This article explains why Kustomize's replacements struggle with multi‑line ConfigMap data, demonstrates a failing example, and then shows how to use JSON Patch or Strategic Merge Patch via the patches field to reliably replace entire multi‑line strings such as Java .properties files.
This tutorial explains how to perform partial updates of RESTful resources using the HTTP PATCH method and JSON Patch format in Spring Boot 3.2.5, covering all RFC‑6902 operations with code examples and a complete working controller implementation.
This article introduces the Go json-patch library, explains its RFC 6902‑based operations, provides step‑by‑step code examples, details each operation, and offers advanced usage tips and best practices for applying JSON patches in backend applications.
This article explains how to efficiently detect changes in complex Kubernetes Operator objects by comparing current and desired states using methods such as reflect.DeepEqual, hash‑based comparison, JSON Patch generation, deep copying, and custom comparison functions, and offers best‑practice guidance for reliable controller implementations.
This article explains the JSON Patch standard (RFC 6902), detailing its purpose, structure, supported operations, ordering and atomicity rules, and provides concrete code examples for add, remove, replace, move, copy, and test operations, including edge‑case handling.
The article explains the differences between JSON Patch (RFC 6902) and JSON Merge Patch (RFC 7396), shows concrete examples of each, and argues that JSON Patch is preferable for complex Kubernetes PATCH scenarios because Merge Patch’s simple format imposes serious limitations.
The article examines Spring Data REST’s CVE‑2017‑8046 remote‑code‑execution flaw, showing how a malicious JSON Patch path is turned into an unchecked SpEL expression that can run arbitrary commands, reproduces the exploit on a sample Spring Boot app, and advises upgrading to versions that include the path‑verification fix.
