Health Check Endpoints

health-check-endpoints

Implement comprehensive health check endpoints for liveness, readiness, and dependency monitoring. Use when deploying to Kubernetes, implementing load balancer health checks, or monitoring service availability.

aj-geddes/useful-ai-prompts·350installs351starsDevOps & CI/CD

SKILL.md

Full skill instructions

Overview

Implement health check endpoints to monitor service health, dependencies, and readiness for traffic.

When to Use

Kubernetes liveness and readiness probes
Load balancer health checks
Service discovery and registration
Monitoring and alerting systems
Circuit breaker decisions
Auto-scaling triggers
Deployment verification

Quick Start

Minimal working example:

import express from "express";
import { Pool } from "pg";
import Redis from "ioredis";

interface HealthStatus {
  status: "healthy" | "degraded" | "unhealthy";
  timestamp: string;
  uptime: number;
  checks: Record<string, CheckResult>;
  version?: string;
  environment?: string;
}

interface CheckResult {
  status: "pass" | "fail" | "warn";
  time: number;
  output?: string;
  error?: string;
}

class HealthCheckService {
  private startTime = Date.now();
  private version = process.env.APP_VERSION || "1.0.0";
  private environment = process.env.NODE_ENV || "development";

// ... (see reference guides for full implementation)

Reference Guides

Detailed implementations in the references/ directory:

Guide	Contents
Express.js Health Checks	Express.js Health Checks
Spring Boot Actuator-Style (Java)	Spring Boot Actuator-Style (Java)
Python Flask Health Checks	Python Flask Health Checks

Best Practices

✅ DO

Implement separate liveness and readiness probes
Keep liveness probes lightweight
Check critical dependencies in readiness
Return appropriate HTTP status codes
Include response time metrics
Set reasonable timeouts
Cache health check results briefly
Include version and environment info
Monitor health check failures

❌ DON'T

Make liveness probes check dependencies
Return 200 for failed health checks
Take too long to respond
Skip important dependency checks
Expose sensitive information
Ignore health check failures

Install skill

Copy and run in your terminal

npx -y skills add https://github.com/aj-geddes/useful-ai-prompts --skill health-check-endpoints

View on GitHub

health-check-endpoints

More DevOps & CI/CD skills

View all

DevOps & CI/CD

google-agents-cli-scaffold

Project scaffolding, deployment configuration, and CI/CD setup for Google ADK agents.

6K 472.6K

View

DevOps & CI/CD

google-agents-cli-observability

Set up tracing, logging, and monitoring for deployed ADK agents across Cloud Trace, BigQuery, and third-party platforms.

6K 472.6K

View

DevOps & CI/CD

azure-enterprise-infra-planner

Enterprise Azure infrastructure architect generating Bicep or Terraform from workload descriptions.

1.5K 454.3K

View

DevOps & CI/CD

azure-kubernetes

Plan and configure production-ready Azure Kubernetes Service clusters with Day-0 and Day-1 best practices.

1.5K 447.1K

View

DevOps & CI/CD

industrial-brutalist-ui

Raw mechanical interfaces fusing Swiss typographic print with military terminal aesthetics. Rigid grids, extreme type scale contrast, utilitarian color, analog degradation effects. For data-heavy dashboards, portfolios, or editorial sites that need to feel like declassified blueprints.

92.7K 354.9K

View

DevOps & CI/CD

just-scrape

Web search, scraping, extraction, crawling, and monitoring via ScrapeGraph AI CLI.

69 245K

View

DevOps & CI/CD

firebase-hosting-basics

Skill for working with Firebase Hosting (Classic). Use this when you want to deploy static web apps, Single Page Apps (SPAs), or simple microservices. Do NOT use for Firebase App Hosting.

462 159.7K

View

DevOps & CI/CD

firebase-app-hosting-basics

Deploy and manage web apps with Firebase App Hosting. Use this skill when deploying Next.js/Angular apps with backends.

462 159.1K

View

DevOps & CI/CD

deploy-to-vercel

Deploy applications and websites to Vercel. Use when the user requests deployment actions like "deploy my app", "deploy and give me the link", "push this live", or "create a preview deployment".

31.9K 146.6K

View

DevOps & CI/CD

programmatic-seo

Build SEO-optimized pages at scale using templates, data, and proven playbook patterns.

53.3K 140.1K

View

DevOps & CI/CD

convex-create-component

Design and build isolated, reusable Convex backend components with clear boundaries and app-facing wrappers.

63 123.5K

View

DevOps & CI/CD

vercel-cli-with-tokens

Deploy and manage projects on Vercel using token-based authentication. Use when working with Vercel CLI using access tokens rather than interactive login — e.g. "deploy to vercel", "set up vercel", "add environment variables to vercel".

31.9K 116.1K

View