How do I start a service after checkout?

[rpgoldman]

I am trying to write a workflow where I do the following:

1. Checkout my repository
2. Configure the workspace in preparation for a service to start
3. Start the service
4. Query the service to see if I am getting the right responses.

What I haven't figured out is how to checkout the repository and perform some actions before the service starts. The service is an attribute of the job and is set up before the steps of the job run. So how can I prepare the service for running based on the results of the checkout?

Very specifically, I need to run m4 (the C pre-processor) on some files in the repo, move them to a dedicated location, and then the service must bind mount them. I know how to do these actions, but I don't know how to make them occur before the service starts.

Thanks!