Sometimes it's useful to ssh into a posbox to quickly troubleshoot an
issue. Talking customers through port forwarding is very difficult
however. We use ngrok to solve this issue.
This implements an interface that allows a user to enter an ngrok
authentication token. After this, ngrok can be started and we should be
able to remotely connect.
Note that ngrok does NOT run by default on the posbox. It can only be
started manually by the user.
This allows people to connect the posbox to networks using a wireless
network adapter.
When plugging in a USB Wi-Fi adapter and no network cable, the posbox
will boot and host its own Access Point called "Posbox". Users can
connect their device to this network and can then connect to the posbox
the usual way.
An interface for has been provided that also allows users to instruct
the posbox to connect to a different Wi-Fi network. This is useful when
the client is not running Odoo locally.
It is also possible to make this configuration persistent. With a
persistent Wi-Fi network configuration, the posbox will always try to
connect to the specified network after a reboot.
Attempts have been made to make the Wi-Fi connection as robust as
possible. Upon connection loss, the posbox will automatically attempt to
reconnect.
- don't add comments in posbox ld.so.preload, it causes the second line to be
interpreted as a library.
- allow image creation in headless environment. This checks whether or not X is
running and runs qemu-system-arm with or without graphics.
Instead of continuing to build upon the old images, these scripts
implement a reproducable way to generate new posbox images. The
generated images will be based on the latest stable Raspbian
release. The image will be created with the help of qemu-system-arm,
which will boot up the image and execute a script that will set up the
posbox image.
This way everything necessary to set up a posbox is readable in the
scripts and accompanying files, instead of being hidden in an image.
Joren Van Onder