Rsync/Docker

rsyncd.conf man page: https://linux.die.net/man/5/rsyncd.conf

Default port for rsync is 873.

Link to rsync docker container files: https://git.charlesreid1.com/docker/d-rsync

The rsync docker container acts as a kind of void function: it modifies (updates) files on disk, based on the traffic on port 873, but it does not result in any traffic being sent out, so it "returns" nothing.

This is the line in the rsyncd.conf file that does that:

hosts allow = 127.0.0.1

When we run the rsync docker image, it needs to have access to the directory it is supposed to update in the host file system. Mount volumes when running the docker image with docker run -v flag:

$ docker run -v /host/dir:/container/dir

In our case, both host and container dir is /wifi.