2 from sfa.util.xrn import hrn_to_urn, urn_to_hrn
3 from sfa.util.plxrn import PlXrn, hostname_to_urn, hrn_to_pl_slicename
5 from sfa.rspecs.rspec import RSpec
6 from sfa.rspecs.elements.link import Link
7 from sfa.rspecs.elements.interface import Interface
9 from sfa.util.topology import Topology
10 from sfa.rspecs.version_manager import VersionManager
11 from sfa.plc.vlink import get_tc_rate
23 #panos new user options variable
26 def __init__(self, api, user_options={}):
28 self.user_options = user_options
30 def prepare_sites(self, filter={}, force=False):
31 if not self.sites or force:
32 for site in self.api.driver.GetSites(filter):
33 self.sites[site['site_id']] = site
35 def prepare_nodes(self, filter={}, force=False):
36 if not self.nodes or force:
37 filter.update({'peer_id': None})
38 nodes = self.api.driver.GetNodes(filter)
43 site_ids.append(node['site_id'])
44 interface_ids.extend(node['interface_ids'])
45 tag_ids.extend(node['node_tag_ids'])
46 self.prepare_sites({'site_id': site_ids})
47 self.prepare_interfaces({'interface_id': interface_ids})
48 self.prepare_node_tags({'node_tag_id': tag_ids})
50 # add site/interface info to nodes.
51 # assumes that sites, interfaces and tags have already been prepared.
52 site = self.sites[node['site_id']]
53 interfaces = [self.interfaces[interface_id] for interface_id in node['interface_ids']]
54 tags = [self.node_tags[tag_id] for tag_id in node['node_tag_ids']]
55 node['network'] = self.api.hrn
56 node['network_urn'] = hrn_to_urn(self.api.hrn, 'authority+am')
57 node['urn'] = hostname_to_urn(self.api.hrn, site['login_base'], node['hostname'])
58 node['site_urn'] = hrn_to_urn(PlXrn.site_hrn(self.api.hrn, site['login_base']), 'authority+sa')
60 node['interfaces'] = interfaces
62 self.nodes[node['node_id']] = node
64 def prepare_interfaces(self, filter={}, force=False):
65 if not self.interfaces or force:
66 for interface in self.api.driver.GetInterfaces(filter):
67 self.interfaces[interface['interface_id']] = interface
69 def prepare_links(self, filter={}, force=False):
70 # we're aobut to deprecate sfa_aggregate_type, need to get this right
71 # with the generic framework
72 if not self.links or force:
73 if not self.api.config.SFA_AGGREGATE_TYPE.lower() == 'vini':
77 for (site_id1, site_id2) in topology:
79 if not site_id1 in self.sites or site_id2 not in self.sites:
81 site1 = self.sites[site_id1]
82 site2 = self.sites[site_id2]
84 site1_hrn = self.api.hrn + '.' + site1['login_base']
85 site2_hrn = self.api.hrn + '.' + site2['login_base']
87 node1 = self.nodes[site1['node_ids'][0]]
88 node2 = self.nodes[site2['node_ids'][0]]
91 # just get first interface of the first node
92 if1_xrn = PlXrn(auth=self.api.hrn, interface='node%s:eth0' % (node1['node_id']))
93 if1_ipv4 = self.interfaces[node1['interface_ids'][0]]['ip']
94 if2_xrn = PlXrn(auth=self.api.hrn, interface='node%s:eth0' % (node2['node_id']))
95 if2_ipv4 = self.interfaces[node2['interface_ids'][0]]['ip']
97 if1 = Interface({'component_id': if1_xrn.urn, 'ipv4': if1_ipv4} )
98 if2 = Interface({'component_id': if2_xrn.urn, 'ipv4': if2_ipv4} )
101 link = Link({'capacity': '1000000', 'latency': '0', 'packet_loss': '0', 'type': 'ipv4'})
102 link['interface1'] = if1
103 link['interface2'] = if2
104 link['component_name'] = "%s:%s" % (site1['login_base'], site2['login_base'])
105 link['component_id'] = PlXrn(auth=self.api.hrn, interface=link['component_name']).get_urn()
106 link['component_manager_id'] = hrn_to_urn(self.api.hrn, 'authority+am')
107 self.links[link['component_name']] = link
110 def prepare_node_tags(self, filter={}, force=False):
111 if not self.node_tags or force:
