# Using ansible cloudformation module with coreos

**URL:** <https://forum.ansible.com/t/using-ansible-cloudformation-module-with-coreos/16638>\
**Category:** Ansible Project\
**Created:** [October 29, 2014, 8:55pm UTC](https://forum.ansible.com/t/using-ansible-cloudformation-module-with-coreos/16638 "2014-10-29T20:55:26Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![S.Mclaughlin](https://avatars.discourse-cdn.com/v4/letter/s/c0e974/32.png) [@S.Mclaughlin](https://forum.ansible.com/u/S.Mclaughlin)\
**Post date:** [October 29, 2014, 8:55pm UTC](https://forum.ansible.com/t/using-ansible-cloudformation-module-with-coreos/16638/1 "2014-10-29T20:55:26Z")

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Hey,

I am using Ansible Cloudformation module to provision the a CoreOS cluster. I configured the playbook based on the instructions on the Cloudformation module’s page but I am lost as to what should be in the host file. Can someone please advise? Thanks.

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**Author:** ![Michael\_DeHaan1](https://avatars.discourse-cdn.com/v4/letter/m/5e9695/32.png) [@Michael\_DeHaan1](https://forum.ansible.com/u/Michael_DeHaan1)\
**Post date:** [October 30, 2014, 8:47pm UTC](https://forum.ansible.com/t/using-ansible-cloudformation-module-with-coreos/16638/2 "2014-10-30T20:47:45Z")

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By hostfile, do you mean the ansible inventory file?

If you are intending to configure machines to run coreos, this would be the list of all your “hypervisor” hosts. Otherwise, it might be the machines you wish to manage.

Coreos is bad in that it doesn’t ship with Python, though so you may need to tweak things to add this.