Technology Radar
CDK Terrain (CDKTN) is a community fork of the Cloud Development Kit for Terraform (CDKTF), which HashiCorp deprecated and archived in December 2025. CDK Terrain picks up where CDKTF left off, allowing teams to define infrastructure using TypeScript, Python or Go and provision it through Terraform or OpenTofu. For teams already invested in CDKTF, CDK Terrain offers a migration path that preserves existing code and workflows rather than forcing a move to HCL or Pulumi. The project releases every month and has added OpenTofu support as a first-class target. However, community-maintained forks of vendor-abandoned projects carry inherent risk around long-term support, and the CDKTF approach never achieved broad adoption. HashiCorp cited lack of product-market fit when sunsetting it. Teams currently using CDKTF should assess CDK Terrain as a continuation option, but also weigh whether this is the right moment to migrate to a more widely supported approach.
