Anyway I was looking for the alternative how to monitor the RPi without running it (Grafana, Prometheus) myself.
The Grafana Labs offers Grafana Cloud in free version which is powerful enough to get the monitoring data form your RPi including logs.
Here are the steps how to configure your Raspberry Pi to use Grafana Cloud:
Grafana Cloud
- Go to Grafana Cloud and create new account.
- Select your "Team URL" and region:
- Then select the "Linux Server" and click "Install integration"
- I left the "Debian - based" as a default and changed the "Architecture" to "Armv7"
- Copy the content form the Grafana Agent field and paste it to your shell connected to RPi
- Then continue by "Test integration and finish installation":
After these steps the Grafana Agent should be configured and should start sending data to Grafana Cloud.