+"""
+Copyright (c) 2017 SONATA-NFV and Paderborn University
+ALL RIGHTS RESERVED.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+Neither the name of the SONATA-NFV, Paderborn University
+nor the names of its contributors may be used to endorse or promote
+products derived from this software without specific prior written
+permission.
+
+This work has been performed in the framework of the SONATA project,
+funded by the European Commission under Grant number 671517 through
+the Horizon 2020 and 5G-PPP programmes. The authors would like to
+acknowledge the contributions of their colleagues of the SONATA
+partner consortium (www.sonata-nfv.eu).
+"""
from mininet.link import Link
from resources import *
import uuid
import time
import ip_handler as IP
+import hashlib
LOG = logging.getLogger("api.openstack.compute")
"""
LOG.debug("Starting new compute resources %s" % server.name)
network = list()
+ network_dict = dict()
for port_name in server.port_names:
network_dict = dict()
network_dict['ip'] = port.ip_address
network_dict[network_dict['id']] = self.find_network_by_name_or_id(port.net_name).name
network.append(network_dict)
+ # default network dict
+ if len(network) < 1:
+ network_dict['id'] = server.name + "-eth0"
+ network_dict[network_dict['id']] = network_dict['id']
+ network.append(network_dict)
+
self.compute_nets[server.name] = network
+ LOG.debug("Network dict: {}".format(network))
c = self.dc.startCompute(server.name, image=server.image, command=server.command,
network=network, flavor_name=server.flavor,
properties=server.properties)
LOG.debug("Stopping container %s with full name %s" % (server.name, server.full_name))
link_names = list()
for port_name in server.port_names:
- link_names.append(self.find_port_by_name_or_id(port_name).intf_name)
+ prt = self.find_port_by_name_or_id(port_name)
+ if prt is not None:
+ link_names.append(prt.intf_name)
my_links = self.dc.net.links
for link in my_links:
if str(link.intf1) in link_names:
if name_or_id in self.computeUnits:
return self.computeUnits[name_or_id]
+ if self._shorten_server_name(name_or_id) in self.computeUnits:
+ return self.computeUnits[name_or_id]
+
for server in self.computeUnits.values():
if server.name == name_or_id or server.template_name == name_or_id or server.full_name == name_or_id:
return server
+ if (server.name == self._shorten_server_name(name_or_id)
+ or server.template_name == self._shorten_server_name(name_or_id)
+ or server.full_name == self._shorten_server_name(name_or_id)):
+ return server
return None
def create_server(self, name, stack_operation=False):
"""
if self.find_server_by_name_or_id(name) is not None and not stack_operation:
raise Exception("Server with name %s already exists." % name)
- server = Server(name)
+ safe_name = self._shorten_server_name(name)
+ server = Server(safe_name)
server.id = str(uuid.uuid4())
if not stack_operation:
self.computeUnits[server.id] = server
return server
+ def _shorten_server_name(self, name, char_limit=9):
+ """
+ Docker does not like too long instance names.
+ This function provides a shorter name if needed
+ """
+ if len(name) > char_limit:
+ LOG.info("Long server name: {}".format(name))
+ # construct a short name
+ h = hashlib.sha224(name).hexdigest()
+ h = h[0:char_limit]
+ LOG.info("Short server name: {}".format(h))
+ return name
+
+
def delete_server(self, server):
"""
Deletes the given server from the stack dictionary and the computeUnits dictionary.
if server is None:
return False
name_parts = server.name.split('_')
- if len(name_parts) < 3:
- return False
-
- for stack in self.stacks.values():
- if stack.stack_name == name_parts[1]:
- stack.servers.pop(server.id, None)
+ if len(name_parts) > 1:
+ for stack in self.stacks.values():
+ if stack.stack_name == name_parts[1]:
+ stack.servers.pop(server.id, None)
if self.computeUnits.pop(server.id, None) is None:
return False
return True
for net in self.nets.values():
if net.name == name_or_id:
return net
-
+ LOG.warning("Could not find net '{}' in {} or {}"
+ .format(name_or_id,
+ self.nets.keys(),
+ [n.name for n in self.nets.values()]))
return None
def create_network(self, name, stack_operation=False):
"""
port = self.find_port_by_name_or_id(name_or_id)
if port is None:
- raise Exception("Port with name or id %s does not exists." % name_or_id)
+ LOG.warning("Port with name or id %s does not exist. Can't delete it." % name_or_id)
+ return
my_links = self.dc.net.links
for link in my_links: