Prometheus Exporter

The prometheus exporter allows you to take metrics from Fluent Bit and expose them such that a Prometheus instance can scrape them.
Important Note: The prometheus exporter only works with metric plugins, such as Node Exporter Metrics
Key
Description
Default
host
This is address Fluent Bit will bind to when hosting prometheus metrics. Note: listen parameter is deprecated from v1.9.0.
0.0.0.0
port
This is the port Fluent Bit will bind to when hosting prometheus metrics
2021
add_label
This allows you to add custom labels to all metrics exposed through the prometheus exporter. You may have multiple of these fields
​
Getting Started
The Prometheus exporter only works with metrics captured from metric plugins. In the following example, host metrics are captured by the node exporter metrics plugin and then are routed to prometheus exporter. Within the output plugin two labels are added app="fluent-bit"and color="blue"
1
# Node Exporter Metrics + Prometheus Exporter
2
# -------------------------------------------
3
# The following example collect host metrics on Linux and expose
4
# them through a Prometheus HTTP end-point.
5
#
6
# After starting the service try it with:
7
#
8
# $ curl http://127.0.0.1:2021/metrics
9
#
10
[SERVICE]
11
    flush           1
12
    log_level       info
13
​
14
[INPUT]
15
    name            node_exporter_metrics
16
    tag             node_metrics
17
    scrape_interval 2
18
​
19
[OUTPUT]
20
    name            prometheus_exporter
21
    match           node_metrics
22
    host            0.0.0.0
23
    port            2021
24
    # add user-defined labels
25
    add_label       app fluent-bit
26
    add_label       color blue
Copied!

Data Pipeline - Previous

Outputs

Prometheus Remote Write

Last modified 1mo ago

Export as PDF

Copy link

Contents

Getting Started