balena-ssh

This is a basic balena project that runs dropbear on boot which allows for ssh access. It's currently running a python script, but you could run any language you like as long as there is a continous process running to keep the container open to outside connections, in this case we are running a flask server.

If your running a node.js project with balena and would like ssh access you should look here.

NOTE: This container enables SSH access as root with a PASSWORD stored in plain text - Do not use in production without modifications.

SSH into your device.

Add an environment variable called PASSWD with the value to set as root password.

Then run

$ ssh root@<YOUR-DEVICE'S-IP>

The code you just pushed is kept in the app directory.

$ cd /usr/src/app

At after pushing you may encounter and re-sshing back into the device you may encounter this error message as the host key changes when an update occurs on the device.

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!     @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
Someone could be eavesdropping on you right now (man-in-the-middle attack)!
It is also possible that a host key has just been changed.

To get around this remove the key.

$ ssh-keygen -R <YOUR-DEVICE'S-IP>

It will then work as expected

$ ssh root@<YOUR-DEVICE'S-IP>