fix(tls) Add post render script to add non-www hostname

The python script add katenary.io without "www" to generate the
certificate and to be able to accept https://katenary.io to make the
redirection.

post-render.py

@@ -0,0 +1,17 @@
+#!/bin/env python
+import sys
+
+import yaml
+
+if __name__ == "__main__":
+    # get stdin content
+    resources = list(yaml.safe_load_all(sys.stdin))
+    ingresses = [r for r in resources if r["kind"] == "Ingress"]
+    for ingress in ingresses:
+        tls = ingress.get("spec", {}).get("tls", [])
+        for tls_entry in tls:
+            hosts = {h for h in tls_entry.get("hosts", []) if h.startswith("www.")}
+            for h in hosts:
+                tls_entry["hosts"].append(h[4:])
+
+    print(yaml.dump_all(resources))