moved stats into own folder

.gitea/workflows/build.yml

@@ -3,10 +3,8 @@ name: Rust Cross-Platform Build
 on:
   workflow_dispatch:
   push:
-    branches: [ "development", "main", "feature/*", "bugfix/*", "enhancement/*" ]
+    branches: [ "development", "main", "staging" ]
     tags: [ "v*.*.*" ]
-  pull_request:
-    branches: [ "development", "main" ]
 
 env:
   REGISTRY: git.triggermeelmo.com
@@ -76,44 +74,6 @@ jobs:
       #  working-directory: ${{ needs.detect-project.outputs.project-dir }}
       #  run: cargo clippy -- -D warnings
 
-  set-tag:
-    name: Set Tag Name
-    runs-on: ubuntu-latest
-    outputs:
-      tag_name: ${{ steps.set_tag.outputs.tag_name }}
-    steps:
-      - uses: actions/checkout@v4
-
-      - name: Determine next semantic version tag
-        id: set_tag
-        run: |
-          git fetch --tags
-
-          # Find latest tag matching vX.Y.Z
-          latest_tag=$(git tag --list 'v*.*.*' --sort=-v:refname | head -n 1)
-          if [[ -z "$latest_tag" ]]; then
-            major=0
-            minor=0
-            patch=0
-          else
-            version="${latest_tag#v}"
-            IFS='.' read -r major minor patch <<< "$version"
-          fi
-
-          if [[ "${GITHUB_REF}" == "refs/heads/main" ]]; then
-            major=$((major + 1))
-            minor=0
-            patch=0
-          elif [[ "${GITHUB_REF}" == "refs/heads/development" ]]; then
-            minor=$((minor + 1))
-            patch=0
-          else
-            patch=$((patch + 1))
-          fi
-
-          new_tag="v${major}.${minor}.${patch}"
-          echo "tag_name=${new_tag}" >> $GITHUB_OUTPUT
-
 #  audit:
 #    name: Security Audit
 #    needs: [detect-project]
@@ -189,13 +149,65 @@ jobs:
           path: |
             ${{ needs.detect-project.outputs.project-dir }}/target/${{ matrix.target }}/release/${{ needs.detect-project.outputs.project-name }}${{ matrix.os == 'windows' && '.exe' || '' }}
 
+  set-tag:
+    name: Set Tag Name
+    needs: [detect-project, build]
+    #if: ${{ !failure() && !cancelled() && github.event_name != 'pull_request' }}
+    runs-on: ubuntu-latest
+    outputs:
+      tag_name: ${{ steps.set_tag.outputs.tag_name }}
+      should_tag: ${{ steps.set_tag.outputs.should_tag }}
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Determine next semantic version tag
+        id: set_tag
+        run: |
+          git fetch --tags
+
+          # Find latest tag matching vX.Y.Z
+          latest_tag=$(git tag --list 'v*.*.*' --sort=-v:refname | head -n 1)
+          if [[ -z "$latest_tag" ]]; then
+            major=0
+            minor=0
+            patch=0
+          else
+            version="${latest_tag#v}"
+            IFS='.' read -r major minor patch <<< "$version"
+          fi
+
+          if [[ "${GITHUB_REF}" == "refs/heads/main" ]]; then
+            major=$((major + 1))
+            minor=0
+            patch=0
+            new_tag="v${major}.${minor}.${patch}"
+            echo "tag_name=${new_tag}" >> $GITHUB_OUTPUT
+            echo "should_tag=true" >> $GITHUB_OUTPUT
+            echo "Creating new major version tag: ${new_tag}"
+            
+          elif [[ "${GITHUB_REF}" == "refs/heads/development" ]]; then
+            minor=$((minor + 1))
+            patch=0
+            new_tag="v${major}.${minor}.${patch}"
+            echo "tag_name=${new_tag}" >> $GITHUB_OUTPUT
+            echo "should_tag=true" >> $GITHUB_OUTPUT
+            echo "Creating new minor version tag: ${new_tag}"
+            
+          elif [[ "${GITHUB_REF}" == "refs/heads/staging" ]]; then
+            patch=$((patch + 1))
+            new_tag="v${major}.${minor}.${patch}"
+            echo "tag_name=${new_tag}" >> $GITHUB_OUTPUT
+            echo "should_tag=true" >> $GITHUB_OUTPUT
+            echo "Creating new patch version tag: ${new_tag}"
+          fi
+
   docker-build:
     name: Build and Push Docker Image
     needs: [detect-project, build, set-tag]
-    if: |
-      always() && 
+    if: | 
       needs.detect-project.result == 'success' && 
       needs.build.result == 'success' &&
+      needs.set-tag.outputs.should_tag == 'true' &&
       github.event_name != 'pull_request'
     runs-on: ubuntu-latest
     environment: production
@@ -233,9 +245,6 @@ jobs:
   tag:
     name: Create Tag
     needs: [docker-build, build, set-tag]
-    if: |
-      github.event_name == 'push' && 
-      needs.docker-build.result == 'success'
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
@@ -251,13 +260,13 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
+          echo "Creating new tag: ${{ needs.set-tag.outputs.tag_name }}"
           git tag ${{ needs.set-tag.outputs.tag_name }}
           git push origin ${{ needs.set-tag.outputs.tag_name }}
 
