Operations and Deployment

CI/CD Reusable Workflow Pattern: DRY Practices for Monorepo Multi-Application Deployment

Based on the real-world CI/CD refactoring experience of the JoyMini Monorepo, this article provides an in-depth analysis of how to eliminate redundant code in multi-application deployment pipelines within GitHub Actions and GitLab CI, achieving "define once, reuse multiple times."

S3 Browser Direct Upload CORS Pitfall Record: Complete Debugging Process from "Network Error" to Dual-Cloud Upload

Based on practical experience with the JoyMini dual-cloud storage architecture, this article fully documents the debugging process from "Featured image upload failed: network error" to identifying the missing CORS configuration on the S3 bucket, including analysis of the browser preflight mechanism, CLI instant fix, CDK persistent configuration, and key differences in CORS behavior between R2 and S3.

S3→R2 Cross-Cloud Disaster Recovery Sync Deep Architecture: A Complete Practice from Real-time Events to Incremental Synchronization

Based on JoyMini's real project experience, this article provides an in-depth analysis of the complete architectural design of an S3 to Cloudflare R2 cross-cloud disaster recovery synchronization system. It covers SQS real-time event-driven pipelines, Lambda concurrent streaming optimization, ETag incremental detection, DLQ+SNS failure notification mechanisms, and AWS CDK Infrastructure as Code best practices.

Cloudflare Tunnel Practical Guide: Building Public Access for Your Development Environment from Scratch

How can a locally developed service be made publicly accessible? This article is based on practical project experience, starting from common scenario pain points, and guides you step-by-step in building a secure, free, and stable solution for public access to your development environment using Cloudflare Tunnel.

VPS Server Initialization and Security Hardening – From Bare Metal to Production-Ready One-Click Script Practice

Based on a 233-line production-grade Shell script server-init.sh, this article details the 8-step initialization process for an Ubuntu 22.04 VPS: system update, Swap configuration, Docker installation, UFW firewall, Fail2Ban brute-force protection, Certbot certificate tool, coturn TURN server, and other core designs.

SSL Certificate Full Automation — Let's Encrypt Initial Application and Scheduled Renewal Shell Script Practice

Based on two production-grade scripts, init-cert.sh and renew-cert.sh, this article explains core designs including DNS verification, certbot standalone mode certificate application, automatic renewal checks, and graceful Nginx stop/start. It includes complete cron automatic renewal configuration.

SSG / SSR / ISR and Cloudflare Worker Configuration Complete Guide

Lightweight Production Monitoring & Alerting System — A 5-Minute Guardian in 85 Lines of Shell Script

Based on a production-grade monitor.sh script, this article details the design philosophy behind container status checks, API health probes, and memory/disk/Swap threshold alerts. It covers cron automation, the fault-tolerance philosophy of set +e, and webhook extension plans.

OpenNext Cloudflare Build Pipeline Deep Dive: From Next.js Build to Worker Deployment

Nginx API Gateway: Comprehensive Practices from Multi-Domain Development to Production-Grade Security and Performance

An in-depth analysis of nginx configuration practices in real-world projects, covering development environment multi-domain routing, Google OAuth compatibility, Next.js HMR proxy, and production environment SSL/TLS, dual-zone rate limiting, proxy caching, Bot 444 silent blocking, and CORS dual-insurance mode. Includes a complete request routing matching priority table and a summary of pitfalls encountered.