import time
from heatclient.exc import HTTPNotFound
-from snaps.openstack.utils import heat_utils
+
+from snaps.openstack.create_instance import OpenStackVmInstance
+from snaps.openstack.utils import nova_utils, settings_utils, glance_utils
+
+from snaps.openstack.create_network import OpenStackNetwork
+from snaps.openstack.utils import heat_utils, neutron_utils
__author__ = 'spisarski'
STATUS_CREATE_FAILED = 'CREATE_FAILED'
STATUS_CREATE_COMPLETE = 'CREATE_COMPLETE'
STATUS_DELETE_COMPLETE = 'DELETE_COMPLETE'
+STATUS_DELETE_FAILED = 'DELETE_FAILED'
class OpenStackHeatStack:
Class responsible for creating an heat stack in OpenStack
"""
- def __init__(self, os_creds, stack_settings):
+ def __init__(self, os_creds, stack_settings, image_settings=None,
+ keypair_settings=None):
"""
Constructor
:param os_creds: The OpenStack connection credentials
:param stack_settings: The stack settings
+ :param image_settings: A list of ImageSettings objects that were used
+ for spawning this stack
+ :param image_settings: A list of ImageSettings objects that were used
+ for spawning this stack
+ :param keypair_settings: A list of KeypairSettings objects that were
+ used for spawning this stack
:return:
"""
self.__os_creds = os_creds
self.stack_settings = stack_settings
+
+ if image_settings:
+ self.image_settings = image_settings
+ else:
+ self.image_settings = None
+
+ if image_settings:
+ self.keypair_settings = keypair_settings
+ else:
+ self.keypair_settings = None
+
self.__stack = None
self.__heat_cli = None
"""
Creates the heat stack in OpenStack if it does not already exist and
returns the domain Stack object
- :param cleanup: Denotes whether or not this is being called for cleanup
+ :param cleanup: When true, this object is initialized only via queries,
+ else objects will be created when the queries return
+ None. The name of this parameter should be changed to
+ something like 'readonly' as the same goes with all of
+ the other creator classes.
:return: The OpenStack Stack object
"""
self.__heat_cli = heat_utils.heat_client(self.__os_creds)
"""
if self.__stack:
try:
+ logger.info('Deleting stack - %s' + self.__stack.name)
+ heat_utils.delete_stack(self.__heat_cli, self.__stack)
+
+ try:
+ self.stack_deleted(block=True)
+ except StackError as e:
+ # Stack deletion seems to fail quite a bit
+ logger.warn('Stack did not delete properly - %s', e)
+
+ # Delete VMs first
+ for vm_inst_creator in self.get_vm_inst_creators():
+ try:
+ vm_inst_creator.clean()
+ if not vm_inst_creator.vm_deleted(block=True):
+ logger.warn('Unable to deleted VM - %s',
+ vm_inst_creator.get_vm_inst().name)
+ except:
+ logger.warn('Unexpected error deleting VM - %s ',
+ vm_inst_creator.get_vm_inst().name)
+
+ logger.info('Attempting to delete again stack - %s',
+ self.__stack.name)
+
+ # Delete Stack again
heat_utils.delete_stack(self.__heat_cli, self.__stack)
+ deleted = self.stack_deleted(block=True)
+ if not deleted:
+ raise StackError(
+ 'Stack could not be deleted ' + self.__stack.name)
except HTTPNotFound:
pass
- self.__stack = None
+ self.__stack = None
def get_stack(self):
"""
object
:return:
"""
- return heat_utils.get_stack_outputs(self.__heat_cli, self.__stack.id)
+ return heat_utils.get_outputs(self.__heat_cli, self.__stack)
def get_status(self):
"""
if not timeout:
timeout = self.stack_settings.stack_create_timeout
return self._stack_status_check(STATUS_CREATE_COMPLETE, block, timeout,
- poll_interval)
+ poll_interval, STATUS_CREATE_FAILED)
+
+ def stack_deleted(self, block=False, timeout=None,
+ poll_interval=POLL_INTERVAL):
+ """
+ Returns true when the stack status returns the value of
+ expected_status_code
+ :param block: When true, thread will block until active or timeout
+ value in seconds has been exceeded (False)