-
   summary:
     name: Workflow Summary
-    needs: [test, audit, build, docker-build]
+    needs: [test, build, docker-build]
     if: always()
     runs-on: ubuntu-latest
     steps:

WatcherAgent/src/api.rs

@@ -1,5 +1,3 @@
-
-
 /// # API Module
 ///
 /// This module provides all HTTP communication between WatcherAgent and the backend server.
@@ -14,9 +12,11 @@
 /// These functions are called from the main agent loop and background tasks. All network operations are asynchronous and robust to transient failures.
 use std::time::Duration;
 
-use crate::hardware::HardwareInfo;
-use crate::models::{HeartbeatDto, IdResponse, MetricDto, RegistrationDto, ServerMessage, Acknowledgment};
 use crate::docker::serverclientcomm::handle_server_message;
+use crate::hardware::HardwareInfo;
+use crate::models::{
+    Acknowledgment, HeartbeatDto, IdResponse, MetricDto, RegistrationDto, ServerMessage,
+};
 
 use anyhow::Result;
 use reqwest::{Client, StatusCode};
@@ -57,7 +57,7 @@ pub async fn register_with_server(
 
     // Prepare registration data
     let registration = RegistrationDto {
-        id: server_id,
+        server_id: server_id,
         ip_address: registered_ip.clone(),
         cpu_type: hardware.cpu.name.clone().unwrap_or_default(),
         cpu_cores: (hardware.cpu.cores).unwrap_or_default(),
@@ -68,7 +68,7 @@ pub async fn register_with_server(
     // Try to register (will retry on failure)
     loop {
         println!("Attempting to register with server...");
-        let url = format!("{}/monitoring/register-agent-by-id", base_url);
+        let url = format!("{}/monitoring/hardware-info", base_url);
         match client.post(&url).json(&registration).send().await {
             Ok(resp) if resp.status().is_success() => {
                 println!("✅ Successfully registered with server.");
@@ -108,7 +108,7 @@ async fn get_server_id_by_ip(
         .danger_accept_invalid_certs(true)
         .build()?;
 
-    let url = format!("{}/monitoring/server-id-by-ip?ipAddress={}", base_url, ip);
+    let url = format!("{}/monitoring/register?ipAddress={}", base_url, ip);
 
     loop {
         println!("Attempting to fetch server ID for IP {}...", ip);
@@ -224,10 +224,13 @@ pub async fn send_metrics(
 ///
 /// # Returns
 /// * `Result<(), Box<dyn Error + Send + Sync>>` - Ok if commands are handled successfully.
-pub async fn listening_to_server(docker: &Docker, base_url: &str) -> Result<(), Box<dyn Error + Send + Sync>> {
+pub async fn listening_to_server(
+    docker: &Docker,
+    base_url: &str,
+) -> Result<(), Box<dyn Error + Send + Sync>> {
     let url = format!("{}/api/message", base_url);
     let client = reqwest::Client::new();
-    
+
     loop {
         // Get message from server
         let resp = client.get(&url).send().await;
@@ -238,20 +241,36 @@ pub async fn listening_to_server(docker: &Docker, base_url: &str) -> Result<(),
                     match response.json::<ServerMessage>().await {
                         Ok(msg) => {
                             // Acknowledge receipt immediately
-                            if let Err(e) = send_acknowledgment(&client, base_url, &msg.message_id, "received", "Message received successfully").await {
+                            if let Err(e) = send_acknowledgment(
+                                &client,
+                                base_url,
+                                &msg.message_id,
+                                "received",
+                                "Message received successfully",
+                            )
+                            .await
+                            {
                                 eprintln!("Failed to send receipt acknowledgment: {}", e);
                             }
-                            
+
                             // Handle the message
                             let result = handle_server_message(docker, msg.clone()).await;
-                            
+
                             // Send execution result acknowledgment
                             let (status, details) = match result {
                                 Ok(_) => ("success", "Message executed successfully".to_string()),
                                 Err(e) => ("error", format!("Execution failed: {}", e)),
                             };
-                            
-                            if let Err(e) = send_acknowledgment(&client, base_url, &msg.message_id, status, &details).await {
+
+                            if let Err(e) = send_acknowledgment(
+                                &client,
+                                base_url,
+                                &msg.message_id,
+                                status,
+                                &details,
+                            )
+                            .await
+                            {
                                 eprintln!("Failed to send execution acknowledgment: {}", e);
                             }
                         }
@@ -289,7 +308,7 @@ pub async fn listening_to_server(docker: &Docker, base_url: &str) -> Result<(),
 ///
 /// # Returns
 /// * `Result<(), Box<dyn Error + Send + Sync>>` - Ok if acknowledgment is sent successfully.
-async fn send_acknowledgment(
+pub async fn send_acknowledgment(
     client: &reqwest::Client,
     base_url: &str,
     message_id: &str,
@@ -297,24 +316,50 @@ async fn send_acknowledgment(
     details: &str,
 ) -> Result<(), Box<dyn Error + Send + Sync>> {
     let ack_url = format!("{}/api/acknowledge", base_url);
-    
+
     let acknowledgment = Acknowledgment {
         message_id: message_id.to_string(),
         status: status.to_string(),
         details: details.to_string(),
     };
-    
-    let response = client
-        .post(&ack_url)
-        .json(&acknowledgment)
-        .send()
-        .await?;
-    
+
+    let response = client.post(&ack_url).json(&acknowledgment).send().await?;
+
     if response.status().is_success() {
-        println!("Acknowledgment sent successfully for message {}", message_id);
+        println!(
+            "Acknowledgment sent successfully for message {}",
+            message_id
+        );
     } else {
-        eprintln!("Server returned error for acknowledgment: {}", response.status());
+        eprintln!(
+            "Server returned error for acknowledgment: {}",
+            response.status()
+        );
     }
-    
+
     Ok(())
+}
+
+pub async fn send_docker_metrics(
+    base_url: &str,
+    docker_metrics: &MetricDto,
+) -> Result<(), Box<dyn Error + Send + Sync>> {
+    let client = Client::new();
+    let url = format!("{}/monitoring/docker-metric", base_url);
+    println!("Metrics: {:?}", docker_metrics);
+
+    match client.post(&url).json(&docker_metrics).send().await {
+        Ok(res) => println!(
+            "✅ Sent metrics for server {} | Status: {}",
+            docker_metrics.server_id,
+            res.status()
+        ),
+        Err(err) => eprintln!("❌ Failed to send metrics: {}", err),
+    }
+
+    Ok(())
+}
+
+pub async fn broadcast_docker_containers() {
+    // Placeholder for future implementation
 }

