Debian
The first step is to add our server GPG key to your keyring, on that way you can get our signed packages:
Debian 10 (Buster)
Debian 9 (Stretch)
Now let your system update the apt database:
Now the following step is to instruct systemd to enable the service:
The default configuration of td-agent-bit is collecting metrics of CPU usage and sending the records to the standard output, you can see the outgoing data in your /var/log/syslog file.