def _load_keypair(self, keypair=None):
key_location = None
if keypair:
kp = self.ec2.get_keypair(keypair)
key = self.cfg.get_key(kp.name)
key_location = key.get('key_location', '')
else:
self.log.info("No keypair specified, picking one from config...")
for kp in self.ec2.keypairs:
if kp.name in self.cfg.keys:
keypair = kp.name
kl = self.cfg.get_key(kp.name).get('key_location', '')
if os.path.exists(kl) and os.path.isfile(kl):
self.log.info('Using keypair: %s' % keypair)
key_location = kl
break
if not keypair:
raise exception.ConfigError(
"no keypairs in region %s defined in config" %
self.ec2.region.name)
if not key_location:
raise exception.ConfigError(
"cannot determine key_location for keypair %s" % keypair)
if not os.path.exists(key_location):
raise exception.ValidationError(
"key_location '%s' does not exist." % key_location)
elif not os.path.isfile(key_location):
raise exception.ValidationError(
"key_location '%s' is not a file." % key_location)
return (keypair, key_location)
def _validate_size(self, size):
try:
volume_size = int(size)
if volume_size < 1:
raise exception.ValidationError(
"volume_size must be an integer >= 1")
except ValueError:
raise exception.ValidationError("volume_size must be an integer")
def _validate_host_instance(self, instance, zone):
if instance.state not in ['pending', 'running']:
raise exception.InstanceNotRunning(instance.id)
if instance.placement != zone:
raise exception.ValidationError(
"specified host instance %s is not in zone %s" %
(instance.id, zone))
return True
def _validate_image_and_type(self, image, itype):
img = self.ec2.get_image_or_none(image)
if not img:
raise exception.ValidationError('image %s does not exist' % image)
if not itype in static.INSTANCE_TYPES:
choices = ', '.join(static.INSTANCE_TYPES)
raise exception.ValidationError(
'instance_type must be one of: %s' % choices)
itype_platform = static.INSTANCE_TYPES.get(itype)
img_platform = img.architecture
if img_platform not in itype_platform:
error_msg = "instance_type %(itype)s is for an " + \
"%(iplat)s platform while image_id " + \
"%(img)s is an %(imgplat)s platform"
error_dict = {
'itype': itype,
'iplat': ', '.join(itype_platform),
'img': img.id,
'imgplat': img_platform
}
raise exception.ValidationError(error_msg % error_dict)
def _validate_device(self, device):
if not utils.is_valid_device(device):
raise exception.ValidationError("volume device %s is not valid" % \
device)
