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def delete_subnet(context, id):
"""Delete a subnet.
: param context: neutron api request context
: param id: UUID representing the subnet to delete.
"""
LOG.info("delete_subnet %s for tenant %s" % (id, context.tenant_id))
with context.session.begin():
subnet = db_api.subnet_find(context, id=id, scope=db_api.ONE)
if not subnet:
raise n_exc.SubnetNotFound(subnet_id=id)
if not context.is_admin:
if STRATEGY.is_provider_network(subnet.network_id):
if subnet.tenant_id == context.tenant_id:
# A tenant can't delete subnets on provider network
raise n_exc.NotAuthorized(subnet_id=id)
else:
# Raise a NotFound here because the foreign tenant
# does not have to know about other tenant's subnet
# existence.
raise n_exc.SubnetNotFound(subnet_id=id)
_delete_subnet(context, subnet) |
def get_resources(cls):
"""Returns Ext Resources."""
plugin = directory.get_plugin()
controller = MacAddressRangesController(plugin)
return [extensions.ResourceExtension(Mac_address_ranges.get_alias(),
controller)] |
def _filter_update_security_group_rule(rule):
'''Only two fields are allowed for modification:
external_service and external_service_id
'''
allowed = ['external_service', 'external_service_id']
filtered = {}
for k, val in rule.iteritems():
if k in allowed:
if isinstance(val, basestring) and \
len(val) <= GROUP_NAME_MAX_LENGTH:
filtered[k] = val
return filtered |
def _perform_async_update_rule(context, id, db_sg_group, rule_id, action):
"""Updates a SG rule async and return the job information.
Only happens if the security group has associated ports. If the async
connection fails the update continues (legacy mode).
"""
rpc_reply = None
sg_rpc = sg_rpc_api.QuarkSGAsyncProcessClient()
ports = db_api.sg_gather_associated_ports(context, db_sg_group)
if len(ports) > 0:
rpc_reply = sg_rpc.start_update(context, id, rule_id, action)
if rpc_reply:
job_id = rpc_reply['job_id']
job_api.add_job_to_context(context, job_id)
else:
LOG.error("Async update failed. Is the worker running?") |
def create_security_group_rule(context, security_group_rule):
"""Creates a rule and updates the ports (async) if enabled."""
LOG.info("create_security_group for tenant %s" %
(context.tenant_id))
with context.session.begin():
rule = _validate_security_group_rule(
context, security_group_rule["security_group_rule"])
rule["id"] = uuidutils.generate_uuid()
group_id = rule["security_group_id"]
group = db_api.security_group_find(context, id=group_id,
scope=db_api.ONE)
if not group:
raise sg_ext.SecurityGroupNotFound(id=group_id)
quota.QUOTAS.limit_check(
context, context.tenant_id,
security_rules_per_group=len(group.get("rules", [])) + 1)
new_rule = db_api.security_group_rule_create(context, **rule)
if group:
_perform_async_update_rule(context, group_id, group, new_rule.id,
RULE_CREATE)
return v._make_security_group_rule_dict(new_rule) |
def update_security_group_rule(context, id, security_group_rule):
'''Updates a rule and updates the ports'''
LOG.info("update_security_group_rule for tenant %s" %
(context.tenant_id))
new_rule = security_group_rule["security_group_rule"]
# Only allow updatable fields
new_rule = _filter_update_security_group_rule(new_rule)
with context.session.begin():
rule = db_api.security_group_rule_find(context, id=id,
scope=db_api.ONE)
if not rule:
raise sg_ext.SecurityGroupRuleNotFound(id=id)
db_rule = db_api.security_group_rule_update(context, rule, **new_rule)
group_id = db_rule.group_id
group = db_api.security_group_find(context, id=group_id,
scope=db_api.ONE)
if not group:
raise sg_ext.SecurityGroupNotFound(id=group_id)
if group:
_perform_async_update_rule(context, group_id, group, rule.id,
RULE_UPDATE)
return v._make_security_group_rule_dict(db_rule) |
def delete_security_group_rule(context, id):
"""Deletes a rule and updates the ports (async) if enabled."""
LOG.info("delete_security_group %s for tenant %s" %
(id, context.tenant_id))
with context.session.begin():
rule = db_api.security_group_rule_find(context, id=id,
scope=db_api.ONE)
if not rule:
raise sg_ext.SecurityGroupRuleNotFound(id=id)
group = db_api.security_group_find(context, id=rule["group_id"],
scope=db_api.ONE)
if not group:
raise sg_ext.SecurityGroupNotFound(id=id)
rule["id"] = id
db_api.security_group_rule_delete(context, rule)
if group:
_perform_async_update_rule(context, group.id, group, id, RULE_DELETE) |
def get_data():
"""Returns combined list of tuples: [(table, column)].
List is built, based on retrieved tables, where column with name
``tenant_id`` exists.
"""
output = []
tables = get_tables()
for table in tables:
try:
columns = get_columns(table)
except sa.exc.NoSuchTableError:
continue
for column in columns:
if column['name'] == 'tenant_id':
output.append((table, column))
return output |
def get_public_net_id(self):
"""Returns the public net id"""
for id, net_params in self.strategy.iteritems():
if id == CONF.QUARK.public_net_id:
return id
return None |
def opt_args_decorator(func):
"""A decorator to be used on another decorator
This is done to allow separate handling on the basis of argument values
"""
@wraps(func)
def wrapped_dec(*args, **kwargs):
if len(args) == 1 and len(kwargs) == 0 and callable(args[0]):
# actual decorated function
return func(args[0])
else:
# decorator arguments
return lambda realf: func(realf, *args, **kwargs)
return wrapped_dec |
def _fix_missing_tenant_id(self, context, body, key):
"""Will add the tenant_id to the context from body.
It is assumed that the body must have a tenant_id because neutron
core could never have gotten here otherwise.
"""
if not body:
raise n_exc.BadRequest(resource=key,
msg="Body malformed")
resource = body.get(key)
if not resource:
raise n_exc.BadRequest(resource=key,
msg="Body malformed")
if context.tenant_id is None:
context.tenant_id = resource.get("tenant_id")
if context.tenant_id is None:
msg = _("Running without keystone AuthN requires "
"that tenant_id is specified")
raise n_exc.BadRequest(resource=key, msg=msg) |
def _validate_allocation_pools(self):
"""Validate IP allocation pools.
Verify start and end address for each allocation pool are valid,
ie: constituted by valid and appropriately ordered IP addresses.
Also, verify pools do not overlap among themselves.
Finally, verify that each range fall within the subnet's CIDR.
"""
ip_pools = self._alloc_pools
subnet_cidr = self._subnet_cidr
LOG.debug(_("Performing IP validity checks on allocation pools"))
ip_sets = []
for ip_pool in ip_pools:
try:
start_ip = netaddr.IPAddress(ip_pool['start'])
end_ip = netaddr.IPAddress(ip_pool['end'])
except netaddr.AddrFormatError:
LOG.info(_("Found invalid IP address in pool: "
"%(start)s - %(end)s:"),
{'start': ip_pool['start'],
'end': ip_pool['end']})
raise n_exc_ext.InvalidAllocationPool(pool=ip_pool)
if (start_ip.version != self._subnet_cidr.version or
end_ip.version != self._subnet_cidr.version):
LOG.info(_("Specified IP addresses do not match "
"the subnet IP version"))
raise n_exc_ext.InvalidAllocationPool(pool=ip_pool)
if end_ip < start_ip:
LOG.info(_("Start IP (%(start)s) is greater than end IP "
"(%(end)s)"),
{'start': ip_pool['start'], 'end': ip_pool['end']})
raise n_exc_ext.InvalidAllocationPool(pool=ip_pool)
if (start_ip < self._subnet_first_ip or
end_ip > self._subnet_last_ip):
LOG.info(_("Found pool larger than subnet "
"CIDR:%(start)s - %(end)s"),
{'start': ip_pool['start'],
'end': ip_pool['end']})
raise n_exc_ext.OutOfBoundsAllocationPool(
pool=ip_pool,
subnet_cidr=subnet_cidr)
# Valid allocation pool
# Create an IPSet for it for easily verifying overlaps
ip_sets.append(netaddr.IPSet(netaddr.IPRange(
ip_pool['start'],
ip_pool['end']).cidrs()))
LOG.debug(_("Checking for overlaps among allocation pools "
"and gateway ip"))
ip_ranges = ip_pools[:]
# Use integer cursors as an efficient way for implementing
# comparison and avoiding comparing the same pair twice
for l_cursor in xrange(len(ip_sets)):
for r_cursor in xrange(l_cursor + 1, len(ip_sets)):
if ip_sets[l_cursor] & ip_sets[r_cursor]:
l_range = ip_ranges[l_cursor]
r_range = ip_ranges[r_cursor]
LOG.info(_("Found overlapping ranges: %(l_range)s and "
"%(r_range)s"),
{'l_range': l_range, 'r_range': r_range})
raise n_exc_ext.OverlappingAllocationPools(
pool_1=l_range,
pool_2=r_range,
subnet_cidr=subnet_cidr) |
def add_job_to_context(context, job_id):
"""Adds job to neutron context for use later."""
db_job = db_api.async_transaction_find(
context, id=job_id, scope=db_api.ONE)
if not db_job:
return
context.async_job = {"job": v._make_job_dict(db_job)} |
def create_job(context, body):
"""Creates a job with support for subjobs.
