sfa/plc/aggregate.py

   1 #!/usr/bin/python
   2 from sfa.util.xrn import *
   3 from sfa.util.plxrn import *
   4 from sfa.rspecs.sfa_rspec import SfaRSpec
   5 from sfa.rspecs.pg_rspec  import PGRSpec
   6 from sfa.rspecs.rspec_version import RSpecVersion
   7
   8 class Aggregate:
   9
  10     api = None
  11     sites = {}
  12     nodes = {}
  13     interfaces = {}
  14     links = {}
  15     node_tags = {}
  16     pl_initscripts = {}
  17     prepared=False
  18     #panos new user options variable
  19     user_options = {}
  20
  21     def __init__(self, api, user_options={}):
  22         self.api = api
  23         self.user_options = user_options
  24
  25     def prepare_sites(self, force=False):
  26         if not self.sites or force:
  27             for site in self.api.plshell.GetSites(self.api.plauth):
  28                 self.sites[site['site_id']] = site
  29
  30     def prepare_nodes(self, force=False):
  31         if not self.nodes or force:
  32             for node in self.api.plshell.GetNodes(self.api.plauth, {'peer_id': None}):
  33                 self.nodes[node['node_id']] = node
  34
  35     def prepare_interfaces(self, force=False):
  36         if not self.interfaces or force:
  37             for interface in self.api.plshell.GetInterfaces(self.api.plauth):
  38                 self.interfaces[interface['interface_id']] = interface
  39
  40     def prepare_links(self, force=False):
  41         if not self.links or force:
  42             pass
  43
  44     def prepare_node_tags(self, force=False):
  45         if not self.node_tags or force:
  46             for node_tag in self.api.plshell.GetNodeTags(self.api.plauth):
  47                 self.node_tags[node_tag['node_tag_id']] = node_tag
  48
  49     def prepare_pl_initscripts(self, force=False):
  50         if not self.pl_initscripts or force:
  51             for initscript in self.api.plshell.GetInitScripts(self.api.plauth, {'enabled': True}):
  52                 self.pl_initscripts[initscript['initscript_id']] = initscript
  53
  54     def prepare(self, force=False):
  55         if not self.prepared or force:
  56             self.prepare_sites(force)
  57             self.prepare_nodes(force)
  58             self.prepare_interfaces(force)
  59             self.prepare_links(force)
  60             self.prepare_node_tags(force)
  61             self.prepare_pl_initscripts()
  62             # add site/interface info to nodes
  63             for node_id in self.nodes:
  64                 node = self.nodes[node_id]
  65                 site = self.sites[node['site_id']]
  66                 interfaces = [self.interfaces[interface_id] for interface_id in node['interface_ids']]
  67                 tags = [self.node_tags[tag_id] for tag_id in node['node_tag_ids']]
  68                 node['network'] = self.api.hrn
  69                 node['network_urn'] = hrn_to_urn(self.api.hrn, 'authority+am')
  70                 node['urn'] = hostname_to_urn(self.api.hrn, site['login_base'], node['hostname'])
  71                 node['site_urn'] = hrn_to_urn(PlXrn.site_hrn(self.api.hrn, site['login_base']), 'authority+sa')
  72                 node['site'] = site
  73                 node['interfaces'] = interfaces
  74                 node['tags'] = tags
  75
  76         self.prepared = True
  77
  78     def get_rspec(self, slice_xrn=None, version = None):
  79         self.prepare()
  80         rspec = None
  81         rspec_version = RSpecVersion(version)
  82         if slice_xrn:
  83             type = 'manifest'
  84         else:
  85             type = 'advertisement'
  86         if rspec_version['type'].lower() == 'protogeni':
  87             rspec = PGRSpec(type=type)
  88         elif rspec_version['type'].lower() == 'sfa':
  89             rspec = SfaRSpec(type=type, user_options=self.user_options)
  90         else:
  91             rspec = SfaRSpec(type=type, user_options=self.user_options)
  92
  93         # get slice details if specified
  94         slice = None
  95         if slice_xrn:
  96             slice_hrn, _ = urn_to_hrn(slice_xrn)
  97             slice_name = hrn_to_pl_slicename(slice_hrn)
  98             slices = self.api.plshell.GetSlices(self.api.plauth, slice_name)
  99             if slices:
 100                 slice = slices[0]
 101
 102         # filter out nodes with a whitelist:
 103         valid_nodes = []
 104         for node in self.nodes.values():
 105             # only doing this becuase protogeni rspec needs
 106             # to advertise available initscripts
 107             node['pl_initscripts'] = self.pl_initscripts
 108
 109             if slice and node['node_id'] in slice['node_ids']:
 110                 valid_nodes.append(node)
 111             elif slice and slice['slice_id'] in node['slice_ids_whitelist']:
 112                 valid_nodes.append(node)
 113             elif not slice and not node['slice_ids_whitelist']:
 114                 valid_nodes.append(node)
 115
 116         rspec.add_nodes(valid_nodes)
 117         rspec.add_interfaces(self.interfaces.values())
 118         rspec.add_links(self.links.values())
 119
 120         # add slivers
 121         if slice_xrn and slice:
 122             slivers = []
 123             tags = self.api.plshell.GetSliceTags(self.api.plauth, slice['slice_tag_ids'])
 124
 125             # add default tags
 126             for tag in tags:
 127                 # if tag isn't bound to a node then it applies to all slivers
 128                 # and belongs in the <sliver_defaults> tag
 129                 if not tag['node_id']:
 130                     rspec.add_default_sliver_attribute(tag['tagname'], tag['value'], self.api.hrn)
 131
 132             for node_id in slice['node_ids']:
 133                 try:
 134                     sliver = {}
 135                     sliver['hostname'] = self.nodes[node_id]['hostname']
 136                     sliver['node_id'] = node_id
 137                     sliver['slice_id'] = slice['slice_id']
 138                     sliver['tags'] = []
 139                     slivers.append(sliver)
 140
 141                     # add tags for this node only
 142                     for tag in tags:
 143                         if tag['node_id'] and (tag['node_id'] == node_id):
 144                             sliver['tags'].append(tag)
 145                 except:
 146                     self.api.logger.log_exc('unable to add sliver %s to node %s' % (slice['name'], node_id))
 147             rspec.add_slivers(slivers, sliver_urn=slice_xrn)
 148
 149         return rspec.toxml(cleanup=True)