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Make the ec2 wait code a little smarter

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The code to determine the number of running instances could blow up
if the response from AWS did not actually contain any data. This code
makes it a bit smarter in handling, so that it will wait for a valid
response regardless of the wait condition.

Fixes #3980
This commit is contained in:
James Cammarata 2013-09-25 16:12:38 -05:00
parent 1c97831288
commit 8b010cbb45
1 changed files with 15 additions and 6 deletions
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21
library/cloud/ec2
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@ -477,15 +477,24 @@ def create_instances(module, ec2):
module.fail_json(msg = "%s: %s" % (e.error_code, e.error_message))
# wait here until the instances are up
res_list = res.connection.get_all_instances(instids)
this_res = res_list[0]
this_res = []
num_running = 0
wait_timeout = time.time() + wait_timeout
while wait and wait_timeout > time.time() and num_running < len(instids):
while wait_timeout > time.time() and num_running < len(instids):
res_list = res.connection.get_all_instances(instids)
this_res = res_list[0]
num_running = len([ i for i in this_res.instances if i.state=='running' ])
time.sleep(5)
if len(res_list) > 0:
this_res = res_list[0]
num_running = len([ i for i in this_res.instances if i.state=='running' ])
else:
# got a bad response of some sort, possibly due to
# stale/cached data. Wait a second and then try again
time.sleep(1)
continue
if wait and num_running < len(instids):
time.sleep(5)
else:
break
if wait and wait_timeout <= time.time():
# waiting took too long
module.fail_json(msg = "wait for instances running timeout on %s" % time.asctime())