feat(monitoring): add Victoria Metrics cluster for ingesting Home Assistant metrics

apps/monitoring/base/kustomization.yaml

@@ -0,0 +1,7 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+resources:
+  - vmagent.yaml
+  - vmauth.yaml
+  - vmcluster.yaml
+  - vmuser-homeassistant.yaml

apps/monitoring/base/vmagent.yaml

@@ -0,0 +1,8 @@
+apiVersion: operator.victoriametrics.com/v1beta1
+kind: VMAgent
+metadata:
+  name: metrics
+spec:
+  selectAllByDefault: true
+  remoteWrite:
+    - url: "http://vminsert-metrics.monitoring-system.svc:8480/insert/0/prometheus/api/v1/write"

apps/monitoring/base/vmauth.yaml

@@ -0,0 +1,11 @@
+apiVersion: operator.victoriametrics.com/v1beta1
+kind: VMAuth
+metadata:
+  name: metrics-auth
+spec:
+  selectAllByDefault: true
+  userNamespaceSelector: {}
+  userSelector: {}
+  ingress:
+    class_name: nginx
+    host: metrics.int.nc.landry.land

apps/monitoring/base/vmcluster.yaml

@@ -0,0 +1,45 @@
+apiVersion: operator.victoriametrics.com/v1beta1
+kind: VMCluster
+metadata:
+  name: metrics
+spec:
+  retentionPeriod: "1"
+  replicationFactor: 2
+  vmstorage:
+    replicaCount: 2
+    storageDataPath: "/vm-data"
+    storage:
+      volumeClaimTemplate:
+        spec:
+          resources:
+            requests:
+              storage: "10Gi"
+    resources:
+      limits:
+        cpu: "1"
+        memory: "1Gi"
+  vmselect:
+    replicaCount: 2
+    cacheMountPath: "/select-cache"
+    storage:
+      volumeClaimTemplate:
+        spec:
+          resources:
+            requests:
+              storage: "1Gi"
+    resources:
+      limits:
+        cpu: "1"
+        memory: "1Gi"
+      requests:
+        cpu: "0.5"
+        memory: "500Mi"
+  vminsert:
+    replicaCount: 2
+    resources:
+      limits:
+        cpu: "1"
+        memory: "1Gi"
+      requests:
+        cpu: "0.5"
+        memory: "500Mi"

apps/monitoring/base/vmuser-homeassistant.yaml

@@ -0,0 +1,24 @@
+apiVersion: operator.victoriametrics.com/v1beta1
+kind: VMUser
+metadata:
+  name: metrics-user-home-assistant
+spec:
+  name: ha-metrics
+  username: ha-metrics
+  generatePassword: true
+  targetRefs:
+    # vmui + vmselect
+    - crd:
+        kind: VMCluster/vmselect
+        name: metrics
+        namespace: monitoring-system
+      target_path_suffix: "/select/0"
+      paths:
+        - "/vmui"
+        - "/vmui/.*"
+        - "/prometheus/api/v1/query"
+        - "/prometheus/api/v1/query_range"
+        - "/prometheus/api/v1/series"
+        - "/prometheus/api/v1/status/.*"
+        - "/prometheus/api/v1/label/"
+        - "/prometheus/api/v1/label/[^/]+/values"