What does it look like ?

RCS stored directory based modules with tasks in subdirectories. Make or shell script style module execution as part of each task dir + variable files containing settings for the install task. Json configuration files that define all necessary module params (ex:log, task selection, stop on error, initialization, build command per task, etc...) remote scheduling of module/task execution via per agent sysv ipc command queue serviced by a JSON-RPC microsvc which allows both serialized and non blocking task scheduling by queue priority.