Fluent Bit is distributed as td-agent-bit package and is available for the latest (and old) stable Debian systems: Buster, Stretch and Jessie. This stable Fluent Bit distribution package is maintained by Treasure Data, Inc.
The first step is to add our server GPG key to your keyring, on that way you can get our signed packages:
$ wget -qO - https://packages.fluentbit.io/fluentbit.key | sudo apt-key add -
On Debian, you need to add our APT server entry to your sources lists, please add the following content at bottom of your /etc/apt/sources.list file:
deb https://packages.fluentbit.io/debian/buster buster main
deb https://packages.fluentbit.io/debian/stretch stretch main
deb https://packages.fluentbit.io/debian/jessie jessie main
Now let your system update the apt database:
$ sudo apt-get update
Using the following apt-get command you are able now to install the latest td-agent-bit:
$ sudo apt-get install td-agent-bit
Now the following step is to instruct systemd to enable the service:
$ sudo service td-agent-bit start
If you do a status check, you should see a similar output like this:
sudo service td-agent-bit status● td-agent-bit.service - TD Agent BitLoaded: loaded (/lib/systemd/system/td-agent-bit.service; disabled; vendor preset: enabled)Active: active (running) since mié 2016-07-06 16:58:25 CST; 2h 45min agoMain PID: 6739 (td-agent-bit)Tasks: 1Memory: 656.0KCPU: 1.393sCGroup: /system.slice/td-agent-bit.service└─6739 /opt/td-agent-bit/bin/td-agent-bit -c /etc/td-agent-bit/td-agent-bit.conf...
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.