def add_maintenance_service(name, backend_guid, abm_name):
"""
Add a maintenance service with a specific name
:param name: Name of the service to add
:type name: str
:param backend_guid: Backend for which the maintenance service needs to run
:type backend_guid: str
:param abm_name: Name of the ABM cluster
:type abm_name: str
"""
if ServiceManager.has_service(name, MaintenanceController._local_client) is False:
config_location = '/ovs/alba/backends/{0}/maintenance/config'.format(backend_guid)
alba_config = Configuration.get_configuration_path(config_location)
node_id = os.environ.get('ASD_NODE_ID')
params = {'ALBA_CONFIG': alba_config,
'LOG_SINK': LogHandler.get_sink_path('alba_maintenance')}
Configuration.set(config_location, json.dumps({
'log_level': 'info',
'albamgr_cfg_url': Configuration.get_configuration_path('/ovs/arakoon/{0}/config'.format(abm_name)),
'read_preference': [] if node_id is None else [node_id]
}, indent=4), raw=True)
ServiceManager.add_service(name=MaintenanceController.MAINTENANCE_PREFIX,
client=MaintenanceController._local_client,
params=params,
target_name=name)
ServiceManager.start_service(name, MaintenanceController._local_client)
def write_config(self, ip=None):
"""
Writes the configuration down to in the format expected by Arakoon
"""
contents = self.export_ini()
if self.filesystem is False:
Configuration.set(self.config_path, contents, raw=True)
else:
client = self._load_client(ip)
client.file_write(self.config_path, contents)
def register_service(node_name, service_metadata):
"""
Register the metadata of the service to the configuration management
:param node_name: Unused
:type node_name: str
:param service_metadata: Metadata of the service
:type service_metadata: dict
:return: None
"""
_ = node_name
service_name = service_metadata['SERVICE_NAME']
with open(Toolbox.BOOTSTRAP_FILE, 'r') as bs_file:
node_id = json.load(bs_file)['node_id']
Configuration.set(key='/ovs/alba/asdnodes/{0}/services/{1}'.format(node_id, Toolbox.remove_prefix(service_name, 'ovs-')),
value=service_metadata)
CONFIG_ROOT = '/ovs/alba/asdnodes/{0}/config'.format(NODE_ID)
CURRENT_VERSION = 1
_logger = LogHandler.get('asd-manager', name='post-update')
_logger.info('Executing post-update logic of package openvstorage-sdm')
with file_mutex('package_update_pu'):
client = LocalClient('127.0.0.1', username='******')
key = '{0}/versions'.format(CONFIG_ROOT)
version = Configuration.get(key) if Configuration.exists(key) else 0
service_name = 'asd-manager'
if ServiceManager.has_service(service_name, client) and ServiceManager.get_service_status(service_name, client)[0] is True:
_logger.info('Stopping asd-manager service')
ServiceManager.stop_service(service_name, client)
if version < CURRENT_VERSION:
try:
# Put migration code here
pass
except:
pass
Configuration.set(key, CURRENT_VERSION)
if ServiceManager.has_service(service_name, client) and ServiceManager.get_service_status(service_name, client)[0] is False:
_logger.info('Starting asd-manager service')
ServiceManager.start_service(service_name, client)
_logger.info('Post-update logic executed')
def set_net():
""" Set IP information """
API._logger.info('Setting network information')
Configuration.set('{0}/network|ips'.format(API.CONFIG_ROOT), json.loads(request.form['ips']))
def create_asd(partition_alias):
"""
Creates and starts an ASD on a given disk
:param partition_alias: Alias of the partition of a disk (eg: /dev/disk/by-id/scsi-1ATA_TOSHIBA_MK2002TSKB_92M1KDMHF-part1)
:type partition_alias: str
:return: None
"""
all_asds = {}
mountpoint = None
for alias, mtpt in FSTab.read().iteritems():
all_asds.update(ASDController.list_asds(mtpt))
if alias == partition_alias:
mountpoint = mtpt
if mountpoint is None:
raise RuntimeError('Failed to retrieve the mountpoint for partition with alias: {0}'.format(partition_alias))
# Fetch disk information
disk_size = int(ASDController._local_client.run(['df', '-B', '1', '--output=size', mountpoint]).splitlines()[1])
# Find out appropriate disk size
asds = 1.0
for asd_id in os.listdir(mountpoint):
if os.path.isdir('/'.join([mountpoint, asd_id])) and Configuration.exists(ASDController.ASD_CONFIG.format(asd_id)):
asds += 1
asd_size = int(math.floor(disk_size / asds))
for asd_id in os.listdir(mountpoint):
if os.path.isdir('/'.join([mountpoint, asd_id])) and Configuration.exists(ASDController.ASD_CONFIG.format(asd_id)):
config = json.loads(Configuration.get(ASDController.ASD_CONFIG.format(asd_id), raw=True))
config['capacity'] = asd_size
config['rocksdb_block_cache_size'] = int(asd_size / 1024 / 4)
Configuration.set(ASDController.ASD_CONFIG.format(asd_id), json.dumps(config, indent=4), raw=True)
try:
ServiceManager.send_signal(ASDController.ASD_SERVICE_PREFIX.format(asd_id),
signal.SIGUSR1,
ASDController._local_client)
except Exception as ex:
ASDController._logger.info('Could not send signal to ASD for reloading the quota: {0}'.format(ex))
# Prepare & start service
asd_id = ''.join(random.choice(string.ascii_letters + string.digits) for _ in range(32))
ASDController._logger.info('Setting up service for disk {0}'.format(partition_alias))
homedir = '{0}/{1}'.format(mountpoint, asd_id)
base_port = Configuration.get('{0}/network|port'.format(ASDController.CONFIG_ROOT))
ips = Configuration.get('{0}/network|ips'.format(ASDController.CONFIG_ROOT))
used_ports = []
for asd in all_asds.itervalues():
used_ports.append(asd['port'])
if 'rora_port' in asd:
used_ports.append(asd['rora_port'])
asd_port = base_port
rora_port = base_port + 1
while asd_port in used_ports:
asd_port += 1
used_ports.append(asd_port)
while rora_port in used_ports:
rora_port += 1
asd_config = {'home': homedir,
'node_id': ASDController.NODE_ID,
'asd_id': asd_id,
'capacity': asd_size,
'log_level': 'info',
'port': asd_port,
'transport': 'tcp',
'rocksdb_block_cache_size': int(asd_size / 1024 / 4)}
if Configuration.get('/ovs/framework/rdma'):
asd_config['rora_port'] = rora_port
asd_config['rora_transport'] = 'rdma'
if ips is not None and len(ips) > 0:
asd_config['ips'] = ips
if Configuration.exists('{0}/extra'.format(ASDController.CONFIG_ROOT)):
data = Configuration.get('{0}/extra'.format(ASDController.CONFIG_ROOT))
asd_config.update(data)
Configuration.set(ASDController.ASD_CONFIG.format(asd_id), json.dumps(asd_config, indent=4), raw=True)
service_name = ASDController.ASD_SERVICE_PREFIX.format(asd_id)
params = {'CONFIG_PATH': Configuration.get_configuration_path('/ovs/alba/asds/{0}/config'.format(asd_id)),
'SERVICE_NAME': service_name,
'LOG_SINK': LogHandler.get_sink_path('alba_asd')}
os.mkdir(homedir)
ASDController._local_client.run(['chown', '-R', 'alba:alba', homedir])
ServiceManager.add_service('alba-asd', ASDController._local_client, params, service_name)
ASDController.start_asd(asd_id)
