We can move to postgres whilst HA is low load

Signed-off-by: Martyn Ranyard <m@rtyn.berlin>

apps-kustomized/home-assistant/postgres.yaml

@@ -0,0 +1,18 @@
+apiVersion: "acid.zalan.do/v1"
+kind: postgresql
+metadata:
+  name: homeassistant-postgres
+spec:
+  teamId: homeassistant 
+  volume:
+    size: 1Gi
+    storageClass: local-path
+  numberOfInstances: 1
+  users:
+    homeassistant:
+    - superuser
+    - createdb
+  databases:
+    homeassistant: homeassistant  # dbname: owner
+  postgresql:
+    version: "15"