arecibo
arecibo
npm i arecibo
arecibo

arecibo

Fastify ping responder for Kubernetes Liveness and Readiness Probes

by ducktors

2.2.0 (see all)License:MITTypeScript:Built-In
npm i arecibo
Readme

arecibo-logo-v1

NPM version NPM downloads styled with prettier Known Vulnerabilities

Installation

Note: Arecibo version 1 supports version 2 of Fastify. Arecibo version 2 supports version 3 of Fastify.

Arecibo versionFastify versionBranch
v2.1.1Fastify 3 & 4master
v1.1.0Fastify 2deprecated
npm i arecibo

Usage in Node.js

const arecibo = require('arecibo')
// or import arecibo from 'arecibo'
// or import * as arecibo from 'arecibo'

fastify.register(arecibo, {
  message: 'Put here your custom message', // optional, default to original arecibo message
  readinessURL: '/put/here/your/custom/url', // optional, deafult to /arecibo/readiness
  livenessURL: '/put/here/your/custom/url', // optional, deafult to /arecibo/liveness
  readinessCallback: (req, reply) => reply.type('text/html').send('Put here your custom message'), // optional
  livenessCallback: (req, reply) => reply.type('text/html').send('Put here your custom message'), // optional
  logLevel: 'error', // optional, defaults to 'info'; can be trace, debug, info, warn, error, and fatal
})

Note for typescript users

If you set "esModuleInterop": true you must import this module using import arecibo from 'arecibo'.

On Kubernetes add deployment manifest

...

livenessProbe:
  httpGet:
    path: /arecibo/liveness
    port: 80
    httpHeaders:
      - name: X-Custom-Header
        value: Awesome
  initialDelaySeconds: 15
  timeoutSeconds: 1
  periodSeconds: 15
readinessProbe:
  httpGet:
    path: /arecibo/readiness
    port: 80
    httpHeaders:
      - name: X-Custom-Header
        value: Awesome
  initialDelaySeconds: 5
  timeoutSeconds: 1
  periodSeconds: 15

...

How to commit

This repo uses Semantic Release with Conventional Commits. Releases are automatically created based on the type of commit message: feat for minor and fix for patch.

feat: new feature ---> 1.x.0
fix: fix a bug ---> 1.0.x

Reference

Fun fact: where does the name come from?

The name is inspired by the Arecibo message, a 1974 interstellar radio message carrying basic information about humanity and Earth sent to globular star cluster M13 in the hope that extraterrestrial intelligence might receive and decipher it. The message was broadcast into space a single time via frequency modulated radio waves at a ceremony to mark the remodelling of the Arecibo radio telescope in Puerto Rico on 16 November 1974.

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