WatcherAgent/src/docker/container.rs

@@ -1,15 +1,17 @@
-
 //! Docker container utilities for WatcherAgent
 //!
 //! Provides functions to list and process Docker containers using the Bollard library.
 //!
-use crate::models::DockerContainer;
+use crate::docker::stats;
+use crate::docker::stats::{ContainerCpuInfo, ContainerNetworkInfo};
+use crate::models::{DockerRegistrationDto, DockerMetricDto, DockerContainer};
 
-use bollard::query_parameters::{ListContainersOptions};
+use bollard::query_parameters::{
+    CreateImageOptions, ListContainersOptions, RestartContainerOptions,
+};
 use bollard::Docker;
-
-
-
+use futures_util::StreamExt;
+use std::error::Error;
 
 /// Returns a list of available Docker containers.
 ///
@@ -18,54 +20,41 @@ use bollard::Docker;
 ///
 /// # Returns
 /// * `Vec<DockerContainer>` - Vector of Docker container info.
-pub async fn get_available_container(docker: &Docker) -> Vec<DockerContainer> {
+pub async fn get_available_containers(docker: &Docker) -> Vec<DockerContainer> {
     println!("=== DOCKER CONTAINER LIST ===");
-    
+
     let options = Some(ListContainersOptions {
         all: true,
         ..Default::default()
     });
-    
+
     let containers_list = match docker.list_containers(options).await {
         Ok(containers) => {
             println!("Available containers ({}):", containers.len());
-            containers.into_iter()
+            containers
+                .into_iter()
                 .filter_map(|container| {
                     container.id.as_ref()?; // Skip if no ID
-                    
+
                     let id = container.id?;
                     let short_id = if id.len() > 12 { &id[..12] } else { &id };
-                    //let short_id: u32 = short_string_id.trim().parse().unwrap();
 
-                    let name = container.names
+                    let name = container
+                        .names
                         .and_then(|names| names.into_iter().next())
                         .map(|name| name.trim_start_matches('/').to_string())
                         .unwrap_or_else(|| "unknown".to_string());
-                    
-                    let image = container.image
+
+                    let image = container
+                        .image
                         .as_ref()
                         .map(|img| img.to_string())
                         .unwrap_or_else(|| "unknown".to_string());
-                    
-                    let status = container.status
-                        .as_ref()
-                        .map(|s| match s.to_lowercase().as_str() {
-                            s if s.contains("up") || s.contains("running") => "running".to_string(),
-                            s if s.contains("exited") || s.contains("stopped") => "stopped".to_string(),
-                            _ => s.to_string(),
-                        })
-                        .unwrap_or_else(|| "unknown".to_string());
-                    
-                    println!("  - ID: {}, Image: {}, Name: {}", short_id, container.image.unwrap(), name);
-                    
+
                     Some(DockerContainer {
-                        ID: short_id.to_string(),
-                        image,
-                        Name: name,
-                        Status: status,
-                        _net_in: 0.0,
-                        _net_out: 0.0,
-                        _cpu_load: 0.0,
+                        id: short_id.to_string(),
+                        image: Some(image),
+                        name: Some(name),
                     })
                 })
                 .collect()
@@ -75,10 +64,96 @@ pub async fn get_available_container(docker: &Docker) -> Vec<DockerContainer> {
             Vec::new()
         }
     };
-    
+
     containers_list
 }
 
