Chainguard Container for rook-ceph

Storage Orchestration for Kubernetes. This is specifically for the Rook Ceph operator, which provides storage solutions for Kubernetes clusters.

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/rook-ceph: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 version of Rook Ceph is a minimal, secure, and regularly updated container image designed to deploy storage clusters in a kubernetes environment. It leverages the security features of Chainguard Images, including low-to-zero CVEs, automated nightly builds, high-quality SBOMs, verifiable signatures, and reproducible builds. cephadm and restful modules have been removed from the mgr application in this image due to underlying issues with the Py03 library.

Getting Started

To spin a minimal ceph cluster, the rook-ceph operator can be used. The chart is found here - github. Create a custom values file as shown below

image: 
  repository: "cgr.dev/ORGANIZATION/rook-ceph"
  tag: latest
csi:
  enableRbdDriver: false
  clusterName: "test-ceph"
allowLoopDevices: true
operatorNamespace: rook-ceph

Add the helm repo by executing helm repo add rook-release https://charts.rook.io/release Finally, install the helm chart with

helm install --create-namespace --namespace rook-ceph rook-ceph rook-release/rook-ceph -f custom-values.yaml

This will create the helm-operator deployment and other custom resources. Ensure that the operator pods are running.

The next step is to create the ceph cluster and here also a helm chart is used. First create another custom values file.

image:
  repository: "cgr.dev/ORGANIZATION/rook-ceph"
  tag: latest
csi:
  clusterName: "test-ceph"
  allowLoopDevices: true
  image:"cgr.dev/ORGANIZATION/rook-ceph"

cephClusterSpec:
  cephVersion:
    image: "cgr.dev/ORGANIZATION/rook-ceph"

Deploy the helm chart to create the ceph-cluster by running; helm install --create-namespace --namespace rook-ceph rook-ceph-cluster rook-release/rook-ceph-cluster -f custom-values.yaml This will create several resources and in the end, the resources created should contain the resources shown below.

NAME                                                    READY   STATUS    RESTARTS        AGE
csi-cephfsplugin-5pk52                                  3/3     Running   1 (5m35s ago)   6m9s
csi-cephfsplugin-provisioner-5687d44f8b-ldcqz           6/6     Running   4 (5m25s ago)   6m9s
rook-ceph-crashcollector-03ac22ba9f7c-9c65ff584-qfmth   1/1     Running   0               19s
rook-ceph-exporter-03ac22ba9f7c-7b55fd7d6b-9m4j6        1/1     Running   0               19s
rook-ceph-mgr-a-69b586fdfb-5mflb                        1/2     Running   0               19s
rook-ceph-mon-a-cd7cff786-lhf4l                         2/2     Running   0               6m1s
rook-ceph-operator-6f58fb659f-lhxqj                     1/1     Running   0               6m40s
rook-ceph-tools-5cb8797f56-zxzns                        1/1     Running   0               6m9s

To get information about the ceph cluster, execute commands through the rook-ceph-tools pods. For example to get the ceph cluster status,

kubectl -n rook-ceph exec rook-ceph-tools-5cb8797f56-zxzns -- ceph status

Documentation and Resources

• Rook Github - https://github.com/rook/rook
• Ceph Github - https://github.com/ceph/ceph
• Rook Docs - https://rook.github.io/docs/rook
• Ceph Docs - https://docs.ceph.com/en/reef
• Rook Helm Chart - https://rook.io/docs/rook/latest-release/Helm-Charts/operator-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.