add listener routes for internal service proxying (#793)

crates/brightstaff/src/handlers/agent_selector.rs

@@ -194,6 +194,7 @@ mod tests {
         Listener {
             name: name.to_string(),
             agents: Some(agents),
+            routes: None,
             port: 8080,
             router: None,
         }

crates/brightstaff/src/handlers/integration_tests.rs

@@ -74,6 +74,7 @@ mod tests {
         let listener = Listener {
             name: "test-listener".to_string(),
             agents: Some(vec![agent_pipeline.clone()]),
+            routes: None,
             port: 8080,
             router: None,
         };

crates/common/src/configuration.rs

@@ -36,11 +36,18 @@ pub struct AgentFilterChain {
     pub filter_chain: Option<Vec<String>>,
 }
 
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct ListenerRoute {
+    pub path_prefix: String,
+    pub upstream: String,
+}
+
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub struct Listener {
     pub name: String,
     pub router: Option<String>,
     pub agents: Option<Vec<AgentFilterChain>>,
+    pub routes: Option<Vec<ListenerRoute>>,
     pub port: u16,
 }