If parent_id is not in the body:
* the job is considered a parent job
* it will have a NULL transaction id
* its transaction id == its id
* all subjobs will use its transaction id as theirs
Else:
* the job is a sub job
* the parent id is the id passed in
* the transaction id is the root of the job tree
"""
LOG.info("create_job for tenant %s" % context.tenant_id)
if not context.is_admin:
raise n_exc.NotAuthorized()
job = body.get('job')
if 'parent_id' in job:
parent_id = job['parent_id']
if not parent_id:
raise q_exc.JobNotFound(job_id=parent_id)
parent_job = db_api.async_transaction_find(
context, id=parent_id, scope=db_api.ONE)
if not parent_job:
raise q_exc.JobNotFound(job_id=parent_id)
tid = parent_id
if parent_job.get('transaction_id'):
tid = parent_job.get('transaction_id')
job['transaction_id'] = tid
if not job:
raise n_exc.BadRequest(resource="job", msg="Invalid request body.")
with context.session.begin(subtransactions=True):
new_job = db_api.async_transaction_create(context, **job)
return v._make_job_dict(new_job) |
def delete_job(context, id, **filters):
"""Delete an ip address.
: param context: neutron api request context
: param id: UUID representing the ip address to delete.
"""
LOG.info("delete_ip_address %s for tenant %s" % (id, context.tenant_id))
if not context.is_admin:
raise n_exc.NotAuthorized()
with context.session.begin():
job = db_api.async_transaction_find(context, id=id, scope=db_api.ONE,
**filters)
if not job:
raise q_exc.JobNotFound(job_id=id)
db_api.async_transaction_delete(context, job) |
def get_resources(cls):
"""Returns Ext Resources."""
plugin = directory.get_plugin()
controller = IPPoliciesController(plugin)
return [extensions.ResourceExtension(Ip_policies.get_alias(),
controller)] |
def _lswitch_select_open(self, context, switches=None, **kwargs):
"""Selects an open lswitch for a network.
Note that it does not select the most full switch, but merely one with
ports available.
"""
if switches is not None:
for res in switches["results"]:
count = res["_relations"]["LogicalSwitchStatus"]["lport_count"]
if (self.limits['max_ports_per_switch'] == 0 or
count < self.limits['max_ports_per_switch']):
return res["uuid"]
return None |
def _add_default_tz_bindings(self, context, switch, network_id):
"""Configure any additional default transport zone bindings."""
default_tz = CONF.NVP.default_tz
# If there is no default tz specified it's pointless to try
# and add any additional default tz bindings.
if not default_tz:
LOG.warn("additional_default_tz_types specified, "
"but no default_tz. Skipping "
"_add_default_tz_bindings().")
return
# This should never be called without a neutron network uuid,
# we require it to bind some segment allocations.
if not network_id:
LOG.warn("neutron network_id not specified, skipping "
"_add_default_tz_bindings()")
return
for net_type in CONF.NVP.additional_default_tz_types:
if net_type in TZ_BINDINGS:
binding = TZ_BINDINGS[net_type]
binding.add(context, switch, default_tz, network_id)
else:
LOG.warn("Unknown default tz type %s" % (net_type)) |
def _remove_default_tz_bindings(self, context, network_id):
"""Deconfigure any additional default transport zone bindings."""
default_tz = CONF.NVP.default_tz
if not default_tz:
LOG.warn("additional_default_tz_types specified, "
"but no default_tz. Skipping "
"_remove_default_tz_bindings().")
return
if not network_id:
LOG.warn("neutron network_id not specified, skipping "
"_remove_default_tz_bindings()")
return
for net_type in CONF.NVP.additional_default_tz_types:
if net_type in TZ_BINDINGS:
binding = TZ_BINDINGS[net_type]
binding.remove(context, default_tz, network_id)
else:
LOG.warn("Unknown default tz type %s" % (net_type)) |
def get_lswitch_ids_for_network(self, context, network_id):
"""Public interface for fetching lswitch ids for a given network.
NOTE(morgabra) This is here because calling private methods
from outside the class feels wrong, and we need to be able to
fetch lswitch ids for use in other drivers.
"""
lswitches = self._lswitches_for_network(context, network_id).results()
return [s['uuid'] for s in lswitches["results"]] |
def register_floating_ip(self, floating_ip, port_fixed_ips):
"""Register a floating ip with Unicorn
:param floating_ip: The quark.db.models.IPAddress to register
:param port_fixed_ips: A dictionary containing the port and fixed ips
to associate the floating IP with. Has the structure of:
{"<id of port>": {"port": <quark.db.models.Port>,
"fixed_ip": "<fixed ip address>"}}
:return: None
"""
url = CONF.QUARK.floating_ip_base_url
timeout = CONF.QUARK.unicorn_api_timeout_seconds
req = self._build_request_body(floating_ip, port_fixed_ips)
try:
LOG.info("Calling unicorn to register floating ip: %s %s"
% (url, req))
r = requests.post(url, data=json.dumps(req), timeout=timeout)
except Exception as e:
LOG.error("Unhandled Exception caught when trying to register "
"floating ip %s with the unicorn API. Error: %s"
% (floating_ip.id, e.message))
raise ex.RegisterFloatingIpFailure(id=floating_ip.id)
if r.status_code != 200 and r.status_code != 201:
msg = "Unexpected status from unicorn API: Status Code %s, " \
"Message: %s" % (r.status_code, r.json())
LOG.error("register_floating_ip: %s" % msg)
raise ex.RegisterFloatingIpFailure(id=floating_ip.id) |
def remove_floating_ip(self, floating_ip):
"""Register a floating ip with Unicorn
:param floating_ip: The quark.db.models.IPAddress to remove
:return: None
"""
url = "%s/%s" % (CONF.QUARK.floating_ip_base_url,
floating_ip.address_readable)
timeout = CONF.QUARK.unicorn_api_timeout_seconds
try:
LOG.info("Calling unicorn to remove floating ip: %s" % url)
r = requests.delete(url, timeout=timeout)
except Exception as e:
LOG.error("Unhandled Exception caught when trying to un-register "
"floating ip %s with the unicorn API. Error: %s"
% (floating_ip.id, e.message))
raise ex.RemoveFloatingIpFailure(id=floating_ip.id)
if r.status_code == 404:
LOG.warn("The floating IP %s does not exist in the unicorn system."
% floating_ip.address_readable)
elif r.status_code != 204:
msg = "Unexpected status from unicorn API: Status Code %s, " \
"Message: %s" % (r.status_code, r.json())
LOG.error("remove_floating_ip: %s" % msg)
raise ex.RemoveFloatingIpFailure(id=floating_ip.id) |
def _load_worker_plugin_with_module(self, module, version):
"""Instantiates worker plugins that have requsite properties.
The required properties are:
* must have PLUGIN_EP entrypoint registered (or it wouldn't be in the
list)
* must have class attribute versions (list) of supported RPC versions
* must subclass QuarkAsyncPluginBase
"""
classes = inspect.getmembers(module, inspect.isclass)
loaded = 0
for cls_name, cls in classes:
if hasattr(cls, 'versions'):
if version not in cls.versions:
continue
else:
continue
if issubclass(cls, base_worker.QuarkAsyncPluginBase):
LOG.debug("Loading plugin %s" % cls_name)
plugin = cls()
self.plugins.append(plugin)
loaded += 1
LOG.debug("Found %d possible plugins and loaded %d" %
(len(classes), loaded)) |
def _discover_via_entrypoints(self):
"""Looks for modules with amtching entry points."""
emgr = extension.ExtensionManager(PLUGIN_EP, invoke_on_load=False)
return ((ext.name, ext.plugin) for ext in emgr) |
def serve_rpc(self):
"""Launches configured # of workers per loaded plugin."""
if cfg.CONF.QUARK_ASYNC.rpc_workers < 1:
cfg.CONF.set_override('rpc_workers', 1, "QUARK_ASYNC")
try:
rpc = service.RpcWorker(self.plugins)
launcher = common_service.ProcessLauncher(CONF, wait_interval=1.0)
launcher.launch_service(rpc, workers=CONF.QUARK_ASYNC.rpc_workers)
return launcher
except Exception:
with excutils.save_and_reraise_exception():
LOG.exception(_LE('Unrecoverable error: please check log for '
'details.')) |
def start_api_and_rpc_workers(self):
"""Initializes eventlet and starts wait for workers to exit.
