Conftest vs Kubetest2
Conftest
conftest.devKubetest2
github.comSide by side
| Figure | Conftest | Kubetest2 |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | — |
| API | — | Yes |
| Self-hosted | — | Yes |
| Plans published | 1 | 1 |
| Spec score · Infrastructure Testing Tools | 8.4 (#4) | 8.2 (#6) |
| Community support | The project directs discussions and questions to the Open Policy Agent Slack #opa-conftest channel. | The README directs users to Kubernetes community Slack and a mailing list to contact maintainers. |
| Purpose | Conftest is a utility for writing tests against structured configuration data. | Kubetest2 is a framework for deploying Kubernetes clusters and running end-to-end tests against them. |
Plans
In their own words
Conftest
Conftest is a free utility for testing structured configuration data, designed for use in CI environments. It uses the Open Policy Agent Rego language to express policies, then evaluates deny, violation, and warning rules within namespaces. Configuration can be read from individual files, directories, multiple files, or standard input. Supported inputs include Kubernetes-style YAML, JSON, HCL and HCL2, Dockerfiles, Terraform-related data, JSONnet, TOML, and XML. Results can be output as plaintext, JSON, TAP, table, JUnit, GitHub, Azure DevOps, or SARIF; the GitHub outputter can annotate test results in workflows. The `conftest verify` command runs policy unit tests. Policies can be pulled from HTTPS URLs, Git repositories, and OCI registries, or pushed to compatible OCI registries. Plugins extend the CLI, with downloads available from sources including OCI, Git, HTTP/HTTPS, Mercurial, and cloud storage. Pre-commit hooks support policy workflows, and integrations are documented for CircleCI, GitHub Actions, and Tekton. Conftest is available for Linux, macOS, and Windows.