blob: 431623d1d286e2d7fd91efa8ac1ab7a37ffcb17c [file] [log] [blame]
import os
import base64
from django.db.models import F, Q
from planetstack.config import Config
from observer.openstacksyncstep import OpenStackSyncStep
class GarbageCollector(OpenStackSyncStep):
requested_interval = 86400
provides=[]
def call(self):
try:
logger.info('gc start')
#self.sync_roles()
self.gc_tenants()
self.gc_users()
self.gc_user_tenant_roles()
self.gc_slivers()
self.gc_sliver_ips()
self.gc_external_routes()
except:
traceback.print_exc()
def gc_roles(self):
"""
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.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]
# 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 gc_tenants(self):
"""
Remove sites and slices that no don't exist in openstack db if they
have an enacted time (enacted != None).
"""
# 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.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.driver.delete_tenant(tenant.id)
logger.info("deleted tenant: %s" % (tenant))
except:
logger.log_exc("delete tenant failed: %s" % tenant)
def gc_users(self):
"""
Remove users that no don't exist in openstack db if they have an
enacted time (enacted != None).
"""
# 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.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 gc_user_tenant_roles(self):
"""
Remove roles that don't exist in openstack db if they have
an enacted time (enacted != None).
"""
# 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.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 gc_slivers(self):
"""
Remove slivers that no don't exist in openstack db if they have
an enacted time (enacted != None).
"""
# 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.driver.shell.nova_db.ctx
instances = self.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.driver.shell.keystone.tenants.find(id=instance.project_id)
driver = self.driver.client_driver(tenant=tenant.name)
driver.destroy_instance(instance.uuid)
logger.info("destroyed sliver: %s" % (instance))
except:
logger.log_exc("destroy sliver failed: %s" % instance)
def gc_sliver_ips(self):
"""
Update ips that have changed.
"""
# 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 ips and sliver.ip != ips[0]['addr']:
sliver.ip = ips[0]['addr']
sliver.save()
logger.info("updated sliver ip: %s %s" % (sliver, ips[0]))
def gc_external_routes(self):
pass