Spawns the workers returned from serve_rpc
"""
pool = eventlet.GreenPool()
quark_rpc = self.serve_rpc()
pool.spawn(quark_rpc.wait)
pool.waitall() |
def get_resources(cls):
"""Returns Ext Resources."""
plural_mappings = resource_helper.build_plural_mappings(
{}, RESOURCE_ATTRIBUTE_MAP)
# attr.PLURALS.update(plural_mappings)
return resource_helper.build_resource_info(plural_mappings,
RESOURCE_ATTRIBUTE_MAP,
None,
register_quota=True) |
def _chunks(self, iterable, chunk_size):
"""Chunks data into chunk with size<=chunk_size."""
iterator = iter(iterable)
chunk = list(itertools.islice(iterator, 0, chunk_size))
while chunk:
yield chunk
chunk = list(itertools.islice(iterator, 0, chunk_size)) |
def _check_collisions(self, new_range, existing_ranges):
"""Check for overlapping ranges."""
def _contains(num, r1):
return (num >= r1[0] and
num <= r1[1])
def _is_overlap(r1, r2):
return (_contains(r1[0], r2) or
_contains(r1[1], r2) or
_contains(r2[0], r1) or
_contains(r2[1], r1))
for existing_range in existing_ranges:
if _is_overlap(new_range, existing_range):
return True
return False |
def _try_allocate(self, context, segment_id, network_id):
"""Find a deallocated network segment id and reallocate it.
NOTE(morgabra) This locks the segment table, but only the rows
in use by the segment, which is pretty handy if we ever have
more than 1 segment or segment type.
"""
LOG.info("Attempting to allocate segment for network %s "
"segment_id %s segment_type %s"
% (network_id, segment_id, self.segment_type))
filter_dict = {
"segment_id": segment_id,
"segment_type": self.segment_type,
"do_not_use": False
}
available_ranges = db_api.segment_allocation_range_find(
context, scope=db_api.ALL, **filter_dict)
available_range_ids = [r["id"] for r in available_ranges]
try:
with context.session.begin(subtransactions=True):
# Search for any deallocated segment ids for the
# given segment.
filter_dict = {
"deallocated": True,
"segment_id": segment_id,
"segment_type": self.segment_type,
"segment_allocation_range_ids": available_range_ids
}
# NOTE(morgabra) We select 100 deallocated segment ids from
# the table here, and then choose 1 randomly. This is to help
# alleviate the case where an uncaught exception might leave
# an allocation active on a remote service but we do not have
# a record of it locally. If we *do* end up choosing a
# conflicted id, the caller should simply allocate another one
# and mark them all as reserved. If a single object has
# multiple reservations on the same segment, they will not be
# deallocated, and the operator must resolve the conficts
# manually.
allocations = db_api.segment_allocation_find(
context, lock_mode=True, **filter_dict).limit(100).all()
if allocations:
allocation = random.choice(allocations)
# Allocate the chosen segment.
update_dict = {
"deallocated": False,
"deallocated_at": None,
"network_id": network_id
}
allocation = db_api.segment_allocation_update(
context, allocation, **update_dict)
LOG.info("Allocated segment %s for network %s "
"segment_id %s segment_type %s"
% (allocation["id"], network_id, segment_id,
self.segment_type))
return allocation
except Exception:
LOG.exception("Error in segment reallocation.")
LOG.info("Cannot find reallocatable segment for network %s "
"segment_id %s segment_type %s"
% (network_id, segment_id, self.segment_type)) |
def delete_locks(context, network_ids, addresses):
"""Deletes locks for each IP address that is no longer null-routed."""
addresses_no_longer_null_routed = _find_addresses_to_be_unlocked(
context, network_ids, addresses)
LOG.info("Deleting %s lock holders on IPAddress with ids: %s",
len(addresses_no_longer_null_routed),
[addr.id for addr in addresses_no_longer_null_routed])
for address in addresses_no_longer_null_routed:
lock_holder = None
try:
lock_holder = db_api.lock_holder_find(
context, lock_id=address.lock_id, name=LOCK_NAME,
scope=db_api.ONE)
if lock_holder:
db_api.lock_holder_delete(context, address, lock_holder)
except Exception:
LOG.exception("Failed to delete lock holder %s", lock_holder)
continue
context.session.flush() |
def create_locks(context, network_ids, addresses):
"""Creates locks for each IP address that is null-routed.
The function creates the IP address if it is not present in the database.
"""
for address in addresses:
address_model = None
try:
address_model = _find_or_create_address(
context, network_ids, address)
lock_holder = None
if address_model.lock_id:
lock_holder = db_api.lock_holder_find(
context,
lock_id=address_model.lock_id, name=LOCK_NAME,
scope=db_api.ONE)
if not lock_holder:
LOG.info("Creating lock holder on IPAddress %s with id %s",
address_model.address_readable,
address_model.id)
db_api.lock_holder_create(
context, address_model, name=LOCK_NAME, type="ip_address")
except Exception:
LOG.exception("Failed to create lock holder on IPAddress %s",
address_model)
continue
context.session.flush() |
def select_ipam_strategy(self, network_id, network_strategy, **kwargs):
"""Return relevant IPAM strategy name.
:param network_id: neutron network id.
:param network_strategy: default strategy for the network.
NOTE(morgabra) This feels like a hack but I can't think of a better
idea. The root problem is we can now attach ports to networks with
a different backend driver/ipam strategy than the network speficies.
We handle the the backend driver part with allowing network_plugin to
be specified for port objects. This works pretty well because nova or
whatever knows when we are hooking up an Ironic node so it can pass
along that key during port_create().
IPAM is a little trickier, especially in Ironic's case, because we
*must* use a specific IPAM for provider networks. There isn't really
much of an option other than involve the backend driver when selecting
the IPAM strategy.
"""
LOG.info("Selecting IPAM strategy for network_id:%s "
"network_strategy:%s" % (network_id, network_strategy))
net_type = "tenant"
if STRATEGY.is_provider_network(network_id):
net_type = "provider"
strategy = self._ipam_strategies.get(net_type, {})
default = strategy.get("default")
overrides = strategy.get("overrides", {})
# If we override a particular strategy explicitly, we use it.
if network_strategy in overrides:
LOG.info("Selected overridden IPAM strategy: %s"
% (overrides[network_strategy]))
return overrides[network_strategy]
# Otherwise, we are free to use an explicit default.
if default:
LOG.info("Selected default IPAM strategy for tenant "
"network: %s" % (default))
return default
# Fallback to the network-specified IPAM strategy
LOG.info("Selected network strategy for tenant "
"network: %s" % (network_strategy))
return network_strategy |
def _get_base_network_info(self, context, network_id, base_net_driver):
"""Return a dict of extra network information.
:param context: neutron request context.
:param network_id: neturon network id.
:param net_driver: network driver associated with network_id.
:raises IronicException: Any unexpected data fetching failures will
be logged and IronicException raised.
This driver can attach to networks managed by other drivers. We may
need some information from these drivers, or otherwise inform
downstream about the type of network we are attaching to. We can
make these decisions here.
"""
driver_name = base_net_driver.get_name()
net_info = {"network_type": driver_name}
LOG.debug('_get_base_network_info: %s %s'
% (driver_name, network_id))
# If the driver is NVP, we need to look up the lswitch id we should
# be attaching to.
if driver_name == 'NVP':
LOG.debug('looking up lswitch ids for network %s'
% (network_id))
lswitch_ids = base_net_driver.get_lswitch_ids_for_network(
context, network_id)
if not lswitch_ids or len(lswitch_ids) > 1:
msg = ('lswitch id lookup failed, %s ids found.'
% (len(lswitch_ids)))
LOG.error(msg)
raise IronicException(msg)
lswitch_id = lswitch_ids.pop()
LOG.info('found lswitch for network %s: %s'
% (network_id, lswitch_id))
net_info['lswitch_id'] = lswitch_id
LOG.debug('_get_base_network_info finished: %s %s %s'
% (driver_name, network_id, net_info))
return net_info |
def create_port(self, context, network_id, port_id, **kwargs):
"""Create a port.
:param context: neutron api request context.
:param network_id: neutron network id.
:param port_id: neutron port id.
:param kwargs:
required keys - device_id: neutron port device_id (instance_id)
instance_node_id: nova hypervisor host id
mac_address: neutron port mac address
base_net_driver: the base network driver
optional keys - addresses: list of allocated IPAddress models
security_groups: list of associated security groups
:raises IronicException: If the client is unable to create the
downstream port for any reason, the exception will be logged
and IronicException raised.
