[atomic] Obtaining package list information from rpm-ostree

[Steve Poe]

I learned from one of the blogs in how to add packages to my CentOS Atomic 
environment using rpm-ostree pig-add <package_name> command. By guessing 
package names, I’ve been able to add what I needed. I realized I don’t know how 
to obtain a list of all available packages with rpm-ostree. How do I find out 
what packages I can actually install?

Thanks.

Steve