def get_cloud_driver_context(self, cloud_manager):
if cloud_manager:
if cloud_manager.name not in self.driver_contexts:
if cloud_manager.type.lower() == "openstack":
_("... Building context")
context = OSDriverContext(OSClient(cloud_manager.path, cloud_manager.username,
cloud_manager.tenant, cloud_manager.password))
__()
elif cloud_manager.type.lower() == "stub":
context = StubDriverContext()
else:
error('%s type of CLOUD MANAGER IS UNKNOWN!', cloud_manager.type)
raise IntegrityException
if context.authenticated():
self.driver_contexts[cloud_manager.name] = context
self.cloud_manager.set_authenticated(cloud_manager.name)
else:
self.driver_contexts[cloud_manager.name] = None
self.cloud_manager.set_authenticated(cloud_manager.name, False)
output()
warn('Cloud manager %s failed authentication.', cloud_manager.name)
return self.driver_contexts[cloud_manager.name]
else:
error('No driver found for None cloud manager')
raise IntegrityException
def check_instance_is_ready(self, instance):
active = self.manager.check_status(instance, 'BUILD', negative_check=True)
if not active:
output('Waiting for instance to be active...')
while not active:
time.sleep(1)
active = self.manager.check_status(instance, 'BUILD', negative_check=True)
return True
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 check_for_remove(self, network):
if network.external:
error('You can\'t delete this network as it is external.')
return False
else:
routers = self.manager.get_routers(network)
if routers:
output('The network is attached to router %s. Detaching it.', routers[0].name)
self.detach(network)
return True
def topologize(self):
try:
s, n = self.get_topology(6 * ' ')
new_line()
if n:
output_no_newline(s)
else:
output('There is no topology to show.')
except MiniCloudException:
error('Failed to topologize.')
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 remove(self):
output()
output('Please enter the name of the %s you would like to remove.', self.entity_name)
try:
if self.remove_entity():
output('%s removed.', self.entity_name.title())
else:
output('No %s removed.', self.entity_name)
except DoesNotExistException:
output('No %s removed.', self.entity_name)
except IntegrityException:
error('You can\'t remove this %s as it breaks data integrity.', self.entity_name)
except InUseException:
error('You can\'t remove this %s as it is in use.', self.entity_name)
except MiniCloudException:
error('Removing the %s failed.', self.entity_name)
def add(self):
output()
output('Please enter the data of the %s you would like to add.', self.entity_name)
try:
if self.add_entity():
output('%s added.', self.entity_name.title())
else:
output('No %s added.', self.entity_name)
except IntegrityException:
error('You can\'t add this %s as it breaks data integrity.', self.entity_name)
except MiniCloudException:
error('Adding the %s failed', self.entity_name)
def make_network_routable(self, network):
router = None
if self.router_manager.list() and boolean_input('Do you want to attach to existing router'):
router = self.obtain_entity_from_manager(
self.router_manager,
'Please enter the name of the router to attach to',
skip_questioning_if_only_one_entity=True)
elif boolean_input('Do you want to create a router'):
name = string_input('Name')
output('Creating router.')
router = Router(name, cloud_manager=network.cloud_manager)
self.router_manager.add(router)
if router:
output('Attaching network.')
self.network_manager.attach_network_to_router(network, router)
return router
def obtain_entity_name(self, manager=None, input_string=None, filter_f=None, choose_from_display=False,
allow_none=False, skip_questioning_if_only_one_entity=False,
return_immediately_if_no_entity=False):
name = None
if not manager:
manager = self.manager
if not input_string:
input_string = manager.entity_title() + ' name'
if choose_from_display:
output() # skip line first, is nicer
names = manager.list_entity_names(filter_f)
if names and choose_from_display:
name_idx = choice_input_list(input_string, names, add_none=allow_none,
zero_based_return=True, skip_line=False)
if name_idx == len(names):
return None
else:
return names[name_idx]
else:
if not names:
if return_immediately_if_no_entity:
return None
else:
def_name = 'none'
elif len(names) == 1:
if skip_questioning_if_only_one_entity:
return names[0]
else:
def_name = names[0]
else:
def_name = 'show'
while True:
name = string_input(input_string, default=def_name)
if name == 'show':
if len(name) > 0:
for n in names:
print n
output('or give \'none\' to return.')
else:
output('Nothing to show.')
