Chainguard Container for spire-controller-manager

The SPIRE Controller Manager provides automated workload identity management for Kubernetes clusters through SPIRE

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/spire-controller-manager:latest

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

Compatibility Notes

This image is based on the upstream SPIRE Controller Manager, which provides automated workload identity management and registration for Kubernetes clusters. While this image maintains functional parity with the upstream version, it is built on Wolfi providing regular security updates and a minimal attack surface. Additionally, the image fully supports all SPIRE Controller Manager CRDs and configurations.

Getting Started

To install Chainguard spire-controller-manager image on your Kubernetes cluster, you can use the official Helm chart.

Add the SPIRE Helm repository

helm repo add spire https://spiffe.github.io/helm-charts-hardened/
helm repo update

Then override the image by setting the image.repository and image.tag values in a values.yaml file to Chainguard's image

spire-controller-manager:
  image:
    registry: cgr.dev
    repository: chainguard/spire-controller-manager
    tag: latest

Next install the CRDs

helm install spire-crds spire/spire-crds \
  -n spire-system \
  --create-namespace

Finally, install SPIRE with Chainguard's image

helm install spire spire/spire \
  -n spire-system \
  -f values.yaml

Documentation and Resources:

• Spire Controller Manager Github Repository
• Official SPIFFE 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.