blob: dce26aa2eb4591f6bdc07fe8eddcab5f3bba1013 [file] [log] [blame]
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
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):
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:
#self.sync_roles()
self.sync_tenants()
self.sync_users()
self.sync_user_tenant_roles()
self.sync_slivers()
self.sync_sliver_ips()
self.sync_external_routes()
self.wait_for_event(timeout=30)
except:
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)