"""
LOG.info("create_port %s %s %s" % (context.tenant_id, network_id,
port_id))
# sanity check
if not kwargs.get('base_net_driver'):
raise IronicException(msg='base_net_driver required.')
base_net_driver = kwargs['base_net_driver']
if not kwargs.get('device_id'):
raise IronicException(msg='device_id required.')
device_id = kwargs['device_id']
if not kwargs.get('instance_node_id'):
raise IronicException(msg='instance_node_id required.')
instance_node_id = kwargs['instance_node_id']
if not kwargs.get('mac_address'):
raise IronicException(msg='mac_address is required.')
mac_address = str(netaddr.EUI(kwargs["mac_address"]["address"]))
mac_address = mac_address.replace('-', ':')
# TODO(morgabra): Change this when we enable security groups.
if kwargs.get('security_groups'):
msg = 'ironic driver does not support security group operations.'
raise IronicException(msg=msg)
# unroll the given address models into a fixed_ips list we can
# pass downstream
fixed_ips = []
addresses = kwargs.get('addresses')
if not isinstance(addresses, list):
addresses = [addresses]
for address in addresses:
fixed_ips.append(self._make_fixed_ip_dict(context, address))
body = {
"id": port_id,
"network_id": network_id,
"device_id": device_id,
"device_owner": kwargs.get('device_owner', ''),
"tenant_id": context.tenant_id or "quark",
"roles": context.roles,
"mac_address": mac_address,
"fixed_ips": fixed_ips,
"switch:hardware_id": instance_node_id,
"dynamic_network": not STRATEGY.is_provider_network(network_id)
}
net_info = self._get_base_network_info(
context, network_id, base_net_driver)
body.update(net_info)
try:
LOG.info("creating downstream port: %s" % (body))
port = self._create_port(context, body)
LOG.info("created downstream port: %s" % (port))
return {"uuid": port['port']['id'],
"vlan_id": port['port']['vlan_id']}
except Exception as e:
msg = "failed to create downstream port. Exception: %s" % (e)
raise IronicException(msg=msg) |
def update_port(self, context, port_id, **kwargs):
"""Update a port.
:param context: neutron api request context.
:param port_id: neutron port id.
:param kwargs: optional kwargs.
:raises IronicException: If the client is unable to update the
downstream port for any reason, the exception will be logged
and IronicException raised.
TODO(morgabra) It does not really make sense in the context of Ironic
to allow updating ports. fixed_ips and mac_address are burned in the
configdrive on the host, and we otherwise cannot migrate a port between
instances. Eventually we will need to support security groups, but for
now it's a no-op on port data changes, and we need to rely on the
API/Nova to not allow updating data on active ports.
"""
LOG.info("update_port %s %s" % (context.tenant_id, port_id))
# TODO(morgabra): Change this when we enable security groups.
if kwargs.get("security_groups"):
msg = 'ironic driver does not support security group operations.'
raise IronicException(msg=msg)
return {"uuid": port_id} |
def delete_port(self, context, port_id, **kwargs):
"""Delete a port.
:param context: neutron api request context.
:param port_id: neutron port id.
:param kwargs: optional kwargs.
:raises IronicException: If the client is unable to delete the
downstream port for any reason, the exception will be logged
and IronicException raised.
"""
LOG.info("delete_port %s %s" % (context.tenant_id, port_id))
try:
self._delete_port(context, port_id)
LOG.info("deleted downstream port: %s" % (port_id))
except Exception:
LOG.error("failed deleting downstream port, it is now "
"orphaned! port_id: %s" % (port_id)) |
def diag_port(self, context, port_id, **kwargs):
"""Diagnose a port.
:param context: neutron api request context.
:param port_id: neutron port id.
:param kwargs: optional kwargs.
:raises IronicException: If the client is unable to fetch the
downstream port for any reason, the exception will be
logged and IronicException raised.
"""
LOG.info("diag_port %s" % port_id)
try:
port = self._client.show_port(port_id)
except Exception as e:
msg = "failed fetching downstream port: %s" % (str(e))
LOG.exception(msg)
raise IronicException(msg=msg)
return {"downstream_port": port} |
def set(self, model, value):
"""Set tag on model object."""
self.validate(value)
self._pop(model)
value = self.serialize(value)
model.tags.append(value) |
def get(self, model):
"""Get a matching valid tag off the model."""
for tag in model.tags:
if self.is_tag(tag):
value = self.deserialize(tag)
try:
self.validate(value)
return value
except TagValidationError:
continue
return None |
def _pop(self, model):
"""Pop all matching tags off the model and return them."""
tags = []
# collect any exsiting tags with matching prefix
for tag in model.tags:
if self.is_tag(tag):
tags.append(tag)
# remove collected tags from model
if tags:
for tag in tags:
model.tags.remove(tag)
return tags |
def pop(self, model):
"""Pop all matching tags off the port, return a valid one."""
tags = self._pop(model)
if tags:
for tag in tags:
value = self.deserialize(tag)
try:
self.validate(value)
return value
except TagValidationError:
continue |
def has_tag(self, model):
"""Does the given port have this tag?"""
for tag in model.tags:
if self.is_tag(tag):
return True
return False |
def validate(self, value):
"""Validates a VLAN ID.
:param value: The VLAN ID to validate against.
:raises TagValidationError: Raised if the VLAN ID is invalid.
"""
try:
vlan_id_int = int(value)
assert vlan_id_int >= self.MIN_VLAN_ID
assert vlan_id_int <= self.MAX_VLAN_ID
except Exception:
msg = ("Invalid vlan_id. Got '%(vlan_id)s'. "
"vlan_id should be an integer between %(min)d and %(max)d "
"inclusive." % {'vlan_id': value,
'min': self.MIN_VLAN_ID,
'max': self.MAX_VLAN_ID})
raise TagValidationError(value, msg)
return True |
def get_all(self, model):
"""Get all known tags from a model.
Returns a dict of {<tag_name>:<tag_value>}.
"""
tags = {}
for name, tag in self.tags.items():
for mtag in model.tags:
if tag.is_tag(mtag):
tags[name] = tag.get(model)
return tags |
def set_all(self, model, **tags):
"""Validate and set all known tags on a port."""
for name, tag in self.tags.items():
if name in tags:
value = tags.pop(name)
if value:
try:
tag.set(model, value)
except TagValidationError as e:
raise n_exc.BadRequest(
resource="tags",
msg="%s" % (e.message)) |
def serialize_rules(self, rules):
"""Creates a payload for the redis server."""
# TODO(mdietz): If/when we support other rule types, this comment
# will have to be revised.
# Action and direction are static, for now. The implementation may
# support 'deny' and 'egress' respectively in the future. We allow
# the direction to be set to something else, technically, but current
# plugin level call actually raises. It's supported here for unit
# test purposes at this time
serialized = []
for rule in rules:
direction = rule["direction"]
source = ''
destination = ''
if rule.get("remote_ip_prefix"):
prefix = rule["remote_ip_prefix"]
if direction == "ingress":
source = self._convert_remote_network(prefix)
else:
if (Capabilities.EGRESS not in
CONF.QUARK.environment_capabilities):
raise q_exc.EgressSecurityGroupRulesNotEnabled()
else:
destination = self._convert_remote_network(prefix)
optional_fields = {}
# NOTE(mdietz): this will expand as we add more protocols
protocol_map = protocols.PROTOCOL_MAP[rule["ethertype"]]
if rule["protocol"] == protocol_map["icmp"]:
optional_fields["icmp type"] = rule["port_range_min"]
optional_fields["icmp code"] = rule["port_range_max"]
else:
optional_fields["port start"] = rule["port_range_min"]
optional_fields["port end"] = rule["port_range_max"]
payload = {"ethertype": rule["ethertype"],
"protocol": rule["protocol"],
"source network": source,
"destination network": destination,
"action": "allow",
"direction": direction}
payload.update(optional_fields)
serialized.append(payload)
return serialized |
def serialize_groups(self, groups):
"""Creates a payload for the redis server
The rule schema is the following:
REDIS KEY - port_device_id.port_mac_address/sg
REDIS VALUE - A JSON dump of the following:
port_mac_address must be lower-cased and stripped of non-alphanumeric
characters
{"id": "<arbitrary uuid>",
"rules": [
{"ethertype": <hexademical integer>,
"protocol": <integer>,
"port start": <integer>, # optional
"port end": <integer>, # optional
"icmp type": <integer>, # optional
"icmp code": <integer>, # optional
"source network": <string>,
"destination network": <string>,
"action": <string>,
"direction": <string>},
],
"security groups ack": <boolean>
}
Example:
{"id": "004c6369-9f3d-4d33-b8f5-9416bf3567dd",
"rules": [
{"ethertype": 0x800,
"protocol": "tcp",
"port start": 1000,
"port end": 1999,
"source network": "10.10.10.0/24",
"destination network": "",
"action": "allow",
"direction": "ingress"},
],
"security groups ack": "true"
}
port start/end and icmp type/code are mutually exclusive pairs.
"""
rules = []
for group in groups:
rules.extend(self.serialize_rules(group.rules))
return rules |
def apply_rules(self, device_id, mac_address, rules):
"""Writes a series of security group rules to a redis server."""
