def wait_for_stack_status(cf_conn, stack_name, stack_status):
sys.stdout.write("Waiting for stack to enter '{s}' state.".format(s=stack_status))
sys.stdout.flush()
start_time = datetime.now()
while True:
sleep_progressive(start_time)
stack = cf_conn.describe_stacks(stack_name)[0]
if stack.stack_status == stack_status:
break
sys.stdout.write(".")
sys.stdout.flush()
sys.stdout.write("\n")
end_time = datetime.now()
print "Stack is now in '{s}' state. Waited {t} seconds.".format(s=stack_status, t=(end_time - start_time).seconds)
def wait_for_instance_state(ec2_conn, instance, state="running"):
sys.stdout.write("Waiting for instance to enter '{s}' state.".format(s=state))
sys.stdout.flush()
start_time = datetime.now()
while True:
sleep_progressive(start_time)
instance.update()
statuses = ec2_conn.get_all_instance_status(instance.id, include_all_instances=True)
if len(statuses) > 0:
status = statuses[0]
if (
instance.state == state
and status.system_status.status in ["ok", "not-applicable"]
and status.instance_status.status in ["ok", "not-applicable"]
):
break
sys.stdout.write(".")
sys.stdout.flush()
sys.stdout.write("\n")
end_time = datetime.now()
print "Instance is now in '{s}' state. Waited {t} seconds.".format(s=state, t=(end_time - start_time).seconds)
