added image screening for current container

WatcherAgent/src/serverclientcomm.rs

@@ -1,8 +1,7 @@
 use crate::models::ServerMessage;
 
 use bollard::Docker;
-use bollard::query_parameters::CreateImageOptions;
-use bollard::query_parameters::RestartContainerOptions;
+use bollard::query_parameters::{CreateImageOptions, RestartContainerOptions, InspectContainerOptions};
 use futures_util::StreamExt;
 
 pub fn parse_message(raw: &str) -> ServerMessage {
@@ -53,6 +52,46 @@ pub async fn update_docker_image(docker: &Docker, image: &str) {
     restart_container(docker).await;
 }
 
+pub async fn get_current_image(docker: &Docker) -> Option<String> {
+    // Get the current container ID from /proc/self/cgroup
+    let container_id = match std::fs::read_to_string("/proc/self/cgroup") {
+        Ok(content) => {
+            content
+                .lines()
+                .find_map(|line| {
+                    if line.contains("docker") {
+                        line.split('/').last().map(|s| s.trim().to_string())
+                    } else {
+                        None
+                    }
+                })
+        }
+        Err(e) => {
+            eprintln!("Error reading cgroup file: {}", e);
+            return None;
+        }
+    };
+
+    let container_id = match container_id {
+        Some(id) => id,
+        None => {
+            eprintln!("Could not find container ID in cgroup");
+            return None;
+        }
+    };
+
+    // Inspect the current container to get its image
+    match docker.inspect_container(&container_id, None::<InspectContainerOptions>).await {
+        Ok(container_info) => {
+            container_info.config.map(|config| config.image.unwrap_or_else(|| "unknown".to_string()))
+        }
+        Err(e) => {
+            eprintln!("Error inspecting container: {}", e);
+            None
+        }
+    }
+}
+
 pub async fn restart_container(docker: &Docker) {
     if let Ok(container_id) = std::env::var("HOSTNAME") {
         println!("Restarting container {}", container_id);