feat(postgres): add shared database deployments

postgres/k8s/network-policy.yaml

@@ -0,0 +1,28 @@
+apiVersion: networking.k8s.io/v1
+kind: NetworkPolicy
+metadata:
+  name: postgres-ingress
+  namespace: database
+spec:
+  podSelector:
+    matchLabels:
+      app.kubernetes.io/name: postgres
+  policyTypes:
+    - Ingress
+  ingress:
+    - from:
+        - namespaceSelector:
+            matchLabels:
+              kubernetes.io/metadata.name: authentik
+        - namespaceSelector:
+            matchLabels:
+              kubernetes.io/metadata.name: gitea
+        - namespaceSelector:
+            matchLabels:
+              kubernetes.io/metadata.name: netronome
+        - namespaceSelector:
+            matchLabels:
+              kubernetes.io/metadata.name: penpot
+      ports:
+        - protocol: TCP
+          port: 5432