39ce04df45ce8d17f1127e0f77f81bc035f6c42b
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
)
423 self
.compute_nets
[server
.name
] = network
425 c
= self
.dc
.startCompute(server
.name
, image
=server
.image
, command
=server
.command
,
426 network
=network
, flavor_name
=server
.flavor
,
427 properties
=server
.properties
)
428 server
.emulator_compute
= c
430 for intf
in c
.intfs
.values():
431 for port_name
in server
.port_names
:
432 port
= self
.find_port_by_name_or_id(port_name
)
434 if intf
.name
== port
.intf_name
:
435 # wait up to one second for the intf to come up
436 self
.timeout_sleep(intf
.isUp
, 1)
437 if port
.mac_address
is not None:
438 intf
.setMAC(port
.mac_address
)
440 port
.mac_address
= intf
.MAC()
442 # Start the real emulator command now as specified in the dockerfile
444 config
= c
.dcinfo
.get("Config", dict())
445 env
= config
.get("Env", list())
447 if "SON_EMU_CMD=" in env_var
:
448 cmd
= str(env_var
.split("=")[1])
449 server
.son_emu_command
= cmd
450 # execute command in new thread to ensure that GK is not blocked by VNF
451 t
= threading
.Thread(target
=c
.cmdPrint
, args
=(cmd
,))
455 def stop_compute(self
, server
):
457 Determines which links should be removed before removing the server itself.
459 :param server: The server that should be removed
460 :type server: ``heat.resources.server``
462 LOG
.debug("Stopping container %s with full name %s" % (server
.name
, server
.full_name
))
464 for port_name
in server
.port_names
:
465 link_names
.append(self
.find_port_by_name_or_id(port_name
).intf_name
)
466 my_links
= self
.dc
.net
.links
467 for link
in my_links
:
468 if str(link
.intf1
) in link_names
:
469 # Remove all self created links that connect the server to the main switch
470 self
._remove
_link
(server
.name
, link
)
472 # Stop the server and the remaining connection to the datacenter switch
473 self
.dc
.stopCompute(server
.name
)
474 # Only now delete all its ports and the server itself
475 for port_name
in server
.port_names
:
476 self
.delete_port(port_name
)
477 self
.delete_server(server
)
479 def find_server_by_name_or_id(self
, name_or_id
):
481 Tries to find the server by ID and if this does not succeed then tries to find it via name.
483 :param name_or_id: UUID or name of the server.
484 :type name_or_id: ``str``
485 :return: Returns the server reference if it was found or None
486 :rtype: :class:`heat.resources.server`
488 if name_or_id
in self
.computeUnits
:
489 return self
.computeUnits
[name_or_id
]
491 if self
._shorten
_server
_name
(name_or_id
) in self
.computeUnits
:
492 return self
.computeUnits
[name_or_id
]
494 for server
in self
.computeUnits
.values():
495 if server
.name
== name_or_id
or server
.template_name
== name_or_id
or server
.full_name
== name_or_id
:
497 if (server
.name
== self
._shorten
_server
_name
(name_or_id
)
498 or server
.template_name
== self
._shorten
_server
_name
(name_or_id
)
499 or server
.full_name
== self
._shorten
_server
_name
(name_or_id
)):
503 def create_server(self
, name
, stack_operation
=False):
505 Creates a server with the specified name. Raises an exception when a server with the given name already
508 :param name: Name of the new server.
510 :param stack_operation: Allows the heat parser to create modules without adapting the current emulation.
511 :type stack_operation: ``bool``
512 :return: Returns the created server.
