1 from mininet
.link
import Link
3 from resources
import *
4 from docker
import DockerClient
9 import ip_handler
as IP
12 LOG
= logging
.getLogger("api.openstack.compute")
15 class HeatApiStackInvalidException(Exception):
17 Exception thrown when a submitted stack is invalid.
20 def __init__(self
, value
):
24 return repr(self
.value
)
27 class OpenstackCompute(object):
29 This class is a datacenter specific compute object that tracks all containers that are running in a datacenter,
30 as well as networks and configured ports.
31 It has some stack dependet logic and can check if a received stack is valid.
33 It also handles start and stop of containers.
39 self
.computeUnits
= dict()
45 self
.port_pairs
= dict()
46 self
.port_pair_groups
= dict()
47 self
.flow_classifiers
= dict()
48 self
.port_chains
= dict()
49 self
.compute_nets
= dict()
50 self
.dcli
= DockerClient(base_url
='unix://var/run/docker.sock')
55 Updates the known images. Asks the docker daemon for a list of all known images and returns
58 :return: Returns the new image dictionary.
61 for image
in self
.dcli
.images
.list():
62 if len(image
.tags
) > 0:
64 t
= t
.replace(":latest", "") # only use short tag names for OSM compatibility
65 if t
not in self
._images
:
66 self
._images
[t
] = Image(t
)
69 def add_stack(self
, stack
):
71 Adds a new stack to the compute node.
73 :param stack: Stack dictionary.
74 :type stack: :class:`heat.resources.stack`
76 if not self
.check_stack(stack
):
77 self
.clean_broken_stack(stack
)
78 raise HeatApiStackInvalidException("Stack did not pass validity checks")
79 self
.stacks
[stack
.id] = stack
81 def clean_broken_stack(self
, stack
):
82 for port
in stack
.ports
.values():
83 if port
.id in self
.ports
:
84 del self
.ports
[port
.id]
85 for server
in stack
.servers
.values():
86 if server
.id in self
.computeUnits
:
87 del self
.computeUnits
[server
.id]
88 for net
in stack
.nets
.values():
89 if net
.id in self
.nets
:
92 def check_stack(self
, stack
):
94 Checks all dependencies of all servers, ports and routers and their most important parameters.
96 :param stack: A reference of the stack that should be checked.
97 :type stack: :class:`heat.resources.stack`
98 :return: * *True*: If the stack is completely fine.
103 for server
in stack
.servers
.values():
104 for port_name
in server
.port_names
:
105 if port_name
not in stack
.ports
:
106 LOG
.warning("Server %s of stack %s has a port named %s that is not known." %
107 (server
.name
, stack
.stack_name
, port_name
))
108 everything_ok
= False
109 if server
.image
is None:
110 LOG
.warning("Server %s holds no image." % (server
.name
))
111 everything_ok
= False
112 if server
.command
is None:
113 LOG
.warning("Server %s holds no command." % (server
.name
))
114 everything_ok
= False
115 for port
in stack
.ports
.values():
116 if port
.net_name
not in stack
.nets
:
117 LOG
.warning("Port %s of stack %s has a network named %s that is not known." %
118 (port
.name
, stack
.stack_name
, port
.net_name
))
119 everything_ok
= False
120 if port
.intf_name
is None:
121 LOG
.warning("Port %s has no interface name." % (port
.name
))
122 everything_ok
= False
123 if port
.ip_address
is None:
124 LOG
.warning("Port %s has no IP address." % (port
.name
))
125 everything_ok
= False
126 for router
in stack
.routers
.values():
127 for subnet_name
in router
.subnet_names
:
129 for net
in stack
.nets
.values():
130 if net
.subnet_name
== subnet_name
:
134 LOG
.warning("Router %s of stack %s has a network named %s that is not known." %
135 (router
.name
, stack
.stack_name
, subnet_name
))
136 everything_ok
= False
139 def add_flavor(self
, name
, cpu
, memory
, memory_unit
, storage
, storage_unit
):
141 Adds a flavor to the stack.
143 :param name: Specifies the name of the flavor.