LOG.info("Applying security group rules for device %s with MAC %s" %
(device_id, mac_address))
rule_dict = {SECURITY_GROUP_RULE_KEY: rules}
redis_key = self.vif_key(device_id, mac_address)
# TODO(mdietz): Pipeline these. Requires some rewriting
self.set_field(redis_key, SECURITY_GROUP_HASH_ATTR, rule_dict)
self.set_field_raw(redis_key, SECURITY_GROUP_ACK, False) |
def get_security_group_states(self, interfaces):
"""Gets security groups for interfaces from Redis
Returns a dictionary of xapi.VIFs with values of the current
acknowledged status in Redis.
States not explicitly handled:
* ack key, no rules - This is the same as just tagging the VIF,
the instance will be inaccessible
* rules key, no ack - Nothing will happen, the VIF will
not be tagged.
"""
LOG.debug("Getting security groups from Redis for {0}".format(
interfaces))
interfaces = tuple(interfaces)
vif_keys = [self.vif_key(vif.device_id, vif.mac_address)
for vif in interfaces]
# Retrieve all fields associated with this key, which should be
# 'security groups ack' and 'security group rules'.
sec_grp_all = self.get_fields_all(vif_keys)
ret = {}
# Associate the vif with the fields in a dictionary
for vif, group in zip(interfaces, sec_grp_all):
if group:
ret[vif] = {SECURITY_GROUP_ACK: None,
SECURITY_GROUP_HASH_ATTR: []}
temp_ack = group[SECURITY_GROUP_ACK].lower()
temp_rules = group[SECURITY_GROUP_HASH_ATTR]
if temp_rules:
temp_rules = json.loads(temp_rules)
ret[vif][SECURITY_GROUP_HASH_ATTR] = temp_rules["rules"]
if "true" in temp_ack:
ret[vif][SECURITY_GROUP_ACK] = True
elif "false" in temp_ack:
ret[vif][SECURITY_GROUP_ACK] = False
else:
ret.pop(vif, None)
LOG.debug("Skipping bad ack value %s" % temp_ack)
return ret |
def update_group_states_for_vifs(self, vifs, ack):
"""Updates security groups by setting the ack field"""
vif_keys = [self.vif_key(vif.device_id, vif.mac_address)
for vif in vifs]
self.set_fields(vif_keys, SECURITY_GROUP_ACK, ack) |
def run_migrations_offline():
"""Run migrations in 'offline' mode.
This configures the context with just a URL
and not an Engine, though an Engine is acceptable
here as well. By skipping the Engine creation
we don't even need a DBAPI to be available.
Calls to context.execute() here emit the given string to the
script output.
"""
context.configure(url=neutron_config.database.connection)
with context.begin_transaction():
context.run_migrations() |
def run_migrations_online():
"""Run migrations in 'online' mode.
In this scenario we need to create an Engine
and associate a connection with the context.
"""
engine = create_engine(
neutron_config.database.connection,
poolclass=pool.NullPool)
connection = engine.connect()
context.configure(
connection=connection,
target_metadata=target_metadata)
try:
with context.begin_transaction():
context.run_migrations()
finally:
connection.close() |
def do_notify(context, event_type, payload):
"""Generic Notifier.
Parameters:
- `context`: session context
- `event_type`: the event type to report, i.e. ip.usage
- `payload`: dict containing the payload to send
"""
LOG.debug('IP_BILL: notifying {}'.format(payload))
notifier = n_rpc.get_notifier('network')
notifier.info(context, event_type, payload) |
def notify(context, event_type, ipaddress, send_usage=False, *args, **kwargs):
"""Method to send notifications.
We must send USAGE when a public IPv4 address is deallocated or a FLIP is
associated.
Parameters:
- `context`: the context for notifier
- `event_type`: the event type for IP allocate, deallocate, associate,
disassociate
- `ipaddress`: the ipaddress object to notify about
Returns:
nothing
Notes: this may live in the billing module
"""
if (event_type == IP_ADD and not CONF.QUARK.notify_ip_add) or \
(event_type == IP_DEL and not CONF.QUARK.notify_ip_delete) or \
(event_type == IP_ASSOC and not CONF.QUARK.notify_flip_associate) or \
(event_type == IP_DISASSOC and not CONF.QUARK.notify_flip_disassociate)\
or (event_type == IP_EXISTS and not CONF.QUARK.notify_ip_exists):
LOG.debug('IP_BILL: notification {} is disabled by config'.
format(event_type))
return
# Do not send notifications when we are undoing due to an error
if 'rollback' in kwargs and kwargs['rollback']:
LOG.debug('IP_BILL: not sending notification because we are in undo')
return
# ip.add needs the allocated_at time.
# All other events need the current time.
ts = ipaddress.allocated_at if event_type == IP_ADD else _now()
payload = build_payload(ipaddress, event_type, event_time=ts)
# Send the notification with the payload
do_notify(context, event_type, payload)
# When we deallocate an IP or associate a FLIP we must send
# a usage message to billing.
# In other words when we supply end_time we must send USAGE to billing
# immediately.
# Our billing period is 24 hrs. If the address was allocated after midnight
# send the start_time as as. If the address was allocated yesterday, then
# send midnight as the start_time.
# Note: if allocated_at is empty we assume today's midnight.
if send_usage:
if ipaddress.allocated_at is not None and \
ipaddress.allocated_at >= _midnight_today():
start_time = ipaddress.allocated_at
else:
start_time = _midnight_today()
payload = build_payload(ipaddress,
IP_EXISTS,
start_time=start_time,
end_time=ts)
do_notify(context, IP_EXISTS, payload) |
def build_payload(ipaddress,
event_type,
event_time=None,
start_time=None,
end_time=None):
"""Method builds a payload out of the passed arguments.
Parameters:
`ipaddress`: the models.IPAddress object
`event_type`: USAGE,CREATE,DELETE,SUSPEND,or UNSUSPEND
`start_time`: startTime for cloudfeeds
`end_time`: endTime for cloudfeeds
Returns a dictionary suitable to notify billing.
Message types mapping to cloud feeds for references:
ip.exists - USAGE
ip.add - CREATE
ip.delete - DELETE
ip.associate - UP
ip.disassociate - DOWN
Refer to: http://rax.io/cf-api for more details.
"""
# This is the common part of all message types
payload = {
'event_type': unicode(event_type),
'tenant_id': unicode(ipaddress.used_by_tenant_id),
'ip_address': unicode(ipaddress.address_readable),
'ip_version': int(ipaddress.version),
'ip_type': unicode(ipaddress.address_type),
'id': unicode(ipaddress.id)
}
# Depending on the message type add the appropriate fields
if event_type == IP_EXISTS:
if start_time is None or end_time is None:
raise ValueError('IP_BILL: {} start_time/end_time cannot be empty'
.format(event_type))
payload.update({
'startTime': unicode(convert_timestamp(start_time)),
'endTime': unicode(convert_timestamp(end_time))
})
elif event_type in [IP_ADD, IP_DEL, IP_ASSOC, IP_DISASSOC]:
if event_time is None:
raise ValueError('IP_BILL: {}: event_time cannot be NULL'
.format(event_type))
payload.update({
'eventTime': unicode(convert_timestamp(event_time)),
'subnet_id': unicode(ipaddress.subnet_id),
'network_id': unicode(ipaddress.network_id),
'public': True if ipaddress.network_id == PUBLIC_NETWORK_ID
else False,
})
else:
raise ValueError('IP_BILL: bad event_type: {}'.format(event_type))
return payload |
def build_full_day_ips(query, period_start, period_end):
"""Method to build an IP list for the case 1
when the IP was allocated before the period start
and is still allocated after the period end.
This method only looks at public IPv4 addresses.
"""
# Filter out only IPv4 that have not been deallocated
ip_list = query.\
filter(models.IPAddress.version == 4L).\
filter(models.IPAddress.network_id == PUBLIC_NETWORK_ID).\
filter(models.IPAddress.used_by_tenant_id is not None).\
filter(models.IPAddress.allocated_at != null()).\
filter(models.IPAddress.allocated_at < period_start).\
filter(or_(models.IPAddress._deallocated is False,
models.IPAddress.deallocated_at == null(),
models.IPAddress.deallocated_at >= period_end)).all()
return ip_list |
def calc_periods(hour=0, minute=0):
"""Returns a tuple of start_period and end_period.
Assumes that the period is 24-hrs.
Parameters:
- `hour`: the hour from 0 to 23 when the period ends
- `minute`: the minute from 0 to 59 when the period ends
This method will calculate the end of the period as the closest hour/minute
going backwards.
It will also calculate the start of the period as the passed hour/minute
but 24 hrs ago.
Example, if we pass 0, 0 - we will get the events from 0:00 midnight of the
day before yesterday until today's midnight.
If we pass 2,0 - we will get the start time as 2am of the previous morning
till 2am of today's morning.
By default it's midnight.
"""
# Calculate the time intervals in a usable form
period_end = datetime.datetime.utcnow().replace(hour=hour,
minute=minute,
second=0,
microsecond=0)
period_start = period_end - datetime.timedelta(days=1)
# period end should be slightly before the midnight.
# hence, we subtract a second
# this will force period_end to store something like:
# datetime.datetime(2016, 5, 19, 23, 59, 59, 999999)
# instead of:
# datetime.datetime(2016, 5, 20, 0, 0, 0, 0)
period_end -= datetime.timedelta(seconds=1)
return (period_start, period_end) |
def _make_job_dict(job):
"""Creates the view for a job while calculating progress.
