On a test system for a customer I wanted to bring up a newer PostgreSQL version on CentOS 7 (same for RHEL 7). Software Collections (also for RedHat) gives you a neat distribution method that is not very invasive into your existing distribution. So you can install a PostgreSQL 9.4 under RHEL 7 without replacing any of the existing packages. This is a bit tricky in terms of paths, but just works.
I found a relatively simple way to install, configure and run such a SCL with Puppet, with just using the existing PostgreSQL module.
https://gist.github.com/lazyfrosch/1926b17d1d605bfb819e899ef6bd4b63
Have fun trying it out and let me know what you think.
Markus Frosch
Principal Consultant
