example & example validation cleanup

hyperglass/configuration/models/opengraph.py

@@ -35,7 +35,7 @@ class OpenGraph(HyperglassModel):
         supported_extensions = (".jpg", ".jpeg", ".png")
         if (
             values["image"] is not None
-            and values["image"].suffix not in supported_extensions
+            and Path(values["image"]).suffix not in supported_extensions
         ):
             raise ValueError(
                 "OpenGraph image must be one of {e}".format(

hyperglass/configuration/models/web.py

@@ -204,6 +204,7 @@ class DnsOverHttps(HyperglassLevel3):
     """Validation model for DNS over HTTPS resolution."""
 
     name: constr(regex="|".join(DNS_OVER_HTTPS.keys())) = "cloudflare"
+    url: StrictStr = ""
 
     @root_validator
     def validate_dns(cls, values):