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ToanPV90
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kustomize-generator

Generate Kustomize base and overlay configurations for Kubernetes applications.

Updated Apr 15, 2026
Search Tags:#kubernetes#kustomize#overlay generation#configmap generator#secret generator#strategic merge patch#json 6902 patch
One-click install
npx skills add https://github.com/ToanPV90/dotfiles --skill kustomize-generator
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: kustomize-generator
Source: https://github.com/ToanPV90/dotfiles/tree/main/claude/.claude/skills/kustomize-generator
Command: npx skills add https://github.com/ToanPV90/dotfiles --skill kustomize-generator

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

It eliminates the repetitive manual work of creating correct Kustomize directory layouts and kustomization.yaml files for multi-environment Kubernetes deployments.

Core Features & Use Cases

  • Deterministic base/overlay scaffolding: Generates a standard Kustomize structure for a clean separation of shared resources and environment-specific customization.
  • Patch-ready configuration: Produces strategic merge patches and JSON 6902 patches to handle replicas, resource overrides, and other per-environment differences.
  • ConfigMap/Secret generators: Sets up configMapGenerator and secretGenerator patterns, including safe guidance on hashing and gitignore for secret inputs.
  • Use Case: Generate a production-grade setup for converting raw Kubernetes manifests into base resources plus dev/staging/prod overlays with environment-specific images and config.

Quick Start

Tell the skill the app name, the environments you need, which manifests to include, and the per-environment replica, image tag, and config/secret differences.

Frequently Asked Questions about kustomize-generator

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I scaffold Kustomize base and overlay configurations for multiple Kubernetes environments?▼

Scaffolding Kustomize base and overlay configurations requires generating a deterministic directory structure with kustomization.yaml files for each environment. You define shared resources in a base directory and apply environment-specific customizations like image tags and replica counts in separate overlay folders.

What is the best way to manage environment-specific patches in Kustomize?▼

Managing environment-specific patches in Kustomize is best done using strategic merge patches for structural overrides and JSON 6902 patches for targeted field modifications. This approach cleanly handles per-environment differences like resource limits and replica counts without duplicating entire manifests.

How do I set up ConfigMap and Secret generators in a Kustomize overlay?▼

Setting up ConfigMap and Secret generators in a Kustomize overlay involves defining configMapGenerator and secretGenerator blocks within your kustomization.yaml file. This pattern requires careful handling of generated hashes and proper gitignore configuration for raw secret input files.

Can I convert raw Kubernetes manifests into a Kustomize-managed layout automatically?▼

Converting raw Kubernetes manifests into a Kustomize-managed layout can be automated by providing the application name, target environments, and manifest files. The process transforms static YAML files into structured base resources and overlay configurations with proper API versioning.

How do I validate generated Kustomize configurations before applying them to a cluster?▼

Validating generated Kustomize configurations is done by running the kustomize build command or using a dedicated kustomize-validator workflow. This step ensures the directory structure is deterministic, kustomization.yaml fields are correct, and patches target the intended resources.

When should I use JSON 6902 patches instead of strategic merge patches in Kustomize?▼

JSON 6902 patches are used in Kustomize when you need precise surgical edits to specific fields, while strategic merge patches are better for replacing entire container specs or resource blocks. Choosing between them depends on whether you need granular array element modifications or broader structural overrides.

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