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