513 :rtype: :class:`heat.resources.server`
515 if self
.find_server_by_name_or_id(name
) is not None and not stack_operation
:
516 raise Exception("Server with name %s already exists." % name
)
517 safe_name
= self
._shorten
_server
_name
(name
)
518 server
= Server(safe_name
)
519 server
.id = str(uuid
.uuid4())
520 if not stack_operation
:
521 self
.computeUnits
[server
.id] = server
524 def _shorten_server_name(self
, name
, char_limit
=9):
526 Docker does not like too long instance names.
527 This function provides a shorter name if needed
529 # fix for NetSoft'17 demo
530 # TODO remove this after the demo
531 if "http" in name
or "apache" in name
:
533 elif "l4fw" in name
or "socat" in name
:
535 elif "proxy" in name
or "squid" in name
:
537 # this is a ugly fix, but we cannot do better for now (interface names are to long)
538 if len(name
) > char_limit
:
539 LOG
.info("Long server name: {}".format(name
))
540 # construct a short name
541 name
= name
.strip("-_ .")
542 name
= name
.replace("_vnf", "")
546 name
= name
[-char_limit
:].strip("-_ .")
547 LOG
.info("Short server name: {}".format(name
))
551 def delete_server(self
, server
):
553 Deletes the given server from the stack dictionary and the computeUnits dictionary.
555 :param server: Reference of the server that should be deleted.
556 :type server: :class:`heat.resources.server`
557 :return: * *False*: If the server name is not in the correct format ('datacentername_stackname_servername') \
558 or when no stack with the correct stackname was found.
564 name_parts
= server
.name
.split('_')
565 if len(name_parts
) < 3:
568 for stack
in self
.stacks
.values():
569 if stack
.stack_name
== name_parts
[1]:
570 stack
.servers
.pop(server
.id, None)
571 if self
.computeUnits
.pop(server
.id, None) is None:
575 def find_network_by_name_or_id(self
, name_or_id
):
577 Tries to find the network by ID and if this does not succeed then tries to find it via name.
579 :param name_or_id: UUID or name of the network.
580 :type name_or_id: ``str``
581 :return: Returns the network reference if it was found or None
582 :rtype: :class:`heat.resources.net`
584 if name_or_id
in self
.nets
:
585 return self
.nets
[name_or_id
]
586 for net
in self
.nets
.values():
587 if net
.name
== name_or_id
:
592 def create_network(self
, name
, stack_operation
=False):
594 Creates a new network with the given name. Raises an exception when a network with the given name already
597 :param name: Name of the new network.
599 :param stack_operation: Allows the heat parser to create modules without adapting the current emulation.
600 :type stack_operation: ``bool``
601 :return: :class:`heat.resources.net`
603 LOG
.debug("Creating network with name %s" % name
)
604 if self
.find_network_by_name_or_id(name
) is not None and not stack_operation
:
605 LOG
.warning("Creating network with name %s failed, as it already exists" % name
)
606 raise Exception("Network with name %s already exists." % name
)
608 network
.id = str(uuid
.uuid4())
609 if not stack_operation
:
610 self
.nets
[network
.id] = network
613 def delete_network(self
, name_or_id
):
615 Deletes the given network.
617 :param name_or_id: Name or UUID of the network.
618 :type name_or_id: ``str``
620 net
= self
.find_network_by_name_or_id(name_or_id
)
622 raise Exception("Network with name or id %s does not exists." % name_or_id
)
624 for stack
in self
.stacks
.values():
625 stack
.nets
.pop(net
.name
, None)
627 self
.nets
.pop(net
.id, None)
629 def create_port(self
, name
, stack_operation
=False):
631 Creates a new port with the given name. Raises an exception when a port with the given name already
634 :param name: Name of the new port.
636 :param stack_operation: Allows the heat parser to create modules without adapting the current emulation.
637 :type stack_operation: ``bool``
638 :return: Returns the created port.
639 :rtype: :class:`heat.resources.port`
641 port
= self
.find_port_by_name_or_id(name
)
642 if port
is not None and not stack_operation
:
643 LOG
.warning("Creating port with name %s failed, as it already exists" % name
)
644 raise Exception("Port with name %s already exists." % name
)
645 LOG
.debug("Creating port with name %s" % name
)
647 if not stack_operation
:
648 self
.ports
[port
.id] = port
649 port
.create_intf_name()
652 def find_port_by_name_or_id(self
, name_or_id
):
654 Tries to find the port by ID and if this does not succeed then tries to find it via name.
656 :param name_or_id: UUID or name of the network.
