Multus CI failures on master pushes from 2026-04-08 to 2026-06-10 were dominated by a race in setup-multus.sh: 'kubectl wait' was invoked on a pod label selector immediately after 'kubectl create' of a daemonset, and it exits with "error: no matching resources found" when the daemonset controller has not created any pods yet. This caused 9 of the 10 genuine multus flakes across the standalone multus workflow and the canary multus-public-and-cluster job (the two share setup-multus.sh). - setup-multus.sh: wait with 'kubectl rollout status' on the daemonsets instead of 'kubectl wait' on pod label selectors. The daemonset object exists as soon as 'kubectl create' returns, and rollout status correctly waits for all desired pods to be created and become ready. The old selector wait also silently under-waited: pods created after its initial LIST were never waited on at all. The stricter wait revealed that full multi-node convergence can exceed 2 minutes on busy runners, so the wait timeout is raised to 5 minutes (the waits return as soon as the rollouts are ready, so this costs nothing on healthy runs). - Wait for the host-net-config daemonset rollout in both workflows before proceeding; it configures the host routing that the multus public network depends on and was previously not waited on at all. Pin its jonlabelle/network-tools image. - test_multus_connections: retry the osd dump / fs dump network checks for up to 2 minutes. Daemons register their addresses in the mon maps asynchronously after the cluster reports ready; one canary failure (2026-04-29) ran the MDS check at fsmap epoch 1, before any MDS had registered. - Dump cluster state (pods, daemonsets, events, multus logs) when the multus workflow job fails; the workflow previously had no failure diagnostics at all. Also remove the unused NUMBER_OF_COMPUTE_NODES env var from the multus workflow (kind-config.yaml creates 3 workers; nothing consumes it). Signed-off-by: Joshua Hoblitt <josh@hoblitt.com>
What is Rook?
Rook is an open source cloud-native storage orchestrator for Kubernetes, providing the platform, framework, and support for Ceph storage to natively integrate with Kubernetes.
Ceph is a distributed storage system that provides file, block and object storage and is deployed in large scale production clusters.
Rook automates deployment and management of Ceph to provide self-managing, self-scaling, and self-healing storage services. The Rook operator does this by building on Kubernetes resources to deploy, configure, provision, scale, upgrade, and monitor Ceph.
The status of the Ceph storage provider is Stable. Features and improvements will be planned for many future versions. Upgrades between versions are provided to ensure backward compatibility between releases.
Rook is hosted by the Cloud Native Computing Foundation (CNCF) as a graduated level project. If you are a company that wants to help shape the evolution of technologies that are container-packaged, dynamically-scheduled and microservices-oriented, consider joining the CNCF. For details about who's involved and how Rook plays a role, read the CNCF announcement.
Getting Started and Documentation
For installation, deployment, and administration, see our Documentation and QuickStart Guide.
Contributing
We welcome contributions. See Contributing to get started.
Report a Bug
For filing bugs, suggesting improvements, or requesting new features, please open an issue.
Reporting Security Vulnerabilities
If you find a vulnerability or a potential vulnerability in Rook please let us know immediately at cncf-rook-security@lists.cncf.io. We'll send a confirmation email to acknowledge your report, and we'll send an additional email when we've identified the issues positively or negatively.
For further details, please see the complete security release process.
Contact
Please use the following to reach members of the community:
- Slack: Join our slack channel
- GitHub: Start a discussion or open an issue
- Twitter: @rook_io
- Security topics: cncf-rook-security@lists.cncf.io
Community Meeting
A regular community meeting takes place the 2nd Tuesday of every month at 9:00 AM PT (Pacific Time). Convert to your local timezone.
Any changes to the meeting schedule will be added to the agenda doc and posted to Slack #announcements.
Anyone who wants to discuss the direction of the project, design and implementation reviews, or general questions with the broader community is welcome and encouraged to join.
- Meeting link: https://zoom.us/j/98052644520?pwd=K0R4RUZCc3NhQisyMnA5VlV2MVBhQT09
- Current agenda and past meeting notes
- Past meeting recordings
Official Releases
Official releases of Rook can be found on the releases page. Please note that it is strongly recommended that you use official releases of Rook, as unreleased versions from the master branch are subject to changes and incompatibilities that will not be supported in the official releases. Builds from the master branch can have functionality changed and even removed at any time without compatibility support and without prior notice.
Licensing
Rook is under the Apache 2.0 license.