Chainguard Container for eks-distro

An open-source distribution of Kubernetes from AWS

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/eks-distro:latest

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

Usage

Amazon EKS Distro (EKS-D) is a Kubernetes distribution based on and used by Amazon Elastic Kubernetes Service (EKS) to create reliable and secure Kubernetes clusters. For more Information

Components

This deployment includes the following critical components:

• CoreDNS: A DNS server that integrates with Kubernetes.
• EBS CSI Driver: A Container Storage Interface (CSI) driver for managing AWS Elastic Block Store volumes.
• Kubernetes CSI drivers: External provisioners, resizers, and snapshot controllers to manage storage resources effectively.

Installation

For installation instructions, visit the EBS CSI Driver Install Guide.

1. Using Helm Chart

To deploy using Helm charts, you can use the following command. This command overrides the default image to use the Chainguard image

kubectl apply -k "github.com/kubernetes-sigs/aws-ebs-csi-driver/deploy/kubernetes/overlays/stable/?ref=release-1.35"

helm repo add aws-ebs-csi-driver https://kubernetes-sigs.github.io/aws-ebs-csi-driver
helm repo update

helm upgrade --install aws-ebs-csi-driver \
   --namespace kube-system \
   aws-ebs-csi-driver/aws-ebs-csi-driver \
   --set sidecars.provisioner.image.repository=cgr.dev/chainguard/eks-distro-kubernetes-csi-external-provisioner \
   --set sidecars.provisioner.image.tag=latest \
   --set sidecars.attacher.image.repository=cgr.dev/chainguard/eks-distro-kubernetes-csi-external-attacher \
   --set sidecars.attacher.image.tag=latest \
   --set sidecars.resizer.image.repository=cgr.dev/chainguard/eks-distro-kubernetes-csi-external-resizer \
   --set sidecars.resizer.image.tag=latest \
   --set sidecars.livenessProbe.image.repository=cgr.dev/chainguard/eks-distro-kubernetes-csi-livenessprobe \
   --set sidecars.livenessProbe.image.tag=latest

Refer to the values.yaml file for more configuration options.

2. Using Amazon EKS/KOPS Clusters

To test the EBS CSI driver functionality and verify its deployment, we need to create and deploy an EKS cluster. Similarly, for testing kube-components, we can create and deploy a KOPS cluster and update the manifests accordingly.

Using EKS Distro Pause Image with EKS Distro

Using the Chainguard Pause image requires changing the containerd configuration on the EKS nodes. If you've SSH access to the underlying nodes of the cluster, then you can edit the containerd configuration file directly. If you don't have access to the nodes then you can use a plugin called kubectl-node-shell

In containerd configuration, the default sandbox_image needs to be replaced with the Chainguard pause image. Use the editor of your choice to replace the default pause image with the Chainguard pause image which is cgr.dev/chainguard/eks-distro-kubernetes-pause:latest. To replace the default pause image with the Chainguard pause image, you need to edit the containerd config file on the node.

[plugins."io.containerd.grpc.v1.cri"]
sandbox_image = "cgr.dev/chainguard/eks-distro-kubernetes-pause:latest"

After this, restart the containerd service:

$ sudo systemctl restart containerd

Checking the list of containers using the ctr command will show the pause container with the Chainguard pause image.

$ ctr -n k8s.io containers list

Additional Resources

• EKS-Distro GitHub Repository
• Kubernetes Documentation
• AWS EKS Documentation

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.