148 :type memory: ``str``
150 :type memory_unit: ``str``
152 :type storage: ``str``
154 :type storage_unit: ``str``
156 flavor
= InstanceFlavor(name
, cpu
, memory
, memory_unit
, storage
, storage_unit
)
157 self
.flavors
[flavor
.name
] = flavor
160 def deploy_stack(self
, stackid
):
162 Deploys the stack and starts the emulation.
164 :param stackid: An UUID str of the stack
165 :type stackid: ``str``
166 :return: * *False*: If the Datacenter is None
173 stack
= self
.stacks
[stackid
]
174 self
.update_compute_dicts(stack
)
176 # Create the networks first
177 for server
in stack
.servers
.values():
178 self
._start
_compute
(server
)
181 def delete_stack(self
, stack_id
):
183 Delete a stack and all its components.
185 :param stack_id: An UUID str of the stack
186 :type stack_id: ``str``
187 :return: * *False*: If the Datacenter is None
194 # Stop all servers and their links of this stack
195 for server
in self
.stacks
[stack_id
].servers
.values():
196 self
.stop_compute(server
)
197 self
.delete_server(server
)
198 for net
in self
.stacks
[stack_id
].nets
.values():
199 self
.delete_network(net
.id)
200 for port
in self
.stacks
[stack_id
].ports
.values():
201 self
.delete_port(port
.id)
203 del self
.stacks
[stack_id
]
206 def update_stack(self
, old_stack_id
, new_stack
):
208 Determines differences within the old and the new stack and deletes, create or changes only parts that
209 differ between the two stacks.
211 :param old_stack_id: The ID of the old stack.
212 :type old_stack_id: ``str``
213 :param new_stack: A reference of the new stack.
214 :type new_stack: :class:`heat.resources.stack`
215 :return: * *True*: if the old stack could be updated to the new stack without any error.
219 LOG
.debug("updating stack {} with new_stack {}".format(old_stack_id
, new_stack
))
220 if old_stack_id
not in self
.stacks
:
222 old_stack
= self
.stacks
[old_stack_id
]
225 for server
in old_stack
.servers
.values():
226 if server
.name
in new_stack
.servers
:
227 new_stack
.servers
[server
.name
].id = server
.id
228 for net
in old_stack
.nets
.values():
229 if net
.name
in new_stack
.nets
:
230 new_stack
.nets
[net
.name
].id = net
.id
231 for subnet
in new_stack
.nets
.values():
232 if subnet
.subnet_name
== net
.subnet_name
:
233 subnet
.subnet_id
= net
.subnet_id
235 for port
in old_stack
.ports
.values():
236 if port
.name
in new_stack
.ports
:
237 new_stack
.ports
[port
.name
].id = port
.id
238 for router
in old_stack
.routers
.values():
239 if router
.name
in new_stack
.routers
:
240 new_stack
.routers
[router
.name
].id = router
.id
242 # Update the compute dicts to now contain the new_stack components
243 self
.update_compute_dicts(new_stack
)
245 self
.update_ip_addresses(old_stack
, new_stack
)
247 # Update all interface names - after each port has the correct UUID!!
