plstackapi/openstack/driver.py

   1 from plstackapi.planetstack.config import Config
   2 from plstackapi.openstack.shell import OpenStackShell
   3
   4 class OpenStackDriver:
   5
   6     def __init__(self, config = None):
   7         if config:
   8             self.config = Config(config)
   9         else:
  10             self.config = Config()
  11         self.shell = OpenStackShell()
  12
  13     def create_tenant(self, **kwds):
  14         """Create keystone tenant. Suggested fields: name, description, enabled"""
  15         required_fields = ['tenant_name', 'enabled', 'description']
  16         for field in required_fields:
  17             if field not in kwds:
  18                 raise Exception, "Must specify %s" % field
  19
  20         tenants = self.shell.keystone.tenants.findall(name=kwds['name'])
  21         if not tenants:
  22             tenant = self.shell.keystone.tenants.create(**kwds)
  23         else:
  24             tenant = tenants[0]
  25         return tenant
  26
  27     def update_tenant(self, id, **kwds):
  28         return self.shell.keystone.tenants.update(self.id, **kwds)
  29
  30     def delete_tenant(self, id):
  31         tenant = self.shell.keystone.tenants.find(id=id)
  32         return self.shell.keystone.tenants.delete(tenant)
  33
  34
  35     def spawn_instance(self, name, key_name=None, hostname=None, flavor=None, image=None, security_group=None, pubkeys=[]):
  36         if not flavor:
  37             flavor = self.config.nova_default_flavor
  38         if not image:
  39             image = self.config.nova_default_imave
  40         if not security_group:
  41             security_group = self.config.nova_default_security_group
  42
  43         authorized_keys = "\n".join(pubkeys)
  44         files = {'/root/.ssh/authorized_keys': authorized_keys}
  45
  46         flavor_id = self.shell.nova.flavors.find(name=flavor)
  47         images = self.shell.glance.get_images(name=image)
  48         if not images:
  49             raise Exception, "Image not found: " + image
  50         image_id = images[0]['id']
  51         hints = {}
  52         if hostname:
  53             hints['force_hosts']= hostname
  54         server = self.shell.nova.servers.create(
  55                                             name=name,
  56                                             key_name = key_name,
  57                                             flavor=flavor_id,
  58                                             image=image_id,
  59                                             security_group = security_group,
  60                                             files=files,
  61                                             scheduler_hints=hints)
  62         return server
  63
  64     def destroy_instance(self, name, id=None):
  65         args = {'name': name}
  66         if id:
  67             args['id'] = id
  68         servers = self.shell.nova.servers.findall(**args)
  69         for server in servers:
  70             if name == server.name:
  71                 if not id or id == server.id:
  72                     self.shell.nova.servers.delete(server)