wip: public postgres many fixes and refactoring to have a more cohesive routing management

examples/public_postgres/src/main.rs

@@ -0,0 +1,34 @@
+use harmony::{
+    inventory::Inventory,
+    modules::{network::TlsPassthroughScore, postgresql::PostgreSQLScore},
+    topology::{K8sAnywhereTopology, TlsRoute},
+};
+
+#[tokio::main]
+async fn main() {
+    let namespace = "harmony-postgres-example".to_string();
+    let postgresql = PostgreSQLScore {
+        name: "harmony-postgres-example".to_string(), // Override default name
+        namespace: namespace.clone(),
+        ..Default::default() // Use harmony defaults, they are based on CNPG's default values :
+                             // "default" namespace, 1 instance, 1Gi storage
+    };
+
+    let tls_passthrough = TlsPassthroughScore {
+        route: TlsRoute {
+            hostname: "postgres.example.com".to_string(), // CNPG creates a -rw service for read-write endpoint
+            backend: format!("{}-rw", postgresql.name),   // Public hostname for TLS SNI
+            namespace: namespace.clone(),
+            target_port: 5432, // PostgreSQL default port
+        },
+    };
+
+    harmony_cli::run(
+        Inventory::autoload(),
+        K8sAnywhereTopology::from_env(),
+        vec![Box::new(postgresql), Box::new(tls_passthrough)],
+        None,
+    )
+    .await
+    .unwrap();
+}