248 for port
in new_stack
.ports
.values():
249 port
.create_intf_name()
251 if not self
.check_stack(new_stack
):
254 # Remove unnecessary networks
255 for net
in old_stack
.nets
.values():
256 if not net
.name
in new_stack
.nets
:
257 self
.delete_network(net
.id)
259 # Remove all unnecessary servers
260 for server
in old_stack
.servers
.values():
261 if server
.name
in new_stack
.servers
:
262 if not server
.compare_attributes(new_stack
.servers
[server
.name
]):
263 self
.stop_compute(server
)
265 # Delete unused and changed links
266 for port_name
in server
.port_names
:
267 if port_name
in old_stack
.ports
and port_name
in new_stack
.ports
:
268 if not old_stack
.ports
.get(port_name
) == new_stack
.ports
.get(port_name
):
269 my_links
= self
.dc
.net
.links
270 for link
in my_links
:
271 if str(link
.intf1
) == old_stack
.ports
[port_name
].intf_name
and \
272 str(link
.intf1
.ip
) == \
273 old_stack
.ports
[port_name
].ip_address
.split('/')[0]:
274 self
._remove
_link
(server
.name
, link
)
277 self
._add
_link
(server
.name
,
278 new_stack
.ports
[port_name
].ip_address
,
279 new_stack
.ports
[port_name
].intf_name
,
280 new_stack
.ports
[port_name
].net_name
)
283 my_links
= self
.dc
.net
.links
284 for link
in my_links
:
285 if str(link
.intf1
) == old_stack
.ports
[port_name
].intf_name
and \
286 str(link
.intf1
.ip
) == old_stack
.ports
[port_name
].ip_address
.split('/')[0]:
287 self
._remove
_link
(server
.name
, link
)
291 for port_name
in new_stack
.servers
[server
.name
].port_names
:
292 if port_name
not in server
.port_names
:
293 self
._add
_link
(server
.name
,
294 new_stack
.ports
[port_name
].ip_address
,
295 new_stack
.ports
[port_name
].intf_name
,
296 new_stack
.ports
[port_name
].net_name
)
298 self
.stop_compute(server
)
300 # Start all new servers
301 for server
in new_stack
.servers
.values():
302 if server
.name
not in self
.dc
.containers
:
303 self
._start
_compute
(server
)
305 server
.emulator_compute
= self
.dc
.containers
.get(server
.name
)
307 del self
.stacks
[old_stack_id
]
308 self
.stacks
[new_stack
.id] = new_stack
311 def update_ip_addresses(self
, old_stack
, new_stack
):
313 Updates the subnet and the port IP addresses - which should always be in this order!
315 :param old_stack: The currently running stack
316 :type old_stack: :class:`heat.resources.stack`
317 :param new_stack: The new created stack
318 :type new_stack: :class:`heat.resources.stack`
320 self
.update_subnet_cidr(old_stack
, new_stack
)
321 self
.update_port_addresses(old_stack
, new_stack
)
323 def update_port_addresses(self
, old_stack
, new_stack
):
325 Updates the port IP addresses. First resets all issued addresses. Then get all IP addresses from the old
326 stack and sets them to the same ports in the new stack. Finally all new or changed instances will get new
329 :param old_stack: The currently running stack
330 :type old_stack: :class:`heat.resources.stack`
331 :param new_stack: The new created stack
332 :type new_stack: :class:`heat.resources.stack`
334 for net
in new_stack
.nets
.values():
335 net
.reset_issued_ip_addresses()
337 for old_port
in old_stack
.ports
.values():
338 for port
in new_stack
.ports
.values():
339 if port
.compare_attributes(old_port
):
340 for net
in new_stack
.nets
.values():
341 if net
.name
== port
.net_name
:
342 if net
.assign_ip_address(old_port
.ip_address
, port
.name
):
343 port
.ip_address
= old_port
.ip_address
344 port
.mac_address
= old_port
.mac_address
346 port
.ip_address
= net
.get_new_ip_address(port
.name
)
348 for port
in new_stack
.ports
.values():
349 for net
in new_stack
.nets
.values():
350 if port
.net_name
== net
.name
and not net
.is_my_ip(port
.ip_address
, port
.name
):
351 port
.ip_address
= net
.get_new_ip_address(port
.name
)
353 def update_subnet_cidr(self
, old_stack
, new_stack
):
355 Updates the subnet IP addresses. If the new stack contains subnets from the old stack it will take those
356 IP addresses. Otherwise it will create new IP addresses for the subnet.
358 :param old_stack: The currently running stack
359 :type old_stack: :class:`heat.resources.stack`
360 :param new_stack: The new created stack
361 :type new_stack: :class:`heat.resources.stack`
363 for old_subnet
in old_stack
.nets
.values():
364 IP
.free_cidr(old_subnet
.get_cidr(), old_subnet
.subnet_id
)
366 for subnet
in new_stack
.nets
.values():
368 for old_subnet
in old_stack
.nets
.values():
369 if subnet
.subnet_name
== old_subnet
.subnet_name
:
370 if IP
.assign_cidr(old_subnet
.get_cidr(), subnet
.subnet_id
):
371 subnet
.set_cidr(old_subnet
.get_cidr())
373 for subnet
in new_stack
.nets
.values():
374 if IP
.is_cidr_issued(subnet
.get_cidr()):
377 cird
= IP
.get_new_cidr(subnet
.subnet_id
)
378 subnet
.set_cidr(cird
)
381 def update_compute_dicts(self
, stack
):
383 Update and add all stack components tho the compute dictionaries.
385 :param stack: A stack reference, to get all required components.
