# Kustomize

16 Hacker News commenters recommended Kustomize and 14 criticized it, November 2025 to November 2026. It was recommended in 4 of 13 months.

**Verdict:** People recommend Kustomize as a simple, built-in way to customize plain Kubernetes YAML manifests for different environments without templating. Critics find it limiting and hard once deployments get complex.

## Why people recommend it

- Simple yet powerful for needs (2 comments): "Just enough features easily available to handle everything i've ever needed in the simple deployments I use." ([source](https://news.ycombinator.com/item?id=45913306)) "I've embraced kustomize and I like it. It's simple enough and powerful enough for my needs." ([source](https://news.ycombinator.com/item?id=45913267))
- Customizes plain YAML manifests per environment (3 comments): "you just write the default as perfectly normal K8s manifests in YAML" ([source](https://news.ycombinator.com/item?id=45911594)) "use Kustomize to change said manifests for prod, staging, etc." ([source](https://news.ycombinator.com/item?id=45935619)) "move on to do everything else can via Kustomize via gitop" ([source](https://news.ycombinator.com/item?id=45921316))
- Built into kubectl, works well (2 comments): "Kustomize is even somewhat included into basic kubernetes tooling, so if you want something "opinionated", it is there for you. It works." ([source](https://news.ycombinator.com/item?id=47915448)) "now with kustomize built in you can easily do everything you want with templating" ([source](https://news.ycombinator.com/item?id=49006853))
- Preferred over Helm (2 comments): "I also prefer Kustomize over Helm. That said, their removal of vars was a boneheaded decision without a working replacement." ([source](https://news.ycombinator.com/item?id=50136215)) "I definitely prefer using kustomize over helm" ([source](https://news.ycombinator.com/item?id=50134937))

## What people warn about

- Limited features and templating gaps (2 comments): "Kustomize didn’t support replacement or tempting for any arbitrary value" ([source](https://news.ycombinator.com/item?id=50141702)) "it's frustratingly limiting and also still very complicated" ([source](https://news.ycombinator.com/item?id=48550653))
- Gets complicated at scale (2 comments): "Kustomize also seems like hell when a deployment reaches a certain level of complexity." ([source](https://news.ycombinator.com/item?id=45913216)) "it's frustratingly limiting and also still very complicated" ([source](https://news.ycombinator.com/item?id=48550653))
- Hard to order execution (2 comments): "it was awful trying to figure out the order of execution" ([source](https://news.ycombinator.com/item?id=45916025)) "might be processed again after the fact with Kustomize" ([source](https://news.ycombinator.com/item?id=50135412))

## Alternatives hackers recommend

- [Helm](https://hackerapproved.com/p/helm.md): 68 recommend

## Cite as

Hacker Approved, "Kustomize", https://hackerapproved.com/p/kustomize/ (counts from 1,795,640 Hacker News comments, November 2025 to November 2026).