sfa/plc/aggregate.py

   1 #!/usr/bin/python
   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
   4 from sfa.rspecs.rspec import RSpec
   5 from sfa.rspecs.elements.link import Link
   6 from sfa.managers.vini.topology import PhysicalLinks
   7 from sfa.rspecs.version_manager import VersionManager
   8 from sfa.plc.vlink import get_tc_rate
   9
  10 class Aggregate:
  11
  12     api = None
  13     sites = {}
  14     nodes = {}
  15     interfaces = {}
  16     links = {}
  17     node_tags = {}
  18     pl_initscripts = {}
  19     prepared=False
  20     #panos new user options variable
  21     user_options = {}
  22
  23     def __init__(self, api, user_options={}):
  24         self.api = api
  25         self.user_options = user_options
  26
  27     def prepare_sites(self, force=False):
  28         if not self.sites or force:
  29             for site in self.api.plshell.GetSites(self.api.plauth):
  30                 self.sites[site['site_id']] = site
  31
  32     def prepare_nodes(self, force=False):
  33         if not self.nodes or force:
  34             for node in self.api.plshell.GetNodes(self.api.plauth, {'peer_id': None}):
  35                 # add site/interface info to nodes.
  36                 # assumes that sites, interfaces and tags have already been prepared.
  37                 site = self.sites[node['site_id']]
  38                 interfaces = [self.interfaces[interface_id] for interface_id in node['interface_ids']]
  39                 tags = [self.node_tags[tag_id] for tag_id in node['node_tag_ids']]
  40                 node['network'] = self.api.hrn
  41                 node['network_urn'] = hrn_to_urn(self.api.hrn, 'authority+am')
  42                 node['urn'] = hostname_to_urn(self.api.hrn, site['login_base'], node['hostname'])
  43                 node['site_urn'] = hrn_to_urn(PlXrn.site_hrn(self.api.hrn, site['login_base']), 'authority+sa')
  44                 node['site'] = site
  45                 node['interfaces'] = interfaces
  46                 node['tags'] = tags
  47                 self.nodes[node['node_id']] = node
  48
  49     def prepare_interfaces(self, force=False):
  50         if not self.interfaces or force:
  51             for interface in self.api.plshell.GetInterfaces(self.api.plauth):
  52                 self.interfaces[interface['interface_id']] = interface
  53
  54     def prepare_links(self, force=False):
  55         if not self.links or force:
  56             if not self.api.config.SFA_AGGREGATE_TYPE.lower() == 'vini':
  57                 return
  58
  59             for (site_id1, site_id2) in PhysicalLinks:
  60                 link = Link()
  61                 if not site_id1 in self.sites or site_id2 not in self.sites:
  62                     continue
  63                 site1 = self.sites[site_id1]
  64                 site2 = self.sites[site_id2]
  65                 # get hrns
  66                 site1_hrn = self.api.hrn + '.' + site1['login_base']
  67                 site2_hrn = self.api.hrn + '.' + site2['login_base']
  68                 # get the first node
  69                 node1 = self.nodes[site1['node_id'][0]]
  70                 node2 = self.nodes[site2['node_id'][0]]
  71
  72                 # set interfaces
  73                 # just get first interface of the first node
  74                 if1_xrn = PlXrn(auth=self.api.hrn, interface='node%s:eth0' % (node1['node_id']))
  75                 if2_xrn = PlXrn(auth=self.api.hrn, interface='node%s:eth0' % (node2['node_id']))
  76
  77                 if1 = Interface({'component_id': if1_xrn.urn} )
  78                 if2 = Interface({'component_id': if2_xrn.urn} )
  79
  80                 # set link
  81                 link = Link({'capacity': '1000000', 'latency': '0', 'packet_loss': '0', 'type': 'ipv4'})
  82                 link['interface1'] = if1
  83                 link['interface2'] = if2
  84                 link['component_name'] = "%s:%s" % (site1['login_base'], site2['login_base'])
  85                 link['component_id'] = PlXrn(auth=self.api.hrn, link=link['component_name'])
  86                 link['component_manager_id'] =  hrn_to_urn(self.api.hrn, 'authority+am')
  87                 self.links[link['component_name']] = link
  88
  89
  90     def prepare_node_tags(self, force=False):
  91         if not self.node_tags or force:
  92             for node_tag in self.api.plshell.GetNodeTags(self.api.plauth):
  93                 self.node_tags[node_tag['node_tag_id']] = node_tag
  94
  95     def prepare_pl_initscripts(self, force=False):
  96         if not self.pl_initscripts or force:
  97             for initscript in self.api.plshell.GetInitScripts(self.api.plauth, {'enabled': True}):