386 :type stack: :class:`heat.resources.stack`
388 for server
in stack
.servers
.values():
389 self
.computeUnits
[server
.id] = server
390 if isinstance(server
.flavor
, dict):
391 self
.add_flavor(server
.flavor
['flavorName'],
392 server
.flavor
['vcpu'],
393 server
.flavor
['ram'], 'MB',
394 server
.flavor
['storage'], 'GB')
395 server
.flavor
= server
.flavor
['flavorName']
396 for router
in stack
.routers
.values():
397 self
.routers
[router
.id] = router
398 for net
in stack
.nets
.values():
399 self
.nets
[net
.id] = net
400 for port
in stack
.ports
.values():
401 self
.ports
[port
.id] = port
403 def _start_compute(self
, server
):
405 Starts a new compute object (docker container) inside the emulator.
406 Should only be called by stack modifications and not directly.
408 :param server: Specifies the compute resource.
409 :type server: :class:`heat.resources.server`
411 LOG
.debug("Starting new compute resources %s" % server
.name
)
414 for port_name
in server
.port_names
:
415 network_dict
= dict()
416 port
= self
.find_port_by_name_or_id(port_name
)
418 network_dict
['id'] = port
.intf_name
419 network_dict
['ip'] = port
.ip_address
420 network_dict
[network_dict
['id']] = self
.find_network_by_name_or_id(port
.net_name
).name
421 network
.append(network_dict
)
422 self
.compute_nets
[server
.name
] = network
423 c
= self
.dc
.startCompute(server
.name
, image
=server
.image
, command
=server
.command
,
424 network
=network
, flavor_name
=server
.flavor
,
425 properties
=server
.properties
)
426 server
.emulator_compute
= c
428 for intf
in c
.intfs
.values():
429 for port_name
in server
.port_names
:
430 port
= self
.find_port_by_name_or_id(port_name
)
432 if intf
.name
== port
.intf_name
:
433 # wait up to one second for the intf to come up
434 self
.timeout_sleep(intf
.isUp
, 1)
435 if port
.mac_address
is not None:
436 intf
.setMAC(port
.mac_address
)
438 port
.mac_address
= intf
.MAC()
440 # Start the real emulator command now as specified in the dockerfile
442 config
= c
.dcinfo
.get("Config", dict())
443 env
= config
.get("Env", list())
445 if "SON_EMU_CMD=" in env_var
:
446 cmd
= str(env_var
.split("=")[1])
447 server
.son_emu_command
= cmd
448 # execute command in new thread to ensure that GK is not blocked by VNF
449 t
= threading
.Thread(target
=c
.cmdPrint
, args
=(cmd
,))
453 def stop_compute(self
, server
):
455 Determines which links should be removed before removing the server itself.
457 :param server: The server that should be removed
458 :type server: ``heat.resources.server``
460 LOG
.debug("Stopping container %s with full name %s" % (server
.name
, server
.full_name
))
462 for port_name
in server
.port_names
:
463 link_names
.append(self
.find_port_by_name_or_id(port_name
).intf_name
)
464 my_links
= self
.dc
.net
.links
465 for link
in my_links
:
466 if str(link
.intf1
) in link_names
:
467 # Remove all self created links that connect the server to the main switch
468 self
._remove
_link
(server
.name
, link
)
470 # Stop the server and the remaining connection to the datacenter switch
471 self
.dc
.stopCompute(server
.name
)
472 # Only now delete all its ports and the server itself
473 for port_name
in server
.port_names
:
474 self
.delete_port(port_name
)
475 self
.delete_server(server
)
477 def find_server_by_name_or_id(self
, name_or_id
):
479 Tries to find the server by ID and if this does not succeed then tries to find it via name.
481 :param name_or_id: UUID or name of the server.