+ :param timeout: The timeout value
+ :param poll_interval: The polling interval in seconds
+ :return: T/F
+ """
+ if not timeout:
+ timeout = self.stack_settings.stack_create_timeout
+ return self._stack_status_check(STATUS_DELETE_COMPLETE, block, timeout,
+ poll_interval, STATUS_DELETE_FAILED)
+
+ def get_network_creators(self):
+ """
+ Returns a list of network creator objects as configured by the heat
+ template
+ :return: list() of OpenStackNetwork objects
+ """
+
+ neutron = neutron_utils.neutron_client(self.__os_creds)
+
+ out = list()
+ stack_networks = heat_utils.get_stack_networks(
+ self.__heat_cli, neutron, self.__stack)
+
+ for stack_network in stack_networks:
+ net_settings = settings_utils.create_network_settings(
+ neutron, stack_network)
+ net_creator = OpenStackNetwork(self.__os_creds, net_settings)
+ out.append(net_creator)
+ net_creator.create(cleanup=True)
+
+ return out
+
+ def get_vm_inst_creators(self, heat_keypair_option=None):
+ """
+ Returns a list of VM Instance creator objects as configured by the heat
+ template
+ :return: list() of OpenStackVmInstance objects
+ """
+
+ out = list()
+ nova = nova_utils.nova_client(self.__os_creds)
+
+ stack_servers = heat_utils.get_stack_servers(
+ self.__heat_cli, nova, self.__stack)
+
+ neutron = neutron_utils.neutron_client(self.__os_creds)
+ glance = glance_utils.glance_client(self.__os_creds)
+
+ for stack_server in stack_servers:
+ vm_inst_settings = settings_utils.create_vm_inst_settings(
+ nova, neutron, stack_server)
+ image_settings = settings_utils.determine_image_settings(
+ glance, stack_server, self.image_settings)
+ keypair_settings = settings_utils.determine_keypair_settings(
+ self.__heat_cli, self.__stack, stack_server,
+ keypair_settings=self.keypair_settings,
+ priv_key_key=heat_keypair_option)
+ vm_inst_creator = OpenStackVmInstance(
+ self.__os_creds, vm_inst_settings, image_settings,
+ keypair_settings)
+ out.append(vm_inst_creator)
+ vm_inst_creator.create(cleanup=True)
+
+ return out
def _stack_status_check(self, expected_status_code, block, timeout,
- poll_interval):
+ poll_interval, fail_status):
"""
Returns true when the stack status returns the value of
expected_status_code
value in seconds has been exceeded (False)
:param timeout: The timeout value
:param poll_interval: The polling interval in seconds
+ :param fail_status: Returns false if the fail_status code is found
:return: T/F
"""
# sleep and wait for stack status change
start = time.time() - timeout
while timeout > time.time() - start:
- status = self._status(expected_status_code)
+ status = self._status(expected_status_code, fail_status)
if status:
logger.debug(
'Stack is active with name - ' + self.stack_settings.name)
'Timeout checking for stack status for ' + expected_status_code)
return False
- def _status(self, expected_status_code):
+ def _status(self, expected_status_code, fail_status=STATUS_CREATE_FAILED):
"""
Returns True when active else False
:param expected_status_code: stack status evaluated with this string
'Cannot stack status for stack with ID - ' + self.__stack.id)
return False
- if status == STATUS_CREATE_FAILED:
- raise StackCreationError('Stack had an error during deployment')
+ if fail_status and status == fail_status:
+ raise StackError('Stack had an error')
logger.debug('Stack status is - ' + status)
return status == expected_status_code
Exception to be thrown when an stack settings are incorrect
"""
- def __init__(self, message):
- Exception.__init__(self, message)
-
class StackCreationError(Exception):
"""
Exception to be thrown when an stack cannot be created
"""
- def __init__(self, message):
- Exception.__init__(self, message)
+
+class StackError(Exception):
+ """
+ General exception
+ """
Code Review / snaps.git / blobdiff