_exception(LOG):
objs = cloudstorage.objects()
objs.delete(bucket=tmp_bucket_name,
object=arch_name).execute()
cloudstorage.buckets().delete(
bucket=tmp_bucket_name).execute()
finally:
os.unlink(arch_path)
finally:
shutil.rmtree(rebundle_dir)
goog_image_name = self._role_name.lower().replace(
'_', '-') + '-' + str(int(time.time()))
try:
LOG.info('Registering new image %s' % goog_image_name)
compute = pl.new_compute_client()
image_url = 'http://storage.googleapis.com/%s/%s' % (
tmp_bucket_name, arch_name)
req_body = dict(name=goog_image_name,
sourceType='RAW',
rawDisk=dict(source=image_url))
req = compute.images().insert(project=proj_id, body=req_body)
operation = req.execute()['name']
LOG.info('Waiting for image to register')
def image_is_ready():
req = compute.globalOperations().get(project=proj_id,
operation=operation)
res = req.execute()
if res['status'] == 'DONE':
if res.get('error'):
errors = []
for e in res['error']['errors']:
err_text = '%s: %s' % (e['code'], e['message'])
errors.append(err_text)
raise Exception('\n'.join(errors))
return True
return False
util.wait_until(image_is_ready, logger=LOG, timeout=600)
finally:
try:
objs = cloudstorage.objects()
objs.delete(bucket=tmp_bucket_name, object=arch_name).execute()
cloudstorage.buckets().delete(bucket=tmp_bucket_name).execute()
except:
e = sys.exc_info()[1]
LOG.error('Faled to remove image compressed source: %s' % e)
return '%s/images/%s' % (proj_name, goog_image_name)
def rebundle(self):
rebundle_dir = tempfile.mkdtemp()
try:
pl = bus.platform
proj_id = pl.get_numeric_project_id()
proj_name = pl.get_project_id()
cloudstorage = pl.new_storage_client()
tmp_mount_dir = os.path.join(rebundle_dir, 'root')
os.makedirs(tmp_mount_dir)
image_name = 'disk.raw'
image_path = os.path.join(rebundle_dir, image_name)
root_size = coreutils.statvfs('/')['size']
LOG.debug('Creating image file %s' % image_path)
with open(image_path, 'w') as f:
f.truncate(root_size + 1*1024)
try:
LOG.debug('Creating partition table on image')
system(('parted', image_path, 'mklabel', 'msdos'))
system(('parted', image_path, 'mkpart', 'primary', 'ext2', 1, str(root_size/(1024*1024))))
# Map disk image
out = system(('kpartx', '-av', image_path))[0]
try:
loop = re.search('(/dev/loop\d+)', out).group(1)
root_dev_name = '/dev/mapper/%sp1' % loop.split('/')[-1]
LOG.info('Creating filesystem')
storage2.filesystem('ext4').mkfs(root_dev_name)
dev_uuid = uuid.uuid4()
system(('tune2fs', '-U', str(dev_uuid), root_dev_name))
mount.mount(root_dev_name, tmp_mount_dir)
try:
lines = system(('/bin/mount', '-l'))[0].splitlines()
exclude_dirs = set()
for line in lines:
mpoint = line.split()[2]
if mpoint != '/':
exclude_dirs.add(mpoint)
exclude_dirs.update(self.exclude_dirs)
excludes = [os.path.join(ex, '**') for ex in exclude_dirs]
excludes.extend(self.exclude_files)
excludes.extend(self._excludes)
LOG.info('Copying root filesystem to image')
rsync('/', tmp_mount_dir, archive=True,
hard_links=True,
times=True,
sparse=True,
exclude=excludes)
LOG.info('Cleanup image')
self._create_spec_devices(tmp_mount_dir)
LOG.debug('Removing roles-builder user')
sh = pexpect.spawn('/bin/sh')
try:
sh.sendline('chroot %s' % tmp_mount_dir)
sh.expect('#')
sh.sendline('userdel -rf %s' % ROLEBUILDER_USER)
sh.expect('#')
finally:
sh.close()
""" Patch fstab"""
fstab_path = os.path.join(tmp_mount_dir, 'etc/fstab')
if os.path.exists(fstab_path):
with open(fstab_path) as f:
fstab = f.read()
new_fstab = re.sub('UUID=\S+\s+/\s+(.*)', 'UUID=%s / \\1' % dev_uuid, fstab)
with open(fstab_path, 'w') as f:
f.write(new_fstab)
finally:
mount.umount(root_dev_name)
finally:
system(('kpartx', '-d', image_path))
LOG.info('Compressing image.')