+/// Pulls a new Docker image and restarts the current container.
+///
+/// # Arguments
+/// * `docker` - Reference to a Bollard Docker client.
+/// * `image` - The name of the Docker image to pull.
+///
+/// # Returns
+/// * `Result<(), Box<dyn Error + Send + Sync>>` - Ok if updated successfully, error otherwise.
+pub async fn update_docker_image(
+    docker: &Docker,
+    image: &str,
+) -> Result<(), Box<dyn Error + Send + Sync>> {
+    println!("Updating to {}", image);
+
+    // 1. Pull new image
+    let mut stream = docker.create_image(
+        Some(CreateImageOptions {
+            from_image: Some(image.to_string()),
+            ..Default::default()
+        }),
+        None,
+        None,
+    );
+
+    // Use the stream with proper trait bounds
+    while let Some(result) = StreamExt::next(&mut stream).await {
+        match result {
+            Ok(progress) => {
+                if let Some(status) = progress.status {
+                    println!("Pull status: {}", status);
+                }
+            }
+            Err(e) => {
+                eprintln!("Error pulling image: {}", e);
+                break;
+            }
+        }
+    }
+
+    // 2. Restart the current container
+    let options = Some(ListContainersOptions {
+        all: true,
+        ..Default::default()
+    });
+    let container_id = docker
+        .list_containers(options)
+        .await?
+        .into_iter()
+        .find_map(|c| {
+            c.image
+                .as_ref()
+                .and_then(|img| if img == image { c.id } else { None })
+        });
+    let _ = restart_container(docker, &container_id.unwrap()).await;
+
+    Ok(())
+}
+
+/// Restarts the agent's own Docker container.
+///
+/// # Arguments
+/// * `docker` - Reference to a Bollard Docker client.
+///
+/// # Returns
+/// * `Result<(), Box<dyn Error + Send + Sync>>` - Ok if restarted successfully, error otherwise.
+pub async fn restart_container(
+    docker: &Docker,
+    container_id: &str,
+) -> Result<(), Box<dyn Error + Send + Sync>> {
+    println!("Restarting container {}", container_id);
+    if let Err(e) = docker
+        .restart_container(
+            &container_id.to_string(),
+            Some(RestartContainerOptions {
+                signal: None,
+                t: Some(0),
+            }),
+        )
+        .await
+    {
+        eprintln!("Failed to restart container: {}", e);
+    }
+
+    Ok(())
+}
+
 /*
 /// Extracts a Docker container ID from a string line.
 ///
@@ -90,4 +165,48 @@ pub async fn get_available_container(docker: &Docker) -> Vec<DockerContainer> {
 pub fn extract_client_container_id(line: &str) -> Option<String> {
     // ...existing code...
 }
-*/
+*/
+
+/// Gets network statistics for a specific container
+pub async fn get_network_stats(
+    docker: &Docker,
+    container_id: &str,
+) -> Result<ContainerNetworkInfo, Box<dyn Error + Send + Sync>> {
+    let (_, net_info, _) = stats::get_single_container_stats(docker, container_id).await?;
+
+    if let Some(net_info) = net_info {
+        Ok(net_info)
+    } else {
+        // Return default network info if not found
+        Ok(ContainerNetworkInfo {
+            container_id: container_id.to_string(),
+            rx_bytes: 0,
+            tx_bytes: 0,
+            rx_packets: 0,
+            tx_packets: 0,
+            rx_errors: 0,
+            tx_errors: 0,
+        })
+    }
+}
+
+/// Gets CPU statistics for a specific container
+pub async fn get_cpu_stats(
+    docker: &Docker,
+    container_id: &str,
+) -> Result<ContainerCpuInfo, Box<dyn Error + Send + Sync>> {
+    let (cpu_info, _, _) = stats::get_single_container_stats(docker, container_id).await?;
+
+    if let Some(cpu_info) = cpu_info {
+        Ok(cpu_info)
+    } else {
+        // Return default CPU info if not found
+        Ok(ContainerCpuInfo {
+            container_id: container_id.to_string(),
+            cpu_usage_percent: 0.0,
+            system_cpu_usage: 0,
+            container_cpu_usage: 0,
+            online_cpus: 1,
+        })
+    }
+}

WatcherAgent/src/docker/mod.rs

@@ -1,4 +1,3 @@
-
 /// # Docker Module
 ///
 /// This module provides Docker integration for WatcherAgent, including container enumeration, statistics, and lifecycle management.
@@ -10,71 +9,131 @@
 ///
 pub mod container;
 pub mod serverclientcomm;
+pub mod stats;
 
+use crate::models::{DockerRegistrationDto, DockerMetricDto, DockerContainer};
+use bollard::{query_parameters::InspectContainerOptions, Docker};
 use std::error::Error;
-use crate::models::DockerContainer;
 
-
-/// Aggregated Docker statistics for all managed containers.
-///
-/// # Fields
-/// - `number`: Number of running containers (optional)
-/// - `net_in_total`: Total network receive rate in **bytes per second (B/s)** (optional)
-/// - `net_out_total`: Total network transmit rate in **bytes per second (B/s)** (optional)
-/// - `dockers`: List of [`DockerContainer`] statistics (optional)
+/// Main Docker manager that holds the Docker client and provides all operations
 #[derive(Debug, Clone)]
-pub struct DockerInfo {
-    pub number: Option<u16>,
-    pub net_in_total: Option<f64>,
-    pub net_out_total: Option<f64>,
-    pub dockers: Option<Vec<DockerContainer>>,
+pub struct DockerManager {
+    pub docker: Docker,
 }
 
-
-impl DockerInfo {
-    /// Collects Docker statistics for all managed containers.
-    ///
-    /// # Returns
-    /// * `Result<DockerInfo, Box<dyn Error + Send + Sync>>` - Aggregated Docker statistics or error if collection fails.
-    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 })
+impl Default for DockerManager {
+    fn default() -> Self {
+        Self {
+            docker: Docker::connect_with_local_defaults()
+                .unwrap_or_else(|e| panic!("Failed to create default Docker connection: {}", e)),
+        }
     }
 }
 