482 :type name_or_id: ``str``
483 :return: Returns the server reference if it was found or None
484 :rtype: :class:`heat.resources.server`
486 if name_or_id
in self
.computeUnits
:
487 return self
.computeUnits
[name_or_id
]
489 for server
in self
.computeUnits
.values():
490 if server
.name
== name_or_id
or server
.template_name
== name_or_id
or server
.full_name
== name_or_id
:
494 def create_server(self
, name
, stack_operation
=False):
496 Creates a server with the specified name. Raises an exception when a server with the given name already
499 :param name: Name of the new server.
501 :param stack_operation: Allows the heat parser to create modules without adapting the current emulation.
502 :type stack_operation: ``bool``
503 :return: Returns the created server.
504 :rtype: :class:`heat.resources.server`
506 if self
.find_server_by_name_or_id(name
) is not None and not stack_operation
:
507 raise Exception("Server with name %s already exists." % name
)
508 server
= Server(name
)
509 server
.id = str(uuid
.uuid4())
510 if not stack_operation
:
511 self
.computeUnits
[server
.id] = server
514 def delete_server(self
, server
):
516 Deletes the given server from the stack dictionary and the computeUnits dictionary.
518 :param server: Reference of the server that should be deleted.
519 :type server: :class:`heat.resources.server`
520 :return: * *False*: If the server name is not in the correct format ('datacentername_stackname_servername') \
521 or when no stack with the correct stackname was found.
527 name_parts
= server
.name
.split('_')
528 if len(name_parts
) < 3:
531 for stack
in self
.stacks
.values():
532 if stack
.stack_name
== name_parts
[1]:
533 stack
.servers
.pop(server
.id, None)
534 if self
.computeUnits
.pop(server
.id, None) is None:
538 def find_network_by_name_or_id(self
, name_or_id
):
540 Tries to find the network by ID and if this does not succeed then tries to find it via name.
542 :param name_or_id: UUID or name of the network.
543 :type name_or_id: ``str``
544 :return: Returns the network reference if it was found or None
545 :rtype: :class:`heat.resources.net`
547 if name_or_id
in self
.nets
:
548 return self
.nets
[name_or_id
]
549 for net
in self
.nets
.values():
550 if net
.name
== name_or_id
:
555 def create_network(self
, name
, stack_operation
=False):
557 Creates a new network with the given name. Raises an exception when a network with the given name already
560 :param name: Name of the new network.
562 :param stack_operation: Allows the heat parser to create modules without adapting the current emulation.
563 :type stack_operation: ``bool``
564 :return: :class:`heat.resources.net`
566 LOG
.debug("Creating network with name %s" % name
)
567 if self
.find_network_by_name_or_id(name
) is not None and not stack_operation
:
568 LOG
.warning("Creating network with name %s failed, as it already exists" % name
)
569 raise Exception("Network with name %s already exists." % name
)
571 network
.id = str(uuid
.uuid4())
572 if not stack_operation
:
573 self
.nets
[network
.id] = network
576 def delete_network(self
, name_or_id
):
578 Deletes the given network.
580 :param name_or_id: Name or UUID of the network.
581 :type name_or_id: ``str``
583 net
= self
.find_network_by_name_or_id(name_or_id
)
585 raise Exception("Network with name or id %s does not exists." % name_or_id
)
587 for stack
in self
.stacks
.values():
588 stack
.nets
.pop(net
.name
, None)
590 self
.nets
.pop(net
.id, None)
592 def create_port(self
, name
, stack_operation
=False):
594 Creates a new port with the given name. Raises an exception when a port with the given name already
597 :param name: Name of the new port.
599 :param stack_operation: Allows the heat parser to create modules without adapting the current emulation.
600 :type stack_operation: ``bool``
601 :return: Returns the created port.
