def get_update_information_alba_plugin(information):
"""
Called when the 'Update' button in the GUI is pressed
This call collects additional information about the packages which can be updated
Eg:
* Downtime for Arakoons
* Downtime for StorageDrivers
* Prerequisites that haven't been met
* Services which will be stopped during update
* Services which will be restarted after update
"""
# Verify arakoon info
arakoon_ovs_info = {'down': False,
'name': None,
'internal': False}
arakoon_cacc_info = {'down': False,
'name': None,
'internal': False}
for cluster in ['cacc', 'ovsdb']:
cluster_name = ArakoonClusterConfig.get_cluster_name(cluster)
if cluster_name is None:
continue
if cluster == 'cacc':
arakoon_metadata = ArakoonInstaller.get_arakoon_metadata_by_cluster_name(cluster_name=cluster_name, filesystem=True, ip=System.get_my_storagerouter().ip)
else:
arakoon_metadata = ArakoonInstaller.get_arakoon_metadata_by_cluster_name(cluster_name=cluster_name)
if arakoon_metadata['internal'] is True:
config = ArakoonClusterConfig(cluster_id=cluster_name, filesystem=(cluster == 'cacc'))
config.load_config(System.get_my_storagerouter().ip if cluster == 'cacc' else None)
if cluster == 'ovsdb':
arakoon_ovs_info['down'] = len(config.nodes) < 3
arakoon_ovs_info['name'] = arakoon_metadata['cluster_name']
arakoon_ovs_info['internal'] = True
else:
arakoon_cacc_info['name'] = arakoon_metadata['cluster_name']
arakoon_cacc_info['internal'] = True
# Verify StorageRouter downtime
fwk_prerequisites = []
all_storagerouters = StorageRouterList.get_storagerouters()
for storagerouter in all_storagerouters:
try:
SSHClient(endpoint=storagerouter, username='******')
except UnableToConnectException:
fwk_prerequisites.append(['node_down', storagerouter.name])
# Verify ALBA node responsiveness
alba_prerequisites = []
for alba_node in AlbaNodeList.get_albanodes():
try:
alba_node.client.get_metadata()
except Exception:
alba_prerequisites.append(['alba_node_unresponsive', alba_node.ip])
for key in ['framework', 'alba']:
if key not in information:
information[key] = {'packages': {},
'downtime': [],
'prerequisites': fwk_prerequisites if key == 'framework' else alba_prerequisites,
'services_stop_start': set(),
'services_post_update': set()}
for storagerouter in StorageRouterList.get_storagerouters():
if key not in storagerouter.package_information:
continue
# Retrieve Arakoon issues
arakoon_downtime = []
arakoon_services = []
for service in storagerouter.services:
if service.type.name not in [ServiceType.SERVICE_TYPES.ALBA_MGR, ServiceType.SERVICE_TYPES.NS_MGR]:
continue
if service.type.name == ServiceType.SERVICE_TYPES.ALBA_MGR:
cluster_name = AlbaController.get_abm_cluster_name(alba_backend=service.abm_service.alba_backend)
else:
cluster_name = AlbaController.get_nsm_cluster_name(alba_backend=service.nsm_service.alba_backend, number=service.nsm_service.number)
if Configuration.exists('/ovs/arakoon/{0}/config'.format(cluster_name), raw=True) is False:
continue
arakoon_metadata = ArakoonInstaller.get_arakoon_metadata_by_cluster_name(cluster_name=cluster_name)
if arakoon_metadata['internal'] is True:
arakoon_services.append('ovs-{0}'.format(service.name))
config = ArakoonClusterConfig(cluster_id=cluster_name, filesystem=False)
config.load_config()
if len(config.nodes) < 3:
if service.type.name == ServiceType.SERVICE_TYPES.NS_MGR:
arakoon_downtime.append(['backend', service.nsm_service.alba_backend.name])
else:
arakoon_downtime.append(['backend', service.abm_service.alba_backend.name])
for package_name, package_info in storagerouter.package_information[key].iteritems():
if package_name not in AlbaUpdateController.alba_plugin_packages:
continue # Only gather information for the core packages
information[key]['services_post_update'].update(package_info.pop('services_to_restart'))
if package_name not in information[key]['packages']:
information[key]['packages'][package_name] = {}
information[key]['packages'][package_name].update(package_info)
if package_name == 'openvstorage-backend':
if ['gui', None] not in information[key]['downtime']:
information[key]['downtime'].append(['gui', None])
if ['api', None] not in information[key]['downtime']:
information[key]['downtime'].append(['api', None])
information[key]['services_stop_start'].update({'watcher-framework', 'memcached'})
elif package_name == 'alba':
for down in arakoon_downtime:
if down not in information[key]['downtime']:
information[key]['downtime'].append(down)
information[key]['services_post_update'].update(arakoon_services)
elif package_name == 'arakoon':
if key == 'framework':
framework_arakoons = set()
if arakoon_ovs_info['internal'] is True:
framework_arakoons.add('ovs-arakoon-{0}'.format(arakoon_ovs_info['name']))
if arakoon_cacc_info['internal'] is True:
framework_arakoons.add('ovs-arakoon-{0}'.format(arakoon_cacc_info['name']))
information[key]['services_post_update'].update(framework_arakoons)
if arakoon_ovs_info['down'] is True and ['ovsdb', None] not in information[key]['downtime']:
information[key]['downtime'].append(['ovsdb', None])
else:
for down in arakoon_downtime:
if down not in information[key]['downtime']:
information[key]['downtime'].append(down)
information[key]['services_post_update'].update(arakoon_services)
for alba_node in AlbaNodeList.get_albanodes():
for package_name, package_info in alba_node.package_information.get(key, {}).iteritems():
if package_name not in AlbaUpdateController.sdm_packages:
continue # Only gather information for the SDM packages
information[key]['services_post_update'].update(package_info.pop('services_to_restart'))
if package_name not in information[key]['packages']:
information[key]['packages'][package_name] = {}
information[key]['packages'][package_name].update(package_info)
return information
