CDK8s
cdk8s is a free, open-source framework for defining Kubernetes applications and reusable abstractions with general-purpose programming languages and object-o…
What CDK8s is
cdk8s is a free, open-source framework for defining Kubernetes applications and reusable abstractions with general-purpose programming languages and object-oriented APIs. It supports TypeScript, JavaScript, Python, Java, and Go, and synthesizes application definitions into standard Kubernetes YAML manifests. Those manifests can target clusters in any cloud or on premises, but cdk8s does not apply them to a cluster; that step can be done with kubectl or a GitOps tool such as Flux. Users can import Kubernetes API objects and custom resource definitions, then compose higher-level constructs that can be shared through package managers. The framework runs locally in the development environment. Documentation also describes using cdk8s charts in an AWS CDK application and applying them with the EKS construct library. The CLI can be installed through Homebrew, npm, or Yarn. Community support links include issues, Stack Overflow, Slack, and a mailing list. The project is a Cloud Native Computing Foundation Sandbox Project made at AWS. cdk8s+ libraries are actively maintained only for the three latest Kubernetes releases.
Good
- Free and open source
- Supports TypeScript, JavaScript, Python, Java, and Go
- Imports Kubernetes API objects and custom resource definitions
- Constructs can be shared through package managers
Watch out
- Generates manifests but does not apply them
- cdk8s+ libraries cover only the three latest Kubernetes releases
Who it suits
It suits developers who want to define Kubernetes applications in familiar programming languages and reuse higher-level constructs. It is also relevant to teams that can handle manifest application as a separate deployment step.
Verdict
cdk8s provides a language-based way to create reusable Kubernetes definitions and standard YAML manifests. Teams should account for applying those manifests separately and for the stated maintenance scope of cdk8s+ libraries.
Plans and prices
From CDK8s's own pricing page, checked 4 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Open-source cdk8s | Free | Defines and synthesizes Kubernetes manifests; does not apply them to a cluster · No charge stated; open-source framework |
The facts
Each one read from CDK8s's own pages, with the date it was checked.
What it does
- Cluster compatibility
- The project says cdk8s can define applications for Kubernetes clusters in any cloud or on premises, and runs locally in the development environment.checked 4 Oct 2026
- Community and support
- The site provides community support links for issues, Stack Overflow, Slack, and a mailing list, and invites contributions.checked 4 Oct 2026
- Deployment workflow
- cdk8s generates manifests but does not apply them to a cluster; the docs describe applying them with kubectl or a GitOps tool such as Flux.checked 4 Oct 2026
- Installation
- The CLI installation page lists Homebrew, npm, and Yarn installation methods.checked 4 Oct 2026
- Integrations
- The docs describe using cdk8s charts in an AWS CDK application and applying them with the EKS construct library.checked 4 Oct 2026
- Kubernetes resources
- Users can import objects from Kubernetes API versions and custom resource definitions.checked 4 Oct 2026
- Kubernetes version limit
- cdk8s+ libraries are actively maintained only for the three latest Kubernetes releases.checked 4 Oct 2026
- Manifest output
- cdk8s synthesizes applications into standard Kubernetes YAML manifests that can be applied to Kubernetes clusters.checked 4 Oct 2026
- Programming languages
- The site lists TypeScript, JavaScript, Python, Java, and Go as supported languages.checked 4 Oct 2026
- Project affiliation
- The homepage identifies cdk8s as a Cloud Native Computing Foundation Sandbox Project and says it is made at AWS.checked 4 Oct 2026
- Reusable abstractions
- Constructs support composing higher-level abstractions with object-oriented classes, and can be shared through package managers.checked 4 Oct 2026
- What it does
- cdk8s is an open-source framework for defining Kubernetes applications and reusable abstractions with familiar programming languages and object-oriented APIs.checked 4 Oct 2026
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