elif name == 'none':
return None
else:
if name in names:
break
else:
output('%s is not a valid %s, pls re-enter or give \'none\'.', (name, manager.entity_name()))
return name
def make_instance_routable(self, instance):
fip = self.manager.get_instance_fip(instance)
if fip:
output('The instance is already routable as %s', fip)
return fip
network = self.manager.get_instance_network(instance)
routers = self.network_manager.get_routers(network)
if routers:
router = routers[0]
else:
output('The instance\'s network (\'' + network.name + '\') has no router attached to it.')
router = self.make_network_routable(network)
if not router:
return None
external_networks = self.network_manager.external_networks(router)
if not external_networks:
if not self.network_manager.external_networks():
error('You unfortunately have no external networks')
if boolean_input('Do you want to create an external network'):
new_name = string_input('Please enter the network name')
new_cidr = '169.169.10.0/24' # fixed for now
external_network = Network(new_name, new_cidr, True, router, instance.cloud_manager)
self.network_manager.add(external_network)
else:
return None
external_network = self.obtain_entity_from_manager(
self.network_manager,
'Please enter the name of the external network you want to route from',
self.network_manager.external,
skip_questioning_if_only_one_entity=True)
if external_network:
output('Uplinking router.')
self.router_manager.uplink(router, external_network)
elif len(external_networks) == 1:
external_network = external_networks[0]
else:
output('\nWhich network do you want to make the instance routable to?')
network_idx = self.network_manager.obtain_entity_name(filter=self.network_manager.external)
external_network = external_networks[network_idx]
if external_network and self.check_instance_is_ready(instance):
fip = self.manager.make_routable(instance, external_network)
return fip
def connect_to_instance(self, instance, username, password):
fip = self.get_instance_fip(instance)
if fip is None:
error('Instance %s has no FIP allocated to.' % instance.name)
raise IntegrityException
try_c = 1
while try_c >= 0:
try:
ssh_client = SSHClient()
ssh_client.set_missing_host_key_policy(AutoAddPolicy())
ssh_client.connect(fip, username=username, password=password)
return
except Exception as e:
if try_c:
output('Retrying...')
try_c -= 1
else:
error('SSH error connecting to instance %s: %s', instance.name, e)
error('There may be a Security Group constraint?')
raise MiniCloudException
def make_routable(self):
output('\nPlease enter the name of the instance you would like to make routable')
try:
instance = self.obtain_entity(filter_f=self.is_active_and_not_routable)
if instance:
fip = self.make_instance_routable(instance)
if fip:
output('%s is publicly routable via %s', instance.name, fip)
return
output('No instance made routable.')
except DoesNotExistException:
output('Invalid instance')
except MiniCloudException:
error('Making instance routable failed.')
def list(self, deep_list=False):
try:
print
all_e = self.manager.list(deep_list)
if not all_e:
output('You currently have no %ss provisioned.', self.entity_name)
else:
output('You currently have %d %s%s provisioned:',
len(all_e), self.entity_name, 's' if len(all_e) > 1 else '')
for e in all_e:
output(e)
except MiniCloudException:
error('List failed.')
def public_ips(self):
try:
ext_net = self.obtain_entity(
'which external network do you want to see listed', self.manager.external)
if ext_net:
output('\nPublic IP\'s:')
fips = self.manager.get_floating_ips(ext_net)
for fip in fips:
fip_ip = fip['floating_ip_address']
fixed_ip = fip['fixed_ip_address']
if fixed_ip:
instance = self.instance_manager.get_instance_by_ip(fixed_ip)
output('%s\tin use by \'%s\'', fip_ip, instance.name)
else:
output('%s\tfree', fip_ip)
except MiniCloudException:
error('Listing public IPs failed.')
def detach(self, network=None):
try:
if network is None:
network = self.obtain_entity(
'\nWhich network would you like to detach', self.manager.non_external)
if network:
routers = self.manager.get_routers(network)
if len(routers) == 1:
self.manager.detach_network_from_router(network, routers[0])
output('Network detached.')
return
elif len(routers) > 1:
error('Multiple routers detected which is not implemented yet, sorry.')
else:
error('Can\'t detach as there is no router attached.')
output('No network detached.')
except DoesNotExistException:
output('No network detached.')
except MiniCloudException:
error('Detaching the network failed.')
