| import time |
| import traceback |
| import commands |
| import threading |
| |
| from datetime import datetime |
| from collections import defaultdict |
| from core.models import * |
| from django.db.models import F, Q |
| from openstack.manager import OpenStackManager |
| from util.logger import Logger, logging, logger |
| #from timeout import timeout |
| |
| |
| logger = Logger(logfile='observer.log', level=logging.INFO) |
| |
| class OpenStackObserver: |
| |
| def __init__(self): |
| self.manager = OpenStackManager() |
| # The Condition object that gets signalled by Feefie events |
| self.event_cond = threading.Condition() |
| |
| def wait_for_event(self, timeout): |
| self.event_cond.acquire() |
| self.event_cond.wait(timeout) |
| self.event_cond.release() |
| |
| def wake_up(self): |
| logger.info('Wake up routine called. Event cond %r'%self.event_cond) |
| self.event_cond.acquire() |
| self.event_cond.notify() |
| self.event_cond.release() |
| |
| def run(self): |
| if not self.manager.enabled or not self.manager.has_openstack: |
| return |
| while True: |
| try: |
| logger.info('Observer run loop') |
| #self.sync_roles() |
| |
| logger.info('Calling sync tenants') |
| try: |
| self.sync_tenants() |
| except: |
| logger.log_exc("Exception in sync_tenants") |
| traceback.print_exc() |
| |
| logger.info('Calling sync users') |
| try: |
| self.sync_users() |
| except: |
| logger.log_exc("Exception in sync_users") |
| traceback.print_exc() |
| |
| logger.info('Calling sync tenant roles') |
| try: |
| self.sync_user_tenant_roles() |
| except: |
| logger.log_exc("Exception in sync_users") |
| traceback.print_exc() |
| |
| logger.info('Calling sync slivers') |
| try: |
| self.sync_slivers() |
| except: |
| logger.log_exc("Exception in sync slivers") |
| traceback.print_exc() |
| |
| logger.info('Calling sync sliver ips') |
| try: |
| self.sync_sliver_ips() |
| except: |
| logger.log_exc("Exception in sync_sliver_ips") |
| traceback.print_exc() |
| |
| logger.info('Calling sync networks') |
| try: |
| self.sync_networks() |
| except: |
| logger.log_exc("Exception in sync_networks") |
| traceback.print_exc() |
| |
| logger.info('Calling sync external routes') |
| try: |
| self.sync_external_routes() |
| except: |
| logger.log_exc("Exception in sync_external_routes") |
| traceback.print_exc() |
| |
| logger.info('Waiting for event') |
| tBeforeWait = time.time() |
| self.wait_for_event(timeout=300) |
| |
| # Enforce 5 minutes between wakeups |
| tSleep = 300 - (time.time() - tBeforeWait) |
| if tSleep > 0: |
| logger.info('Sleeping for %d seconds' % tSleep) |
| time.sleep(tSleep) |
| |
| logger.info('Observer woken up') |
| except: |
| logger.log_exc("Exception in observer run loop") |
| traceback.print_exc() |
| |
| def sync_roles(self): |
| """ |
| save all role that don't already exist in keystone. Remove keystone roles that |
| don't exist in planetstack |
| """ |
| # sync all roles that don't already in keystone |
| keystone_roles = self.manager.driver.shell.keystone.roles.findall() |
| keystone_role_names = [kr.name for kr in keystone_roles] |
| pending_roles = Role.objects.all() |
| pending_role_names = [r.role_type for r in pending_roles] |
| for role in pending_roles: |
| if role.role_type not in keystone_role_names: |
| try: |
| self.manager.save_role(role) |
| logger.info("save role: %s" % (role)) |
| except: |
| logger.log_exc("save role failed: %s" % role) |
| traceback.print_exc() |
| |
| # don't delete roles for now |
| """ |
| # delete keystone roles that don't exist in planetstack |
| for keystone_role in keystone_roles: |
| if keystone_role.name == 'admin': |
| continue |
| if keystone_role.name not in pending_role_names: |
| try: |
| self.manager.driver.delete_role({id: keystone_role.id}) |
| except: |
| traceback.print_exc() |
| """ |
| |
| def sync_tenants(self): |
| """ |
| Save all sites and sliceswhere enacted < updated or enacted == None. |
| Remove sites and slices that no don't exist in openstack db if they |
| have an enacted time (enacted != None). |
| """ |
| # get all sites that need to be synced (enacted < updated or enacted is None) |
| pending_sites = Site.objects.filter(Q(enacted__lt=F('updated')) | Q(enacted=None)) |
| for site in pending_sites: |
| try: |
| self.manager.save_site(site) |
| logger.info("saved site %s" % site) |
| except: |
| logger.log_exc("save site failed: %s" % site) |
| |
| # get all slices that need to be synced (enacted < updated or enacted is None) |
| pending_slices = Slice.objects.filter(Q(enacted__lt=F('updated')) | Q(enacted=None)) |
| for slice in pending_slices: |
| try: |
| self.manager.init_caller(slice.creator, slice.creator.site.login_base) |
