Haproxy¶

Collect metrics of Haproxy.

Configuration¶

Preconditions¶

• HAProxy 2.0
• HAProxy Enterprise 2.0r1
• HAProxy ALOHA 11.5

1. Haproxy Enable Metrics¶

Adjust the Haproxy configuration file and add the following module configurations:

frontend prometheus
  bind *:8405
  mode http
  http-request use-service prometheus-exporter if { path /metrics }
  no log
......

Expose metric information through prometheus-exporter with port 8405 and path/metrics.

Restart the Haproxy service. Obtain metrics information by accessing port 8405, as shown below:

# HELP haproxy_process_nbthread Number of started threads (global.nbthread)
# TYPE haproxy_process_nbthread gauge
haproxy_process_nbthread 8
# HELP haproxy_process_nbproc Number of started worker processes (historical, always 1)
# TYPE haproxy_process_nbproc gauge
haproxy_process_nbproc 1
# HELP haproxy_process_relative_process_id Relative worker process number (1)
# TYPE haproxy_process_relative_process_id gauge
haproxy_process_relative_process_id 1
# HELP haproxy_process_uptime_seconds How long ago this worker process was started (seconds)
# TYPE haproxy_process_uptime_seconds gauge
haproxy_process_uptime_seconds 1364
...

2. DataKit Collector Configuration¶

2.1 Install DataKit¶

2.2 Configuration Collector¶

Because Haproxy can expose metrics URL directly, it can be collected directly through prom collector.

Enter conf.d/prom in the DataKit installation directory and copy prom.conf.sample to haproxy.conf.

cp prom.conf.sample haproxy.conf

Adjust the content of haproxy.conf as follows:

  urls = ["http://localhost:8405/metrics"]

  source = "haproxy"

  ## Keep Exist Metric Name
  ## If the keep_exist_metric_name is true, keep the raw value for field names.
  keep_exist_metric_name = true

  interval = "10s"

Other configurations are adjusted as needed

, adjust parameter description:

• Urls: prometheus Metric address, where you fill in the metric URL exposed by the corresponding component
• Source: Collector alias, recommended to distinguish
• Interval: collection interval

3. Restart DataKit¶

Restart DataKit

Metric¶

Haproxy Metrics¶

For more metrics, refer to the official haproxy document