otel-sensu-handler-plugin

README

otel-sensu-handler-plugin

Overview

Sensu handler plugin that emits OpenTelemetry metrics. Experimental/work-in-progress.

Usage Examples

  # run as as an HTTP server that accepts JSON (default)
  $ export LS_ACCESS_TOKEN=<your_token>
  $ ./otel-sensu-handler-plugin
  $ curl --data '@test-event.json' localhost:55788

  # run as a sensu backend handler plugin
  $ LS_ACCESS_TOKEN=<your_token> ENABLE_SENSU_HANDLER=1 ./otel-sensu-handler-plugin

Releases with Github Actions

To release a version of your project, simply tag the target sha with a semver release without a v prefix (ex. 1.0.0). This will trigger the GitHub action workflow to build and release the plugin with goreleaser. Register the asset with Bonsai to share it with the community!

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otel-sensu-handler-plugin

Table of Contents

• Overview
• Files
• Usage examples
• Configuration
  • Asset registration
  • Handler definition
  • Annotations
• Installation from source
• Additional notes
• Contributing

Overview

The otel-sensu-handler-plugin is a Sensu Handler that emits OpenTelemety metrics.

Files

Usage examples

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 smithclay/otel-sensu-handler-plugin

If you're using an earlier version of sensuctl, you can find the asset on the [Bonsai Asset Index][https://bonsai.sensu.io/assets/smithclay/otel-sensu-handler-plugin].

Handler definition

---
type: Handler
api_version: core/v2
metadata:
  name: otel-sensu-handler-plugin
  namespace: default
spec:
  command: otel-sensu-handler-plugin
  type: pipe
  runtime_assets:
  - smithclay/otel-sensu-handler-plugin

Proxy Support

This handler supports the use of the environment variables HTTP_PROXY, HTTPS_PROXY, and NO_PROXY (or the lowercase versions thereof). HTTPS_PROXY takes precedence over HTTP_PROXY for https requests. The environment values may be either a complete URL or a "host[:port]", in which case the "http" scheme is assumed.

Annotations

All arguments for this handler are tunable on a per entity or check basis based on annotations. The annotations keyspace for this handler is sensu.io/plugins/otel-sensu-handler-plugin/config.

Examples

To change the example argument for a particular check, for that checks's metadata add the following:

type: CheckConfig
api_version: core/v2
metadata:
  annotations:
    sensu.io/plugins/otel-sensu-handler-plugin/config/example-argument: "Example change"
[...]

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 otel-sensu-handler-plugin repository:

go build

Additional notes

Contributing

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