provider/openstack: Don't log the catalog (#13075)

The OS_DEBUG feature has worked out great, but frequent logging of
the service catalog during client initialization can make logging
very chatty. This commit omits the service catalog in the logs.

builtin/providers/openstack/types.go

@@ -97,7 +97,9 @@ func (lrt *LogRoundTripper) logResponseBody(original io.ReadCloser, headers http
 			return nil, err
 		}
 		debugInfo := lrt.formatJSON(bs.Bytes())
-		log.Printf("[DEBUG] OpenStack Response Body: %s", debugInfo)
+		if debugInfo != "" {
+			log.Printf("[DEBUG] OpenStack Response Body: %s", debugInfo)
+		}
 		return ioutil.NopCloser(strings.NewReader(bs.String())), nil
 	}
 
@@ -127,6 +129,13 @@ func (lrt *LogRoundTripper) formatJSON(raw []byte) string {
 		}
 	}
 
+	// Ignore the catalog
+	if v, ok := data["token"].(map[string]interface{}); ok {
+		if _, ok := v["catalog"]; ok {
+			return ""
+		}
+	}
+
 	pretty, err := json.MarshalIndent(data, "", "  ")
 	if err != nil {
 		log.Printf("[DEBUG] Unable to re-marshal OpenStack JSON: %s", err)