  98                 self.pl_initscripts[initscript['initscript_id']] = initscript
  99
 100     def prepare(self, force=False):
 101         if not self.prepared or force:
 102             self.prepare_sites(force)
 103             self.prepare_interfaces(force)
 104             self.prepare_node_tags(force)
 105             self.prepare_nodes(force)
 106             self.prepare_links(force)
 107             self.prepare_pl_initscripts()
 108         self.prepared = True
 109
 110     def get_rspec(self, slice_xrn=None, version = None):
 111         self.prepare()
 112         version_manager = VersionManager()
 113         version = version_manager.get_version(version)
 114         if not slice_xrn:
 115             rspec_version = version_manager._get_version(version.type, version.version, 'ad')
 116         else:
 117             rspec_version = version_manager._get_version(version.type, version.version, 'manifest')
 118
 119         rspec = RSpec(version=rspec_version, user_options=self.user_options)
 120         # get slice details if specified
 121         slice = None
 122         if slice_xrn:
 123             slice_hrn, _ = urn_to_hrn(slice_xrn)
 124             slice_name = hrn_to_pl_slicename(slice_hrn)
 125             slices = self.api.plshell.GetSlices(self.api.plauth, slice_name)
 126             if slices:
 127                 slice = slices[0]
 128
 129         # filter out nodes with a whitelist:
 130         valid_nodes = []
 131         for node in self.nodes.values():
 132             # only doing this because protogeni rspec needs
 133             # to advertise available initscripts
 134             node['pl_initscripts'] = self.pl_initscripts
 135
 136             if slice and node['node_id'] in slice['node_ids']:
 137                 valid_nodes.append(node)
 138             elif slice and slice['slice_id'] in node['slice_ids_whitelist']:
 139                 valid_nodes.append(node)
 140             elif not slice and not node['slice_ids_whitelist']:
 141                 valid_nodes.append(node)
 142
 143         rspec.version.add_nodes(valid_nodes)
 144         rspec.version.add_interfaces(self.interfaces.values())
 145         rspec.version.add_links(self.links.values())
 146
 147         # add slivers
 148         if slice_xrn and slice:
 149             slivers = []
 150             tags = self.api.plshell.GetSliceTags(self.api.plauth, slice['slice_tag_ids'])
 151
 152             # add default tags
 153             for tag in tags:
 154                 # if tag isn't bound to a node then it applies to all slivers
 155                 # and belongs in the <sliver_defaults> tag
 156                 if not tag['node_id']:
 157                     rspec.version.add_default_sliver_attribute(tag['tagname'], tag['value'], self.api.hrn)
 158                 if tag['tagname'] == 'topo_rspec' and tag['node_id']:
 159                     node = self.nodes[tag['node_id']]
 160                     value = eval(tag['value'])
 161                     for (id, realip, bw, lvip, rvip, vnet) in value:
 162                         bps = get_tc_rate(bw)
 163                         remote = self.nodes[id]
 164                         site1 = self.sites[node['site_id']]
 165                         site2 = self.sites[remote['site_id']]
 166                         link1_name = '%s:%s' % (site1['login_base'], site2['login_base'])
 167                         link2_name = '%s:%s' % (site2['login_base'], site1['login_base'])
 168                         p_link = None
 169                         if link1_name in self.links:
 170                             link = self.links[link1_name]
 171                         elif link2_name in self.links:
 172                             link = self.links[link2_name]
 173                         v_link = Link()
 174
 175                         link.capacity = bps
 176             for node_id in slice['node_ids']:
 177                 try:
 178                     sliver = {}
 179                     sliver['hostname'] = self.nodes[node_id]['hostname']
 180                     sliver['node_id'] = node_id
 181                     sliver['slice_id'] = slice['slice_id']
 182                     sliver['tags'] = []
 183                     slivers.append(sliver)
 184
 185                     # add tags for this node only
 186                     for tag in tags:
 187                         if tag['node_id'] and (tag['node_id'] == node_id):
 188                             sliver['tags'].append(tag)
 189                 except:
 190                     self.api.logger.log_exc('unable to add sliver %s to node %s' % (slice['name'], node_id))
 191             rspec.version.add_slivers(slivers, sliver_urn=slice_xrn)
 192
 193         return rspec.toxml()