657 :type name_or_id: ``str``
658 :return: Returns the port reference if it was found or None
659 :rtype: :class:`heat.resources.port`
661 if name_or_id
in self
.ports
:
662 return self
.ports
[name_or_id
]
663 for port
in self
.ports
.values():
664 if port
.name
== name_or_id
or port
.template_name
== name_or_id
:
669 def delete_port(self
, name_or_id
):
671 Deletes the given port. Raises an exception when the port was not found!
673 :param name_or_id: UUID or name of the port.
674 :type name_or_id: ``str``
676 port
= self
.find_port_by_name_or_id(name_or_id
)
678 raise Exception("Port with name or id %s does not exists." % name_or_id
)
680 my_links
= self
.dc
.net
.links
681 for link
in my_links
:
682 if str(link
.intf1
) == port
.intf_name
and \
683 str(link
.intf1
.ip
) == port
.ip_address
.split('/')[0]:
684 self
._remove
_link
(link
.intf1
.node
.name
, link
)
687 self
.ports
.pop(port
.id, None)
688 for stack
in self
.stacks
.values():
689 stack
.ports
.pop(port
.name
, None)
691 def create_port_pair(self
, name
, stack_operation
=False):
693 Creates a new port pair with the given name. Raises an exception when a port pair with the given name already
696 :param name: Name of the new port pair.
698 :param stack_operation: Allows the heat parser to create modules without adapting the current emulation.
699 :type stack_operation: ``bool``
700 :return: Returns the created port pair.
701 :rtype: :class:`openstack.resources.port_pair`
703 port_pair
= self
.find_port_pair_by_name_or_id(name
)
704 if port_pair
is not None and not stack_operation
:
705 logging
.warning("Creating port pair with name %s failed, as it already exists" % name
)
706 raise Exception("Port pair with name %s already exists." % name
)
707 logging
.debug("Creating port pair with name %s" % name
)
708 port_pair
= PortPair(name
)
709 if not stack_operation
:
710 self
.port_pairs
[port_pair
.id] = port_pair
713 def find_port_pair_by_name_or_id(self
, name_or_id
):
715 Tries to find the port pair by ID and if this does not succeed then tries to find it via name.
717 :param name_or_id: UUID or name of the port pair.
718 :type name_or_id: ``str``
719 :return: Returns the port pair reference if it was found or None
720 :rtype: :class:`openstack.resources.port_pair`
722 if name_or_id
in self
.port_pairs
:
723 return self
.port_pairs
[name_or_id
]
724 for port_pair
in self
.port_pairs
.values():
725 if port_pair
.name
== name_or_id
:
730 def delete_port_pair(self
, name_or_id
):
732 Deletes the given port pair. Raises an exception when the port pair was not found!
734 :param name_or_id: UUID or name of the port pair.
735 :type name_or_id: ``str``
737 port_pair
= self
.find_port_pair_by_name_or_id(name_or_id
)
738 if port_pair
is None:
739 raise Exception("Port pair with name or id %s does not exists." % name_or_id
)
741 self
.port_pairs
.pop(port_pair
.id, None)
743 def create_port_pair_group(self
, name
, stack_operation
=False):
745 Creates a new port pair group with the given name. Raises an exception when a port pair group
746 with the given name already exists!
748 :param name: Name of the new port pair group.
750 :param stack_operation: Allows the heat parser to create modules without adapting the current emulation.
751 :type stack_operation: ``bool``
752 :return: Returns the created port pair group .
