Download files with SFTP.
$ docker build -t sftp-sync https://github.com/keithchambers/sftp-sync.git
$ docker run \
-e 'HOST=192.168.1.2' \
-e 'USERNAME=keithchambers' \
-e 'PASSWORD=YuRP@sWd!' \
-e 'REMOTE_PATH=/users/keithchambers/web-logs' \
-e 'LOCAL_PATH=/web-logs' \
-v /Users/keithchambers/web-logs:/web-logs \
sftp-sync