New features

MOSK 22.1 features

Component	Support scope	Feature
OpenStack	Full	Major changes in the component versions
	Full	CPU model configuration
Tungsten Fabric	Full	Automatic backup and restoration of Tungsten Fabric data
	Full	Tungsten Fabric settings persistency
	TechPreview	Object storage encryption
Documentation	n/a	Calculating target ratio for Ceph pools

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Major changes in the component versions

The list of the major changes in the component versions includes:

• Host OS kernel v5.4

• RabbitMQ 3.9

• Mirantis Kubernetes Engine (MKE) 3.4.6 with Kubernetes 1.20

All the relevant changes are applied to the MOSK cluster automatically during the cluster update procedure. The host machine’s kernel update implies node reboot. See the links below for details.

Learn more

• Release Notes: Update notes

• Reference Architecture: Cluster update flow

CPU model configuration

Implemented the capability to configure the CPU model through the spec:features:nova:vcpu_type definition of the OpenStackDeployment CR. The default CPU model is now host-model, which replaces the previous default kvm64 CPU model.

For deployments with CPU model customized through spec:services, remove this customization after upgrading your managed cluster.

Learn more

Reference Architecture: vCPU type

Automatic backup and restoration of Tungsten Fabric data

Implemented the capability to automatically back up and restore the Tungsten Fabric data stored in Cassandra and ZooKeeper.

The user can perform the automatic data backup by enabling the tf-dbBackup controller through the Tungsten Fabric Operator CR. By default, the job is scheduled for weekly execution, allocating PVC with 5Gi size for storing backups, and keeping 5 previous backups.

Also, MOSK allows for automatic data restoration with the ability to restore from the exact backup if required.

Learn more

• Operations guide: Automatically back up TF databases

• Operations guide: Automatically restore TF databases

Tungsten Fabric settings persistency

Implemented the Border Gateway Protocol (BGP) and encapsulation settings in the Tungsten Fabric Operator custom resource. This feature provides persistency of the BGP and encapsulation parameters.

Also, added technical preview of the VxLAN encapsulation feature.

Learn more

• Autonomous System Number (ASN)

• Traffic encapsulation

Object storage encryption

TechPreview

Implemented object storage encryption integrated with the OpenStack Key Manager service (Barbican). The feature is enabled by default in MOSK deployments with Barbican.

Learn more

• Ceph Documentation: Encryption

• Object storage server-side encryption

• Use object storage server-side encryption

Calculating target ratio for Ceph pools

Published the procedure on how to calculate target ratio for Ceph pools.

Learn more

Calculate target ratio for Ceph pools