Chainguard Container for cass-config-builder

Minimal cass-config-builder container image.

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/cass-config-builder:latest

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

To use this image you can follow up the official documentation of installing the Helm Chart for K8ssandra Operator, here.

In the ImageConfiguration section which allows you to configure the K8ssandra images to use custom registries or custom images, you can use the this image for the cass-config-builder image config, here as an example:

apiVersion: config.k8ssandra.io/v1beta1
kind: ImageConfig
metadata:
  name: image-config
images:
...
  config-builder: "cgr.dev/chainguard/cass-config-builder:latest"
...

If you do this change right after your installation, you might need to delete the pods under the k8ssandra-operator namespace for the changes to take effect by the pods being recreated but please verify that the pods are up and running before proceeding with the next steps.

Next, to test the image whether it is actually working you should create K8ssandraCluster CR with the following spec, here:

apiVersion: k8ssandra.io/v1alpha1
kind: K8ssandraCluster
metadata:
  name: demo
  namespace: k8ssandra-operator
spec:
  cassandra:
    serverVersion: "4.0.1"
    datacenters:
      - metadata:
          name: dc1
        size: 3
        storageConfig:
          cassandraDataVolumeClaimSpec:
            storageClassName: standard # make sure that you configure this to match your environment
            accessModes:
              - ReadWriteOnce
            resources:
              requests:
                storage: 5Gi
        config:
          jvmOptions:
            heapSize: 512M
        stargate:
          size: 1
          heapSize: 256M

After you created the K8ssandraCluster CR, there should be a pod with the name demo-dc1-default-sts-0 under the k8ssandra-operator namespace up and running because the cass-config-builder image is going to be used as an initContainer so if the pod is up and running we can confirm that the image is working as expected.

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.