StackLight

This section provides information about deprecated and removed functionality in Mirantis StackLight.

Alertmanager API v1

Deprecated	MOSK 25.1 and Container Cloud 2.29.0
Unsupported	To be decided
Details	Deprecated the Alertmanager API v1 in favor of v2. The current Alertmanager version supports both API versions. However, in one of the upcomping MOSK and Container Cloud releases, Alertmanager will be upgraded to the version that supports only the API v2. Therefore, if you use API v1, update your integrations and configurations to use the API v2 to ensure compatibility with the upgraded Alertmanager.

RabbitMQ Prometheus Exporter

Deprecated	MOSK 25.1 and Container Cloud 2.29.0
Unsupported	To be decided
Details	Following the upstream deprecation in Prometheus, deprecated the prometheus-rabbitmq-exporter job in favor of the rabbitmq-prometheus-plugin one, which is based on the native RabbitMQ Prometheus plugin ensuring reliable and direct metric colletion. As a result, deprecated and renamed the RabbitMQ Grafana dashboard to the RabbitMQ [Deprecated] one. As a replacement, use the RabbitMQ Overview and RabbitMQ Erlang Grafana dashboards. Warning If you use deprecated RabbitMQ metrics in customizations such as alerts and dashboards, switch to the new metrics and dashboards within the course of the MOSK 25.1 series to prevent issues once the deprecated metrics and dashboard will be removed.

Angular plugins in Grafana dashboards

Deprecated	MOSK 24.3 and Container Cloud 2.28.0
Unsupported	MOSK 25.1 and Container Cloud 2.29.0
Details	Following the upstream deprecation in Grafana, deprecated the Angular-based plugins in favor of the React-based ones. In Container Cloud 2.29.0 and MOSK 25.1, where Grafana is updated from version 10 to 11, the following Angular plugins are automatically migrated to the React ones: Graph (old) -> Time Series Singlestat -> Stat Stat (old) -> Stat Table (old) -> Table Worldmap -> Geomap All Grafana dashboards provided by StackLight are also migrated to React automatically. For the list of default dashboards, see View Grafana dashboards. Warning This migration may corrupt custom Grafana dashboards that have Angular-based panels. Therefore, if you have such dashboards, back them up and manually upgrade Angular-based panels during the course of Container Cloud 2.28.x and MOSK 24.3.x to prevent custom appearance issues after plugin migration.

The telegraf-openstack plugin

Deprecated	MOSK 23.3
Final release	MOSK 23.3.4
Removed	MOSK 24.1
Details	The StackLight telegraf-openstack plugin is going to be replaced by osdpl-exporter. As a result, all valuable Telegraf metrics that are used by StackLight components will be reimplemented in osdpl-exporter and all dependent StackLight alerts and dashboards will start using new metrics. Therefore, if you use any telegraf-openstack metrics in any cluster customizations, consider reimplementing them with new metrics. To obtain the list of metrics that are removed and replaced with new ones, contact Mirantis support.

The resourcesPerClusterSize parameter

Deprecated	MOSK 24.3 and Container Cloud 2.28.0
Removed	To be decided
Details	Deprecated the resourcesPerClusterSize parameter in StackLight configuration in favor of the resources parameter.

Logging parameters

Deprecated	MOSK 23.3 and Container Cloud 2.25.0
Removed	MOSK 24.1 and Container Cloud 2.26.0
Details	Removed the following logging-related StackLight parameters in the light of the logging pipeline refactoring: logging.level (also removed from the logging.externalOutputs configuration) logging.syslog.level logging.retentionTime elasticsearch.logstashRetentionTime elasticsearch.retentionTime

The logging.syslog parameter

Deprecated	MOSK 23.1 and Container Cloud 2.23.0
Removed	To be decided
Details	Deprecated logging.syslog in favor of logging.externalOutputs that contains a wider range of configuration options.

Services and parameters related to OpenSearch and Kibana

Deprecated	MOSK 22.3 and Container Cloud 2.18.0
Removed	To be decided
Details	Deprecated elasticsearch-master in favor of opensearch-master. In future releases, the following parameters of the stacklight.values section will be deprecated and finally replaced by: elasticsearch in favor of logging elasticsearch.retentionTime in favor of logging.retentionTime resourcesPerClusterSize.elasticsearch in favor of resourcesPerClusterSize.opensearch resourcesPerClusterSize.fluentdElasticsearch in favor of resourcesPerClusterSize.fluentdLogs resources.fluentdElasticsearch in favor of resources.fluentdLogs resources.elasticsearch in favor of resources.opensearch resources.iamProxyKibana in favor of resources.iamProxyOpenSearchDashboards resources.kibana in favor of resources.opensearchDashboards nodeSelector.component.elasticsearch in favor of nodeSelector.component.opensearch nodeSelector.component.fluentdElasticsearch in favor of nodeSelector.component.fluentdLogs nodeSelector.component.kibana in favor of nodeSelector.component.opensearchDashboards tolerations.component.elasticsearch in favor of tolerations.component.opensearch tolerations.component.fluentdElasticsearch in favor of tolerations.component.fluentdLogs tolerations.component.kibana in favor of tolerations.component.opensearchDashboards stacklightLogLevels.component.fluentdElasticsearch in favor of stacklightLogLevels.component.fluentdLogs stacklightLogLevels.component.elasticsearch in favor of stacklightLogLevels.component.opensearch stacklightLogLevels.component.kibana in favor of stacklightLogLevels.component.opensearchDashboards

Elasticsearch and Kibana

Deprecated	MOSK 22.2 and Container Cloud 2.16.0
Removed	To be decided
Details	Replaced Elasticsearch with OpenSearch, and Kibana with OpenSearch Dashboards due to licensing changes for Elasticsearch. OpenSearch is a fork of Elasticsearch under the open-source Apache License with development led by Amazon Web Services. For new deployments with the logging stack enabled, OpenSearch is now deployed by default. For existing deployments, migration to OpenSearch is performed automatically during clusters update. However, the entire Elasticsearch cluster may go down for up to 15 minutes.

Retention Time parameter in the Container Cloud web UI

Deprecated	MOSK 22.2 and Container Cloud 2.16.0
Removed	MOSK 22.3 and Container Cloud 2.17.0
Details	Replaced the Retention Time parameter with the Logstash Retention Time, Events Retention Time, and Notifications Retention Time parameters.

logstashRetentionTime parameter for Elasticsearch

Deprecated	MOSK 22.2 and Container Cloud 2.16.0
Removed	MOSK 24.1 and Container Cloud 2.26.0
Details	Deprecated the elasticsearch.logstashRetentionTime parameter in favor of the elasticsearch.retentionTime.logstash, elasticsearch.retentionTime.events, and elasticsearch.retentionTime.notifications parameters.

match and match_re keys for notifications routes

Deprecated	MOSK 21.5 and Container Cloud 2.12.0
Removed	MOSK 21.6 and Container Cloud 2.14.0
Details	Replaced match and match_re keys for configuration of notifications routes with the matchers key.