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

We are bringing MCC documentation into the MOSK documentation set so you can find everything in one place. The current MCC documentation portal will be retired soon, so we encourage you to update your bookmarks and workflows for continued easy access to the latest content.

2.26.0

The Mirantis Container Cloud major release 2.26.0:

• Introduces support for the Cluster release 17.1.0 that is based on the Cluster release 16.1.0 and represents Mirantis OpenStack for Kubernetes (MOSK) 24.1.

• Introduces support for the Cluster release 16.1.0 that is based on Mirantis Container Runtime (MCR) 23.0.9 and Mirantis Kubernetes Engine (MKE) 3.7.5 with Kubernetes 1.27.

• Does not support greenfield deployments on deprecated Cluster releases of the 17.0.x and 16.0.x series. Use the latest available Cluster releases of the series instead.

  Caution

  Make sure to update the Cluster release version of your managed cluster before the current Cluster release version becomes unsupported by a new Container Cloud release version. Otherwise, Container Cloud stops auto-upgrade and eventually Container Cloud itself becomes unsupported.

This section outlines release notes for the Container Cloud release 2.26.0.

• Enhancements
  • Pre-update inspection of pinned product artifacts in a ‘Cluster’ object
  • Disablement of worker machines on managed clusters
  • Day-2 management API for bare metal clusters
  • Strict filtering for devices on bare metal clusters
  • Dynamic IP allocation for faster host provisioning
  • Support for Kubernetes auditing and profiling on management clusters
  • Cleanup of LVM thin pool volumes during cluster provisioning
  • Wiping a device or partition before a bare metal cluster deployment
  • Policy Controller for validating pod image signatures
  • Configuring trusted certificates for Keycloak
  • Health monitoring of cluster LCM operations
  • Container Cloud web UI improvements for bare metal
  • Documentation enhancements
• Addressed issues
• Known issues
  • Bare metal
    • [46245] Lack of access permissions for HOC and HOCM objects
    • [42386] A load balancer service does not obtain the external IP address
    • [41305] DHCP responses are lost between dnsmasq and dhcp-relay pods
    • [24005] Deletion of a node with ironic Pod is stuck in the Terminating state
  • vSphere
    • [40747] Unsupported Cluster release is available for managed cluster deployment
  • LCM
    • [41540] LCM Agent cannot grab storage information on a host
    • [40036] Node is not removed from a cluster when its Machine is disabled
    • [39437] Failure to replace a master node on a Container Cloud cluster
    • [31186,34132] Pods get stuck during MariaDB operations
    • [30294] Replacement of a master node is stuck on the calico-node Pod start
    • [5782] Manager machine fails to be deployed during node replacement
    • [5568] The calico-kube-controllers Pod fails to clean up resources
  • Ceph
    • [41819] Graceful cluster reboot is blocked by the Ceph ClusterWorkloadLocks
    • [26441] Cluster update fails with the MountDevice failed for volume warning
  • StackLight
    • [44193] OpenSearch reaches 85% disk usage watermark affecting the cluster state
    • [42304] Failure of shard relocation in the OpenSearch cluster
    • [40020] Rollover policy update is not appllied to the current index
  • Container Cloud web UI
    • [41806] Configuration of a management cluster fails without Keycloak settings
• Components versions
• Artifacts
  • Bare metal artifacts
  • Core artifacts
  • IAM artifacts
• Security notes
• Update notes
  • Pre-update actions
    • Unblock cluster update by removing any pinned product artifacts
    • Update queries for custom log-based metrics in StackLight
  • Post-update actions
    • Update bird configuration on BGP-enabled bare metal clusters
    • Review and adjust the storage parameters for OpenSearch

See also

• Cluster releases (managed)

• Releases summary

• Deprecation notes

• Patch releases