Mirantis Container Cloud (MCC) becomes part of Mirantis OpenStack for Kubernetes (MOSK)!

Starting with MOSK 25.2, the MOSK documentation set covers all product layers, including MOSK management (formerly MCC). This means everything you need is in one place. The separate MCC documentation site will be retired, so please update your bookmarks for continued easy access to the latest content.

2.28.5

The Container Cloud patch release 2.28.5, which is based on the 2.28.0 major release, provides the following updates:

• Support for the patch Cluster release 16.3.5.

• Support for the patch Cluster release 17.3.5 that represents MOSK patch release 24.3.2 patch.

• Support for Mirantis Kubernetes Engine 3.7.18 and Mirantis Container Runtime 23.0.15, which includes containerd 1.6.36.

• Optional migration of container runtime from Docker to containerd.

• Bare metal: update of Ubuntu mirror from ubuntu-2024-12-05-003900 to ubuntu-2025-01-08-003900 along with update of minor kernel version from 5.15.0-126-generic to 5.15.0-130-generic.

• Security fixes for CVEs in images.

This patch release also supports the latest major Cluster releases 17.3.0 and 16.3.0. And it does not support greenfield deployments based on deprecated Cluster releases. Use the latest available Cluster release instead.

For main deliverables of the parent Container Cloud release of 2.28.5, refer to 2.28.0.

• Update notes
  • Post-update actions
    • Optional migration of container runtime from Docker to containerd
    • Back up custom Grafana dashboards
• Security notes
• Known issues
  • Bare metal
    • [47202] Inspection error on bare metal hosts after dnsmasq restart
    • [42386] A load balancer service does not obtain the external IP address
    • [24005] Deletion of a node with ironic Pod is stuck in the Terminating state
  • Ceph
    • [50566] Ceph upgrade is very slow during patch or major cluster update
    • [26441] Cluster update fails with the MountDevice failed for volume warning
  • LCM
    • [39437] Failure to replace a master node on a Container Cloud cluster
    • [31186,34132] Pods get stuck during MariaDB operations
  • StackLight
    • [44193] OpenSearch reaches 85% disk usage watermark affecting the cluster state
  • Container Cloud web UI
    • [50181] Failure to deploy a compact cluster
    • [50168] Inability to use a new project right after creation
• Artifacts
  • Bare metal artifacts
  • Core artifacts
  • IAM artifacts