def _get_instance_avail_set(self, instance_name):
""" _get_instance_avail_set is a helper method which, given the
name of an instance, returns the fully qualified URI of the
availabilitySet the instance is a part of.
"""
# first; check for the instance's existence:
if instance_name not in self._context.heat_resource_stack:
raise exceptions.AutoScalingGroupInvalidFieldException(
"'%s': referenced Instance '%s' does not exist." % (
self, instance_name
)
)
instance = self._context.heat_resource_stack[instance_name]
# now; check if the instance has an explicit AvailabilityZone set:
if 'AvailabilityZone' in instance.properties:
# if so, return a reference to the availabilitySet
# which the EC2InstanceTranslator will create:
self._required_avail_set_name = instance_name
return autoscale_utils.create_avail_set_uri(
instance.properties["AvailabilityZone"]
)
# else, default to returning the uri of an availabilitySet we will be
# creating especially for this AutoScalingGroup's instance.
# NOTE: we must also set _requires_own_avail_set beforehand:
self._requires_own_avail_set = True
self._required_avail_set_name = instance_name
return autoscale_utils.create_avail_set_uri(instance_name)
def _get_instance_avail_set(self, instance_name):
""" _get_instance_avail_set is a helper method which, given the
name of an instance, returns the fully qualified URI of the
availabilitySet the instance is a part of.
"""
# first; check for the instance's existence:
if instance_name not in self._context.heat_resource_stack:
raise exceptions.AutoScalingGroupInvalidFieldException(
"'%s': referenced Instance '%s' does not exist." %
(self, instance_name))
instance = self._context.heat_resource_stack[instance_name]
# now; check if the instance has an explicit AvailabilityZone set:
if 'AvailabilityZone' in instance.properties:
# if so, return a reference to the availabilitySet
# which the EC2InstanceTranslator will create:
self._required_avail_set_name = instance_name
return autoscale_utils.create_avail_set_uri(
instance.properties["AvailabilityZone"])
# else, default to returning the uri of an availabilitySet we will be
# creating especially for this AutoScalingGroup's instance.
# NOTE: we must also set _requires_own_avail_set beforehand:
self._requires_own_avail_set = True
self._required_avail_set_name = instance_name
return autoscale_utils.create_avail_set_uri(instance_name)
def _get_launch_config_avail_set(self, launch_config_name):
""" _get_launch_config_avail_set is a helper method which recieves the
name of a LaunchConfiguration and returns the fully qualified URI of
the resulting Azure availabilitySet which the instances partaking in
the LaunchConfiguration will be a part of.
"""
# first; make sure the LaunchConfiguration is defined:
if launch_config_name not in self._context.heat_resource_stack:
raise exceptions.AutoScalingGroupInvalidFieldException(
"'%s': referenced LaunchConfiguration '%s' doesn't exist." %
(self, launch_config_name))
# default to returning the uri of an availabilitySet we will be
# creating especially for this AutoScalingGroup's instance.
# NOTE: considering LaunchConfigs are translated roughly the same way
# as instances; we simply apply the same logic here:
self._requires_own_avail_set = True
self._required_avail_set_name = launch_config_name
return autoscale_utils.create_avail_set_uri(launch_config_name)
def _get_launch_config_avail_set(self, launch_config_name):
""" _get_launch_config_avail_set is a helper method which recieves the
name of a LaunchConfiguration and returns the fully qualified URI of
the resulting Azure availabilitySet which the instances partaking in
the LaunchConfiguration will be a part of.
"""
# first; make sure the LaunchConfiguration is defined:
if launch_config_name not in self._context.heat_resource_stack:
raise exceptions.AutoScalingGroupInvalidFieldException(
"'%s': referenced LaunchConfiguration '%s' doesn't exist." % (
self, launch_config_name
)
)
# default to returning the uri of an availabilitySet we will be
# creating especially for this AutoScalingGroup's instance.
# NOTE: considering LaunchConfigs are translated roughly the same way
# as instances; we simply apply the same logic here:
self._requires_own_avail_set = True
self._required_avail_set_name = launch_config_name
return autoscale_utils.create_avail_set_uri(launch_config_name)
