Minor updates

[ryanfaircloth]

what

• Updates to Dockerfile
• Add support for typical conf files

why

• allow reproducible docker builds

[osterman]

Thanks @rfaircloth-splunk for the contributions! I am away this week, but will work with you to get this merged. We've received an uptick in interest in this project, so looks we should do some housekeeping.

[osterman]

@rfaircloth-splunk just checking in - I believe we're still waiting on some more updates from you.

[ryanfaircloth]

Yes you are, got caught up in something else, need to get this back to top of heap

[ryanfaircloth]

For some reason I could not update this PR making a new one

[ryanfaircloth]

Figured it out, opened up again

[ryanfaircloth]

Ping any other concerns not resolved?

[osterman]

Thanks @rfaircloth-splunk ! LGTM