Convert .osm.pbf and .poly files to environment variables

[zykinwases]

Replace .pbf and .poly filepaths with environment variables for wider usage.

[galewis2]

I'm not sure, why is this needed if the name of the file is specified as the source for volume mounts?

[zykinwases]

if you are using persistent volumes it is impossible to specify a single file, so you must use nested folder.
if you use /data as mount path for volume all other nested folders (for example /data/style) are removed and run.sh fails

[galewis2]

@zykinwases Can you show an MVP of what you mean?

[nielsole]

I guess zykinwases refers to using a persistent volume in Kubernetes. I guess an equivalent to the file-based docker -v should be solvable with subPath in the volumeMount.