22
Mar
2019

Distributed, lock-free, self-hosted health checks and status pages. #golang based #monitoring

Checkup is distributed, lock-free, self-hosted health checks and status pages, written in Go.

https://github.com/sourcegraph/checkup

It features an elegant, minimalistic CLI and an idiomatic Go library. They are completely interoperable and their configuration is beautifully symmetric.

Checkup was created by Matt Holt, author of the Caddy web server. It is maintained and sponsored by Sourcegraph. If you’d like to dive into the source, you can start here.

This tool is a work-in-progress. Please use liberally (with discretion) and report any bugs!

Intro

Checkup can be customized to check up on any of your sites or services at any time, from any infrastructure, using any storage provider of your choice (assuming an integration exists for your storage provider). The status page can be customized to your liking since you can do your checks however you want. The status page is also mobile-responsive.

Checkup currently supports these checkers:

  • HTTP
  • TCP (+TLS)
  • DNS
  • TLS

Checkup implements these storage providers:

  • Amazon S3
  • Local file system
  • GitHub
  • SQL (sqlite3 or PostgreSQL)

Checkup can even send notifications through your service of choice (if an integration exists).

How it Works

There are 3 components:

  1. Storage. You set up storage space for the results of the checks.
  2. Checks. You run checks on whatever endpoints you have as often as you want.
  3. Status Page. You host the status page. Caddy makes this super easy. The status page downloads recent check files from storage and renders the results client-side.

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