feat(homelab): add prometheus & grafana, jless fd + more zsh plugins

nix/homelab/helm/helmfile.yaml

@@ -30,6 +30,13 @@ releases:
       - crds:
           enabled: true
 
+  - name: prometheus-stack
+    chart: oci://ghcr.io/prometheus-community/charts/kube-prometheus-stack
+    namespace: monitoring
+    version: 80.9.2
+    values:
+      - values/prometheus.yaml
+
   # Git
   - name: gitea
     namespace: git

nix/homelab/helm/values/prometheus.yaml

@@ -0,0 +1,58 @@
+# Install Prometheus Operator CRDs
+crds:
+  enabled: true
+
+alertmanager:
+  enabled: false
+
+prometheus:
+  prometheusSpec:
+    storageSpec:
+      volumeClaimTemplate:
+        spec:
+          accessModes:
+            - ReadWriteOnce
+          resources:
+            requests:
+              storage: 20Gi
+
+    retention: 15d
+    retentionSize: "18GB"
+
+    resources:
+      requests:
+        cpu: 100m
+        memory: 512Mi
+      limits:
+        cpu: 500m
+        memory: 2Gi
+
+grafana:
+  enabled: true
+
+  persistence:
+    enabled: true
+    size: 5Gi
+
+  resources:
+    requests:
+      cpu: 50m
+      memory: 128Mi
+    limits:
+      cpu: 300m
+      memory: 512Mi
+
+nodeExporter:
+  enabled: true
+
+kubeStateMetrics:
+  enabled: true
+
+kubeEtcd:
+  enabled: false
+kubeControllerManager:
+  enabled: false
+kubeScheduler:
+  enabled: false
+kubeProxy:
+  enabled: false