chore(kubernetes): add thanos cache; more metrics

kubernetes/apps/default/kromgo/app/configs/config.yaml

@@ -1,9 +1,42 @@
 ---
 metrics:
-  - name: node_cpu_usage
+  - name: cluster_cpu_usage
     query: round(cluster:node_cpu:ratio_rate5m * 100, 0.1)
     suffix: "%"
     colors:
       - { color: "green", min: 0, max: 35 }
       - { color: "orange", min: 36, max: 75 }
       - { color: "red", min: 76, max: 1000 }
+
+  - name: cluster_node_count
+    query: count(count by (node) (kube_node_info))
+
+  - name: cluster_network_transmit_usage
+    query: round(avg(instance:node_network_transmit_bytes_excluding_lo:rate5m / 1024 / 1024), 0.1)
+    suffix: "MB/s"
+    colors:
+      - { color: "green", min: 0, max: 50 }
+      - { color: "orange", min: 51, max: 75 }
+      - { color: "red", min: 76, max: 1000 }
+
+  - name: cluster_network_receive_usage
+    query: round(avg(instance:node_network_receive_bytes_excluding_lo:rate5m / 1024 / 1024), 0.1)
+    suffix: "MB/s"
+    colors:
+      - { color: "green", min: 0, max: 50 }
+      - { color: "orange", min: 51, max: 75 }
+      - { color: "red", min: 76, max: 1000 }
+
+  - name: cluster_pods_running
+    query: sum(kube_pod_status_phase{phase="Running"})
+
+  - name: cluster_power_watts
+    query: avg_over_time(upsAdvanceOutputPower[5m])
+    suffix: "w"
+    colors:
+      - { color: "green", min: 0, max: 400 }
+      - { color: "orange", min: 401, max: 750 }
+      - { color: "red", min: 751, max: 2000 }
+
+  - name: plex_streams
+    query: sum(tautulli_stream_count)

kubernetes/apps/monitoring/thanos/app/configs/cache.yaml

@@ -0,0 +1,8 @@
+---
+type: REDIS
+config:
+  addr: >-
+    redis-node-0.redis-headless.databases.svc.cluster.local:26379,
+    redis-node-1.redis-headless.databases.svc.cluster.local:26379,
+    redis-node-2.redis-headless.databases.svc.cluster.local:26379
+  master_name: redis-master

kubernetes/apps/monitoring/thanos/app/helmrelease.yaml

@@ -36,6 +36,19 @@ spec:
     queryFrontend:
       enabled: true
       replicaCount: 3
+      extraFlags:
+        - --query-range.response-cache-config-file=/etc/thanos/query-cache.yaml
+      extraVolumes:
+        - name: thanos-cache
+          configMap:
+            name: thanos-cache
+      extraVolumeMounts:
+        - name: thanos-cache
+          mountPath: /etc/thanos
+          subPath: query-cache.yaml
+          readOnly: true
+      podAnnotations:
+        configmap.reloader.stakater.com/reload: thanos-cache
       ingress:
         enabled: true
         hostname: &host thanos.${PUBLIC_DOMAIN}

kubernetes/apps/monitoring/thanos/app/kustomization.yaml

@@ -4,3 +4,9 @@ kind: Kustomization
 resources:
   - ./objectbucketclaim.yaml
   - ./helmrelease.yaml
+configMapGenerator:
+  - name: thanos-cache
+    files:
+      - ./configs/cache.yaml
+generatorOptions:
+  disableNameSuffixHash: true

kubernetes/apps/monitoring/thanos/ks.yaml

@@ -7,6 +7,7 @@ metadata:
 spec:
   targetNamespace: monitoring
   dependsOn:
+    - name: cluster-apps-redis
     - name: cluster-apps-rook-ceph-cluster
     - name: cluster-apps-democratic-csi-local-hostpath
   path: ./kubernetes/apps/monitoring/thanos/app