Since a root job does not have a transaction id (TID) it will return its
id as the TID.
"""
body = {"id": job.get('id'),
"action": job.get('action'),
"completed": job.get('completed'),
"tenant_id": job.get('tenant_id'),
"created_at": job.get('created_at'),
"transaction_id": job.get('transaction_id'),
"parent_id": job.get('parent_id', None)}
if not body['transaction_id']:
body['transaction_id'] = job.get('id')
completed = 0
for sub in job.subtransactions:
if sub.get('completed'):
completed += 1
pct = 100 if job.get('completed') else 0
if len(job.subtransactions) > 0:
pct = float(completed) / len(job.subtransactions) * 100.0
body['transaction_percent'] = int(pct)
body['completed_subtransactions'] = completed
body['subtransactions'] = len(job.subtransactions)
return body |
def get_mac_address_range(context, id, fields=None):
"""Retrieve a mac_address_range.
: param context: neutron api request context
: param id: UUID representing the network to fetch.
: param fields: a list of strings that are valid keys in a
network dictionary as listed in the RESOURCE_ATTRIBUTE_MAP
object in neutron/api/v2/attributes.py. Only these fields
will be returned.
"""
LOG.info("get_mac_address_range %s for tenant %s fields %s" %
(id, context.tenant_id, fields))
if not context.is_admin:
raise n_exc.NotAuthorized()
mac_address_range = db_api.mac_address_range_find(
context, id=id, scope=db_api.ONE)
if not mac_address_range:
raise q_exc.MacAddressRangeNotFound(
mac_address_range_id=id)
return v._make_mac_range_dict(mac_address_range) |
def delete_mac_address_range(context, id):
"""Delete a mac_address_range.
: param context: neutron api request context
: param id: UUID representing the mac_address_range to delete.
"""
LOG.info("delete_mac_address_range %s for tenant %s" %
(id, context.tenant_id))
if not context.is_admin:
raise n_exc.NotAuthorized()
with context.session.begin():
mar = db_api.mac_address_range_find(context, id=id, scope=db_api.ONE)
if not mar:
raise q_exc.MacAddressRangeNotFound(
mac_address_range_id=id)
_delete_mac_address_range(context, mar) |
def get_resources(cls):
"""Returns Ext Resources."""
job_controller = JobsController(
directory.get_plugin())
resources = []
resources.append(extensions.ResourceExtension(
Jobs.get_alias(),
job_controller))
return resources |
def downgrade():
"""alexm: i believe this method is never called"""
with op.batch_alter_table(t2_name) as batch_op:
batch_op.drop_column('do_not_use')
with op.batch_alter_table(t1_name) as batch_op:
batch_op.drop_column('enabled') |
def delete_segment_allocation_range(context, sa_id):
"""Delete a segment_allocation_range.
: param context: neutron api request context
: param id: UUID representing the segment_allocation_range to delete.
"""
LOG.info("delete_segment_allocation_range %s for tenant %s" %
(sa_id, context.tenant_id))
if not context.is_admin:
raise n_exc.NotAuthorized()
with context.session.begin():
sa_range = db_api.segment_allocation_range_find(
context, id=sa_id, scope=db_api.ONE)
if not sa_range:
raise q_exc.SegmentAllocationRangeNotFound(
segment_allocation_range_id=sa_id)
_delete_segment_allocation_range(context, sa_range) |
def filter_factory(global_conf, **local_conf):
"""Returns a WSGI filter app for use with paste.deploy."""
conf = global_conf.copy()
conf.update(local_conf)
def wrapper(app):
return ResponseAsyncIdAdder(app, conf)
return wrapper |
def get_used_ips(session, **kwargs):
"""Returns dictionary with keys segment_id and value used IPs count.
Used IP address count is determined by:
- allocated IPs
- deallocated IPs whose `deallocated_at` is within the `reuse_after`
window compared to the present time, excluding IPs that are accounted for
in the current IP policy (because IP policy is mutable and deallocated IPs
are not checked nor deleted on IP policy creation, thus deallocated IPs
that don't fit the current IP policy can exist in the neutron database).
"""
LOG.debug("Getting used IPs...")
with session.begin():
query = session.query(
models.Subnet.segment_id,
func.count(models.IPAddress.address))
query = query.group_by(models.Subnet.segment_id)
query = _filter(query, **kwargs)
reuse_window = timeutils.utcnow() - datetime.timedelta(
seconds=cfg.CONF.QUARK.ipam_reuse_after)
# NOTE(asadoughi): This is an outer join instead of a regular join
# to include subnets with zero IP addresses in the database.
query = query.outerjoin(
models.IPAddress,
and_(models.Subnet.id == models.IPAddress.subnet_id,
or_(not_(models.IPAddress.lock_id.is_(None)),
models.IPAddress._deallocated.is_(None),
models.IPAddress._deallocated == 0,
models.IPAddress.deallocated_at > reuse_window)))
query = query.outerjoin(
models.IPPolicyCIDR,
and_(
models.Subnet.ip_policy_id == models.IPPolicyCIDR.ip_policy_id,
models.IPAddress.address >= models.IPPolicyCIDR.first_ip,
models.IPAddress.address <= models.IPPolicyCIDR.last_ip))
# NOTE(asadoughi): (address is allocated) OR
# (address is deallocated and not inside subnet's IP policy)
query = query.filter(or_(
models.IPAddress._deallocated.is_(None),
models.IPAddress._deallocated == 0,
models.IPPolicyCIDR.id.is_(None)))
ret = ((segment_id, address_count)
for segment_id, address_count in query.all())
return dict(ret) |
def get_unused_ips(session, used_ips_counts, **kwargs):
"""Returns dictionary with key segment_id, and value unused IPs count.
Unused IP address count is determined by:
- adding subnet's cidr's size
- subtracting IP policy exclusions on subnet
- subtracting used ips per segment
"""
LOG.debug("Getting unused IPs...")
with session.begin():
query = session.query(
models.Subnet.segment_id,
models.Subnet)
query = _filter(query, **kwargs)
query = query.group_by(models.Subnet.segment_id, models.Subnet.id)
ret = defaultdict(int)
for segment_id, subnet in query.all():
net_size = netaddr.IPNetwork(subnet._cidr).size
ip_policy = subnet["ip_policy"] or {"size": 0}
ret[segment_id] += net_size - ip_policy["size"]
for segment_id in used_ips_counts:
ret[segment_id] -= used_ips_counts[segment_id]
return ret |
def get_instances(self, session):
"""Returns a dict of `VM OpaqueRef` (str) -> `xapi.VM`."""
LOG.debug("Getting instances from Xapi")
recs = session.xenapi.VM.get_all_records()
# NOTE(asadoughi): Copied from xen-networking-scripts/utils.py
is_inst = lambda r: (r['power_state'].lower() == 'running' and
not r['is_a_template'] and
not r['is_control_domain'] and
('nova_uuid' in r['other_config'] or
r['name_label'].startswith('instance-')))
instances = dict()
for vm_ref, rec in recs.iteritems():
if not is_inst(rec):
continue
instances[vm_ref] = VM(ref=vm_ref,
uuid=rec["other_config"]["nova_uuid"],
vifs=rec["VIFs"],
dom_id=rec["domid"])
return instances |
def get_interfaces(self):
"""Returns a set of VIFs from `get_instances` return value."""
LOG.debug("Getting interfaces from Xapi")
with self.sessioned() as session:
instances = self.get_instances(session)
recs = session.xenapi.VIF.get_all_records()
interfaces = set()
for vif_ref, rec in recs.iteritems():
vm = instances.get(rec["VM"])
if not vm:
continue
device_id = vm.uuid
interfaces.add(VIF(device_id, rec, vif_ref))
return interfaces |
def update_interfaces(self, added_sg, updated_sg, removed_sg):
"""Handles changes to interfaces' security groups
Calls refresh_interfaces on argument VIFs. Set security groups on
added_sg's VIFs. Unsets security groups on removed_sg's VIFs.
"""
if not (added_sg or updated_sg or removed_sg):
return
with self.sessioned() as session:
self._set_security_groups(session, added_sg)
self._unset_security_groups(session, removed_sg)
combined = added_sg + updated_sg + removed_sg
self._refresh_interfaces(session, combined) |
def create_network(context, network):
"""Create a network.
Create a network which represents an L2 network segment which
can have a set of subnets and ports associated with it.
: param context: neutron api request context
: param network: dictionary describing the network, with keys
as listed in the RESOURCE_ATTRIBUTE_MAP object in
neutron/api/v2/attributes.py. All keys will be populated.