753 :rtype: :class:`openstack.resources.port_pair_group`
755 port_pair_group
= self
.find_port_pair_group_by_name_or_id(name
)
756 if port_pair_group
is not None and not stack_operation
:
757 logging
.warning("Creating port pair group with name %s failed, as it already exists" % name
)
758 raise Exception("Port pair group with name %s already exists." % name
)
759 logging
.debug("Creating port pair group with name %s" % name
)
760 port_pair_group
= PortPairGroup(name
)
761 if not stack_operation
:
762 self
.port_pair_groups
[port_pair_group
.id] = port_pair_group
763 return port_pair_group
765 def find_port_pair_group_by_name_or_id(self
, name_or_id
):
767 Tries to find the port pair group by ID and if this does not succeed then tries to find it via name.
769 :param name_or_id: UUID or name of the port pair group.
770 :type name_or_id: ``str``
771 :return: Returns the port pair group reference if it was found or None
772 :rtype: :class:`openstack.resources.port_pair_group`
774 if name_or_id
in self
.port_pair_groups
:
775 return self
.port_pair_groups
[name_or_id
]
776 for port_pair_group
in self
.port_pair_groups
.values():
777 if port_pair_group
.name
== name_or_id
:
778 return port_pair_group
782 def delete_port_pair_group(self
, name_or_id
):
784 Deletes the given port pair group. Raises an exception when the port pair group was not found!
786 :param name_or_id: UUID or name of the port pair group.
787 :type name_or_id: ``str``
789 port_pair_group
= self
.find_port_pair_group_by_name_or_id(name_or_id
)
790 if port_pair_group
is None:
791 raise Exception("Port pair with name or id %s does not exists." % name_or_id
)
793 self
.port_pair_groups
.pop(port_pair_group
.id, None)
795 def create_port_chain(self
, name
, stack_operation
=False):
797 Creates a new port chain with the given name. Raises an exception when a port chain with the given name already
800 :param name: Name of the new port chain
802 :param stack_operation: Allows the heat parser to create modules without adapting the current emulation.
803 :type stack_operation: ``bool``
804 :return: Returns the created port chain.
805 :rtype: :class:`openstack.resources.port_chain.PortChain`
807 port_chain
= self
.find_port_chain_by_name_or_id(name
)
808 if port_chain
is not None and not stack_operation
:
809 logging
.warning("Creating port chain with name %s failed, as it already exists" % name
)
810 raise Exception("Port chain with name %s already exists." % name
)
811 logging
.debug("Creating port chain with name %s" % name
)
812 port_chain
= PortChain(name
)
813 if not stack_operation
:
814 self
.port_chains
[port_chain
.id] = port_chain
817 def find_port_chain_by_name_or_id(self
, name_or_id
):
819 Tries to find the port chain by ID and if this does not succeed then tries to find it via name.
821 :param name_or_id: UUID or name of the port chain.
822 :type name_or_id: ``str``
823 :return: Returns the port chain reference if it was found or None
824 :rtype: :class:`openstack.resources.port_chain.PortChain`
826 if name_or_id
in self
.port_chains
:
827 return self
.port_chains
[name_or_id
]
828 for port_chain
in self
.port_chains
.values():
829 if port_chain
.name
== name_or_id
:
833 def delete_port_chain(self
, name_or_id
):
835 Deletes the given port chain. Raises an exception when the port chain was not found!
837 :param name_or_id: UUID or name of the port chain.
838 :type name_or_id: ``str``
840 port_chain
= self
.find_port_chain_by_name_or_id(name_or_id
)
841 port_chain
.uninstall(self
)
842 if port_chain
is None:
843 raise Exception("Port chain with name or id %s does not exists." % name_or_id
)
845 self
.port_chains
.pop(port_chain
.id, None)
847 def create_flow_classifier(self
, name
, stack_operation
=False):
849 Creates a new flow classifier with the given name. Raises an exception when a flow classifier with the given name already
852 :param name: Name of the new flow classifier.
854 :param stack_operation: Allows the heat parser to create modules without adapting the current emulation.
855 :type stack_operation: ``bool``
856 :return: Returns the created flow classifier.
