Don't require ssl in keycloak when running in DEV mode.

Author: lmarini

scripts/keycloak/clowder-realm-dev.json

@@ -26,7 +26,7 @@
   "oauth2DeviceCodeLifespan": 600,
   "oauth2DevicePollingInterval": 5,
   "enabled": true,
-  "sslRequired": "external",
+  "sslRequired": "NONE",
   "registrationAllowed": true,
   "registrationEmailAsUsername": true,
   "rememberMe": false,