"""
LOG.info("create_network for tenant %s" % context.tenant_id)
with context.session.begin():
net_attrs = network["network"]
subs = net_attrs.pop("subnets", [])
# Enforce subnet quotas
if not context.is_admin:
if len(subs) > 0:
v4_count, v6_count = 0, 0
for s in subs:
version = netaddr.IPNetwork(s['subnet']['cidr']).version
if version == 6:
v6_count += 1
else:
v4_count += 1
if v4_count > 0:
tenant_q_v4 = context.session.query(qdv.Quota).filter_by(
tenant_id=context.tenant_id,
resource='v4_subnets_per_network').first()
if tenant_q_v4 != -1:
quota.QUOTAS.limit_check(
context,
context.tenant_id,
v4_subnets_per_network=v4_count)
if v6_count > 0:
tenant_q_v6 = context.session.query(qdv.Quota).filter_by(
tenant_id=context.tenant_id,
resource='v6_subnets_per_network').first()
if tenant_q_v6 != -1:
quota.QUOTAS.limit_check(
context,
context.tenant_id,
v6_subnets_per_network=v6_count)
# Generate a uuid that we're going to hand to the backend and db
net_uuid = utils.pop_param(net_attrs, "id", None)
net_type = None
if net_uuid and context.is_admin:
net = db_api.network_find(context=context, limit=None,
sorts=['id'], marker=None,
page_reverse=False, id=net_uuid,
scope=db_api.ONE)
net_type = utils.pop_param(net_attrs, "network_plugin", None)
if net:
raise q_exc.NetworkAlreadyExists(id=net_uuid)
else:
net_uuid = uuidutils.generate_uuid()
# TODO(mdietz) this will be the first component registry hook, but
# lets make it work first
pnet_type, phys_net, seg_id = _adapt_provider_nets(context, network)
ipam_strategy = utils.pop_param(net_attrs, "ipam_strategy", None)
if not ipam_strategy or not context.is_admin:
ipam_strategy = CONF.QUARK.default_ipam_strategy
if not ipam.IPAM_REGISTRY.is_valid_strategy(ipam_strategy):
raise q_exc.InvalidIpamStrategy(strat=ipam_strategy)
net_attrs["ipam_strategy"] = ipam_strategy
# NOTE(mdietz) I think ideally we would create the providernet
# elsewhere as a separate driver step that could be
# kept in a plugin and completely removed if desired. We could
# have a pre-callback/observer on the netdriver create_network
# that gathers any additional parameters from the network dict
default_net_type = net_type or CONF.QUARK.default_network_type
net_driver = registry.DRIVER_REGISTRY.get_driver(default_net_type)
net_driver.create_network(context, net_attrs["name"],
network_id=net_uuid, phys_type=pnet_type,
phys_net=phys_net, segment_id=seg_id)
net_attrs["id"] = net_uuid
net_attrs["tenant_id"] = context.tenant_id
net_attrs["network_plugin"] = default_net_type
new_net = db_api.network_create(context, **net_attrs)
new_subnets = []
for sub in subs:
sub["subnet"]["network_id"] = new_net["id"]
sub["subnet"]["tenant_id"] = context.tenant_id
s = db_api.subnet_create(context, **sub["subnet"])
new_subnets.append(s)
new_net["subnets"] = new_subnets
# if not security_groups.get_security_groups(
# context,
# filters={"id": security_groups.DEFAULT_SG_UUID}):
# security_groups._create_default_security_group(context)
return v._make_network_dict(new_net) |
def update_network(context, id, network):
"""Update values of a network.
: param context: neutron api request context
: param id: UUID representing the network to update.
: param network: dictionary with keys indicating fields to update.
valid keys are those that have a value of True for 'allow_put'
as listed in the RESOURCE_ATTRIBUTE_MAP object in
neutron/api/v2/attributes.py.
"""
LOG.info("update_network %s for tenant %s" %
(id, context.tenant_id))
with context.session.begin():
net = db_api.network_find(context, id=id, scope=db_api.ONE)
if not net:
raise n_exc.NetworkNotFound(net_id=id)
net_dict = network["network"]
utils.pop_param(net_dict, "network_plugin")
if not context.is_admin and "ipam_strategy" in net_dict:
utils.pop_param(net_dict, "ipam_strategy")
net = db_api.network_update(context, net, **net_dict)
return v._make_network_dict(net) |
def get_network(context, id, fields=None):
"""Retrieve a network.
: param context: neutron api request context
: param id: UUID representing the network to fetch.
: param fields: a list of strings that are valid keys in a
network dictionary as listed in the RESOURCE_ATTRIBUTE_MAP
object in neutron/api/v2/attributes.py. Only these fields
will be returned.
"""
LOG.info("get_network %s for tenant %s fields %s" %
(id, context.tenant_id, fields))
network = db_api.network_find(context=context, limit=None, sorts=['id'],
marker=None, page_reverse=False,
id=id, join_subnets=True, scope=db_api.ONE)
if not network:
raise n_exc.NetworkNotFound(net_id=id)
return v._make_network_dict(network, fields=fields) |
def get_networks(context, limit=None, sorts=['id'], marker=None,
page_reverse=False, filters=None, fields=None):
"""Retrieve a list of networks.
The contents of the list depends on the identity of the user
making the request (as indicated by the context) as well as any
filters.
: param context: neutron api request context
: param filters: a dictionary with keys that are valid keys for
a network as listed in the RESOURCE_ATTRIBUTE_MAP object
in neutron/api/v2/attributes.py. Values in this dictiontary
are an iterable containing values that will be used for an exact
match comparison for that value. Each result returned by this
function will have matched one of the values for each key in
filters.
: param fields: a list of strings that are valid keys in a
network dictionary as listed in the RESOURCE_ATTRIBUTE_MAP
object in neutron/api/v2/attributes.py. Only these fields
will be returned.
"""
LOG.info("get_networks for tenant %s with filters %s, fields %s" %
(context.tenant_id, filters, fields))
filters = filters or {}
nets = db_api.network_find(context, limit, sorts, marker, page_reverse,
join_subnets=True, **filters) or []
nets = [v._make_network_dict(net, fields=fields) for net in nets]
return nets |
def get_networks_count(context, filters=None):
"""Return the number of networks.
The result depends on the identity of the user making the request
(as indicated by the context) as well as any filters.
: param context: neutron api request context
: param filters: a dictionary with keys that are valid keys for
a network as listed in the RESOURCE_ATTRIBUTE_MAP object
in neutron/api/v2/attributes.py. Values in this dictiontary
are an iterable containing values that will be used for an exact
match comparison for that value. Each result returned by this
function will have matched one of the values for each key in
filters.
NOTE: this method is optional, as it was not part of the originally
defined plugin API.
"""
LOG.info("get_networks_count for tenant %s filters %s" %
(context.tenant_id, filters))
return db_api.network_count_all(context) |
def delete_network(context, id):
"""Delete a network.
: param context: neutron api request context
: param id: UUID representing the network to delete.
"""
LOG.info("delete_network %s for tenant %s" % (id, context.tenant_id))
with context.session.begin():
net = db_api.network_find(context=context, limit=None, sorts=['id'],
marker=None, page_reverse=False, id=id,
scope=db_api.ONE)
if not net:
raise n_exc.NetworkNotFound(net_id=id)
if not context.is_admin:
if STRATEGY.is_provider_network(net.id):
raise n_exc.NotAuthorized(net_id=id)
if net.ports:
raise n_exc.NetworkInUse(net_id=id)
net_driver = registry.DRIVER_REGISTRY.get_driver(net["network_plugin"])
net_driver.delete_network(context, id)
for subnet in net["subnets"]:
subnets._delete_subnet(context, subnet)
db_api.network_delete(context, net) |
def make_case2(context):
"""This is a helper method for testing.
When run with the current context, it will create a case 2 entries
in the database. See top of file for what case 2 is.
