No, the app will not work as expected in Splunk Cloud or Enterprise. Its written for Hunk, and will throw this error:
Error in 'ResultProvider': Permission denied. License does not allow execution of searches for virtual_index=elb, provider_family=hadoop
I did spend some time today re-working it to run on Splunk Cloud / Enterprise. In it, I have removed the inputs.conf and changed the sourcetype to be elb, not aws_elb.
This app assumes you have your s3: input working somehow and putting in the data as sourcetype=elb
You can get the modded version of it here.
I did talk to the creator of the ELB Hunk app, Dritan, and he said this:
the app remains Hunk only because we
don¹t have an [official] S3 input yet.
In fact, when we do, there are
optimizations that [will be made].
This is great, I was thinking about going through and doing the same thing, thanks for sharing.