def create_loopback(name, size):
# Remove the file if exists
if os.path.isfile(name):
os.remove(name)
# Create an empty file
with open(name, 'wb') as f:
f.seek(1024 * 1024 * 1024 * size - 1)
f.write(b"\0")
LOG.debug("formatting '{0}' as XFS".format(name))
util.run_command("mkfs.xfs %s" % name)
def create_rings(self):
replicas = CONF['CONFIG_SWIFT_STORAGE_REPLICAS']
ip = util.get_ip()
for ringtype, port in [('object', '6000'),
('container', '6001'),
('account', 6002)]:
LOG.debug("creating '{0}' ring with {1} "
"replicas".format(ringtype, replicas))
cmd = ("swift-ring-builder {0}.builder create 10 {1} 1"
.format(ringtype, replicas))
util.run_command(cmd)
for device in self._devices:
LOG.debug("adding '{0}' storage node on ring "
"'{1}'".format(device['name'], ringtype))
cmd = ("swift-ring-builder %s.builder add --region 1 "
"--zone %s --ip %s --port %s --device %s --weight 100"
% (ringtype, device['zone'], ip, port, device['name']))
util.run_command(cmd)
LOG.debug("rebalancing ring '{0}'".format(ringtype))
cmd = "swift-ring-builder {0}.builder rebalance".format(ringtype)
util.run_command(cmd)
if os.path.isfile("/etc/swift/%s.ring.gz" % ringtype):
os.remove("/etc/swift/%s.ring.gz" % ringtype)
shutil.move("%s.ring.gz" % ringtype, "/etc/swift")