Added custom tls cert support

modoboa_installer/utils.py

@@ -316,6 +316,19 @@ def get_entry_value(entry, interactive):
 
         if entry.get("values") and user_value != "":
             user_value = values[int(user_value)]
+
+        condition = (
+            entry.get("value_return") and
+            user_value in entry.get("value_return")
+            )
+        if condition:
+            error(f"{user_value} cannot be set interactively, "
+                  "Please configure installer.cfg manually by running "
+                  "'python3 run.py ----stop-after-configfile-check domain'. "
+                  "Check modoboa-installer Readme for more information."
+                  )
+            sys.exit(1)
+
     return user_value if user_value else default_value