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Documentation Grafana Agent Flow mode Reference Components prometheus.exporter.blackbox

prometheus.exporter.blackbox

The prometheus.exporter.blackbox component embeds blackbox_exporter. blackbox_exporter lets you collect blackbox metrics (probes) and expose them as Prometheus metrics.

Usage

river Copy

prometheus.exporter.blackbox "LABEL" {
  config_file = "PATH_BLACKBOX_CONFIG_FILE"
  
  target "TARGET_NAME" {
    address = "TARGET_ADDRESS" 
  }
  
  ...
}

Arguments

The following arguments can be used to configure the exporter’s behavior. Omitted fields take their default values.

The config_file argument points to a YAML file defining which blackbox_exporter modules to use. The config argument must be a YAML document as string defining which blackbox_exporter modules to use. config is typically loaded by using the exports of another component. For example,

• local.file.LABEL.content
• remote.http.LABEL.content
• remote.s3.LABEL.content

See blackbox_exporter for details on how to generate a config file.

Blocks

The following blocks are supported inside the definition of prometheus.exporter.blackbox to configure collector-specific options:

target block

The target block defines an individual blackbox target. The target block may be specified multiple times to define multiple targets.

Exported fields

The following fields are exported and can be referenced by other components.

For example, the targets can either be passed to a discovery.relabel component to rewrite the targets’ label sets, or to a prometheus.scrape component that collects the exposed metrics.

The exported targets will use the configured in-memory traffic address specified by the run command.

Component health

prometheus.exporter.blackbox is only reported as unhealthy if given an invalid configuration. In those cases, exported fields retain their last healthy values.

Debug information

prometheus.exporter.blackbox does not expose any component-specific debug information.

Debug metrics

prometheus.exporter.blackbox does not expose any component-specific debug metrics.

Example

This example uses a prometheus.scrape component to collect metrics from prometheus.exporter.blackbox:

river Copy

prometheus.exporter.blackbox "example" { 
	config_file = "blackbox_modules.yml"
	
	target "example" {
		address = "http://example.com"
		module  = "http_2xx"
	}
	
	target "grafana" {
		address = "http://grafana.com"
		module  = "http_2xx"
	}	
}

// Configure a prometheus.scrape component to collect Blackbox metrics.
prometheus.scrape "demo" {
  targets    = prometheus.exporter.blackbox.example.targets
  forward_to = [ /* ... */ ]
}

This example is the same above with using an embedded configuration:

river Copy

prometheus.exporter.blackbox "example" { 
	config = "{ modules: { http_2xx: { prober: http, timeout: 5s } } }"
	
	target "example" {
		address = "http://example.com"
		module  = "http_2xx"
	}
	
	target "grafana" {
		address = "http://grafana.com"
		module  = "http_2xx"
	}	
}

// Configure a prometheus.scrape component to collect Blackbox metrics.
prometheus.scrape "demo" {
  targets    = prometheus.exporter.blackbox.example.targets
  forward_to = [ /* ... */ ]
}