docker run -d -v /var/lib/docker/volumes/ftpuserdb/_data:/home/vsftpd -p 20:20 -p 21:21 -p 21100-21110:21100-21110 -e FTP_USER=bob -e FTP_PASS=12345 -e PASV_ADDRESS=<PUBLIC IP>  -e PASV_MIN_PORT=21100 -e PASV_MAX_PORT=21110 -e PASV_ADDRESS_ENABLE=YES -e PASV_ENABLE=YES --name ftp-server fauria/vsftpd

Chain DOCKER (2 references)
target     prot opt source               destination
ACCEPT     udp  --  anywhere             IP          udp dpt:openvpn
ACCEPT     tcp  --  anywhere             IP           tcp dpt:3000
ACCEPT     tcp  --  anywhere             IP           tcp dpt:21110
ACCEPT     tcp  --  anywhere             IP           tcp dpt:21109
ACCEPT     tcp  --  anywhere             IP           tcp dpt:21108
ACCEPT     tcp  --  anywhere             IP           tcp dpt:21107
ACCEPT     tcp  --  anywhere             IP           tcp dpt:21106
ACCEPT     tcp  --  anywhere             IP           tcp dpt:21105
ACCEPT     tcp  --  anywhere             IP           tcp dpt:21104
ACCEPT     tcp  --  anywhere             IP           tcp dpt:21103
ACCEPT     tcp  --  anywhere             IP           tcp dpt:21102
ACCEPT     tcp  --  anywhere             IP           tcp dpt:21101
ACCEPT     tcp  --  anywhere             IP           tcp dpt:21100