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Avoid TypeError when desired_capacity is not provided to ec2_asg module (#5501)

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Moving the "check if min_size/max_size/desired_capacity..." code to execute BEFORE the desired_capacity code is used in the following operation:
num_new_inst_needed = desired_capacity - len(new_instances)

Otherwise the following exception occurs when desired_capacity is not specified and you're replacing instances:
    num_new_inst_needed = desired_capacity - len(new_instances)
TypeError: unsupported operand type(s) for -: 'NoneType' and 'int'

Stack Trace:

An exception occurred during task execution. The full traceback is:
Traceback (most recent call last):
  File "/var/lib/awx/.ansible/tmp/ansible-tmp-1478229985.74-62334493713074/ec2_asg", line 3044, in <module>
    main()
  File "/var/lib/awx/.ansible/tmp/ansible-tmp-1478229985.74-62334493713074/ec2_asg", line 3038, in main
    replace_changed, asg_properties=replace(connection, module)
  File "/var/lib/awx/.ansible/tmp/ansible-tmp-1478229985.74-62334493713074/ec2_asg", line 2778, in replace
    num_new_inst_needed = desired_capacity - len(new_instances)
TypeError: unsupported operand type(s) for -: 'NoneType' and 'int'

fatal: [localhost]: FAILED! => {"changed": false, "failed": true, "invocation": {"module_name": "ec2_asg"}, "module_stderr": "Traceback (most recent call last):\n  File \"/var/lib/awx/.ansible/tmp/ansible-tmp-1478229985.74-62334493713074/ec2_asg\", line 3044, in <module>\n    main()\n  File \"/var/lib/awx/.ansible/tmp/ansible-tmp-1478229985.74-62334493713074/ec2_asg\", line 3038, in main\n    replace_changed, asg_properties=replace(connection, module)\n  File \"/var/lib/awx/.ansible/tmp/ansible-tmp-1478229985.74-62334493713074/ec2_asg\", line 2778, in replace\n    num_new_inst_needed = desired_capacity - len(new_instances)\nTypeError: unsupported operand type(s) for -: 'NoneType' and 'int'\n", "module_stdout": "", "msg": "MODULE FAILURE", "parsed": false}
	to retry, use: --limit @
This commit is contained in:
einarc 2016-11-11 10:10:22 -08:00 committed by Matt Clay
parent dc4cff7350
commit 22df46d168
1 changed files with 9 additions and 8 deletions
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17
lib/ansible/modules/cloud/amazon/ec2_asg.py
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@ -611,6 +611,14 @@ def replace(connection, module):
instances = props['instances']
if replace_instances:
instances = replace_instances
#check if min_size/max_size/desired capacity have been specified and if not use ASG values
if min_size is None:
min_size = as_group.min_size
if max_size is None:
max_size = as_group.max_size
if desired_capacity is None:
desired_capacity = as_group.desired_capacity
# check to see if instances are replaceable if checking launch configs
new_instances, old_instances = get_instances_by_lc(props, lc_check, instances)
@ -633,14 +641,7 @@ def replace(connection, module):
if not old_instances:
changed = False
return(changed, props)
#check if min_size/max_size/desired capacity have been specified and if not use ASG values
if min_size is None:
min_size = as_group.min_size
if max_size is None:
max_size = as_group.max_size
if desired_capacity is None:
desired_capacity = as_group.desired_capacity
# set temporary settings and wait for them to be reached
# This should get overwritten if the number of instances left is less than the batch size.