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ec2-driver
Code Issues Proposed changes

Aparna & Cameron | Added a try & except in the wait_for_image_state(), cos on snapshot, the image may not be ready to be queried rightaway

This commit is contained in:
asparikh 2014-09-30 12:53:52 -05:00
parent c58cd78351
commit 7c171ce6ed
1 changed files with 12 additions and 8 deletions
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20
ec2driver.py
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@ -15,6 +15,7 @@
"""Connection to the Amazon Web Services - EC2 service"""
from boto import ec2
from boto import exception as boto_exc
from ec2driver_config import *
from oslo.config import cfg
@ -167,18 +168,21 @@ class EC2Driver(driver.ComputeDriver):
if desired_state == 'running':
timer = loopingcall.FixedIntervalLoopingCall(_wait_for_status_check)
timer.start(interval=0.5).wait()
def _wait_for_image_state(self, ami_id, desired_state):
# Timer to wait for the iamge to reach a state
def _wait_for_state():
"""Called at an interval until the AMI image is available."""
images = self.ec2_conn.get_all_images(image_ids=[ami_id], owners=None,
executable_by=None, filters=None, dry_run=None)
state = images[0].state
# LOG.info("\n\n\nImage id = %s" % ami_id + ", state = %s\n\n\n" % state)
if state == desired_state:
LOG.info("Image has changed state to %s." % desired_state)
raise loopingcall.LoopingCallDone()
try:
images = self.ec2_conn.get_all_images(image_ids=[ami_id], owners=None,
executable_by=None, filters=None, dry_run=None)
state = images[0].state
# LOG.info("\n\n\nImage id = %s" % ami_id + ", state = %s\n\n\n" % state)
if state == desired_state:
LOG.info("Image has changed state to %s." % desired_state)
raise loopingcall.LoopingCallDone()
except boto_exc.EC2ResponseError:
LOG.info("************** EC2ResponseError thrown!!! *****************************")
pass
timer = loopingcall.FixedIntervalLoopingCall(_wait_for_state)
timer.start(interval=0.5).wait()