A docker image of proftpd for RaspberryPi, based on resin/rpi-raspbian:stretch
You can provide your users list by mounting folder containing users files in /users with the format :
user password home_dir
The home_dir can be a mounted volume from the host. This directory must be readable and writable by user 1000, gid 1000.
Put your custom conf in /etc/proftpd/conf.d
The active mode of FTP require to publish the port 21 of the container.
docker run --name proftpd -d -p 21:21 -v $PWD/examples/users:/users tcoupin/rpi-proftpd
In this mode, the container must publish port 50000 to 50050 (see proftpd.conf). Since docker use NAT to publish port, you have to tell to proftpd your host ip (or your public ip). An example is in example/conf.d. Mount the conf.d at /etc/proftpd/conf.d (see custom conf section bellow).
docker run --name proftpd -d -p 21:21 -p 50000-50050:50000-50050 -v $PWD/examples/conf.d:/etc/proftpd/conf.d -v $PWD/examples/users:/users tcoupin/rpi-proftpd
Proftpd read his configuration in /etc/prodtpd. You can provide your own configuration in /proftpd to override the configuration.