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import keystoneclient.v2_0.client as ksclient
import quantumclient.quantum.client as qclient
import novaclient.client as nclient
import settings
import pymongo
import sys
import os
import fcntl
##########################################################
def create_project(project_name):
return kc.tenants.create(tenant_name=project_name)
def get_project_by_name(project_name):
return kc.users.find(name=username)
def get_user_by_name(username):
return kc.users.find(name=username)
def create_network(network_name, tenant_name):
net = {'name': network_name, 'admin_state_up': True, 'tenant_id': getattr(kc.tenants.find(name=tenant_name), 'id')}
network = qc.create_network({'network': net})
sub = {'name': network_name + "-subnet", 'cidr': '0.0.0.0/24', 'network_id': network['network']['id'], 'ip_version': 4, 'enable_dhcp': False, 'gateway_ip': None}
subnet = qc.create_subnet({'subnet': sub})
return network
def get_nova_client(tenant_name):
return nclient.Client("1.1", username=settings.OS_ADMIN_USER, api_key=settings.OS_ADMIN_PASS, auth_url=settings.OS_AUTH_URL, project_id=tenant_name)
def get_quantum_client(tenant_name):
kcsub = ksclient.Client(auth_url=settings.OS_AUTH_URL, username=settings.OS_ADMIN_USER, password=settings.OS_ADMIN_PASS, tenant_name=tenant_name)
client = qclient.Client('2.0', endpoint_url=settings.OS_QUANTUM_URL, token=kcsub.auth_token)
client.format = 'json'
return client
##########################################################
kc = ksclient.Client(endpoint=settings.OS_ADMIN_AUTH_URL, token=settings.OS_ADMIN_TOKEN)
member_role = kc.roles.find(name='Member')
db = pymongo.MongoClient(settings.DB_HOST).kpov
try:
db.authenticate(settings.USERNAME, settings.PASSWORD)
except Exception, e:
print str(e)
#no auth or auth config?
l = db.student_tasks.find({'create_openstack': True})
projects = list()
for project in l:
task_id, student_id = project['task_id'], project['student_id']
if (task_id, student_id) not in projects:
projects.append((task_id, student_id))
#projects = [ ('01.predvaja','at9036@student.uni-lj.si'), ('01.predvaja', 'andrejtolic@fri1.uni-lj.si') ]
for task_id, student_id in projects:
l = db.student_tasks.find_one({'task_id': task_id, 'student_id': student_id, "create_openstack": True})
if l is None:
continue
lock_file = os.path.join(settings.OS_LOCKFILE_PATH, '{0}-{1}.lock'.format(student_id, task_id))
lock_fp = open(lock_file, 'w')
try:
fcntl.lockf(lock_fp, fcntl.LOCK_EX | fcntl.LOCK_NB)
except IOError:
continue
# Ustvarimo projekt
project_name = "{0}-{1}".format(student_id, task_id)
project = create_project(project_name=project_name)
lock_fp.write("Created project {0}.\n".format(project_name))
# Dodamo admin uporabnika v projekt
kc.roles.add_user_role(get_user_by_name('admin'), admin_role, project)
lock_fp.write("Added user admin to project {0}.\n".format(project_name))
# Ustvarimo L2 omrezja
qc = get_quantum_client(tenant_name=project_name)
network_list = db.networks.find({'task_id': task_id})
nets = []
for n in network_list:
net = create_network(network_name=n['name'], tenant_name=project_name)
lock_fp.write("Created network {0}.".format(n['name']))
nets.append( (n['name'], {'net-id': net['network']['id']}) )
db.student_networks.update({'task_id': task_id, 'student_id': student_id, 'name': n['name']}, {'$set': {'network_id': net['network']['id'], 'public': n['public']}}, upsert=True)
#Ustvarimo instance
instance_list = db.computers_meta.find({'task_id': task_id})
nc = get_nova_client(tenant_name=project_name)
first_instance_in_project = True
for inst in instance_list:
image = nc.images.find(name=inst['image'])
flavor = nc.flavors.find(name=inst['flavor'])
instance_net_names = inst['networks']
instance_nets = [net[1] for net in nets if net[0] in instance_net_names]
if inst['config_drive']:
if 'string' in inst['userdata'].keys():
udata = inst['userdata']['string']
elif 'file' in inst['userdata'].keys():
try:
udata = open(inst['userdata']['file'], 'r')
except:
udata = None
lock_fp.write("Problem reading file {0} for config drive. Using None instead.".format(inst['userdata']['file']))
else:
udata = None
if first_instance_in_project:
scheduler_hints = None
first_instance_in_project = False
else:
s = db.student_computers.find_one({'task_id': task_id, 'student_id': student_id, 'name': inst['name']})
# Value corresponding to the 'same_host' key is a list (with just one element)
# of instances besides which to put the new instance.
scheduler_hints = {'same_host': [s['openstack_instance_id']] }
instance = nc.servers.create(name=project_name + "-" + inst['name'], image=image, flavor=flavor, nics=instance_nets, config_drive=inst['config_drive'], userdata=udata, scheduler_hints=scheduler_hints)
lock_fp.write("Created instance for computer {0}.".format(inst['name']))
# Write openstack instance id to mongo.
db.student_computers.update({'task_id': task_id, 'student_id': student_id, 'name': inst['name']}, {'$set': {'openstack_instance_id': instance['id'], 'openstack_host': instance['OS-EXT-SRV-ATTR:host'], 'openstack_finalized': False}, upsert=True)
# instance['status'] lahko BUILD, ACTIVE ali SHUTOFF
# instance = nova.servers.get(instance['id'])
db.student_tasks.update({'task_id': task_id, 'student_id': student_id}, {'$set': {'create_openstack': False, 'openstack_created': True}})
os.unlink(lock_file)
lock_fp.close()
# TODO v loceni skripti.
# povezi test-net na brarbiters, po izklopu instanc guestfs nad diski in create_image.
# Dodamo studenta v projekt
kc.roles.add_user_role(get_user_by_name(student_id), member_role, project)
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