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kube-webhook-certgen-fips

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Chainguard Image for kube-webhook-certgen

Generates certificates and updates Kubernetes webhooks, integrating with Helm to simplify Kubernetes job execution.

Chainguard Images are regularly-updated, minimal container images with low-to-zero CVEs.

Download this Image

This image is available on cgr.dev:

docker pull cgr.dev/ORGANIZATION/kube-webhook-certgen:latest

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

Forked version, maintained by ingress-nginx project!

NOTE: this is the ingress-nginx projects fork of kube-webhook-certgen. The original project is no longer maintained.

Prometheus operator

Below is an example of how to deploy the prometheus operator, which utilizes this image.

First, add the helm operator:

helm repo add prometheus-community https://prometheus-community.github.io/helm-charts
helm repo update

Then, use the following Terraform configuration to deploy the Prometheus Operator. Note, we're utilizing theChainguard prometheus operator image, as well as the Chainguard kube-webhook-certgen image:

helm install prometheus-operator prometheus-community/kube-prometheus-stack \
  --set prometheusOperator.image.registry=cgr.dev \
  --set prometheusOperator.image.repository=chainguard/prometheus-operator \
  --set prometheusOperator.image.tag=latest
  --set prometheusOperator.admissionWebhooks.patch.image.registry=cgr.dev \
  --set prometheusOperator.admissionWebhooks.patch.image.repository=chainguard/kube-webhook-certgen \
  --set prometheusOperator.admissionWebhooks.patch.image.tag=latest

For more information, refer to the following resources:

Contact Support

If you have a Zendesk account (typically set up for you by your Customer Success Manager) you can reach out to Chainguard's Customer Success team through our Zendesk portal.

What are Chainguard Images?

Chainguard Images are a collection of container images designed for security and minimalism.

Many Chainguard Images are distroless; they contain only an open-source application and its runtime dependencies. These images do not even contain a shell or package manager. Chainguard Images are built with Wolfi, our Linux undistro designed to produce container images that meet the requirements of a secure software supply chain.

The main features of Chainguard Images include:

-dev Variants

As mentioned previously, Chainguard’s distroless Images have no shell or package manager by default. This is great for security, but sometimes you need these things, especially in builder images. For those cases, most (but not all) Chainguard Images come paired with a -dev variant which does include a shell and package manager.

Although the -dev image variants have similar security features as their distroless versions, such as complete SBOMs and signatures, they feature additional software that is typically not necessary in production environments. The general recommendation is to use the -dev variants only to build the application and then copy all application artifacts into a distroless image, which will result in a final container image that has a minimal attack surface and won’t allow package installations or logins.

That being said, it’s worth noting that -dev variants of Chainguard Images are completely fine to run in production environments. After all, the -dev variants are still more secure than many popular container images based on fully-featured operating systems such as Debian and Ubuntu since they carry less software, follow a more frequent patch cadence, and offer attestations for what they include.

Learn More

To better understand how to work with Chainguard Images, we encourage you to visit Chainguard Academy, our documentation and education platform.

Licenses

Chainguard 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

This is a FIPS validated image for FedRAMP compliance.

This image is STIG hardened and scanned against the DISA General Purpose Operating System SRG with reports available.

Learn more about STIGsGet started with STIGs

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