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 from sfa.rspecs.rspec import RSpec
   8 from sfa.rspecs.version_manager import VersionManager
   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                 self.nodes[node['node_id']] = node
  36
  37     def prepare_interfaces(self, force=False):
  38         if not self.interfaces or force:
  39             for interface in self.api.plshell.GetInterfaces(self.api.plauth):
  40                 self.interfaces[interface['interface_id']] = interface
  41
  42     def prepare_links(self, force=False):
  43         if not self.links or force:
  44             pass
  45
  46     def prepare_node_tags(self, force=False):
  47         if not self.node_tags or force:
  48             for node_tag in self.api.plshell.GetNodeTags(self.api.plauth):
  49                 self.node_tags[node_tag['node_tag_id']] = node_tag
  50
  51     def prepare_pl_initscripts(self, force=False):
  52         if not self.pl_initscripts or force:
  53             for initscript in self.api.plshell.GetInitScripts(self.api.plauth, {'enabled': True}):
  54                 self.pl_initscripts[initscript['initscript_id']] = initscript
  55
  56     def prepare(self, force=False):
  57         if not self.prepared or force:
  58             self.prepare_sites(force)
  59             self.prepare_nodes(force)
  60             self.prepare_interfaces(force)
  61             self.prepare_links(force)
  62             self.prepare_node_tags(force)
  63             self.prepare_pl_initscripts()
  64             # add site/interface info to nodes
  65             for node_id in self.nodes:
  66                 node = self.nodes[node_id]
  67                 site = self.sites[node['site_id']]
  68                 interfaces = [self.interfaces[interface_id] for interface_id in node['interface_ids']]
  69                 tags = [self.node_tags[tag_id] for tag_id in node['node_tag_ids']]
  70                 node['network'] = self.api.hrn
  71                 node['network_urn'] = hrn_to_urn(self.api.hrn, 'authority+am')
  72                 node['urn'] = hostname_to_urn(self.api.hrn, site['login_base'], node['hostname'])
  73                 node['site_urn'] = hrn_to_urn(PlXrn.site_hrn(self.api.hrn, site['login_base']), 'authority+sa')
  74                 node['site'] = site
  75                 node['interfaces'] = interfaces
  76                 node['tags'] = tags
  77
  78         self.prepared = True
  79
  80     def get_rspec(self, slice_xrn=None, version = None):
  81         self.prepare()
  82         version_manager = VersionManager()
  83         version = version_manager.get_version(version)
  84         if not slice_xrn:
  85             rspec_version = version_manager._get_version(version.type, version.version, 'ad')
  86         else:
  87             rspec_version = version_manager._get_version(version.type, version.version, 'manifest')
  88
  89         rspec = RSpec(version=rspec_version, user_options=self.user_options)
  90         # get slice details if specified
  91         slice = None
  92         if slice_xrn:
  93             slice_hrn, _ = urn_to_hrn(slice_xrn)
  94             slice_name = hrn_to_pl_slicename(slice_hrn)
  95             slices = self.api.plshell.GetSlices(self.api.plauth, slice_name)
  96             if slices:
  97                 slice = slices[0]
  98
  99         # filter out nodes with a whitelist:
 100         valid_nodes = []
 101         for node in self.nodes.values():
 102             # only doing this because protogeni rspec needs
 103             # to advertise available initscripts
 104             node['pl_initscripts'] = self.pl_initscripts
 105
 106             if slice and node['node_id'] in slice['node_ids']:
 107                 valid_nodes.append(node)
 108             elif slice and slice['slice_id'] in node['slice_ids_whitelist']:
 109                 valid_nodes.append(node)
 110             elif not slice and not node['slice_ids_whitelist']:
 111                 valid_nodes.append(node)
 112
 113         rspec.version.add_nodes(valid_nodes)
 114         rspec.version.add_interfaces(self.interfaces.values())
 115         rspec.version.add_links(self.links.values())
 116
 117         # add slivers
 118         if slice_xrn and slice:
 119             slivers = []
 120             tags = self.api.plshell.GetSliceTags(self.api.plauth, slice['slice_tag_ids'])
 121
 122             # add default tags
 123             for tag in tags:
 124                 # if tag isn't bound to a node then it applies to all slivers
 125                 # and belongs in the <sliver_defaults> tag
 126                 if not tag['node_id']:
 127                     rspec.version.add_default_sliver_attribute(tag['tagname'], tag['value'], self.api.hrn)
 128
 129             for node_id in slice['node_ids']:
 130                 try:
 131                     sliver = {}
 132                     sliver['hostname'] = self.nodes[node_id]['hostname']
 133                     sliver['node_id'] = node_id
 134                     sliver['slice_id'] = slice['slice_id']
 135                     sliver['tags'] = []
 136                     slivers.append(sliver)
 137
 138                     # add tags for this node only
 139                     for tag in tags:
 140                         if tag['node_id'] and (tag['node_id'] == node_id):
 141                             sliver['tags'].append(tag)
 142                 except:
 143                     self.api.logger.log_exc('unable to add sliver %s to node %s' % (slice['name'], node_id))
 144             rspec.version.add_slivers(slivers, sliver_urn=slice_xrn)
 145
 146         return rspec.toxml()