# ec2\_asg Missing required arguments for autoscaling group create/update: launch\_config\_name

**URL:** <https://forum.ansible.com/t/ec2-asg-missing-required-arguments-for-autoscaling-group-create-update-launch-config-name/18441>\
**Category:** Ansible Project\
**Created:** [June 9, 2015, 1:01am UTC](https://forum.ansible.com/t/ec2-asg-missing-required-arguments-for-autoscaling-group-create-update-launch-config-name/18441 "2015-06-09T01:01:56Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![igorc](https://sea1.discourse-cdn.com/ansible/user_avatar/forum.ansible.com/igorc/32/5491_2.png) [@igorc](https://forum.ansible.com/u/igorc)\
**Post date:** [June 9, 2015, 1:01am UTC](https://forum.ansible.com/t/ec2-asg-missing-required-arguments-for-autoscaling-group-create-update-launch-config-name/18441/1 "2015-06-09T01:01:56Z")

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When using ec2\_asg I get:

TASK: [ec2\_asg] \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*  
failed: [localhost] =\> {“failed”: true}  
msg: Missing required arguments for autoscaling group create/update: launch\_config\_name

where is in the module man page:

[http://docs.ansible.com/ec2\_asg\_module.html](http://docs.ansible.com/ec2_asg_module.html)

this attribute is listed as not required.

This is on Ansible 1.9.1

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**Author:** ![benno\_joy](https://avatars.discourse-cdn.com/v4/letter/b/73ab20/32.png) [@benno\_joy](https://forum.ansible.com/u/benno_joy)\
**Post date:** [June 9, 2015, 2:13am UTC](https://forum.ansible.com/t/ec2-asg-missing-required-arguments-for-autoscaling-group-create-update-launch-config-name/18441/2 "2015-06-09T02:13:12Z")

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Hi,

It seems like it is a documentation bug, the min\_size, max\_size and lc\_config\_name are required paramters, there is a feature request to add default values to min\_size and max\_size , could you please raise a bug report for this in github.

- Benno

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<div class="post-metadata">

**Author:** ![igorc](https://sea1.discourse-cdn.com/ansible/user_avatar/forum.ansible.com/igorc/32/5491_2.png) [@igorc](https://forum.ansible.com/u/igorc)\
**Post date:** [June 9, 2015, 2:21am UTC](https://forum.ansible.com/t/ec2-asg-missing-required-arguments-for-autoscaling-group-create-update-launch-config-name/18441/3 "2015-06-09T02:21:58Z")

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Done.

[https://github.com/ansible/ansible/issues/11209](https://github.com/ansible/ansible/issues/11209)