# Generate number sequence for dynamic server inventory

**URL:** <https://forum.ansible.com/t/generate-number-sequence-for-dynamic-server-inventory/22456>\
**Category:** Ansible Project\
**Tags:** aws\
**Created:** [September 1, 2016, 6:41pm UTC](https://forum.ansible.com/t/generate-number-sequence-for-dynamic-server-inventory/22456 "2016-09-01T18:41:00Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![titleistfour](https://avatars.discourse-cdn.com/v4/letter/t/65b543/32.png) [@titleistfour](https://forum.ansible.com/u/titleistfour)\
**Post date:** [September 1, 2016, 6:41pm UTC](https://forum.ansible.com/t/generate-number-sequence-for-dynamic-server-inventory/22456/1 "2016-09-01T18:41:00Z")

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Hello,

I’m currently building some servers in AWS. A set of servers will need a sequence of keys generated for each server like so, with a template that get’s pushed out.

# server 1

9011  
9012  
9013

# server 2

9021  
9022  
9023

# server 3

9031  
9032  
9033

If my inventory is dynamic, what is a good Ansible-ish way of handling this? I know I can do a “with\_sequence: start=1 end=3”, but that same ‘with’ statement does the same thing on all 3 servers. I normally would use a host\_var, but since the inventory is dynamic, I can’t do that. At least I don’t think I can.

Any ideas?

Thanks,  
Jay