Enhancements

This section outlines new features and enhancements introduced in the Cluster release 5.13.0.


StackLight logging levels

Significantly enhanced the StackLight log collection mechanism to avoid collecting and keeping an excessive amount of log messages when it is not essential. Now, during or after deployment of StackLight, you can select one of the 9 available logging levels depending on the required severity. The default logging level is INFO.


Remote logging to syslog

Implemented the capability to configure StackLight to forward all logs to an external syslog server. In this case, StackLight will send logs both to the syslog server and to Elasticsearch, which is the default target.


Hyperconverged Ceph

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Implemented the capability to configure Ceph Controller to start pods on the taint nodes and manage the resources of Ceph nodes. Now, when bootstrapping a new management or managed cluster, you can specify requests, limits, or tolerations for Ceph resources. You can also configure resource management for an existing Ceph cluster. However, such approach may cause downtime.


Ceph objectStorage section in KaasCephCluster

Improved user experience by moving the rgw section of the KaasCephCluster CR to a common objectStorage section that now includes all RADOS Gateway configurations of a Ceph cluster. The spec.rgw section is deprecated. However, if you continue using spec.rgw, it will be automatically translated into the new objectStorage.rgw section during the Container Cloud update to 2.6.0.


Ceph maintenance orchestration

Implemented the capability to enable Ceph maintenance mode using the maintenance flag not only during a managed cluster update but also when required. However, Mirantis does not recommend enabling maintenance on production deployments other than during update.