This snap runs a service that listens for HTTP requests and triggers a safe system shutdown on the Built-in Computer of Husarion Panther and Lynx UGV.
Parameters
The snap provides the following configurable parameters (param name: default value):
config.user-computer-ip: 10.15.20.3 - IP of the User's Computerconfig.remote-host-ip: 10.15.20.2 - IP of the Built-in Computerconfig.port: 3003 - Port of the Built-in Computer where the server is runningconfig.shutdown-delay: 0 - Shutdown delay in secondsconfig.password: husarion - Shared HMAC secret known to both the User's Computer and the Built-in ComputerTo set parameters, use the snap set command, e.g.,
sudo snap set husarion-shutdown config.user-computer-ip="10.5.10.81" config.remote-host-ip="10.5.10.81" config.shutdown-delay=20 config.password="husarion2"
Example HTTP Request Script
Example of the script that uses the service to trigger the safe system shutdown
can be found here: /var/snap/husarion-shutdown/common/request_example.sh
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Snaps are applications packaged with all their dependencies to run on all popular Linux distributions from a single build. They update automatically and roll back gracefully.
Snaps are discoverable and installable from the Snap Store, an app store with an audience of millions.
Snap can be installed from the command line. Open the Konsole terminal and enter the following:
sudo apt update
sudo apt install snapd
To install husarion-shutdown, simply use the following command:
sudo snap install husarion-shutdown
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