+impl DockerManager {
+    /// Creates a new DockerManager instance
+    pub fn new() -> Result<Self, Box<dyn Error + Send + Sync>> {
+        let docker = Docker::connect_with_local_defaults()
+            .map_err(|e| format!("Failed to connect to Docker: {}", e))?;
 
+        Ok(Self { docker })
+    }
+
+    /// Creates a DockerManager instance with optional Docker connection
+    pub fn new_optional() -> Option<Self> {
+        Docker::connect_with_local_defaults()
+            .map(|docker| Self { docker })
+            .ok()
+    }
+
+    /// Finds the Docker container running the agent by image name
+    pub async fn get_client_container(
+        &self,
+    ) -> Result<Option<DockerContainer>, Box<dyn Error + Send + Sync>> {
+        let containers = container::get_available_containers(&self.docker).await;
+        let client_image = "watcher-agent";
+
+        Ok(containers
+            .into_iter()
+            .find(|c| c.clone().image.unwrap().contains(client_image))
+            .map(|container| DockerContainer {
+                id: container.id,
+                image: container.image,
+                name: container.name,
+
+            }))
+    }
+
+    /// Gets the current client version (image name) if running in Docker
+    pub async fn get_client_version(&self) -> String {
+        match self.get_client_container().await {
+            Ok(Some(container)) => container.image.clone().unwrap().split(':').next().unwrap_or("unknown").to_string(),
+            Ok(None) => {
+                println!("Warning: No WatcherAgent container found");
+                "unknown".to_string()
+            }
+            Err(e) => {
+                println!("Warning: Could not get current image version: {}", e);
+                "unknown".to_string()
+            }
+        }
+    }
+
+    /// Checks if Docker is available and the agent is running in a container
+    pub async fn is_dockerized(&self) -> bool {
+        self.get_client_container()
+            .await
+            .map(|c| c.is_some())
+            .unwrap_or(false)
+    }
+
+    /// Gets all available containers as DTOs for registration
+    pub async fn get_containers_for_registration(
+        &self,
+    ) -> Result<Vec<DockerContainer>, Box<dyn Error + Send + Sync>> {
+        let containers = container::get_available_containers(&self.docker).await;
+
+        Ok(containers
+            .into_iter()
+            .map(|container| DockerContainer {
+                id: container.id,
+                image: container.image,
+                name: container.name,
+            })
+            .collect())
+    }
+
+    
+
+    /// Gets the number of running containers
+    pub async fn get_container_count(&self) -> Result<usize, Box<dyn Error + Send + Sync>> {
+        let containers = container::get_available_containers(&self.docker).await;
+        Ok(containers.len())
+    }
+
+    /// Restarts a specific container by ID
+    pub async fn restart_container(
+        &self,
+        container_id: &str,
+    ) -> Result<(), Box<dyn Error + Send + Sync>> {
+        container::restart_container(&self.docker, container_id).await
+    }
+}
+
+// Keep these as utility functions if needed, but they should use DockerManager internally
 impl DockerContainer {
-    /*
-    /// Restarts the specified Docker container by ID.
-    ///
-    /// # Arguments
-    /// * `docker` - Reference to a Bollard Docker client
-    ///
-    /// # Returns
-    /// * `Result<(), Box<dyn Error + Send + Sync>>` - Ok if restarted successfully, error otherwise.
-    pub async fn restart_container(docker: &Docker) -> Result<(), Box<dyn Error + Send + Sync>> {
-        // ...existing code...
-    }
-    */
-
-    /// Returns the container ID for a given [`DockerContainer`].
-    ///
-    /// # Arguments
-    /// * `container` - Reference to a [`DockerContainer`]
-    ///
-    /// # Returns
-    /// * `Result<u32, Box<dyn Error + Send + Sync>>` - Container ID as integer.
-    pub async fn get_docker_container_id(container: DockerContainer) -> Result<String, Box<dyn Error + Send + Sync>> {
-        Ok(container.ID)
+    /// Returns the container ID
+    pub fn id(&self) -> &str {
+        &self.id
     }
 
-    /// Returns the image name for a given [`DockerContainer`].
-    ///
-    /// # Arguments
-    /// * `container` - Reference to a [`DockerContainer`]
-    ///
-    /// # Returns
-    /// * `Result<String, Box<dyn Error + Send + Sync>>` - Image name as string.
-    pub async fn get_docker_container_image(container: DockerContainer) -> Result<String, Box<dyn Error + Send + Sync>> {
-        Ok(container.image)
+    /// Returns the image name
+    pub fn image(&self) -> &str {
+        &self.image.as_deref().unwrap_or("unknown")
     }
-}
+
+    /// Returns the container name
+    pub fn name(&self) -> &str {
+        &self.name.as_deref().unwrap_or("unknown")
+    }
+}

WatcherAgent/src/docker/serverclientcomm.rs

@@ -1,15 +1,13 @@
-
 //! Server-client communication utilities for WatcherAgent
 //!
 //! Handles server commands, Docker image updates, and container management using the Bollard library.
 //!
-use crate::models::{DockerContainer, ServerMessage};
-use crate::docker::container::{get_available_container};
+use crate::models::ServerMessage;
 
-use std::error::Error;
-use bollard::Docker;
+use super::container::{restart_container, update_docker_image};
 use bollard::query_parameters::{CreateImageOptions, RestartContainerOptions};
-use futures_util::StreamExt;
+use bollard::Docker;
+use std::error::Error;
 
