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'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:

• 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 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.

Need additional packages?

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.

Learn More

Refer to our Chainguard Containers documentation on Chainguard Academy. Chainguard also offers VMs and Libraries — contact us for access.

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.