112 for node_tag in self.api.driver.GetNodeTags(filter):
113 self.node_tags[node_tag['node_tag_id']] = node_tag
115 def prepare_pl_initscripts(self, filter={}, force=False):
116 if not self.pl_initscripts or force:
117 filter.update({'enabled': True})
118 for initscript in self.api.driver.GetInitScripts(filter):
119 self.pl_initscripts[initscript['initscript_id']] = initscript
121 def prepare(self, slice = None, force=False):
122 if not self.prepared or force or slice:
124 self.prepare_sites(force=force)
125 self.prepare_interfaces(force=force)
126 self.prepare_node_tags(force=force)
127 self.prepare_nodes(force=force)
128 self.prepare_links(force=force)
129 self.prepare_pl_initscripts(force=force)
131 self.prepare_sites({'site_id': slice['site_id']})
132 self.prepare_interfaces({'node_id': slice['node_ids']})
133 self.prepare_node_tags({'node_id': slice['node_ids']})
134 self.prepare_nodes({'node_id': slice['node_ids']})
135 self.prepare_links({'slice_id': slice['slice_id']})
136 self.prepare_pl_initscripts()
139 def get_rspec(self, slice_xrn=None, version = None):
140 version_manager = VersionManager()
141 version = version_manager.get_version(version)
143 rspec_version = version_manager._get_version(version.type, version.version, 'ad')
145 rspec_version = version_manager._get_version(version.type, version.version, 'manifest')
147 rspec = RSpec(version=rspec_version, user_options=self.user_options)
148 # get slice details if specified
151 slice_hrn, _ = urn_to_hrn(slice_xrn)
152 slice_name = hrn_to_pl_slicename(slice_hrn)
153 slices = self.api.driver.GetSlices(slice_name)
156 self.prepare(slice=slice)
160 # filter out nodes with a whitelist:
162 for node in self.nodes.values():
163 # only doing this because protogeni rspec needs
164 # to advertise available initscripts
165 node['pl_initscripts'] = self.pl_initscripts
167 if slice and node['node_id'] in slice['node_ids']:
168 valid_nodes.append(node)
169 elif slice and slice['slice_id'] in node['slice_ids_whitelist']:
170 valid_nodes.append(node)
171 elif not slice and not node['slice_ids_whitelist']:
172 valid_nodes.append(node)
174 rspec.version.add_nodes(valid_nodes)
175 rspec.version.add_interfaces(self.interfaces.values())
176 rspec.version.add_links(self.links.values())
179 if slice_xrn and slice:
181 tags = self.api.driver.GetSliceTags(slice['slice_tag_ids'])
185 # if tag isn't bound to a node then it applies to all slivers
186 # and belongs in the <sliver_defaults> tag
187 if not tag['node_id']:
188 rspec.version.add_default_sliver_attribute(tag['tagname'], tag['value'], self.api.hrn)
189 if tag['tagname'] == 'topo_rspec' and tag['node_id']:
190 node = self.nodes[tag['node_id']]
191 value = eval(tag['value'])
192 for (id, realip, bw, lvip, rvip, vnet) in value:
193 bps = get_tc_rate(bw)
194 remote = self.nodes[id]
195 site1 = self.sites[node['site_id']]
196 site2 = self.sites[remote['site_id']]
197 link1_name = '%s:%s' % (site1['login_base'], site2['login_base'])
198 link2_name = '%s:%s' % (site2['login_base'], site1['login_base'])
200 if link1_name in self.links:
201 link = self.links[link1_name]
202 elif link2_name in self.links:
203 link = self.links[link2_name]
207 for node_id in slice['node_ids']:
210 sliver['hostname'] = self.nodes[node_id]['hostname']
211 sliver['node_id'] = node_id
212 sliver['slice_id'] = slice['slice_id']
214 slivers.append(sliver)
216 # add tags for this node only
218 if tag['node_id'] and (tag['node_id'] == node_id):
219 sliver['tags'].append(tag)
221 self.api.logger.log_exc('unable to add sliver %s to node %s' % (slice['name'], node_id))
222 rspec.version.add_slivers(slivers, sliver_urn=slice_xrn)