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v0.2.0 · public · Published 4 months ago

README
Asset Definition
Release Notes
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Sensu Bonsai Asset
Go Test
goreleaser

Sensu Network Interface Checks

Table of Contents

Overview

The Sensu Network Interface Checks are Linux Sensu Metrics Check that provides baseline network metrics in prometheus format.

Output Metrics

Name Type Description
bytes_sent counter Bytes sent
bytes_sent_rate gauge Bytes sent per second
bytes_recv counter Bytes received
bytes_recv_rate gauge Bytes received per second
packets_sent counter Packets sent
packets_sent_rate gauge Packets sent per second
packets_recv counter Packets received
packets_recv_rate gauge Packets received per second
err_out counter Outbound errors
err_out_rate gauge Outbound errors per second
err_in counter Inbound errors
err_in_rate gauge Inbound errors per second
drop_out counter Outbound packets dropped
drop_out_rate gauge Outbound packets dropped per second
drop_in counter Inbound packets dropped
drop_in_rate gauge Inbound packets dropped per second

Rate Metrics

In order to obtain rate metrics the --state-file argument must be used. The state file holds previous values and millisecond accurate timestamp, which are used to calculate metric rate using a simple time difference between current values and previously recorded values in the state file. By default rate metrics are only calculated if the stored values in the selected state file are less than 60 seconds old. You can optionally set the maximum allowed time interval using --max-rate-interval if the 60 second default isn't suitable.

If the state file does not exist or if the state is too stale, the rate metrics will not be produced.

Usage examples

Help output

Network Interface Checks

Usage:
  network-interface-checks [flags]
  network-interface-checks [command]

Available Commands:
  completion  generate the autocompletion script for the specified shell
  help        Help about any command
  version     Print the version number of this plugin

Flags:
  -x, --exclude-interfaces strings   Comma-delimited string of interface names to exclude (default [lo])
  -h, --help                         help for network-interface-checks
  -i, --include-interfaces strings   Comma-delimited string of interface names to include
  -r, --max-rate-interval int        Maximum number of seconds since last measurement that triggers a rate calculation. 0 for no maximum. (default 60)
  -f, --state-file string            State file used for rate calculation. If empty no rate is calculated.
  -s, --sum                          Add additional measurement per metric w/ "interface=all" tag
      --sumologic-compat             Add Sumo Logic compatible metrics with w/ "host_net" family

Use "network-interface-checks [command] --help" for more information about a command.

Environment variables

Argument Environment Variable
--sum NETWORK_INTERFACE_CHECKS_SUM
--include-interfaces NETWORK_INTERFACE_CHECKS_INCLUDE_INTERFACES
--exclude-interfaces NETWORK_INTERFACE_CHECKS_EXCLUDE_INTERFACES
--max-rate-interval NETWORK_INTERFACE_CHECKS_MAX_RATE_INTERVAL
--state-file NETWORK_INTERFACE_CHECKS_STATE_FILE
--sumologic-compat NETWORK_INTERFACE_CHECKS_SUMOLOGIC_COMPAT

Configuration

Asset registration

Sensu Assets are the best way to make use of this plugin. If you're not using an asset, please
consider doing so! If you're using sensuctl 5.13 with Sensu Backend 5.13 or later, you can use the
following command to add the asset:

sensuctl asset add sensu/network-interface-checks

If you're using an earlier version of sensuctl, you can find the asset on the Bonsai Asset Index.

Check definition

---
type: CheckConfig
api_version: core/v2
metadata:
  name: network-interface-checks
  namespace: default
spec:
  command: network-interface-checks
  subscriptions:
  - system
  runtime_assets:
  - sensu/network-interface-checks

Installation from source

The preferred way of installing and deploying this plugin is to use it as an Asset. If you would
like to compile and install the plugin from source or contribute to it, download the latest version
or create an executable script from this source.

From the local path of the network-interface-checks repository:

go build

Additional notes

This plugin is only supported on Linux.

Contributing

For more information about contributing to this plugin, see Contributing.

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