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better timeout logic when deleting vm disks. Python 2.4 safe excepts

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This commit is contained in:
Chris Meyers 2015-04-22 17:57:37 -04:00 committed by Matt Clay
parent cdcaa2d6a0
commit cec3c8c209
1 changed files with 31 additions and 22 deletions
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51
lib/ansible/modules/cloud/azure/azure.py
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@ -144,6 +144,7 @@ import os
import sys
import time
from urlparse import urlparse
from ansible.module_utils.facts import * # TimeoutError
AZURE_LOCATIONS = ['South Central US',
'Central US',
@ -215,6 +216,23 @@ def _wait_for_completion(azure, promise, wait_timeout, msg):
raise WindowsAzureError('Timed out waiting for async operation ' + msg + ' "' + str(promise.request_id) + '" to complete.')
def _delete_disks_when_detached(azure, wait_timeout, disk_names):
def _handle_timeout(signum, frame):
raise TimeoutError("Timeout reached while waiting for disks to become detached.")
signal.signal(signal.SIGALRM, _handle_timeout)
signal.alarm(wait_timeout)
try:
while len(disk_names) > 0:
for disk_name in disk_names:
disk = azure.get_disk(disk_name)
if disk.attached_to is None:
azure.delete_disk(disk.name, True)
disk_names.remove(disk_name)
except WindowsAzureError, e:
module.fail_json(msg="failed to get or delete disk, error was: %s" % (disk_name, str(e)))
finally:
signal.alarm(0)
def get_ssh_certificate_tokens(module, ssh_cert_path):
"""
@ -268,7 +286,7 @@ def create_virtual_machine(module, azure):
result = azure.create_hosted_service(service_name=name, label=name, location=location)
_wait_for_completion(azure, result, wait_timeout, "create_hosted_service")
changed = True
except WindowsAzureError as e:
except WindowsAzureError, e:
module.fail_json(msg="failed to create the new service, error was: %s" % str(e))
try:
@ -329,13 +347,13 @@ def create_virtual_machine(module, azure):
virtual_network_name=virtual_network_name)
_wait_for_completion(azure, result, wait_timeout, "create_virtual_machine_deployment")
changed = True
except WindowsAzureError as e:
except WindowsAzureError, e:
module.fail_json(msg="failed to create the new virtual machine, error was: %s" % str(e))
try:
deployment = azure.get_deployment_by_name(service_name=name, deployment_name=name)
return (changed, urlparse(deployment.url).hostname, deployment)
except WindowsAzureError as e:
except WindowsAzureError, e:
module.fail_json(msg="failed to lookup the deployment information for %s, error was: %s" % (name, str(e)))
@ -363,9 +381,9 @@ def terminate_virtual_machine(module, azure):
disk_names = []
try:
deployment = azure.get_deployment_by_name(service_name=name, deployment_name=name)
except WindowsAzureMissingResourceError as e:
except WindowsAzureMissingResourceError, e:
pass # no such deployment or service
except WindowsAzureError as e:
except WindowsAzureError, e:
module.fail_json(msg="failed to find the deployment, error was: %s" % str(e))
# Delete deployment
@ -378,37 +396,28 @@ def terminate_virtual_machine(module, azure):
role_props = azure.get_role(name, deployment.name, role.role_name)
if role_props.os_virtual_hard_disk.disk_name not in disk_names:
disk_names.append(role_props.os_virtual_hard_disk.disk_name)
except WindowsAzureError as e:
except WindowsAzureError, e:
module.fail_json(msg="failed to get the role %s, error was: %s" % (role.role_name, str(e)))
try:
result = azure.delete_deployment(name, deployment.name)
_wait_for_completion(azure, result, wait_timeout, "delete_deployment")
except WindowsAzureError as e:
except WindowsAzureError, e:
module.fail_json(msg="failed to delete the deployment %s, error was: %s" % (deployment.name, str(e)))
# It's unclear when disks associated with terminated deployment get detatched.
# Thus, until the wait_timeout is reached, we continue to delete disks as they
# become detatched by polling the list of remaining disks and examining the state.
wait_start = time.time()
while len(disk_names) > 0:
try:
for disk_name in disk_names:
disk = azure.get_disk(disk_name)
if disk.attached_to is None:
azure.delete_disk(disk.name, True)
disk_names.remove(disk_name)
except WindowsAzureError as e:
module.fail_json(msg="failed to get or delete disk, error was: %s" % (disk_name, str(e)))
if (time.time() - wait_start) > wait_timeout:
module.fail_json(msg="Timeout reached while waiting for disks to become detached.")
_delete_disks_when_detached(azure, wait_timeout, disk_names)
except (WindowsAzureError, TimeoutError), e:
module.fail_json(msg=str(e))
try:
# Now that the vm is deleted, remove the cloud service
result = azure.delete_hosted_service(service_name=name)
_wait_for_completion(azure, result, wait_timeout, "delete_hosted_service")
except WindowsAzureError as e:
except WindowsAzureError, e:
module.fail_json(msg="failed to delete the service %s, error was: %s" % (name, str(e)))
public_dns_name = urlparse(deployment.url).hostname
@ -510,7 +519,7 @@ class Wrapper(object):
while wait_timeout > time.time():
try:
return f()
except WindowsAzureError as e:
except WindowsAzureError, e:
if not str(e).lower().find("temporary redirect") == -1:
time.sleep(5)
pass