enable prometheus ports, configure prometheus server

manifests/prometheus/ingress.yaml

@@ -0,0 +1,20 @@
+---
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: prometheus
+  namespace: darkdork-dev
+spec:
+  ingressClassName: nginx
+  rules:
+  - host: darkdork.prometheus.lan
+    http:
+      paths:
+      - path: /
+        pathType: Prefix
+        backend:
+          service:
+            name: prometheus
+            port:
+              number: 9090
+---