602 :rtype: :class:`heat.resources.port`
604 port
= self
.find_port_by_name_or_id(name
)
605 if port
is not None and not stack_operation
:
606 LOG
.warning("Creating port with name %s failed, as it already exists" % name
)
607 raise Exception("Port with name %s already exists." % name
)
608 LOG
.debug("Creating port with name %s" % name
)
610 if not stack_operation
:
611 self
.ports
[port
.id] = port
612 port
.create_intf_name()
615 def find_port_by_name_or_id(self
, name_or_id
):
617 Tries to find the port by ID and if this does not succeed then tries to find it via name.
619 :param name_or_id: UUID or name of the network.
620 :type name_or_id: ``str``
621 :return: Returns the port reference if it was found or None
622 :rtype: :class:`heat.resources.port`
624 if name_or_id
in self
.ports
:
625 return self
.ports
[name_or_id
]
626 for port
in self
.ports
.values():
627 if port
.name
== name_or_id
or port
.template_name
== name_or_id
:
632 def delete_port(self
, name_or_id
):
634 Deletes the given port. Raises an exception when the port was not found!
636 :param name_or_id: UUID or name of the port.
637 :type name_or_id: ``str``
639 port
= self
.find_port_by_name_or_id(name_or_id
)
641 raise Exception("Port with name or id %s does not exists." % name_or_id
)
643 my_links
= self
.dc
.net
.links
644 for link
in my_links
:
645 if str(link
.intf1
) == port
.intf_name
and \
646 str(link
.intf1
.ip
) == port
.ip_address
.split('/')[0]:
647 self
._remove
_link
(link
.intf1
.node
.name
, link
)
650 self
.ports
.pop(port
.id, None)
651 for stack
in self
.stacks
.values():
652 stack
.ports
.pop(port
.name
, None)
654 def create_port_pair(self
, name
, stack_operation
=False):
656 Creates a new port pair with the given name. Raises an exception when a port pair with the given name already
659 :param name: Name of the new port pair.
661 :param stack_operation: Allows the heat parser to create modules without adapting the current emulation.
662 :type stack_operation: ``bool``
663 :return: Returns the created port pair.
664 :rtype: :class:`openstack.resources.port_pair`
666 port_pair
= self
.find_port_pair_by_name_or_id(name
)
667 if port_pair
is not None and not stack_operation
:
668 logging
.warning("Creating port pair with name %s failed, as it already exists" % name
)
669 raise Exception("Port pair with name %s already exists." % name
)
670 logging
.debug("Creating port pair with name %s" % name
)
671 port_pair
= PortPair(name
)
672 if not stack_operation
:
673 self
.port_pairs
[port_pair
.id] = port_pair
676 def find_port_pair_by_name_or_id(self
, name_or_id
):
678 Tries to find the port pair by ID and if this does not succeed then tries to find it via name.
680 :param name_or_id: UUID or name of the port pair.
681 :type name_or_id: ``str``
682 :return: Returns the port pair reference if it was found or None
683 :rtype: :class:`openstack.resources.port_pair`
685 if name_or_id
in self
.port_pairs
:
686 return self
.port_pairs
[name_or_id
]
687 for port_pair
in self
.port_pairs
.values():
688 if port_pair
.name
== name_or_id
:
693 def delete_port_pair(self
, name_or_id
):
695 Deletes the given port pair. Raises an exception when the port pair was not found!
697 :param name_or_id: UUID or name of the port pair.
698 :type name_or_id: ``str``
700 port_pair
= self
.find_port_pair_by_name_or_id(name_or_id
)
701 if port_pair
is None:
702 raise Exception("Port pair with name or id %s does not exists." % name_or_id
)
704 self
.port_pairs
.pop(port_pair
.id, None)
706 def create_port_pair_group(self
, name
, stack_operation
=False):
708 Creates a new port pair group with the given name. Raises an exception when a port pair group
709 with the given name already exists!
711 :param name: Name of the new port pair group.
713 :param stack_operation: Allows the heat parser to create modules without adapting the current emulation.
714 :type stack_operation: ``bool``
715 :return: Returns the created port pair group .