def attach(self):
try:
network = self.obtain_entity(
'\nWhich network would you like to attach', self.manager.non_external)
if network:
router = self.obtain_entity_from_manager(
self.router_manager,
'Please enter the name of the router to attach to', skip_questioning_if_only_one_entity=True)
if router:
if router in self.manager.get_routers(network):
error('This network is already attached to router %s.', router.name)
else:
self.manager.attach_network_to_router(network, router)
output('Network attached.')
return
output('No network attached.')
except DoesNotExistException:
output('No network attached.')
except MiniCloudException:
error('Attaching the network failed.')
def print_header():
output('\n== MINICLOUD v1.0 ==\n\n')
def connect(self):
output('\nPlease enter the name of the instance you would like to connect to.')
try:
fip = None
instance = self.obtain_entity(filter_f=self.is_active)
if instance:
fip = self.manager.get_instance_fip(instance)
if fip is None:
if boolean_input('This instance is not publicly routable yet.\n'
'Do you want to make it routable'):
fip = self.make_instance_routable(instance)
if fip is None:
output('No instance connected to.')
return
output('%s is publicly routable via %s', instance.name, fip)
output()
suggested_username, suggested_password = self.get_suggested_instance_credentials(instance)
output('Connecting to %s...', fip)
username = string_input('Username', default=suggested_username)
password = string_input('Password', default=suggested_password)
# connect
self.manager.connect_to_instance(instance, username, password)
output()
output('Successfully established a connection.\n'
'Returning to MiniCloud now.')
except DoesNotExistException:
output('No instance connected to.')
except MiniCloudException:
error('Connecting to the instance failed.')
def end_program():
output('Thanks for using MiniCloud.\n'
'Enjoy your day.')
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 check_active(self, instance):
if not self.is_active(instance):
output('%s is in %s state, cannot proceed.', instance.name, instance.status)
return False
else:
return True
def update(self):
if not self.update_supported():
output('Not supported, sorry')
return
# else
output()
output('Please enter the name of the %s you would like to update.', self.entity_name)
try:
if self.update_entity():
output('%s updated.', self.entity_name.title())
else:
output('No %s updated.', self.entity_name)
except DoesNotExistException:
output('No %s updated.', self.entity_name)
except IntegrityException:
error('You can\'t update this %s as it breaks data integrity.', self.entity_name)
except MiniCloudException:
error('Updating the %s failed.', self.entity_name)
def add_entity(self):
name = string_input('Name')
cluster_name = self.obtain_entity_name(self.cluster_manager, choose_from_display=True, allow_none=True)
flavor = self.obtain_entity_from_manager(
self.manager.flavor_manager,
'Which flavor do you want to boot?',
choose_from_display=True, return_immediately_if_no_entity=True)
if not flavor:
error('No flavor found.')
return None
image = self.obtain_entity_from_manager(
self.manager.image_manager,
'Which image do you want to boot?',
choose_from_display=True, return_immediately_if_no_entity=True)
if not image:
error('No image found.')
return None
output('\nScanning security groups.')
nova_sgs = self.manager.nova_sg_manager.list()
public_ssh_sg = None
for sg in nova_sgs:
if sg.name == "public_ssh":
public_ssh_sg = sg
break
if not public_ssh_sg and boolean_input("No public_ssh security group was found. Would you like to create it"):
sg = NovaSg('public_ssh', 'sg for ssh access', self.manager.get_cloud_manager(cluster_name))
sg.add_rule(NovaSgRule('tcp', 22, 22, '0.0.0.0/0'))
self.manager.nova_sg_manager.add(sg)
nova_sg = self.obtain_entity_from_manager(
self.manager.nova_sg_manager,
'Which nova security group do you want to boot with?',
choose_from_display=True, return_immediately_if_no_entity=True)
if not nova_sg:
error('No Nova Security Group found.')
return None
network = self.obtain_entity_from_manager(
self.network_manager,
'Which network do you want to boot in?',
self.network_manager.non_external,
choose_from_display=True, return_immediately_if_no_entity=True)
if not network:
error('No network found.')
return None
make_routable = boolean_input('\nDo you want this instance to be routable')
output()
instance = Instance(name, cluster_name, flavor, image, nova_sg, network)
self.manager.add(instance)
if make_routable:
fip = self.make_instance_routable(instance)
if fip:
output('Instance is routable as %s.', fip)
return instance
def reset(self):
output('Reset\'ing.')
self.manager.reset()
self.first_topology = True
output('Done.')
