allow service names with - in them in proxy

src/proxy.rs

@@ -69,8 +69,9 @@ impl ActiveInstances {
                     80,
                 ),
                 // service with instance
-                2 => {
-                    let (name, service_name) = name.rsplit_once('-').unwrap();
+                2.. => {
+                    let service_name = name.splitn(3, '-').last()?;
+                    let name = &name[0..(name.len() - service_name.len() - 1)];
                     let cloud = Cloud::get_by_filter(&self.docker, Some(name.into()), &self.config)
                         .await
                         .ok()?;