Docker sshpass-oathtool

Alpine based image provides ssh, oathtool (for generating TOTP tokens) and sshpass (a noninteractive ssh password provider) for automated ssh logins using time-based one-time password authentication.

Environment variables

Var	Description
OTP_SECRET Required	TOTP seecret (SHA)
OTP_PREFIX Optional	Prefix for SSHPASS
OTP_SUFFIX Optional	Suffix for SSHPASS
SSHPASS Generated	Exposed at entrypoint. To be used with sshpass -e
NTP_SERVER Required	For backward compatibility default is set to time.google.com. This will be removed in a future release
NTP_MAXOFFSET Optional	Exit if time offset is > NTP_MAXOFFSET (ms). Set to Zero to disable ntp time comparison. Default: 20000

Usage

docker run \
  --rm \
  -e OTP_SECRET="" \
  jb5r/sshpass-oathtool:latest \
  sshpass -e ssh user@host <command>