Dockerized ssh server

With this image you can use the port forward features of ssh. It supports PubKey auth only.

Features

1. It can run with any user id, so you can use it in OpenShift too
2. You can specify RSA keys of the server (env or mount), so it won't overhelm your known_hosts
3. Post process sshd_config with a sed script
4. If RSA keys not specified they'll be regenerated at startup, not at build time

How to use

Variables

Variables are used only if the related files are not mounted.

Variable	Default	Description
RSA_PUBKEY	Generate new key if empty and not mounted	RSA pubkey of ssh server
RSA_PRIVKEY	Generate new key if empty and not mounted	RSA private key of ssh server
AUTHORIZED_KEYS	Empty	Allowed pubkeys. Separate multiple pubkeys with newline
SSH_USERNAME	'user'	User name of client
POSTPROCESS_CONFIG_SCRIPT	Empty	You can specify a sed script to postprocess sshd_config

Mounts

File	Mode	Description
/home/user/server/sshd_config	644	You can specify the entire sshd config. It won't be modified by this image except by POSTPROCESS_CONFIG_SCRIPT
/home/user/server/ssh_host_rsa_key	600	Private RSA key of the server. The default config expects 2048 bit
/home/user/server/ssh_host_rsa_key.pub	644	Public RSA key of the server
/home/user/.ssh/authorized_keys	600	Allowed public keys