Sends simulated sensor data (temperature, humidity, air quality, lux) to the admission-control proxy. Each request is signed with the device's hardware identity key (proof of possession); the proxy accepts data only while the device is commissioned and stops when it is revoked.
Configuration
Set the proxy URL before the service can run:
snap set iot-telemetry proxy-url=http://<proxy-ip>:8082
Optionally adjust the send interval (seconds, default 10):
snap set iot-telemetry send-interval=10
Device identity
The device serial and hardware private key are provided at runtime by the gadget snap through the "device-identity" content interface, mounted at $SNAP/identity. The gadget must expose a matching slot and the connection must be declared in the model assertion:
connections: - plug: iot-telemetry:device-identity slot: pi:device-identity
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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.
On Arch Linux, snap can be installed from the Arch User Repository (AUR). The manual build process is the Arch-supported install method for AUR packages, and you’ll need the prerequisites installed before you can install any AUR package. You can then install snap with the following:
git clone https://aur.archlinux.org/snapd.git
cd snapd
makepkg -si
Once installed, the systemd unit that manages the main snap communication socket needs to be enabled:
sudo systemctl enable --now snapd.socket
If AppArmor is enabled in your system, enable the service which loads AppArmor profiles for snaps:
sudo systemctl enable --now snapd.apparmor.service
To enable classic snap support, enter the following to create a symbolic link between /var/lib/snapd/snap and /snap:
sudo ln -s /var/lib/snapd/snap /snap
Either log out and back in again, or restart your system, to ensure snap’s paths are updated correctly.
To install iot-telemetry, simply use the following command:
sudo snap install iot-telemetry
Browse and find snaps from the convenience of your desktop using the snap store snap.
Interested to find out more about snaps? Want to publish your own application? Visit snapcraft.io now.