add mimir support for resource usage estimation recording rules (#1253)

* add mimir support for resource usage estimation recording rules

* update mimir query

* update mimir query

* update query for mimir

CHANGELOG.md

@@ -13,6 +13,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Changed
 
+- Updated `monitoring.resource-usage-estimation.recording.rules` to support mimir.
 - fluentbit alerts now have a dashboard
 - add alert on sloth restarting too often (https://github.com/giantswarm/giantswarm/issues/31133)
 

helm/prometheus-rules/templates/platform/atlas/recording-rules/monitoring.resource-usage-estimation.rules.yaml

@@ -9,7 +9,14 @@ spec:
   groups:
   - name: monitoring.resource-usage-estimation.recording
     rules:
+    {{- if .Values.mimir.enabled }}
+    - expr: (sum(scrape_samples_post_metric_relabeling) by (cluster_id, job) / on(cluster_id) group_left sum(cortex_ingester_active_series{container="ingester"}) by (cluster_id)) * on(cluster_id) group_left sum(container_memory_usage_bytes{container="ingester", namespace="mimir"}) by (cluster_id)
+      record: giantswarm:observability:monitoring:resource_usage_estimation:memory_usage_bytes
+    - expr: (sum(scrape_samples_post_metric_relabeling) by (cluster_id, job) / on(cluster_id) group_left sum(cortex_ingester_active_series{container="ingester"}) by (cluster_id)) * on(cluster_id) group_left sum(container_memory_working_set_bytes{container="ingester", namespace="mimir"}) by (cluster_id)
+      record: giantswarm:observability:monitoring:resource_usage_estimation:memory_working_set_bytes
+    {{- else }}
     - expr: (count({__name__=~".+"}) by (cluster_id, job) / on(cluster_id) group_left prometheus_tsdb_head_series{instance="localhost:9090"}) * on(cluster_id) group_left sum(container_memory_usage_bytes{container="prometheus", namespace="kube-system"}) by (cluster_id)
       record: giantswarm:observability:monitoring:resource_usage_estimation:memory_usage_bytes
     - expr: (count({__name__=~".+"}) by (cluster_id, job) / on(cluster_id) group_left prometheus_tsdb_head_series{instance="localhost:9090"}) * on(cluster_id) group_left sum(container_memory_working_set_bytes{container="prometheus", namespace="kube-system"}) by (cluster_id)
       record: giantswarm:observability:monitoring:resource_usage_estimation:memory_working_set_bytes
+    {{- end }}