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.

Enhancements

This section outlines new features implemented in the Cluster release 12.5.0 that is introduced in the Container Cloud release 2.21.1.

• Support for MKE 3.5.5 and MCR 20.10.13

• MetalLB minor version update

• Enhanced etcd monitoring

Support for MKE 3.5.5 and MCR 20.10.13

Added support for the Mirantis Kubernetes Engine (MKE) 3.5.5 with Kubernetes 2.21 and the Mirantis Container Runtime (MCR) version 20.10.13.

An update from the Cluster release 8.10.0 to 12.5.0 becomes available through the Container Cloud web UI menu once the related management or regional cluster automatically upgrades to Container Cloud 2.21.1.

Learn more

• Operations Guide: Update a managed cluster

• MKE documentation: MKE release notes

• MCR documentation: MCR release notes

MetalLB minor version update

Updated the MetalLB version from 0.12.1 to 0.13.4 to apply the latest enhancements. The MetalLB configuration is now stored in dedicated MetalLB objects instead of the ConfigMap object.

Learn more

• MetalLB release notes

• Verify the current MetalLB configuration

Enhanced etcd monitoring

Improved etcd monitoring by implementing the Etcd dashboard and etcdDbSizeCritical and etcdDbSizeMajor alerts that inform about the size of the etcd database.

Learn more

• Etcd alerts

• View Grafana dashboards