Terraform CDK (CDKTF) will sunset and be archived on December 10, 2025. HashiCorp, an IBM Company, will no longer maintain or develop the project after that date. Unfortunately, Terraform CDK did not find product-market fit at scale. HashiCorp, an IBM Company, has chosen to focus its investments on Terraform core and its broader ecosystem.

As of December 10, 2025, Terraform CDK will be archived on GitHub, and the documentation will reflect its deprecated status. The archived code will remain available on GitHub, but it will be read-only. No further updates, fixes, or improvements (including compatibility updates) will be made.

You will be able to continue to use Terraform CDK at your own risk. Terraform CDK is licensed under the Mozilla Public License (MPL). HashiCorp, an IBM Company, does not apply any additional restrictions. We encourage community forks if there’s interest in continuing development independently.

You can use the following command to generate Terraform-compatible .tf files directly from your Terraform CDK project:

cdktf synth --hcl

This will produce readable HCL configuration files, making it easier to migrate away from Terraform CDK. After running the command, you can use standard Terraform CLI commands (terraform init, terraform plan, terraform apply) to continue managing your infrastructure. Please note that while this helps bootstrap your configuration, you may still need to review and adjust the generated files for clarity, organization, or best practices.

If your infrastructure is defined in Terraform CDK but also tightly integrated with AWS CDK, you may find it more consistent to migrate directly to the AWS CDK ecosystem. If you are not using AWS CDK, we highly recommend migrating to standard Terraform and HCL for long-term support and ecosystem alignment.

Q: Is CDKTF still being developed?

A: No. CDKTF will sunset and be archived on December 10, 2025. HashiCorp, an IBM Company, will no longer maintain or develop the project after that date.

Q: Why is CDKTF being sunset?

A: CDKTF did not find product-market fit at scale. We’ve chosen to focus our investments on Terraform core and its broader ecosystem.

Q: Will CDKTF be removed from GitHub?

A: CDKTF will be archived on GitHub, and documentation will reflect its deprecated status.

Q: Can I still use CDKTF after it's sunset?

A: Yes, the archived code will remain available on GitHub, but it will be read-only. No further updates, fixes, or improvements will be made.

Q: Will CDKTF continue to support new versions of Terraform or providers?

A: No. Compatibility updates will not be made after the EOL date.

Q: Can I fork CDKTF and maintain it myself?

A: Yes. CDKTF is open source, and we encourage community forks if there’s interest in continuing development independently.

Q: Can I keep using CDKTF?

A: You may continue to use it at your own risk. HashiCorp, an IBM Company, will no longer be maintaining it.

Q: Is there a migration tool?

A: You can use the following command to generate Terraform-compatible .tf files directly from your CDKTF project:

cdktf synth --hcl

This will produce readable HCL configuration files, making it easier to migrate away from CDKTF. After running the command, you can use standard Terraform CLI commands (terraform init, terraform plan, terraform apply) to continue managing your infrastructure. Please note that while this helps bootstrap your configuration, you may still need to review and adjust the generated files for clarity, organization, or best practices.

Q: What migration guidance can we provide to customers?

A: For users looking to migrate away from CDKTF:

If your infrastructure is defined in CDKTF but also tightly integrated with AWS CDK, you may find it more consistent to migrate directly to the AWS CDK ecosystem.

If you are not using AWS CDK, we highly recommend migrating to standard Terraform and HCL for long-term support and ecosystem alignment.

A compatibility layer for using cdk8s constructs within Terraform CDK.

The cdk8s adapter is in technical preview, which means it's a community supported project. It still requires extensive testing and polishing to mature into a HashiCorp officially supported project. Please file issues generously and detail your experience while using the library. We welcome your feedback.

By using the software in this repository, you acknowledge that:

• The cdk8s adapter is still in development, may change, and has not been released as a commercial product by HashiCorp and is not currently supported in any way by HashiCorp.
• The cdk8s adapter is provided on an "as-is" basis, and may include bugs, errors, or other issues.
• The cdk8s adapter is NOT INTENDED FOR PRODUCTION USE, use of the Software may result in unexpected results, loss of data, or other unexpected results, and HashiCorp disclaims any and all liability resulting from use of the cdk8s adapter.
• HashiCorp reserves all rights to make all decisions about the features, functionality and commercial release (or non-release) of the cdk8s adapter, at any time and without any obligation or liability whatsoever.

• cdktf >= 0.21.0
• cdk8s >= 2.8.0
• constructs >= 10.4.2

import { App, TerraformStack } from "cdktf";
import { App as CDK8sApp, Chart } from "cdk8s";
import { CDK8sProvider } from "cdktf-cdk8s";

import { MyCdk8sChart } from "./my-cdk8s-chart";

export class MyKubernetesStack extends TerraformStack {
  constructor(scope: Construct, name: string) {
    super(scope, name);

    const cdk8sApp = new CDK8sApp();

    // Configure your cdk8s application like usual
    new HelloKube(cdk8sApp, "my-chart");

    // For properties see https://registry.terraform.io/providers/hashicorp/kubernetes/latest/docs
    // Extends on the Provider class from @cdktf/provider-kubernetes
    new CDK8sProvider(this, "cdk8s-dev", {
      configPath: "./kubeconfig.yaml",
      configContext: "my-dev-cluster",

      // Only the cdk8sApp property is added
      // There is no need to run synth on the cdk8sApp, this is done by the provider
      cdk8sApp,
    });
  }
}

const app = new App();
new MyStack(app, "cdktf-cdk8s");
app.synth();

We welcome your contribution. Please understand that the experimental nature of this repository means that contributing code may be a bit of a moving target. If you have an idea for an enhancement or bug fix, and want to take on the work yourself, please first create an issue so that we can discuss the implementation with you before you proceed with the work.

You can review our contribution guide to begin.