"""
query = context.session.query(models.IPAddress)
period_start, period_end = billing.calc_periods()
ip_list = billing.build_full_day_ips(query, period_start, period_end)
import random
ind = random.randint(0, len(ip_list) - 1)
address = ip_list[ind]
address.allocated_at = datetime.datetime.utcnow() -\
datetime.timedelta(days=1)
context.session.add(address)
context.session.flush() |
def main(notify, hour, minute):
"""Runs billing report. Optionally sends notifications to billing"""
# Read the config file and get the admin context
config_opts = ['--config-file', '/etc/neutron/neutron.conf']
config.init(config_opts)
# Have to load the billing module _after_ config is parsed so
# that we get the right network strategy
network_strategy.STRATEGY.load()
billing.PUBLIC_NETWORK_ID = network_strategy.STRATEGY.get_public_net_id()
config.setup_logging()
context = neutron_context.get_admin_context()
# A query to get all IPAddress objects from the db
query = context.session.query(models.IPAddress)
(period_start, period_end) = billing.calc_periods(hour, minute)
full_day_ips = billing.build_full_day_ips(query,
period_start,
period_end)
partial_day_ips = billing.build_partial_day_ips(query,
period_start,
period_end)
if notify:
# '==================== Full Day ============================='
for ipaddress in full_day_ips:
click.echo('start: {}, end: {}'.format(period_start, period_end))
payload = billing.build_payload(ipaddress,
billing.IP_EXISTS,
start_time=period_start,
end_time=period_end)
billing.do_notify(context,
billing.IP_EXISTS,
payload)
# '==================== Part Day ============================='
for ipaddress in partial_day_ips:
click.echo('start: {}, end: {}'.format(period_start, period_end))
payload = billing.build_payload(ipaddress,
billing.IP_EXISTS,
start_time=ipaddress.allocated_at,
end_time=period_end)
billing.do_notify(context,
billing.IP_EXISTS,
payload)
else:
click.echo('Case 1 ({}):\n'.format(len(full_day_ips)))
for ipaddress in full_day_ips:
pp(billing.build_payload(ipaddress,
billing.IP_EXISTS,
start_time=period_start,
end_time=period_end))
click.echo('\n===============================================\n')
click.echo('Case 2 ({}):\n'.format(len(partial_day_ips)))
for ipaddress in partial_day_ips:
pp(billing.build_payload(ipaddress,
billing.IP_EXISTS,
start_time=ipaddress.allocated_at,
end_time=period_end)) |
def start_rpc_listeners(self):
"""Configure all listeners here"""
self._setup_rpc()
if not self.endpoints:
return []
self.conn = n_rpc.create_connection()
self.conn.create_consumer(self.topic, self.endpoints,
fanout=False)
return self.conn.consume_in_threads() |
def context(self):
"""Provides an admin context for workers."""
if not self._context:
self._context = context.get_admin_context()
return self._context |
def update_sg(self, context, sg, rule_id, action):
"""Begins the async update process."""
db_sg = db_api.security_group_find(context, id=sg, scope=db_api.ONE)
if not db_sg:
return None
with context.session.begin():
job_body = dict(action="%s sg rule %s" % (action, rule_id),
resource_id=rule_id,
tenant_id=db_sg['tenant_id'])
job_body = dict(job=job_body)
job = job_api.create_job(context.elevated(), job_body)
rpc_client = QuarkSGAsyncProducerClient()
try:
rpc_client.populate_subtasks(context, sg, job['id'])
except om_exc.MessagingTimeout:
LOG.error("Failed to create subtasks. Rabbit running?")
return None
return {"job_id": job['id']} |
def populate_subtasks(self, context, sg, parent_job_id):
"""Produces a list of ports to be updated async."""
db_sg = db_api.security_group_find(context, id=sg, scope=db_api.ONE)
if not db_sg:
return None
ports = db_api.sg_gather_associated_ports(context, db_sg)
if len(ports) == 0:
return {"ports": 0}
for port in ports:
job_body = dict(action="update port %s" % port['id'],
tenant_id=db_sg['tenant_id'],
resource_id=port['id'],
parent_id=parent_job_id)
job_body = dict(job=job_body)
job = job_api.create_job(context.elevated(), job_body)
rpc_consumer = QuarkSGAsyncConsumerClient()
try:
rpc_consumer.update_port(context, port['id'], job['id'])
except om_exc.MessagingTimeout:
# TODO(roaet): Not too sure what can be done here other than
# updating the job as a failure?
LOG.error("Failed to update port. Rabbit running?")
return None |
def update_ports_for_sg(self, context, portid, jobid):
"""Updates the ports through redis."""
port = db_api.port_find(context, id=portid, scope=db_api.ONE)
if not port:
LOG.warning("Port not found")
return
net_driver = port_api._get_net_driver(port.network, port=port)
base_net_driver = port_api._get_net_driver(port.network)
sg_list = [sg for sg in port.security_groups]
success = False
error = None
retries = 3
retry_delay = 2
for retry in xrange(retries):
try:
net_driver.update_port(context, port_id=port["backend_key"],
mac_address=port["mac_address"],
device_id=port["device_id"],
base_net_driver=base_net_driver,
security_groups=sg_list)
success = True
error = None
break
except Exception as error:
LOG.warning("Could not connect to redis, but retrying soon")
time.sleep(retry_delay)
status_str = ""
if not success:
status_str = "Port %s update failed after %d tries. Error: %s" % (
portid, retries, error)
update_body = dict(completed=True, status=status_str)
update_body = dict(job=update_body)
job_api.update_job(context.elevated(), jobid, update_body) |
def sg_gather_associated_ports(context, group):
"""Gather all ports associated to security group.
Returns:
* list, or None
"""
if not group:
return None
if not hasattr(group, "ports") or len(group.ports) <= 0:
return []
return group.ports |
def security_group_rule_update(context, rule, **kwargs):
'''Updates a security group rule.
NOTE(alexm) this is non-standard functionality.
'''
rule.update(kwargs)
context.session.add(rule)
return rule |
def segment_allocation_find(context, lock_mode=False, **filters):
"""Query for segment allocations."""
range_ids = filters.pop("segment_allocation_range_ids", None)
query = context.session.query(models.SegmentAllocation)
if lock_mode:
query = query.with_lockmode("update")
query = query.filter_by(**filters)
# Optionally filter by given list of range ids
if range_ids:
query.filter(
models.SegmentAllocation.segment_allocation_range_id.in_(
range_ids))
return query |
def get_resources(cls):
"""Returns Ext Resources."""
controller = RoutesController(directory.get_plugin())
return [extensions.ResourceExtension(
Routes.get_alias(),
controller)] |
def send(self, s):
"""
Sends the given command to Niko Home Control and returns the output of
the system.
Aliases: write, put, sendall, send_all
"""
self._socket.send(s.encode())
return self.read() |
def if_(*args):
"""Implements the 'if' operator with support for multiple elseif-s."""
for i in range(0, len(args) - 1, 2):
if args[i]:
return args[i + 1]
if len(args) % 2:
return args[-1]
else:
return None |
def soft_equals(a, b):
"""Implements the '==' operator, which does type JS-style coertion."""
if isinstance(a, str) or isinstance(b, str):
return str(a) == str(b)
if isinstance(a, bool) or isinstance(b, bool):
return bool(a) is bool(b)
return a == b |
def hard_equals(a, b):
"""Implements the '===' operator."""
if type(a) != type(b):
return False
return a == b |
def less(a, b, *args):
"""Implements the '<' operator with JS-style type coertion."""
types = set([type(a), type(b)])
if float in types or int in types:
try:
a, b = float(a), float(b)
except TypeError:
# NaN
return False
return a < b and (not args or less(b, *args)) |
def less_or_equal(a, b, *args):
"""Implements the '<=' operator with JS-style type coertion."""
return (
less(a, b) or soft_equals(a, b)
) and (not args or less_or_equal(b, *args)) |
def to_numeric(arg):
"""
Converts a string either to int or to float.
This is important, because e.g. {"!==": [{"+": "0"}, 0.0]}
"""
if isinstance(arg, str):
if '.' in arg:
return float(arg)
else:
return int(arg)
return arg |
def minus(*args):
"""Also, converts either to ints or to floats."""
if len(args) == 1:
return -to_numeric(args[0])
return to_numeric(args[0]) - to_numeric(args[1]) |
def merge(*args):
"""Implements the 'merge' operator for merging lists."""
ret = []
for arg in args:
if isinstance(arg, list) or isinstance(arg, tuple):
ret += list(arg)
else:
ret.append(arg)
return ret |
def get_var(data, var_name, not_found=None):
"""Gets variable value from data dictionary."""
try:
for key in str(var_name).split('.'):
try:
data = data[key]
except TypeError:
data = data[int(key)]
except (KeyError, TypeError, ValueError):
return not_found
else:
return data |
def missing(data, *args):
"""Implements the missing operator for finding missing variables."""
not_found = object()
if args and isinstance(args[0], list):
args = args[0]
ret = []
for arg in args:
if get_var(data, arg, not_found) is not_found:
ret.append(arg)
return ret |
def missing_some(data, min_required, args):
"""Implements the missing_some operator for finding missing variables."""
if min_required < 1:
return []
found = 0
not_found = object()
ret = []
for arg in args:
if get_var(data, arg, not_found) is not_found:
ret.append(arg)
else:
found += 1
if found >= min_required:
return []
return ret |
def jsonLogic(tests, data=None):
"""Executes the json-logic with given data."""
# You've recursed to a primitive, stop!
if tests is None or not isinstance(tests, dict):
return tests
data = data or {}
operator = list(tests.keys())[0]
values = tests[operator]
# Easy syntax for unary operators, like {"var": "x"} instead of strict
# {"var": ["x"]}
if not isinstance(values, list) and not isinstance(values, tuple):
values = [values]
# Recursion!
values = [jsonLogic(val, data) for val in values]
if operator == 'var':
return get_var(data, *values)
if operator == 'missing':
return missing(data, *values)
if operator == 'missing_some':
return missing_some(data, *values)
if operator not in operations:
raise ValueError("Unrecognized operation %s" % operator)
return operations[operator](*values) |
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