 /// Handles a message from the backend server and dispatches the appropriate action.
 ///
@@ -19,7 +17,10 @@ use futures_util::StreamExt;
 ///
 /// # Returns
 /// * `Result<(), Box<dyn Error + Send + Sync>>` - Ok if handled successfully, error otherwise.
-pub async fn handle_server_message(docker: &Docker, msg: ServerMessage) -> Result<(), Box<dyn Error + Send + Sync>> {
+pub async fn handle_server_message(
+    docker: &Docker,
+    msg: ServerMessage,
+) -> Result<(), Box<dyn Error + Send + Sync>> {
     let msg = msg.clone();
     println!("Handling server message: {:?}", msg);
 
@@ -36,10 +37,14 @@ pub async fn handle_server_message(docker: &Docker, msg: ServerMessage) -> Resul
             }
         }
         "restart_container" => {
-            println!("Received restart container command");
-            // Call your restart_container function here
-            restart_container(docker).await?;
-            Ok(())
+            if let Some(image_name) = msg.data.get("image").and_then(|v| v.as_str()) {
+                println!("Received restart command for image: {}", image_name);
+                // Call your update_docker_image function here
+                update_docker_image(docker, image_name).await?;
+                Ok(())
+            } else {
+                Err("Missing image name in update message".into())
+            }
         }
         "stop_agent" => {
             println!("Received stop agent command");
@@ -52,87 +57,3 @@ pub async fn handle_server_message(docker: &Docker, msg: ServerMessage) -> Resul
         }
     }
 }
-
-/// Pulls a new Docker image and restarts the current container.
-///
-/// # Arguments
-/// * `docker` - Reference to a Bollard Docker client.
-/// * `image` - The name of the Docker image to pull.
-///
-/// # Returns
-/// * `Result<(), Box<dyn Error + Send + Sync>>` - Ok if updated successfully, error otherwise.
-pub async fn update_docker_image(docker: &Docker, image: &str) -> Result<(), Box<dyn Error + Send + Sync>> {
-    println!("Updating to {}", image);
-
-    // 1. Pull new image
-    let mut stream = docker.create_image(
-        Some(CreateImageOptions {
-            from_image: Some(image.to_string()),
-            ..Default::default()
-        }),
-        None,
-        None,
-    );
-
-    // Use the stream with proper trait bounds
-    while let Some(result) = StreamExt::next(&mut stream).await {
-        match result {
-            Ok(progress) => {
-                if let Some(status) = progress.status {
-                    println!("Pull status: {}", status);
-                }
-            }
-            Err(e) => {
-                eprintln!("Error pulling image: {}", e);
-                break;
-            }
-        }
-    }
-
-    // 2. Restart the current container
-    let _ = restart_container(docker).await;
-
-    Ok(())
-}
-
-/// Finds the Docker container running the agent by image name.
-///
-/// # Arguments
-/// * `docker` - Reference to a Bollard Docker client.
-///
-/// # Returns
-/// * `Result<Option<DockerContainer>, Box<dyn Error + Send + Sync>>` - The agent's container info if found.
-pub async fn get_client_container(docker: &Docker) -> Result<Option<DockerContainer>, Box<dyn Error + Send + Sync>> {
-    let containers = get_available_container(docker).await;
-    let client_image = "watcher-agent";
-    
-    // Find container with the specific image
-    if let Some(container) = containers.iter().find(|c| c.image == client_image) {
-        Ok(Some(container.clone()))
-    } else {
-        Ok(None)
-    }
-}
-
-/// Restarts the agent's own Docker container.
-///
-/// # Arguments
-/// * `docker` - Reference to a Bollard Docker client.
-///
-/// # Returns
-/// * `Result<(), Box<dyn Error + Send + Sync>>` - Ok if restarted successfully, error otherwise.
-pub async fn restart_container(docker: &Docker) -> Result<(), Box<dyn Error + Send + Sync>> {
-    if let Ok(Some(container)) = get_client_container(docker).await {
-        let container_id = container.clone().ID;
-        println!("Restarting container {}", container_id);
-        if let Err(e) = docker.restart_container(&container_id.to_string(), Some(RestartContainerOptions { signal: None, t: Some(0) }))
-            .await
-        {
-            eprintln!("Failed to restart container: {}", e);
-        }
-    } else {
-        eprintln!("No container ID found (HOSTNAME not set?)");
-    }
-
-    Ok(())
-}

