ingress-nginx Retired in 2026: Key Pitfalls Teams Face When Migrating to HAProxy

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The ingress-nginx project was officially retired in March 2026, ending all releases and security patches despite being used in roughly half of all Kubernetes clusters. Installations of the retired project proceed without any warnings, meaning automated pipelines can continue deploying it silently. A hands-on migration test revealed that switching to HAProxy Kubernetes Ingress Controller is not simply an annotation-mapping exercise — subtle but serious issues emerge around IP address forwarding and protocol headers. Each network hop rewrites the source address, causing the original client IP to be buried under intermediate addresses, while X-Forwarded-Proto is incorrectly set to HTTP even for HTTPS connections, potentially breaking redirects and secure cookies. An additional practical hazard was found in Cloudflare IP list generation, where a missing newline between IPv4 and IPv6 ranges causes HAProxy to reject its own configuration at load time.

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Open-source CLI tool lets developers preview and debug thermal receipts without a printer

ESCPost, an open-source Rust command-line tool released under the Apache-2.0 license, allows developers to render and debug ESC/POS thermal printer receipts entirely on their local machine without needing physical hardware. The tool converts raw ESC/POS byte sequences into PNG images at the printer's actual dot resolution, cutting a typical test cycle from around 90 seconds to roughly 3 seconds. It also includes a TCP server mode that intercepts print jobs sent over port 9100 from third-party software such as ERP or POS systems, displaying decoded commands and byte-level details in a browser interface. Developers can identify common issues like incorrect code pages causing garbled currency symbols by inspecting the exact byte and its associated printer state. The tool supports multiple printer profiles to account for real-world differences in printable width, DPI, and character sets, and is available to install via Homebrew.

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ProgrammingDEV Community ·

How to Test Apple Pay in Sandbox: Common Pitfalls and Setup Guide

A developer at a company was tasked with integrating Apple Pay for the first time after management requested support for Google Pay and Apple Pay alongside an existing card payment flow. While the code integration was completed in roughly one day with AI assistance, testing the implementation in a UAT sandbox environment presented unexpected challenges. The article documents the process of working with a .p12 certificate file, including how to extract and verify certificates and private keys using OpenSSL commands. It also highlights the critical distinction between two types of Apple Pay certificates — the Merchant Identity Certificate and the Payment Processing Certificate — which serve different purposes and cannot be used interchangeably. The write-up is intended as a practical reference for engineers encountering similar hurdles when setting up Apple Pay sandbox testing.

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ProgrammingDEV Community ·

Spam Bots Flooded GitHub With 40 Million Fake Commits in July 2026

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ProgrammingDEV Community ·

AI Agent Used 437,000 Tokens to Answer a Simple Question via MCP Server

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