I can recommend: 
https://rhinstaller.github.io/anaconda-addon-development-guide/

On 11/01/2018 12:21 PM, Stephen Berg (Code 7309) wrote:
> Thanks, that appears to be exactly what I was looking for.
>
> Now to dig more into addon's since I haven't spun up on them yet.
>
> On 11/1/18 11:59 AM, Pat Riehecky wrote:
>> I believe you'll want to add this to your kickstart for SL7:
>>
>>
>>
>> %addon com_redhat_kdump --disable --reserve-mb='auto'
>>
>> %end
>>
>>
>> On 11/01/2018 11:41 AM, Stephen Berg (Code 7309) wrote:
>>> Is there an option to disable kdump from within a kickstart file 
>>> during a pxeboot install? I'd like to default to kdump being 
>>> disabled but haven't found the right option in kickstart to disable 
>>> it automatically.
>>>
>>
>
>

-- 
Pat Riehecky

Fermi National Accelerator Laboratory
www.fnal.gov
www.scientificlinux.org