# Associate Elastic IP on Startup via User-data
**URL:** https://community.wowza.com/t/associate-elastic-ip-on-startup-via-user-data/36072
**Category:** Wowza Streaming Engine
**Created:** [November 24, 2011, 3:55pm UTC](https://community.wowza.com/t/associate-elastic-ip-on-startup-via-user-data/36072 "2011-11-24T15:55:23Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@Nick\_Batt](https://community.wowza.com/u/Nick_Batt)
#### Post date: [November 24, 2011, 3:55pm UTC](https://community.wowza.com/t/associate-elastic-ip-on-startup-via-user-data/36072/1 "2011-11-24T15:55:23Z")
I’m trying to streamline the EC2 startup process for third party clients.
What I need to do is have an elastic IP address associate with a WOWZA EC2 instance when I boot up. Is it possible to do this via user data?
If anyone has an example, it will be most useful. many thanks
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### Author:  [@Richard\_Lanham](https://community.wowza.com/u/Richard_Lanham)
#### Post date: [November 24, 2011, 4:46pm UTC](https://community.wowza.com/t/associate-elastic-ip-on-startup-via-user-data/36072/2 "2011-11-24T16:46:12Z")
This is not possible with Wowza Startup package, as far as I know. I’m not sure how to automate that except with EC2 command line tools
Richard
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### Author:  [@jeff\_bennyhoff](https://community.wowza.com/u/jeff_bennyhoff)
#### Post date: [December 22, 2011, 8:10am UTC](https://community.wowza.com/t/associate-elastic-ip-on-startup-via-user-data/36072/3 "2011-12-22T08:10:56Z")
> I’m trying to streamline the EC2 startup process for third party clients.
>
> What I need to do is have an elastic IP address associate with a WOWZA EC2 instance when I boot up. Is it possible to do this via user data?
>
> If anyone has an example, it will be most useful. many thanks
I am looking for very something similar. I am using the EC2 API to try and script this and got half way there.
set JAVA\_HOME=C:\Program Files\Java\jre6
set EC2\_HOME=C:\path-to-ec2-API\ec2-api-tools-1.5.0.1-2011.11.30\
set EC2\_PRIVATE\_KEY=C:\PATH-TO-PRIVATE-EC2-CERT\PRIV.pem
set EC2\_CERT=C:\PATHT-TO-PUBLIC-EC2-CERT\CERT.pem
ec2-run-instances ami-93824afa -g wowza
ec2-describe-instances
ec2-associate-address -i instanceID xx.xx.xx.xx
ec2-disassociate-address xx.xx.xx.xx
ec2-stop-instances instanceID
Looking for a clean way with a dos batch file to parse the ec2-describe-instances for the instance id to pass into the ec2-associate-address -i instanceID xx.xx.xx.xx
. If not i will have to use another language.
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### Author:  [@Ian\_Beyer](https://community.wowza.com/u/Ian_Beyer)
#### Post date: [December 23, 2011, 12:30pm UTC](https://community.wowza.com/t/associate-elastic-ip-on-startup-via-user-data/36072/4 "2011-12-23T12:30:02Z")
You can do it with unix shell (using cut/grep) or windows vbscript, although I have more experience with the former.
Your methodology is correct, however - once the run-instances is called, run describe-instances against the returned instance ID until status comes back as “running” and then do the associate-address.
Here’s an example on how to do it in unix/bash:
[http://blog.ianbeyer.com/code/ec2-startup/ec2-wowza-origin-server-startup-script/](http://blog.ianbeyer.com/code/ec2-startup/ec2-wowza-origin-server-startup-script/)
-Ian
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### Author:  [@Nick\_Batt](https://community.wowza.com/u/Nick_Batt)
#### Post date: [November 24, 2011, 9:57pm UTC](https://community.wowza.com/t/associate-elastic-ip-on-startup-via-user-data/36072/5 "2011-11-24T21:57:50Z")
Thats a drag, EC2 instances are great to fire up on demand, but having to manually assign IP too makes it a bit more cumbersome - or is there another way?