WatcherAgent/src/docker/stats/cpu.rs

@@ -0,0 +1,96 @@
+use super::ContainerCpuInfo;
+use bollard::query_parameters::{ListContainersOptions, StatsOptions};
+use bollard::Docker;
+use futures_util::stream::TryStreamExt;
+use std::error::Error;
+
+/// Get CPU statistics for all containers
+pub async fn get_all_containers_cpu_stats(
+    docker: &Docker,
+) -> Result<Vec<ContainerCpuInfo>, Box<dyn Error + Send + Sync>> {
+    let containers = docker
+        .list_containers(Some(ListContainersOptions {
+            all: true,
+            ..Default::default()
+        }))
+        .await?;
+
+    let mut cpu_infos = Vec::new();
+
+    for container in containers {
+        let id = container.id.unwrap_or_default();
+
+        // Skip if no ID
+        if id.is_empty() {
+            continue;
+        }
+
+        if let Some(cpu_info) = get_single_container_cpu_stats(docker, &id).await? {
+            cpu_infos.push(cpu_info);
+        }
+    }
+
+    Ok(cpu_infos)
+}
+
+/// Get CPU statistics for a specific container
+pub async fn get_single_container_cpu_stats(
+    docker: &Docker,
+    container_id: &str,
+) -> Result<Option<ContainerCpuInfo>, Box<dyn Error + Send + Sync>> {
+    let mut stats_stream = docker.stats(
+        container_id,
+        Some(StatsOptions {
+            stream: false,
+            one_shot: true,
+        }),
+    );
+
+    if let Some(stats) = stats_stream.try_next().await? {
+        if let (Some(cpu_stats), Some(precpu_stats)) = (&stats.cpu_stats, &stats.precpu_stats) {
+            if let (Some(cpu_usage), Some(pre_cpu_usage)) =
+                (&cpu_stats.cpu_usage, &precpu_stats.cpu_usage)
+            {
+                let cpu_delta = cpu_usage
+                    .total_usage
+                    .unwrap_or(0)
+                    .saturating_sub(pre_cpu_usage.total_usage.unwrap_or(0));
+
+                let system_delta = cpu_stats
+                    .system_cpu_usage
+                    .unwrap_or(0)
+                    .saturating_sub(precpu_stats.system_cpu_usage.unwrap_or(0));
+
+                let online_cpus = cpu_stats.online_cpus.unwrap_or(1);
+
+                let cpu_percent = if system_delta > 0 && online_cpus > 0 {
+                    (cpu_delta as f64 / system_delta as f64) * online_cpus as f64 * 100.0
+                } else {
+                    0.0
+                };
+
+                return Ok(Some(ContainerCpuInfo {
+                    container_id: container_id.to_string(),
+                    cpu_usage_percent: cpu_percent,
+                    system_cpu_usage: cpu_stats.system_cpu_usage.unwrap_or(0),
+                    container_cpu_usage: cpu_usage.total_usage.unwrap_or(0),
+                    online_cpus,
+                }));
+            }
+        }
+    }
+
+    Ok(None)
+}
+
+/// Get average CPU usage across all containers
+pub async fn get_average_cpu_usage(docker: &Docker) -> Result<f64, Box<dyn Error + Send + Sync>> {
+    let cpu_infos = get_all_containers_cpu_stats(docker).await?;
+
+    if cpu_infos.is_empty() {
+        return Ok(0.0);
+    }
+
+    let total_cpu: f64 = cpu_infos.iter().map(|cpu| cpu.cpu_usage_percent).sum();
+    Ok(total_cpu / cpu_infos.len() as f64)
+}

WatcherAgent/src/docker/stats/mod.rs

@@ -0,0 +1,77 @@
+pub mod cpu;
+pub mod network;
+pub mod ram;
+
+use serde::{Deserialize, Serialize};
+
+#[derive(Debug, Serialize, Deserialize, Clone)]
+pub struct ContainerCpuInfo {
+    pub container_id: String,
+    pub cpu_usage_percent: f64,
+    pub system_cpu_usage: u64,
+    pub container_cpu_usage: u64,
+    pub online_cpus: u32,
+}
+
+#[derive(Debug, Serialize, Deserialize, Clone)]
+pub struct ContainerNetworkInfo {
+    pub container_id: String,
+    pub rx_bytes: u64,
+    pub tx_bytes: u64,
+    pub rx_packets: u64,
+    pub tx_packets: u64,
+    pub rx_errors: u64,
+    pub tx_errors: u64,
+}
+
+#[derive(Debug, Serialize, Deserialize, Clone)]
+pub struct ContainerMemoryInfo {
+    pub container_id: String,
+    pub memory_usage: u64,
+    pub memory_limit: u64,
+    pub memory_usage_percent: f64,
+}
+
+use bollard::Docker;
+use std::error::Error;
+
+/// Get container statistics for all containers using an existing Docker client
+pub async fn get_container_stats(
+    docker: &Docker,
+) -> Result<(Vec<ContainerCpuInfo>, Vec<ContainerNetworkInfo>, Vec<ContainerMemoryInfo>), Box<dyn Error + Send + Sync>> {
+    let cpu_infos = cpu::get_all_containers_cpu_stats(docker).await?;
+    let net_infos = network::get_all_containers_network_stats(docker).await?;
+    let mem_infos = ram::get_all_containers_memory_stats(docker).await?;
+
+    Ok((cpu_infos, net_infos, mem_infos))
+}
+
+/// Get container statistics for a specific container
+pub async fn get_single_container_stats(
+    docker: &Docker,
+    container_id: &str,
+) -> Result<(Option<ContainerCpuInfo>, Option<ContainerNetworkInfo>, Option<ContainerMemoryInfo>), Box<dyn Error + Send + Sync>>
+{
+    let cpu_info = cpu::get_single_container_cpu_stats(docker, container_id).await?;
+    let net_info = network::get_single_container_network_stats(docker, container_id).await?;
+    let mem_info = ram::get_single_container_memory_stats(docker, container_id).await?;
+
+    Ok((cpu_info, net_info, mem_info))
+}
+
+/// Get total network statistics across all containers
+pub async fn get_total_network_stats(
+    docker: &Docker,
+) -> Result<(u64, u64), Box<dyn Error + Send + Sync>> {
+    network::get_total_network_stats(docker).await
+}
+
+/// Get average CPU usage across all containers
+pub async fn get_average_cpu_usage(docker: &Docker) -> Result<f64, Box<dyn Error + Send + Sync>> {
+    cpu::get_average_cpu_usage(docker).await
+}
+
+/// Get total memory usage across all containers
+pub async fn get_total_memory_usage(docker: &Docker) -> Result<u64, Box<dyn Error + Send + Sync>> {
+    ram::get_total_memory_usage(docker).await
+}

