Mounting NAS and Connecting to Docker Container

Hello friends,

I am running a Nano PI R4S with Openwrt on it.
I have successfully installed Plex onto Docker and can access it without any issues via the url.
The problem comes from me trying to connect Plex to my network share where my media content is stored.

My NAS is static IP'd at and I can access the NAS via SMB on my PC at //NAS/nas

My question is, how do I:

  1. Mount my NAS into OpenWRT so that I can cd into it.
  2. Make that mount point visible to the Docker container where Plex resides

I'm comfortable around the command line, but I'm way out of my element. What's the best way of tackling this?