bleonard252/alpine-ssh repository overview

Source: my gist⁠.

To use:

1. Pull using docker pull bleonard252/alpine-ssh
2. Create a container, i.e. docker run --name ssh --privileged --network=host -e SSHUSER=username bleonard252/alpine-ssh
3. Attach to it using Portainer's Attach to Container Shell feature, enter your password if necessary, and go!

Things you need to know:

• You can also use "exec" (with /bin/sh) and run ssh-keygen and ssh-copy-id username@localhost to access the SSH server by public key.
• Three environment variables exist: SSHUSER for the username (also, if you're daring, the password in the form of username:password), SSHHOST for the hostname (localhost by default), and SSHPORT (22 by default).
• The only environment variable you really need to change is SSHUSER, unless the device or port is different than the one alpine-ssh is being run on, then change those.
• --network=host is required so that localhost works correctly.
• This image is made for Portainer, but if you have a similar interface you can use that.
• This image is compiled for ARM Linux (specifically Raspbian), but if you build it for another platform, let me know and I'll list it here.