| self.manager.save_slice(slice) |
| logger.info("saved slice %s" % slice) |
| except: |
| logger.log_exc("save slice failed: %s" % slice) |
| |
| # get all sites that where enacted != null. We can assume these sites |
| # have previously been synced and need to be checed for deletion. |
| sites = Site.objects.filter(enacted__isnull=False) |
| site_dict = {} |
| for site in sites: |
| site_dict[site.login_base] = site |
| |
| # get all slices that where enacted != null. We can assume these slices |
| # have previously been synced and need to be checed for deletion. |
| slices = Slice.objects.filter(enacted__isnull=False) |
| slice_dict = {} |
| for slice in slices: |
| slice_dict[slice.name] = slice |
| |
| # delete keystone tenants that don't have a site record |
| tenants = self.manager.driver.shell.keystone.tenants.findall() |
| system_tenants = ['admin','service'] |
| for tenant in tenants: |
| if tenant.name in system_tenants: |
| continue |
| if tenant.name not in site_dict and tenant.name not in slice_dict: |
| try: |
| self.manager.driver.delete_tenant(tenant.id) |
| logger.info("deleted tenant: %s" % (tenant)) |
| except: |
| logger.log_exc("delete tenant failed: %s" % tenant) |
| |
| |
| def sync_users(self): |
| """ |
| save all users where enacted < updated or enacted == None. Remove users that |
| no don't exist in openstack db if they have an enacted time (enacted != None). |
| """ |
| # get all users that need to be synced (enacted < updated or enacted is None) |
| pending_users = User.objects.filter(Q(enacted__lt=F('updated')) | Q(enacted=None)) |
| for user in pending_users: |
| try: |
| self.manager.save_user(user) |
| logger.info("saved user: %s" % (user)) |
| except: |
| logger.log_exc("save user failed: %s" %user) |
| |
| # get all users that where enacted != null. We can assume these users |
| # have previously been synced and need to be checed for deletion. |
| users = User.objects.filter(enacted__isnull=False) |
| user_dict = {} |
| for user in users: |
| user_dict[user.kuser_id] = user |
| |
| # delete keystone users that don't have a user record |
| system_users = ['admin', 'nova', 'quantum', 'glance', 'cinder', 'swift', 'service'] |
| users = self.manager.driver.shell.keystone.users.findall() |
| for user in users: |
| if user.name in system_users: |
| continue |
| if user.id not in user_dict: |
| try: |
| #self.manager.driver.delete_user(user.id) |
| logger.info("deleted user: %s" % user) |
| except: |
| logger.log_exc("delete user failed: %s" % user) |
| |
| |
| def sync_user_tenant_roles(self): |
| """ |
| Save all site privileges and slice memberships wheree enacted < updated or |
| enacted == None. Remove ones that don't exist in openstack db if they have |
| an enacted time (enacted != None). |
| """ |
| # sync site privileges |
| pending_site_privileges = SitePrivilege.objects.filter(Q(enacted__lt=F('updated')) | Q(enacted=None)) |
| for site_priv in pending_site_privileges: |
| try: |
| self.manager.save_site_privilege(site_priv) |
| logger.info("saved site privilege: %s" % (site_priv)) |
| except: logger.log_exc("save site privilege failed: %s " % site_priv) |
| |
| # sync slice memberships |
| pending_slice_memberships = SliceMembership.objects.filter(Q(enacted__lt=F('updated')) | Q(enacted=None)) |
| for slice_memb in pending_slice_memberships: |
| try: |
| self.manager.save_slice_membership(slice_memb) |
| logger.info("saved slice membership: %s" % (slice_memb)) |
| except: logger.log_exc("save slice membership failed: %s" % slice_memb) |
| |
| # get all site privileges and slice memberships that have been enacted |
| user_tenant_roles = defaultdict(list) |
| for site_priv in SitePrivilege.objects.filter(enacted__isnull=False): |
| user_tenant_roles[(site_priv.user.kuser_id, site_priv.site.tenant_id)].append(site_priv.role.role) |
| for slice_memb in SliceMembership.objects.filter(enacted__isnull=False): |
| user_tenant_roles[(slice_memb.user.kuser_id, slice_memb.slice.tenant_id)].append(slice_memb.role.role) |
| |
| # Some user tenant role aren't stored in planetstack but they must be preserved. |
| # Role that fall in this category are |
| # 1. Never remove a user's role that their home site |
| # 2. Never remove a user's role at a slice they've created. |
| # Keep track of all roles that must be preserved. |
| users = User.objects.all() |
| preserved_roles = {} |
| for user in users: |
| tenant_ids = [s['tenant_id'] for s in user.slices.values()] |
| tenant_ids.append(user.site.tenant_id) |
| preserved_roles[user.kuser_id] = tenant_ids |
| |
| |
| # begin removing user tenant roles from keystone. This is stored in the |
| # Metadata table. |
