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Artifact Ratification Framework (CNCF Sandbox)
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.
Chainguard's ratify
container is a lean, Wolfi-based container image. It is functionally equivalent to the upstream Ratify image while maintaining minimal dependencies and enhanced security.
But there are some differences between the upstream and Chainguard's ratify
container image:
/opt/ratify/config.json
instead of /.ratify/config.json
./opt/ratify/plugins
instead of /.ratify/plugins
.In order to deploy Ratify in your Kubernetes cluster, first things first, you need to install the Gatekeeper admission controller. You can follow the Gatekeeper installation guide.
To deploy Gatekeeper, first, you need to add the Gatekeeper Helm repository:
You can use Chainguard image for Gatekeeper by setting the image.repository
and image.release
values in a values.yaml
file:
Then, you can install Gatekeeper using the following command:
Once Gatekeeper is installed, you can deploy the Ratify admission controller. You can use the Ratify Helm chart to deploy Ratify in your cluster. First, add the Ratify Helm repository:
You can use the Chainguard image for Ratify by setting the image.repository
and image.tag
values in a values.yaml
file:
Then install the webhook using the values.yaml
file:
Then you can follow up the Ratify documentation to configure Ratify constraints to enforce policies on your Kubernetes cluster.
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
LGPL-2.1-or-later
MIT
MPL-2.0
For a complete list of licenses, please refer to this Image's SBOM.
Software license agreementA FIPS validated version of this image is available for FedRAMP compliance. STIG is included with FIPS image.