sfa/openstack/osaggregate.py

   1 from sfa.rspecs.rspec import RSpec
   2 from sfa.rspecs.elements.hardware_type import HardwareType
   3 from sfa.rspecs.elements.node import Node
   4 from sfa.rspecs.elements.sliver import Sliver
   5 from sfa.rspecs.elements.login import Login
   6 from sfa.rspecs.elements.services import Services
   7 from sfa.util.xrn import Xrn
   8 from sfa.util.osxrn import OSXrn
   9 from sfa.rspecs.version_manager import VersionManager
  10
  11 class OSAggregate:
  12
  13     def __init__(self, driver):
  14         self.driver = driver
  15
  16     def instance_to_sliver(self, instance, slice_xrn=None):
  17         sliver_id = None
  18         name = None
  19         if slice_xrn:
  20             name = OSXrn(slice_xrn, 'slice').name
  21             sliver_id = xrn.sliver_id(instance.instance_id, "")
  22
  23         # should include:
  24         # * instance.image_ref
  25         # * instance.kernel_id
  26         # * instance.ramdisk_id
  27         name=None
  28         if hasattr(instance, 'name'):
  29             name = instance.name
  30         elif hasattr(instance, 'display_name'):
  31             name = instance.display_name
  32         sliver = Sliver({'slice_id': sliver_id,
  33                          'name': name,
  34                          'type': 'plos-' + instance['name'],
  35                          'tags': []})
  36         return sliver
  37
  38     def get_rspec(self, slice_xrn=None, vsersion=None, options={}):
  39         version_manager = VersionManager()
  40         version = version_manager.get_version(version)
  41         if not slice_xrn:
  42             rspec_version = version_manager._get_version(version.type, version.version, 'ad')
  43             nodes = self.get_aggregate_nodes()
  44         else:
  45             rspec_version = version_manager._get_version(version.type, version.version, 'manifest')
  46             nodes = self.get_slice_nodes(slice_xrn)
  47
  48         rspec.version.add_nodes(nodes)
  49         return rspec.toxml()
  50
  51     def get_slice_nodes(self, slice_xrn):
  52         name = OSXrn(xrn = slice_xrn).name
  53         instances = self.driver.shell.instance_get_all_by_project(name)
  54         rspec_nodes = []
  55         for instance in instances:
  56             rspec_node = Node()
  57             xrn = OSXrn(instance.hostname, 'node')
  58             rspec_node['component_id'] = xrn.urn
  59             rspec_node['component_name'] = xrn.name
  60             rspec_node['component_manager_id'] = Xrn(self.driver.hrn, 'authority+cm').get_urn()
  61             sliver = self.instance_to_sliver(instance)
  62             rspec_node['slivers'] = [sliver]
  63             rspec_nodes.append(rspec_node)
  64         return rspec_nodes
  65
  66     def get_aggregate_nodes(self):
  67
  68         zones = self.driver.shell.zone_get_all()
  69         if not zones:
  70             zones = ['cloud']
  71         else:
  72             zones = [zone.name for zone in zones]
  73
  74         rspec_nodes = []
  75         for zone in zones:
  76             rspec_node = Node()
  77             xrn = OSXrn(zone, 'node')
  78             rspec_node['component_id'] = xrn.urn
  79             rspec_node['component_name'] = xrn.name
  80             rspec_node['component_manager_id'] = Xrn(self.driver.hrn, 'authority+cm').get_urn()
  81             rspec_node['exclusive'] = 'false'
  82             rspec_node['hardware_types'] = [HardwareType({'name': 'plos-pc'}),
  83                                                 HardwareType({'name': 'pc'})]
  84             instances = self.driver.shell.instance_type_get_all().values()
  85             slivers = [self.instance_to_sliver(inst) for inst in instances]
  86             rspec_node['slivers'] = slivers
  87             rspec_nodes.append(rspec_node)
  88
  89         return rspec_node