Well-written ksh/bash is extremely light-weight, flexible, concise and easy to maintain. Changing shell or OS would be the headache, but easily outweighted by gains if used for the right jobs.
Unfortunately, maintaining it requires somebody who is familiar with ksh or bash, and they are tools with Byzantine syntax by modern aesthetics. They're also more firepower than needed for the problem domain of building and maintaining deployments---they have features one doesn't need and require library support for key features in the deployment problem domain.
You can code a deployment solution in c++ also, but it's not recommended.
You can code a deployment solution in c++ also, but it's not recommended.