added listing all running containers

WatcherAgent/src/docker/mod.rs

@@ -1,12 +1,19 @@
 pub mod container;
+pub mod serverclientcomm;
 
-//use std::error::Error;
+use std::error::Error;
 use crate::models::DockerContainer;
 
 #[derive(Debug, Clone)]
 pub struct DockerInfo {
-    pub number: u16,
-    pub net_in_total: f64,
-    pub net_out_total: f64,
-    pub dockers: Vec<DockerContainer>,
+    pub number: Option<u16>,
+    pub net_in_total: Option<f64>,
+    pub net_out_total: Option<f64>,
+    pub dockers: Option<Vec<DockerContainer>>,
+}
+
+impl DockerInfo {
+    pub async fn collect() -> Result<Self, Box<dyn Error + Send + Sync>> {
+        Ok(Self { number: None, net_in_total: None, net_out_total: None, dockers: None })
+    }
 }