def __init__(self, start=False):
output('Welcome to MiniCloud!\n')
super(MiniCloudMgnt, self).__init__(self.setup_minicloud())
self.cloud_mgnt = CloudMgnt(self)
self.cluster_mgnt = ClusterMgnt(self)
self.instance_mgnt = InstanceMgnt(self)
self.network_mgnt = NetworkMgnt(self)
self.router_mgnt = RouterMgnt(self)
self.first_topology = True
if start:
self.manage_entities()
class MiniCloudMgnt(EntityMgnt):
def __init__(self, start=False):
output('Welcome to MiniCloud!\n')
super(MiniCloudMgnt, self).__init__(self.setup_minicloud())
self.cloud_mgnt = CloudMgnt(self)
self.cluster_mgnt = ClusterMgnt(self)
self.instance_mgnt = InstanceMgnt(self)
self.network_mgnt = NetworkMgnt(self)
self.router_mgnt = RouterMgnt(self)
self.first_topology = True
if start:
self.manage_entities()
def obtain_choices(self):
class Choices:
def __init__(self):
pass
CLOUD_DEPLOYMENT_OVERVIEW = 1
CLOUD_MGNT = 2
CLUSTER_MGNT = 3
ROUTER_MGNT = 4
NETWORK_MGNT = 5
INSTANCE_MGNT = 6
RESET = 7
DESTROY_ALL = 8
options_list = ['Cloud deployment topology',
'Cloud management',
'Cluster management',
'Router management',
'Network management',
'Instance management',
'Reset to startup',
'Destroy all data and exit',
'Exit (keep data)']
return Choices()
def manage_entities(self):
while True:
choices = self.obtain_choices()
choice = choice_input_list('MiniCloud', choices.options_list)
if choice == choices.CLOUD_DEPLOYMENT_OVERVIEW:
self.topologize()
elif choice == choices.CLOUD_MGNT:
self.cloud_mgnt.manage_entities()
elif choice == choices.CLUSTER_MGNT:
self.cluster_mgnt.manage_entities()
elif choice == choices.ROUTER_MGNT:
self.router_mgnt.manage_entities()
elif choice == choices.NETWORK_MGNT:
self.network_mgnt.manage_entities()
elif choice == choices.INSTANCE_MGNT:
self.instance_mgnt.manage_entities()
elif choice == choices.RESET:
self.reset()
elif choice == choices.DESTROY_ALL:
self.drop_all()
self.end_program()
break
else:
self.end_program()
break
@staticmethod
def obtain_db_credentials(db_host, db_username, db_password, db_name):
return DatabaseCredentials(shell_input('Database host', db_host, default='localhost'),
shell_input('Database username', db_username, default='minicloud'),
shell_input('Database password', db_password, default='password'),
shell_input('Database name', db_name, default='minicloud'))
@staticmethod
def setup_minicloud():
database = None
try:
output('Setting up MiniCloud ...')
database = MiniCloudMgnt.obtain_db_credentials('MINICLOUD_DB_HOST', 'MINICLOUD_DB_USERNAME',
'MINICLOUD_DB_PASSWORD', 'MINICLOUD_DB_NAME')
mc = MiniCloud(database)
print
if mc.system.get_setting('first_use') is None:
mc.system.set_setting('first_use', datetime.datetime.now().strftime('%d-%m-%Y'))
output('This is the first use of MiniCloud!')
else:
output('The first use of MiniCloud was %s!', mc.system.get_setting('first_use'))
return mc
except DatabaseException as e:
output(e)
output('Please make sure you have a MySql server running,\n'
'the MiniCloud database is present and users are provisioned.\n\n'
'Install mysql-server\n\n'
'give: mysql -u root -p\n'
'<password>\n\n'
'mysql> CREATE DATABASE %s;', database.database)
if database.username != 'root':
output('mysql> CREATE USER \'%s\'@\'%s\' IDENTIFIED BY \'%s\';',
database.username, database.host, database.password)
output('mysql> GRANT ALL PRIVILEGES ON %s.* to %s@%s;',
database.database, database.username, database.host)
output('mysql> FLUSH PRIVILEGES;')
output('mysql> exit;')
fatal_error()
def get_topology(self, indent=''):
deep_topology = self.first_topology
show_empty_compute_entities = False
show_empty_network_entities = True
if not boolean_input('Default topology parameters' + (' (DEEP fetch)' if deep_topology else '')):
deep_topology = self.force_deep_topology()
show_empty_compute_entities = boolean_input(
'Show empty compute entities', show_empty_compute_entities)
show_empty_network_entities = boolean_input(
'Show empty network entities', show_empty_network_entities)
self.first_topology = False
return self.build_topology(deep_topology, 'MiniCloud', indent, indent,
show_empty_compute_entities=show_empty_compute_entities,
show_empty_network_entities=show_empty_network_entities)
def topology(self, entity, deep_topology, root_prefix="", prefix="", show_empty_entities=False):
pass
def build_topology(self, deep_topology=False,
root=None, root_prefix='', prefix='', entity=None,
skip_head=False, skip_prebuild=False,
list_entities=None, entity_mgnt=None,
show_empty_compute_entities=True, show_empty_network_entities=True):
s = ''
head = root_prefix + root + '\n' + root_prefix + '|\n'
sn, nc = self.router_mgnt.build_topology(
deep_topology, 'Networking', prefix + '+---', prefix + ' ',
show_empty_entities=show_empty_network_entities)
cline = '|' if nc else ' '
sc, cc = self.cloud_mgnt.build_topology(
deep_topology, 'Compute', prefix + '+---', prefix + cline + ' ',
show_empty_entities=show_empty_compute_entities)
if cc:
s = head + sc
if nc:
s = s + prefix + '|\n' + sn
elif nc:
s = head + sn
return s, cc+nc
def reset(self):
output('Reset\'ing.')
self.manager.reset()
self.first_topology = True
output('Done.')
def drop_all(self):
if boolean_input('Are you ABSOLUTELY sure you want to do this', default=False):
if boolean_input('Once again, ABSOLUTELY sure', default=False):
self.manager.drop(boolean_input('Do you want to clean up the deployed data also (Y)'
' or is pure db clear sufficient (n)'))
output('All data is cleared.')
return
# else
output('Aborted.')
def obtain_entity_to_add(self):
pass
@staticmethod
def print_header():
output('\n== MINICLOUD v1.0 ==\n\n')
@staticmethod
def end_program():
output('Thanks for using MiniCloud.\n'
'Enjoy your day.')