Setting the provisioningDir to an absolute path in for the image goal will result in the absolute path being used. Docker only allows for relative paths.

The <src> path must be inside the context of the build; you cannot COPY ../something /something, because the first step of a docker build is to send the context directory (and subdirectories) to the docker daemon.

https://docs.docker.com/engine/reference/builder/#copy

If an absolute path is found, the relative path should be used here.