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