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[cloud] EC2_ASG Set desired capacity to min_size if no instances exist (#30987)

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* Set desired capacity to min_size if no instances exist

* Improve readability of if/then clause

* Only update null desired_capacity to min_size on initial create

Any future updates to the ASG will be able to reference the existing
capacity.
This commit is contained in:
Bradford Dabbs 2017-10-05 13:56:46 -05:00 committed by Ryan Brown
parent cb01f33d1e
commit f219d6b96d
1 changed files with 9 additions and 3 deletions
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12
lib/ansible/modules/cloud/amazon/ec2_asg.py
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@ -806,6 +806,8 @@ def create_autoscaling_group(connection, module):
launch_configs = describe_launch_configurations(connection, launch_config_name)
if len(launch_configs['LaunchConfigurations']) == 0:
module.fail_json(msg="No launch config found with name %s" % launch_config_name)
if desired_capacity is None:
desired_capacity = min_size
ag = dict(
AutoScalingGroupName=group_name,
LaunchConfigurationName=launch_configs['LaunchConfigurations'][0]['LaunchConfigurationName'],
@ -952,9 +954,13 @@ def create_autoscaling_group(connection, module):
attach_lb_target_groups(connection, group_name, list(tgs_to_attach))
# check for attributes that aren't required for updating an existing ASG
desired_capacity = desired_capacity if desired_capacity is not None else as_group['DesiredCapacity']
min_size = min_size if min_size is not None else as_group['MinSize']
max_size = max_size if max_size is not None else as_group['MaxSize']
# 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['MinSize']
if max_size is None:
max_size = as_group['MaxSize']
if desired_capacity is None:
desired_capacity = as_group['DesiredCapacity']
launch_config_name = launch_config_name or as_group['LaunchConfigurationName']
launch_configs = describe_launch_configurations(connection, launch_config_name)