857 :rtype: :class:`openstack.resources.flow_classifier`
859 flow_classifier
= self
.find_flow_classifier_by_name_or_id(name
)
860 if flow_classifier
is not None and not stack_operation
:
861 logging
.warning("Creating flow classifier with name %s failed, as it already exists" % name
)
862 raise Exception("Flow classifier with name %s already exists." % name
)
863 logging
.debug("Creating flow classifier with name %s" % name
)
864 flow_classifier
= FlowClassifier(name
)
865 if not stack_operation
:
866 self
.flow_classifiers
[flow_classifier
.id] = flow_classifier
867 return flow_classifier
869 def find_flow_classifier_by_name_or_id(self
, name_or_id
):
871 Tries to find the flow classifier by ID and if this does not succeed then tries to find it via name.
873 :param name_or_id: UUID or name of the flow classifier.
874 :type name_or_id: ``str``
875 :return: Returns the flow classifier reference if it was found or None
876 :rtype: :class:`openstack.resources.flow_classifier`
878 if name_or_id
in self
.flow_classifiers
:
879 return self
.flow_classifiers
[name_or_id
]
880 for flow_classifier
in self
.flow_classifiers
.values():
881 if flow_classifier
.name
== name_or_id
:
882 return flow_classifier
886 def delete_flow_classifier(self
, name_or_id
):
888 Deletes the given flow classifier. Raises an exception when the flow classifier was not found!
890 :param name_or_id: UUID or name of the flow classifier.
891 :type name_or_id: ``str``
893 flow_classifier
= self
.find_flow_classifier_by_name_or_id(name_or_id
)
894 if flow_classifier
is None:
895 raise Exception("Flow classifier with name or id %s does not exists." % name_or_id
)
897 self
.flow_classifiers
.pop(flow_classifier
.id, None)
899 def _add_link(self
, node_name
, ip_address
, link_name
, net_name
):
901 Adds a new link between datacenter switch and the node with the given name.
903 :param node_name: Name of the required node.
904 :type node_name: ``str``
905 :param ip_address: IP-Address of the node.
906 :type ip_address: ``str``
907 :param link_name: Link name.
908 :type link_name: ``str``
909 :param net_name: Network name.
910 :type net_name: ``str``
912 node
= self
.dc
.net
.get(node_name
)
913 params
= {'params1': {'ip': ip_address
,
915 link_name
: net_name
},
916 'intfName1': link_name
,
918 link
= self
.dc
.net
.addLink(node
, self
.dc
.switch
, **params
)
919 OpenstackCompute
.timeout_sleep(link
.intf1
.isUp
, 1)
921 def _remove_link(self
, server_name
, link
):
923 Removes a link between server and datacenter switch.
925 :param server_name: Specifies the server where the link starts.
926 :type server_name: ``str``
927 :param link: A reference of the link which should be removed.
928 :type link: :class:`mininet.link`
930 self
.dc
.switch
.detach(link
.intf2
)
931 del self
.dc
.switch
.intfs
[self
.dc
.switch
.ports
[link
.intf2
]]
932 del self
.dc
.switch
.ports
[link
.intf2
]
933 del self
.dc
.switch
.nameToIntf
[link
.intf2
.name
]
934 self
.dc
.net
.removeLink(link
=link
)
935 for intf_key
in self
.dc
.net
[server_name
].intfs
.keys():
936 if self
.dc
.net
[server_name
].intfs
[intf_key
].link
== link
:
937 self
.dc
.net
[server_name
].intfs
[intf_key
].delete()
938 del self
.dc
.net
[server_name
].intfs
[intf_key
]
941 def timeout_sleep(function
, max_sleep
):
943 This function will execute a function all 0.1 seconds until it successfully returns.
944 Will return after `max_sleep` seconds if not successful.
946 :param function: The function to execute. Should return true if done.
947 :type function: ``function``
948 :param max_sleep: Max seconds to sleep. 1 equals 1 second.
949 :type max_sleep: ``float``
951 current_time
= time
.time()
952 stop_time
= current_time
+ max_sleep
953 while not function() and current_time
< stop_time
:
954 current_time
= time
.time()