def create(self, dbg, sr_uuid, configuration, name, description):
log.debug('{}: SR.create: config={}, sr_uuid={}'.format(
dbg, configuration, sr_uuid))
uri = configuration['file-uri']
sr = urlparse.urlparse(uri).path
log.debug('{}: SR.create: sr={}'.format(dbg, sr))
# Create the metadata database
filebased.Callbacks().create_database(sr)
read_caching = True
if 'read_caching' in configuration:
if configuration['read_caching'] not in [
'true', 't', 'on', '1', 'yes'
]:
read_caching = False
meta = {
'name': name,
'description': description,
'uri': uri,
'unique_id': sr_uuid,
'read_caching': read_caching,
'keys': {}
}
util.update_sr_metadata(dbg, 'file://' + sr, meta)
return configuration
def create(self, dbg, sr_uuid, configuration, name, description):
log.debug('{}: SR.create: config={}, sr_uuid={}'.format(
dbg, configuration, sr_uuid))
uri = configuration['uri']
nfs_uri = urlparse.urlsplit(uri)
if nfs_uri.scheme != 'nfs':
raise ValueError('Incorrect URI scheme')
nfs_server = '{0}:{1}'.format(nfs_uri.netloc, nfs_uri.path)
# Temporarily mount the filesystem so we can write the SR metadata
mnt_path = self._mount(dbg, nfs_server, sr_uuid)
sr = os.path.join(mnt_path, str(sr_uuid))
# Create SR folder based on name
try:
os.makedirs(sr)
except OSError as exc:
if exc.errno == errno.EEXIST:
# Need a specifc error here, SR_already_exists.
# raise ValueError('SR already exists'):
raise
else:
raise
# Create the metadata database
importlib.import_module('nfs-ng').Callbacks().create_database(sr)
read_caching = True
if 'read_caching' in configuration:
if configuration['read_caching'] not in [
'true', 't', 'on', '1', 'yes'
]:
read_caching = False
meta = {
'name': name,
'description': description,
'uri': uri,
'unique_id': sr_uuid,
'read_caching': read_caching,
'keys': {}
}
util.update_sr_metadata(dbg, 'file://' + sr, meta)
self._unmount(dbg, mnt_path)
configuration['sr_uuid'] = sr_uuid
return configuration
def create(self, dbg, sr_uuid, configuration, name, description):
log.debug('{}: SR.create: config={}, sr_uuid={}'.format(
dbg, configuration, sr_uuid))
uri = configuration['device']
dev_path = urlparse.urlparse(uri).path
log.debug('{}: SR.create: dev_path={}'.format(dbg, dev_path))
# Make the filesystem
cmd = ['/usr/sbin/mkfs.ext4', dev_path]
call(dbg, cmd)
# Temporarily mount the filesystem so we can write the SR metadata
sr = self._mount_path(sr_uuid)
util.mkdir_p(sr)
ext4_mount(dbg, dev_path, sr)
# Create the metadata database
importlib.import_module('ext4-ng').Callbacks().create_database(sr)
read_caching = True
if 'read_caching' in configuration:
if configuration['read_caching'] not in [
'true', 't', 'on', '1', 'yes']:
read_caching = False
meta = {
'name': name,
'description': description,
'uri': uri,
'unique_id': sr_uuid,
'read_caching': read_caching,
'keys': {}
}
util.update_sr_metadata(dbg, 'file://' + sr, meta)
ext4_unmount(dbg, sr)
configuration['sr_uuid'] = sr_uuid
return configuration
def set_name(self, dbg, sr, new_name):
util.update_sr_metadata(dbg, 'file://' + sr, {'name': new_name})
def set_description(self, dbg, sr, new_description):
util.update_sr_metadata(
dbg, 'file://' + sr, {'description': new_description})
