I wrote this to help me setup PostgreSQL instances with docker, to help me with building my customized replication-partition manager as a part of the API, instead of having PostgreSQL do it for me. This acts as a really great tool for setting up my test environment, by launching all the dockerized PostgreSQL instances.
This also implements a simple pipe wrapper to interact with (read and write) a running application's STDIN, STDOUT and STDERR without having to wait for the application to finish executing. Python provides a way to use pipes to launch processes, but does not provide us with an easy to use way to process them in separate threads.
This project might be generalized to help with any devOps pipelining tasks, and even extended it into a complete job scheduling system. As it includes a custom pipelining library built using subprocess.Popen.