| for metadata in self.manager.driver.shell.keystone_db.get_metadata(): |
| # skip admin roles |
| if metadata.user_id == self.manager.driver.admin_user.id: |
| continue |
| # skip preserved tenant ids |
| if metadata.user_id in preserved_roles and \ |
| metadata.tenant_id in preserved_roles[metadata.user_id]: |
| continue |
| # get roles for user at this tenant |
| user_tenant_role_ids = user_tenant_roles.get((metadata.user_id, metadata.tenant_id), []) |
| |
| if user_tenant_role_ids: |
| # The user has roles at the tenant. Check if roles need to |
| # be updated. |
| user_keystone_role_ids = metadata.data.get('roles', []) |
| for role_id in user_keystone_role_ids: |
| if role_id not in user_tenant_role_ids: |
| user_keystone_role_ids.pop(user_keystone_role_ids.index(role_id)) |
| else: |
| # The user has no roles at this tenant. |
| metadata.data['roles'] = [] |
| #session.add(metadata) |
| logger.info("pruning metadata for %s at %s" % (metadata.user_id, metadata.tenant_id)) |
| |
| def sync_slivers(self): |
| """ |
| save all slivers where enacted < updated or enacted == None. Remove slivers that |
| no don't exist in openstack db if they have an enacted time (enacted != None). |
| """ |
| # get all users that need to be synced (enacted < updated or enacted is None) |
| pending_slivers = Sliver.objects.filter(Q(enacted__lt=F('updated')) | Q(enacted=None)) |
| for sliver in pending_slivers: |
| if sliver.creator: |
| try: |
| # update manager context |
| self.manager.init_caller(sliver.creator, sliver.slice.name) |
| self.manager.save_sliver(sliver) |
| logger.info("saved sliver: %s" % (sliver)) |
| except: |
| logger.log_exc("save sliver failed: %s" % sliver) |
| |
| # get all slivers where enacted != null. We can assume these users |
| # have previously been synced and need to be checed for deletion. |
| slivers = Sliver.objects.filter(enacted__isnull=False) |
| sliver_dict = {} |
| for sliver in slivers: |
| sliver_dict[sliver.instance_id] = sliver |
| |
| # delete sliver that don't have a sliver record |
| ctx = self.manager.driver.shell.nova_db.ctx |
| instances = self.manager.driver.shell.nova_db.instance_get_all(ctx) |
| for instance in instances: |
| if instance.uuid not in sliver_dict: |
| try: |
| # lookup tenant and update context |
| tenant = self.manager.driver.shell.keystone.tenants.find(id=instance.project_id) |
| self.manager.init_admin(tenant=tenant.name) |
| self.manager.driver.destroy_instance(instance.uuid) |
| logger.info("destroyed sliver: %s" % (instance)) |
| except: |
| logger.log_exc("destroy sliver failed: %s" % instance) |
| |
| |
| def sync_sliver_ips(self): |
| # fill in null ip addresses |
| slivers = Sliver.objects.filter(ip=None) |
| for sliver in slivers: |
| # update connection |
| self.manager.init_admin(tenant=sliver.slice.name) |
| servers = self.manager.driver.shell.nova.servers.findall(id=sliver.instance_id) |
| if not servers: |
| continue |
| server = servers[0] |
| ips = server.addresses.get(sliver.slice.name, []) |
| if not ips: |
| continue |
| sliver.ip = ips[0]['addr'] |
| sliver.save() |
| logger.info("saved sliver ip: %s %s" % (sliver, ips[0])) |
| |
| def sync_external_routes(self): |
| routes = self.manager.driver.get_external_routes() |
| subnets = self.manager.driver.shell.quantum.list_subnets()['subnets'] |
| for subnet in subnets: |
| try: |
| self.manager.driver.add_external_route(subnet, routes) |
| except: |
| logger.log_exc("failed to add external route for subnet %s" % subnet) |
| |
| def sync_networks(self): |
| """ |
| save all networks where enacted < updated or enacted == None. Remove networks that |
| no don't exist in openstack db if they have an enacted time (enacted != None). |
| """ |
| # get all users that need to be synced (enacted < updated or enacted is None) |
| pending_networks = Network.objects.filter(Q(enacted__lt=F('updated')) | Q(enacted=None)) |
| for network in pending_networks: |
| if network.owner and network.owner.creator: |
| try: |
| # update manager context |
| self.manager.init_caller(network.owner.creator, network.owner.name) |
| self.manager.save_network(network) |
| logger.info("saved network: %s" % (network)) |
| except: |
| logger.log_exc("save network failed: %s" % network) |
| |
| # get all networks where enacted != null. We can assume these users |
| # have previously been synced and need to be checed for deletion. |
| networks = Network.objects.filter(enacted__isnull=False) |
| network_dict = {} |
| for network in networks: |
| network_dict[network.network_id] = network |
| |
| # TODO: delete Network objects if quantum network doesn't exist |
| # (need to write self.manager.driver.shell.quantum_db) |
| |