Chainguard Container for kubernetes-secret-generator

Kubernetes controller for automatically generating and updating secrets

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/kubernetes-secret-generator: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 kubernetes-secret-generator container image is comparable to the mittwald/kubernetes-secret-generator image on quay.io, with the following differences:

• Like all other Chainguard Containers, kubernetes-secret-generator features a stripped down, minimal design
• It has few-to-zero CVEs

Getting Started

To get started with kubernetes-secret-generator, we can leverage the official Helm chart provided by Mittwald. Below is a simple example of how to deploy kubernetes-secret-generator using Helm.

Let's start by adding the Helm chart repository:

helm repo add mittwald https://helm.mittwald.de
helm repo update

Next, we can install the kubernetes-secret-generator chart:

helm install my-secret-generator mittwald/kubernetes-secret-generator \
  --set image.registry=cgr.dev \
  --set image.repository=ORGANIZATION/kubernetes-secret-generator \
  --set image.tag=latest

Make sure to replace ORGANIZATION with your actual organization name in the Chainguard Registry.

Let's verify that the deployment was successful:

kubectl get pods -l app.kubernetes.io/name=kubernetes-secret-generator

You should see a pod running for the kubernetes-secret-generator.

To test the functionality, you can create a dummy Secret resource. Here's an example YAML file:

apiVersion: v1
kind: Secret
metadata:
  name: string-secret
  annotations:
    secret-generator.v1.mittwald.de/autogenerate: password
data:
  username: c29tZXVzZXI=

once you apply this YAML file, the kubernetes-secret-generator will automatically generate a password and add it to the Secret.

kubectl apply -f secret.yaml

You can then check the generated secret:

kubectl get secret string-secret -o yaml

You should see the generated password in the output.

Documentation and Resources

• Official Documentation
• GitHub Repository

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:

• Minimal design, without unnecessary software bloat
• Daily builds to ensure container images are up-to-date with available security patches
• High quality build-time SBOMs attesting to the provenance of all artifacts within the image
• Verifiable signatures provided by Sigstore
• Reproducible builds with Cosign and apko (read more about reproducibility)

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.