Last changed
Contact our team to test out this image for free. Please also indicate any other images you would like to evaluate.
Minimal container image for running Kubernetes conformance tests
Chainguard Containers are regularly-updated, secure-by-default container images.
For those with access, this container image is available on cgr.dev
:
Be sure to replace the ORGANIZATION
placeholder with the name used for your organization's private repository within the Chainguard Registry.
This image is compatible with the official Kubernetes conformance tests and can be used as a drop-in replacement for registry.k8s.io/conformance:latest
. It runs the same conformance test suite and supports the same environment variables for configuration.
To run the conformance tests on your Kubernetes cluster, you can create a job with the following configuration:
The kube-conformance image can also be used with Sonobuoy, which is a diagnostic tool that makes it easier to run the Kubernetes conformance tests:
The conformance tests can be configured with the following environment variables:
E2E_FOCUS
: Test filter to select which tests to run (default: \[Conformance\]
)E2E_PARALLEL
: Number of tests to run in parallel (default: 1
)E2E_PROVIDER
: Kubernetes provider for the tests (default: local
)E2E_SKIP
: Tests to skip (default: none)E2E_VERBOSITY
: Verbosity level for the tests (default: 4
)KUBECONFIG
: Path to kubeconfig file (defaults to in-cluster config)RESULTS_DIR
: Directory to store test results (default: /tmp/results
)Additional resources:
Chainguard's free tier of Starter container images are built with Wolfi, our minimal Linux undistro.
All other Chainguard Containers are built with Chainguard OS, Chainguard's minimal Linux operating system designed to produce container images that meet the requirements of a more secure software supply chain.
The main features of Chainguard Containers include:
For cases where you need container images with shells and package managers to build or debug, most Chainguard Containers come paired with a development, or -dev
, variant.
In all other cases, including Chainguard Containers tagged as :latest
or with a specific version number, the container images include only an open-source application and its runtime dependencies. These minimal container images typically do not contain a shell or package manager.
Although the -dev
container image variants have similar security features as their more minimal versions, they include additional software that is typically not necessary in production environments. We recommend using multi-stage builds to copy artifacts from the -dev
variant into a more minimal production image.
To improve security, Chainguard Containers include only essential dependencies. Need more packages? Chainguard customers can use Custom Assembly to add packages, either through the Console, chainctl
, or API.
To use Custom Assembly in the Chainguard Console: navigate to the image you'd like to customize in your Organization's list of images, and click on the Customize image button at the top of the page.
Refer to our Chainguard Containers documentation on Chainguard Academy. Chainguard also offers VMs and Libraries — contact us for access.
This software listing is packaged by Chainguard. The trademarks set forth in this offering are owned by their respective companies, and use of them does not imply any affiliation, sponsorship, or endorsement by such companies.
Chainguard container images contain software packages that are direct or transitive dependencies. The following licenses were found in the "latest" tag of this image:
Apache-2.0
GCC-exception-3.1
GPL-3.0-or-later
LGPL-2.1-or-later
MIT
MPL-2.0
For a complete list of licenses, please refer to this Image's SBOM.
Software license agreement