716 :rtype: :class:`openstack.resources.port_pair_group`
718 port_pair_group
= self
.find_port_pair_group_by_name_or_id(name
)
719 if port_pair_group
is not None and not stack_operation
:
720 logging
.warning("Creating port pair group with name %s failed, as it already exists" % name
)
721 raise Exception("Port pair group with name %s already exists." % name
)
722 logging
.debug("Creating port pair group with name %s" % name
)
723 port_pair_group
= PortPairGroup(name
)
724 if not stack_operation
:
725 self
.port_pair_groups
[port_pair_group
.id] = port_pair_group
726 return port_pair_group
728 def find_port_pair_group_by_name_or_id(self
, name_or_id
):
730 Tries to find the port pair group by ID and if this does not succeed then tries to find it via name.
732 :param name_or_id: UUID or name of the port pair group.
733 :type name_or_id: ``str``
734 :return: Returns the port pair group reference if it was found or None
735 :rtype: :class:`openstack.resources.port_pair_group`
737 if name_or_id
in self
.port_pair_groups
:
738 return self
.port_pair_groups
[name_or_id
]
739 for port_pair_group
in self
.port_pair_groups
.values():
740 if port_pair_group
.name
== name_or_id
:
741 return port_pair_group
745 def delete_port_pair_group(self
, name_or_id
):
747 Deletes the given port pair group. Raises an exception when the port pair group was not found!
749 :param name_or_id: UUID or name of the port pair group.
750 :type name_or_id: ``str``
752 port_pair_group
= self
.find_port_pair_group_by_name_or_id(name_or_id
)
753 if port_pair_group
is None:
754 raise Exception("Port pair with name or id %s does not exists." % name_or_id
)
756 self
.port_pair_groups
.pop(port_pair_group
.id, None)
758 def create_port_chain(self
, name
, stack_operation
=False):
760 Creates a new port chain with the given name. Raises an exception when a port chain with the given name already
763 :param name: Name of the new port chain
765 :param stack_operation: Allows the heat parser to create modules without adapting the current emulation.
766 :type stack_operation: ``bool``
767 :return: Returns the created port chain.
768 :rtype: :class:`openstack.resources.port_chain.PortChain`
770 port_chain
= self
.find_port_chain_by_name_or_id(name
)
771 if port_chain
is not None and not stack_operation
:
772 logging
.warning("Creating port chain with name %s failed, as it already exists" % name
)
773 raise Exception("Port chain with name %s already exists." % name
)
774 logging
.debug("Creating port chain with name %s" % name
)
775 port_chain
= PortChain(name
)
776 if not stack_operation
:
777 self
.port_chains
[port_chain
.id] = port_chain
780 def find_port_chain_by_name_or_id(self
, name_or_id
):
782 Tries to find the port chain by ID and if this does not succeed then tries to find it via name.
784 :param name_or_id: UUID or name of the port chain.
785 :type name_or_id: ``str``
786 :return: Returns the port chain reference if it was found or None
787 :rtype: :class:`openstack.resources.port_chain.PortChain`
789 if name_or_id
in self
.port_chains
:
790 return self
.port_chains
[name_or_id
]
791 for port_chain
in self
.port_chains
.values():
792 if port_chain
.name
== name_or_id
:
796 def delete_port_chain(self
, name_or_id
):
798 Deletes the given port chain. Raises an exception when the port chain was not found!
800 :param name_or_id: UUID or name of the port chain.
801 :type name_or_id: ``str``
803 port_chain
= self
.find_port_chain_by_name_or_id(name_or_id
)
804 port_chain
.uninstall(self
)
805 if port_chain
is None:
806 raise Exception("Port chain with name or id %s does not exists." % name_or_id
)
808 self
.port_chains
.pop(port_chain
.id, None)
810 def create_flow_classifier(self
, name
, stack_operation
=False):
812 Creates a new flow classifier with the given name. Raises an exception when a flow classifier with the given name already
815 :param name: Name of the new flow classifier.
817 :param stack_operation: Allows the heat parser to create modules without adapting the current emulation.
818 :type stack_operation: ``bool``
819 :return: Returns the created flow classifier.
