feat(cluster): update existing traefik middlewares and add cloudflare-only middleware

Signed-off-by: Devin Buhl <devin@buhl.casa>

cluster/apps/networking/traefik/middlewares/internal-only.yaml

@@ -0,0 +1,22 @@
+---
+apiVersion: traefik.containo.us/v1alpha1
+kind: Middleware
+metadata:
+  name: internal-ips
+  namespace: networking
+spec:
+  ipWhiteList:
+    sourceRange:
+      - 10.0.0.0/8
+      - 172.16.0.0/12
+      - 192.168.0.0/16
+---
+apiVersion: traefik.containo.us/v1alpha1
+kind: Middleware
+metadata:
+  name: internal-only
+  namespace: networking
+spec:
+  chain:
+    middlewares:
+      - name: internal-ips