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Chainguard Container for cert-manager

Wolfi-based images for cert-manager, a tool for provisioning and managing TLS certificates in Kubernetes.

Chainguard Containers are regularly-updated, secure-by-default container images.

Download this Container Image

For those with access, this container image is available on cgr.dev:

docker pull cgr.dev/ORGANIZATION/cert-manager:latest

Be sure to replace the ORGANIZATION placeholder with the name used for your organization's private repository within the Chainguard Registry.

Compatibility Notes

Chainguard's cert-manager images are comparable to the official cert-manager tools found in the project's official GitHub repository.

Getting Started

cert-manager is composed of multiple container images:

cgr.dev/$ORGANIZATION/cert-manager-controller:latest
cgr.dev/$ORGANIZATION/cert-manager-cainjector:latest
cgr.dev/$ORGANIZATION/cert-manager-acmesolver:latest
cgr.dev/$ORGANIZATION/cert-manager-webhook:latest

These can be deployed separately, but are typically deployed together leveraging the official cert-manager Helm chart.

The following is an example of how to use Chainguard's cert-manager images with the official Helm chart:

# Replace `--version`` accordingly, refer to Helm chart documentation.
helm install \
  cert-manager jetstack/cert-manager \
	--namespace cert-manager \
	--create-namespace \
	--version v1.13.3 \
	--set image.repository=cgr.dev/$ORGANIZATION/cert-manager-controller \
	--set image.tag=latest \
	--set cainjector.image.repository=cgr.dev/$ORGANIZATION/cert-manager-cainjector \
	--set cainjector.image.tag=latest \
	--set acmesolver.image.repository=cgr.dev/$ORGANIZATION/cert-manager-acmesolver \
	--set acmesolver.image.tag=latest \
	--set webhook.image.repository=cgr.dev/$ORGANIZATION/cert-manager-webhook \
	--set webhook.image.tag=latest \
	--set installCRDs=true

Be sure to replace $ORGANIZATION with the name used for your organization's private repository within the Chainguard registry. Additionally, please note that if the required CRDs are not available in the cluster, the Helm chart will fail if --set installCRDs=true is omitted.

Documentation and Resources

Please refer to the upstream documentation for full instructions on how to use and deploy cert-manager with Helm.

What are Chainguard Containers?

Chainguard Containers are minimal container images that are secure by default.

In many cases, the Chainguard Containers tagged as :latest contain only an open-source application and its runtime dependencies. These minimal container images typically do not contain a shell or package manager. Chainguard Containers are built with Wolfi, our Linux undistro 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 -dev variant.

Although the -dev container image variants have similar security features as their more minimal versions, they feature additional software that is typically not necessary in production environments. We recommend using multi-stage builds to leverage the -dev variants, copying application artifacts into a final minimal container that offers a reduced attack surface that won’t allow package installations or logins.

Learn More

To better understand how to work with Chainguard Containers, please visit Chainguard Academy and Chainguard Courses.

In addition to Containers, Chainguard offers VMs and Libraries. Contact Chainguard to access additional products.

Trademarks

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.

Licenses

Chainguard container images contain software packages that are direct or transitive dependencies. The following licenses were found in the "latest" version 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 agreement

Compliance

A FIPS validated version of this image is available for FedRAMP compliance. STIG is included with FIPS image.


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