add warning for interactiveSudo usage & update schema

interface.json

@@ -35,6 +35,9 @@
                 },
                 "tempPath": {
                     "type": "string"
+                },
+                "interactiveSudo": {
+                    "type": "boolean"
                 }
             }
         },

src/cli.rs

@@ -544,14 +544,16 @@ async fn run_deploy(
         let mut deploy_defs = deploy_data.defs()?;
 
         if node.generic_settings.interactive_sudo.unwrap_or(false) {
-            info!("Interactive sudo is enabled, you will be prompted for the sudo password for {}.", node.node_settings.hostname);
+            warn!("Interactive sudo is enabled! Using a sudo password is less secure than correctly configured SSH keys.\nPlease use keys in production environments.");
+            info!("You will now be prompted for the sudo password for {}.", node.node_settings.hostname);
             let sudo_password = rpassword::prompt_password(format!("(sudo for {}) Password: ", node.node_settings.hostname)).unwrap_or("".to_string());
 
             deploy_defs.sudo_password = Some(sudo_password);
-
+
+            // this instructs sudo to hide the password prompt and accept input from stdin
             if let Some(original) = deploy_defs.sudo.clone()  {
                 if !original.contains("-S") {
-                    deploy_defs.sudo = Some(format!("{} -S -p \"\"", original));
+                    deploy_defs.sudo = Some(format!("{} -S -p \"\"", original)); 
                 }
             } else {
                 deploy_defs.sudo = Some("sudo -S -p \"\"".to_string());

src/lib.rs

@@ -451,6 +451,9 @@ pub fn make_deploy_data<'a, 's>(
     if let Some(activation_timeout) = cmd_overrides.activation_timeout {
         merged_settings.activation_timeout = Some(activation_timeout);
     }
+    if let Some(interactive_sudo) = cmd_overrides.interactive_sudo {
+        merged_settings.interactive_sudo = Some(interactive_sudo);
+    }
 
     DeployData {
         node_name,