arch_name = '%s.tar.gz' % self._role_name.lower()
arch_path = os.path.join(rebundle_dir, arch_name)
tar = Tar()
tar.create().gzip().sparse()
tar.archive(arch_path)
tar.add(image_name, rebundle_dir)
system(str(tar), shell=True)
finally:
os.unlink(image_path)
try:
LOG.info('Uploading compressed image to cloud storage')
tmp_bucket_name = 'scalr-images-%s-%s' % (random.randint(1, 1000000), int(time.time()))
remote_path = 'gcs://%s/%s' % (tmp_bucket_name, arch_name)
arch_size = os.stat(arch_path).st_size
uploader = FileTransfer(src=arch_path, dst=remote_path)
try:
upload_result = uploader.run()
if upload_result['failed']:
errors = [str(failed['exc_info'][1]) for failed in upload_result['failed']]
raise HandlerError('Image upload failed. Errors:\n%s' % '\n'.join(errors))
assert arch_size == upload_result['completed'][0]['size']
except:
with capture_exception(LOG):
objs = cloudstorage.objects()
objs.delete(bucket=tmp_bucket_name, object=arch_name).execute()
cloudstorage.buckets().delete(bucket=tmp_bucket_name).execute()
finally:
os.unlink(arch_path)
finally:
shutil.rmtree(rebundle_dir)
try:
goog_image_name = self._role_name.lower().replace('_', '-')
LOG.info('Registering new image %s' % goog_image_name)
# TODO: check duplicate names
compute = pl.new_compute_client()
# Getting this instance's kernel
instance_id = pl.get_instance_id()
zone = os.path.basename(pl.get_zone())
all_instances = compute.instances().list(project=proj_id, zone=zone, fields="items(kernel,id)").execute()['items']
try:
kernel = filter(lambda inst: inst['id'] == instance_id, all_instances)[0]['kernel']
except KeyError:
# Looks like this instance was started from image, getting kernel from image
try:
current_image = pl.get_image()
current_image_fq = current_image.split('/')
current_img_project = current_image_fq[1]
current_img_name = current_image_fq[3]
current_img_obj = compute.images().get(project=current_img_project,
image=current_img_name).execute()
kernel = current_img_obj['preferredKernel']
except:
raise HandlerError('Could not obtain kernel for this instance')
image_url = 'http://storage.googleapis.com/%s/%s' % (tmp_bucket_name, arch_name)
req_body = dict(
name=goog_image_name,
sourceType='RAW',
preferredKernel=kernel,
rawDisk=dict(
containerType='TAR',
source=image_url
)
)
req = compute.images().insert(project=proj_id, body=req_body)
operation = req.execute()['name']
LOG.info('Waiting for image to register')
def image_is_ready():
req = compute.globalOperations().get(project=proj_id, operation=operation)
res = req.execute()
if res['status'] == 'DONE':
if res.get('error'):
errors = []
for e in res['error']['errors']:
err_text = '%s: %s' % (e['code'], e['message'])
errors.append(err_text)
raise Exception('\n'.join(errors))
return True
return False
wait_until(image_is_ready, logger=LOG, timeout=600)
finally:
try:
objs = cloudstorage.objects()
objs.delete(bucket=tmp_bucket_name, object=arch_name).execute()
cloudstorage.buckets().delete(bucket=tmp_bucket_name).execute()
except:
e = sys.exc_info()[1]
LOG.error('Faled to remove image compressed source: %s' % e)
return '%s/images/%s' % (proj_name, goog_image_name)