Understanding Bind Mounts

Docker containers are isolated from your computer, which makes it difficult for them to process data ON your computer!
A bind mount solves this problem by providing Docker access to a directory on your computer (i.e., the "outside" or host) as if it were in the container (i.e., the "inside" or guest).
The -v bind mount flag is quite common. After the -v flag, you must specify the bind using the correct order: outside:inside.
outside = the absolute path to the directory on your computer (the host).
- "${PWD}" can be that absolute path if you run the Docker command from the directory you want to mount.
inside = the absolute path to some mount point inside the container (the guest).
- Because it is an absolute path, the path must start with /.
- For BIDS, the inside mount points are usually something like /data and /out.
- Try to stick to the examples provided with the BIDS app (but, if you make up a name for the inside mount, that usually works fine with the -v flag).

Docker 7 (10 pts): bind mounts