820 :rtype: :class:`openstack.resources.flow_classifier`
822 flow_classifier
= self
.find_flow_classifier_by_name_or_id(name
)
823 if flow_classifier
is not None and not stack_operation
:
824 logging
.warning("Creating flow classifier with name %s failed, as it already exists" % name
)
825 raise Exception("Flow classifier with name %s already exists." % name
)
826 logging
.debug("Creating flow classifier with name %s" % name
)
827 flow_classifier
= FlowClassifier(name
)
828 if not stack_operation
:
829 self
.flow_classifiers
[flow_classifier
.id] = flow_classifier
830 return flow_classifier
832 def find_flow_classifier_by_name_or_id(self
, name_or_id
):
834 Tries to find the flow classifier by ID and if this does not succeed then tries to find it via name.
836 :param name_or_id: UUID or name of the flow classifier.
837 :type name_or_id: ``str``
838 :return: Returns the flow classifier reference if it was found or None
839 :rtype: :class:`openstack.resources.flow_classifier`
841 if name_or_id
in self
.flow_classifiers
:
842 return self
.flow_classifiers
[name_or_id
]
843 for flow_classifier
in self
.flow_classifiers
.values():
844 if flow_classifier
.name
== name_or_id
:
845 return flow_classifier
849 def delete_flow_classifier(self
, name_or_id
):
851 Deletes the given flow classifier. Raises an exception when the flow classifier was not found!
853 :param name_or_id: UUID or name of the flow classifier.
854 :type name_or_id: ``str``
856 flow_classifier
= self
.find_flow_classifier_by_name_or_id(name_or_id
)
857 if flow_classifier
is None:
858 raise Exception("Flow classifier with name or id %s does not exists." % name_or_id
)
860 self
.flow_classifiers
.pop(flow_classifier
.id, None)
862 def _add_link(self
, node_name
, ip_address
, link_name
, net_name
):
864 Adds a new link between datacenter switch and the node with the given name.
866 :param node_name: Name of the required node.
867 :type node_name: ``str``
868 :param ip_address: IP-Address of the node.
869 :type ip_address: ``str``
870 :param link_name: Link name.
871 :type link_name: ``str``
872 :param net_name: Network name.
873 :type net_name: ``str``
875 node
= self
.dc
.net
.get(node_name
)
876 params
= {'params1': {'ip': ip_address
,
878 link_name
: net_name
},
879 'intfName1': link_name
,
881 link
= self
.dc
.net
.addLink(node
, self
.dc
.switch
, **params
)
882 OpenstackCompute
.timeout_sleep(link
.intf1
.isUp
, 1)
884 def _remove_link(self
, server_name
, link
):
886 Removes a link between server and datacenter switch.
888 :param server_name: Specifies the server where the link starts.
889 :type server_name: ``str``
890 :param link: A reference of the link which should be removed.
891 :type link: :class:`mininet.link`
893 self
.dc
.switch
.detach(link
.intf2
)
894 del self
.dc
.switch
.intfs
[self
.dc
.switch
.ports
[link
.intf2
]]
895 del self
.dc
.switch
.ports
[link
.intf2
]
896 del self
.dc
.switch
.nameToIntf
[link
.intf2
.name
]
897 self
.dc
.net
.removeLink(link
=link
)
898 for intf_key
in self
.dc
.net
[server_name
].intfs
.keys():
899 if self
.dc
.net
[server_name
].intfs
[intf_key
].link
== link
:
900 self
.dc
.net
[server_name
].intfs
[intf_key
].delete()
901 del self
.dc
.net
[server_name
].intfs
[intf_key
]
904 def timeout_sleep(function
, max_sleep
):
906 This function will execute a function all 0.1 seconds until it successfully returns.
907 Will return after `max_sleep` seconds if not successful.
909 :param function: The function to execute. Should return true if done.
910 :type function: ``function``
911 :param max_sleep: Max seconds to sleep. 1 equals 1 second.
912 :type max_sleep: ``float``
914 current_time
= time
.time()
915 stop_time
= current_time
+ max_sleep
916 while not function() and current_time
< stop_time
:
917 current_time
= time
.time()