dynamicweb/opennebula_api/models.py
2017-05-09 17:15:12 +02:00

74 lines
2.4 KiB
Python

import oca
import socket
from django.db import models
from django.conf import settings
from oca.pool import WrongNameError
class VirtualMachineTemplate(models.Model):
"""This class represents an opennebula template."""
opennebula_id = models.IntegerField()
base_price = models.FloatField()
memory_price = models.FloatField()
core_price = models.FloatField()
disk_size_price = models.FloatField()
class VirtualMachine(models.Model):
"""This class represents an opennebula virtual machine."""
opennebula_id = models.IntegerField()
template = models.ForeignKey(VirtualMachineTemplate)
class OpenNebulaManager():
"""This class represents an opennebula manager."""
def __init__(self, email=None, password=None, create_user=True):
# Get oneadmin client
self.oneadmin_client = self._get_opennebula_client(
settings.OPENNEBULA_USERNAME,
settings.OPENNEBULA_PASSWORD
)
if not create_user:
return
# Get or create oppenebula user using given credentials
self.opennebula_user = self._get_or_create_user(
email,
password
)
# If opennebula user was created/obtained, get his client
if self.opennebula_user:
self.client = self._get_opennebula_client(
email,
password
)
def _get_opennebula_client(self, username, password):
return oca.Client("{0}:{1}".format(
username,
password),
"{protocol}://{domain}:{port}{endpoint}".format(
protocol=settings.OPENNEBULA_PROTOCOL,
domain=settings.OPENNEBULA_DOMAIN,
port=settings.OPENNEBULA_PORT,
endpoint=settings.OPENNEBULA_ENDPOINT
))
def _get_or_create_user(self, email, password):
try:
user_pool = oca.UserPool(self.oneadmin_client)
user_pool.info()
opennebula_user = user_pool.get_by_name(email)
return opennebula_user
except WrongNameError as wrong_name_err:
opennebula_user = self.oneadmin_client.call(oca.User.METHODS['allocate'], email,
password, 'core')
return opennebula_user
def _get_user_pool(self):
user_pool = oca.UserPool(self.oneadmin_client)
user_pool.info()
return user_pool