Chainguard Container for jupyterhub-k8s-image-awaiter-fips

JupyterHub Kubernetes Image Awaiter - ensures images are pre-pulled before deployment

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/jupyterhub-k8s-image-awaiter-fips:latest

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

Compatibility Notes

The Chainguard jupyterhub-k8s-image-awaiter-fips image is designed to be a drop-in replacement for the upstream jupyterhub/k8s-image-awaiter image.

Getting Started

JupyterHub Deployment

The jupyterhub-k8s-image-awaiter image is typically deployed as part of JupyterHub's Helm chart pre-install hooks. It ensures container images are pre-pulled across all Kubernetes nodes before JupyterHub deployment proceeds.

Configure in your JupyterHub values.yaml:

prePuller:
  hook:
    enabled: true
    image:
      name: cgr.dev/ORGANIZATION/jupyterhub-k8s-image-awaiter
      tag: latest

Then install JupyterHub with the custom image:

helm repo add jupyterhub https://hub.jupyter.org/helm-chart
helm install jupyterhub jupyterhub/jupyterhub \
  --namespace jupyterhub \
  --create-namespace \
  --values values.yaml

For deployment examples and configurations, please refer to the upstream JupyterHub documentation.

Documentation and Resources

• JupyterHub Kubernetes Image Awaiter
• JupyterHub Helm Chart

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.