Awesome

tmate server side

tmate-ssh-server is the server side part of tmate.io.

A docker image is provided: tmate/tmate-ssh-server

The following environment variables are used to configure the server:

SSH_KEYS_PATH (mandatory): The path where the ssh keys are located.
HAS_WEBSOCKET: set to 1 if the tmate-websocket server exists (for HTML5 clients).
USE_PROXY_PROTOCOL: set to 1 if the ssh server is behind a load balancer that uses the proxy protocol enabled. This is useful to get client real IPs.
SSH_HOSTNAME: configures the SSH hostname to advertise to tmate hosts.
SSH_PORT_LISTEN: port on which the SSH server should listen on.
SSH_PORT_ADVERTISE: configures the SSH port to advertise to tmate hosts. Defaults to SSH_PORT_LISTEN.

Note that you need to add the SYS_ADMIN capability to the container. This is needed to create nested containers (namespaces) to secure sessions.

MIT license.