sensu / handler-plugin-template

MIT License
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{{- / Ignore this text, until templating is ran via sensu-plugin-tool the below badge links wiill not render / -}}

[Sensu Bonsai Asset](https://bonsai.sensu.io/assets/{{ .GithubUser }}/{{ .GithubProject }}) ![goreleaser](https://github.com/{{ .GithubUser }}/{{ .GithubProject }}/workflows/goreleaser/badge.svg) [![Go Test](https://github.com/{{ .GithubUser }}/{{ .GithubProject }}/workflows/Go%20Test/badge.svg)](https://github.com/{{ .GithubUser }}/{{ .GithubProject }}/actions?query=workflow%3A%22Go+Test%22) [![goreleaser](https://github.com/{{ .GithubUser }}/{{ .GithubProject }}/workflows/goreleaser/badge.svg)](https://github.com/{{ .GithubUser }}/{{ .GithubProject }}/actions?query=workflow%3Agoreleaser)

Handler Plugin Template

Overview

handler-plugin-template is a template repository which wraps the Sensu Plugin SDK. To use this project as a template, click the "Use this template" button from the main project page. Once the repository is created from this template, you can use the Sensu Plugin Tool to populate the templated fields with the proper values.

Functionality

After successfully creating a project from this template, update the Config struct with any configuration options for the plugin, map those values as plugin options in the variable options, and customize the checkArgs and executeHandler functions in main.go.

When writing or updating a plugin's README from this template, review the Sensu Community plugin README style guide for content suggestions and guidance. Remove everything prior to # {{ .Name }} from the generated README file, and add additional context about the plugin per the style guide.

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!


{{ .Name }}

Table of Contents

Overview

The {{ .Name }} is a Sensu Handler that ...

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 {{ .GithubUser }}/{{ .GithubProject }}

If you're using an earlier version of sensuctl, you can find the asset on the [Bonsai Asset Index][https://bonsai.sensu.io/assets/{{ .GithubUser }}/{{ .GithubProject }}].

Handler definition

---
type: Handler
api_version: core/v2
metadata:
  name: {{ .GithubProject }}
  namespace: default
spec:
  command: {{ .GithubProject }} --example example_arg
  type: pipe
  runtime_assets:
  - {{ .GithubUser}}/{{ .GithubProject }}

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/{{ .GithubProject }}/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/{{ .GithubProject }}/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 {{ .GithubProject }} repository:

go build

Additional notes

Contributing

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