plstackapi/openstack/manager.py

   1 from plstackapi.planetstack import settings
   2 from django.core import management
   3 management.setup_environ(settings)
   4 try:
   5     from plstackapi.openstack.client import OpenStackClient
   6     from plstackapi.openstack.driver import OpenStackDriver
   7     from plstackapi.planetstack.config import Config
   8     from plstackapi.core.models import *
   9     has_openstack = True
  10 except:
  11     has_openstack = False
  12
  13 def require_enabled(callable):
  14     enabled = Config().api_nova_enabled
  15     def wrapper(*args, **kwds):
  16         if enabled and has_openstack:
  17             return callable(*args, **kwds)
  18         else:
  19             return None
  20     return wrapper
  21
  22
  23 class OpenStackManager:
  24
  25     def __init__(self, auth={}, caller=None):
  26         self.client = None
  27         if auth:
  28             self.client = OpenStackClient(**auth)
  29
  30         self.driver = OpenStackDriver(client=self.client)
  31         self.caller=None
  32
  33     @require_enabled
  34     def save_role(self, role):
  35         if not role.role_id:
  36             keystone_role = self.driver.create_role(role.role_type)
  37             role.role_id = keystone_role.id
  38
  39     @require_enabled
  40     def delete_role(self, role):
  41         if role.role_id:
  42             self.driver.delete_role({'id': role.role_id})
  43
  44     @require_enabled
  45     def save_key(self, key):
  46         if not key.key_id:
  47             key_fields = {'name': key.name,
  48                           'key': key.key}
  49             nova_key = self.driver.create_keypair(**key_fields)
  50             key.key_id = nova_key.id
  51
  52     @require_enabled
  53     def delete_key(self, key):
  54         if key.key_id:
  55             self.driver.delete_keypair(key.key_id)
  56
  57     @require_enabled
  58     def save_user(self, user):
  59         if not user.user_id:
  60             name = user.email[:user.email.find('@')]
  61             user_fields = {'name': name,
  62                            'email': user.email,
  63                            'password': user.password,
  64                            'enabled': True}
  65             keystone_user = self.driver.create_user(**user_fields)
  66             user.user_id = keystone_user.id
  67
  68     @require_enabled
  69     def delete_user(self, user):
  70         if user.user_id:
  71             self.driver.delete_user(user.user_id)
  72
  73
  74     def refresh_nodes(self):
  75         # collect local nodes
  76         nodes = Node.objects.all()
  77         nodes_dict = {}
  78         for node in nodes:
  79             if 'viccidev10' not in node.name:
  80                 nodes_dict[node.name] = node
  81
  82         deployment = DeploymentNetwork.objects.filter(name='VICCI')[0]
  83         login_bases = ['princeton', 'stanford', 'gt', 'uw', 'mpisws']
  84         sites = Site.objects.filter(login_base__in=login_bases)
  85         # collect nova nodes:
  86         compute_nodes = self.client.nova.hypervisors.list()
  87
  88         compute_nodes_dict = {}
  89         for compute_node in compute_nodes:
  90             compute_nodes_dict[compute_node.hypervisor_hostname] = compute_node
  91
  92         # add new nodes:
  93         new_node_names = set(compute_nodes_dict.keys()).difference(nodes_dict.keys())
  94         i = 0
  95         max = len(sites)
  96         for name in new_node_names:
  97             if i == max:
  98                 i = 0
  99             site = sites[i]
 100             node = Node(name=compute_nodes_dict[name].hypervisor_hostname,
 101                         site=site,
 102                         deploymentNetwork=deployment)
 103             node.save()
 104             i+=1
 105
 106         # remove old nodes
 107         old_node_names = set(nodes_dict.keys()).difference(compute_nodes_dict.keys())
 108         Node.objects.filter(name__in=old_node_names).delete()
 109
 110     def refresh_images(self):
 111         # collect local images
 112         images = Image.objects.all()
 113         images_dict = {}
 114         for image in images:
 115             images_dict[image.name] = image
 116
 117         # collect glance images
 118         glance_images = self.client.glance.get_images()
 119         glance_images_dict = {}
 120         for glance_image in glance_images:
 121             glance_images_dict[glance_image['name']] = glance_image
 122
 123         # add new images
 124         new_image_names = set(glance_images_dict.keys()).difference(images_dict.keys())
 125         for name in new_image_names:
 126             image = Image(image_id=glance_images_dict[name]['id'],
 127                           name=glance_images_dict[name]['name'],
 128                           disk_format=glance_images_dict[name]['disk_format'],
 129                           container_format=glance_images_dict[name]['container_format'])
 130             image.save()
 131
 132         # remove old images
 133         old_image_names = set(images_dict.keys()).difference(glance_images_dict.keys())
 134         Image.objects.filter(name__in=old_image_names).delete()
 135
 136