Fluent Bit is a Data Forwarder for Linux, Embedded Linux, OSX and BSD family operating systems. It's part of the Fluentd Ecosystem. Fluent Bit allows collection of information from different sources, buffering and dispatching them to different outputs such as Fluentd, Elasticsearch, Nats or any HTTP end-point within others. It's fully supported on x86_64, x86 and ARM architectures.
For more details about it capabilities and general features please visit the official documentation:
$ cd build
$ cmake ..
$ make
$ bin/fluent-bit -i cpu -o stdout
Fluent Bit support the following features through plugins:
| name | option | description |
|---|---|---|
| CPU | cpu | gather CPU usage between snapshots of one second. It support multiple cores |
| Disk | disk | usage of block device |
| Dummy | dummy | generates dummy event |
| Exec | exec | executes external program and collects event logs |
| Forward | forward | Fluentd forward protocol |
| Memory | mem | usage of system memory |
| MQTT | mqtt | start a MQTT server and receive publish messages |
| Netif | netif | usage of network interface |
| Kernel Ring Buffer | kmsg | read Linux Kernel messages, same behavior as the dmesg command line program |
| Syslog | syslog | read messages from a syslog daemon |
| Systemd/Journald | systemd | read messages from journald, part of the systemd suite |
| Serial Port | serial | read from serial port |
| Standard Input | stdin | read from the standard input |
| Head | head | read first part of files |
| Health | health | check health of TCP services |
| Process | proc | check health of Process |
| Random | random | generate random numbers |
| Tail | tail | tail log files |
| TCP | tcp | listen for raw JSON map messages over TCP |
| name | option | description |
|---|---|---|
| Record Modifier | record_modifier | Append/Remove key-value pair |
| Grep | grep | Match or exclude specific records by patterns |
| Nest | nest | Nest specific records by patterns |
| Kubernetes | kubernetes | Enrich logs with Kubernetes Metadata |
| Stdout | stdout | Print records to the standard output interface |
| Parser | parser | Parse records |
| name | option | description |
|---|---|---|
| Counter | counter | count records |
| Elasticsearch | es | flush records to a Elasticsearch server |
| File | file | flush records to a file |
| FlowCounter | flowcounter | count records and its size |
| Forward | forward | flush records to a Fluentd service. On the Fluentd side, it requires an in_forward. |
| NATS | nats | flush records to a NATS server |
| HTTP | http | flush records to a HTTP end point |
| InfluxDB | influxdb | flush records to InfluxDB time series database |
| Plot | plot | generate a file for gnuplot |
| Standard Output | stdout | prints the records to the standard output stream |
| Treasure Data | td | flush records to Treasure Data service (cloud analytics) |
The official documentation of Fluent Bit can be found in the following site:
https://fluentbit.io/documentation/
In order to contribute to the project please refer to the CONTRIBUTING guidelines.
Feel free to join us on our Slack channel, Mailing List or IRC:
- Slack: https://slack.fluentd.org (#fluent-bit channel)
- Mailing List: https://groups.google.com/forum/#!forum/fluent-bit
- IRC: irc.freenode.net #fluent-bit
- Twitter: https://twitter.com/fluentbit
This program is under the terms of the Apache License v2.0.
Fluent Bit is made and sponsored by Treasure Data among other contributors.