WatcherAgent/src/docker/stats/network.rs

@@ -0,0 +1,79 @@
+use super::ContainerNetworkInfo;
+use bollard::query_parameters::{ListContainersOptions, StatsOptions};
+use bollard::Docker;
+use futures_util::stream::TryStreamExt;
+use std::error::Error;
+
+/// Get network statistics for all containers
+pub async fn get_all_containers_network_stats(
+    docker: &Docker,
+) -> Result<Vec<ContainerNetworkInfo>, Box<dyn Error + Send + Sync>> {
+    let containers = docker
+        .list_containers(Some(ListContainersOptions {
+            all: true,
+            ..Default::default()
+        }))
+        .await?;
+
+    let mut net_infos = Vec::new();
+
+    for container in containers {
+        let id = container.id.unwrap_or_default();
+
+        // Skip if no ID
+        if id.is_empty() {
+            continue;
+        }
+
+        if let Some(net_info) = get_single_container_network_stats(docker, &id).await? {
+            net_infos.push(net_info);
+        }
+    }
+
+    Ok(net_infos)
+}
+
+/// Get network statistics for a specific container
+pub async fn get_single_container_network_stats(
+    docker: &Docker,
+    container_id: &str,
+) -> Result<Option<ContainerNetworkInfo>, Box<dyn Error + Send + Sync>> {
+    let mut stats_stream = docker.stats(
+        container_id,
+        Some(StatsOptions {
+            stream: false,
+            one_shot: true,
+        }),
+    );
+
+    if let Some(stats) = stats_stream.try_next().await? {
+        if let Some(networks) = stats.networks {
+            // Take the first network interface (usually eth0)
+            if let Some((_name, net)) = networks.into_iter().next() {
+                return Ok(Some(ContainerNetworkInfo {
+                    container_id: container_id.to_string(),
+                    rx_bytes: net.rx_bytes.unwrap(),
+                    tx_bytes: net.tx_bytes.unwrap(),
+                    rx_packets: net.rx_packets.unwrap(),
+                    tx_packets: net.tx_packets.unwrap(),
+                    rx_errors: net.rx_errors.unwrap(),
+                    tx_errors: net.tx_errors.unwrap(),
+                }));
+            }
+        }
+    }
+
+    Ok(None)
+}
+
+/// Get total network statistics across all containers
+pub async fn get_total_network_stats(
+    docker: &Docker,
+) -> Result<(u64, u64), Box<dyn Error + Send + Sync>> {
+    let net_infos = get_all_containers_network_stats(docker).await?;
+
+    let total_rx: u64 = net_infos.iter().map(|net| net.rx_bytes).sum();
+    let total_tx: u64 = net_infos.iter().map(|net| net.tx_bytes).sum();
+
+    Ok((total_rx, total_tx))
+}

WatcherAgent/src/docker/stats/ram.rs

@@ -0,0 +1,77 @@
+use super::ContainerMemoryInfo;
+use bollard::query_parameters::{ListContainersOptions, StatsOptions};
+use bollard::Docker;
+use futures_util::stream::TryStreamExt;
+use std::error::Error;
+
+/// Get memory statistics for all containers
+pub async fn get_all_containers_memory_stats(
+    docker: &Docker,
+) -> Result<Vec<ContainerMemoryInfo>, Box<dyn Error + Send + Sync>> {
+    let containers = docker
+        .list_containers(Some(ListContainersOptions {
+            all: true,
+            ..Default::default()
+        }))
+        .await?;
+
+    let mut mem_infos = Vec::new();
+
+    for container in containers {
+        let id = container.id.unwrap_or_default();
+
+        // Skip if no ID
+        if id.is_empty() {
+            continue;
+        }
+
+        if let Some(mem_info) = get_single_container_memory_stats(docker, &id).await? {
+            mem_infos.push(mem_info);
+        }
+    }
+
+    Ok(mem_infos)
+}
+
+/// Get memory statistics for a specific container
+pub async fn get_single_container_memory_stats(
+    docker: &Docker,
+    container_id: &str,
+) -> Result<Option<ContainerMemoryInfo>, Box<dyn Error + Send + Sync>> {
+    let mut stats_stream = docker.stats(
+        container_id,
+        Some(StatsOptions {
+            stream: false,
+            one_shot: true,
+        }),
+    );
+
+    if let Some(stats) = stats_stream.try_next().await? {
+        if let Some(memory_stats) = &stats.memory_stats {
+            let memory_usage = memory_stats.usage.unwrap_or(0);
+            let memory_limit = memory_stats.limit.unwrap_or(1); // Avoid division by zero
+
+            let memory_usage_percent = if memory_limit > 0 {
+                (memory_usage as f64 / memory_limit as f64) * 100.0
+            } else {
+                0.0
+            };
+
+            return Ok(Some(ContainerMemoryInfo {
+                container_id: container_id.to_string(),
+                memory_usage,
+                memory_limit,
+                memory_usage_percent,
+            }));
+        }
+    }
+
+    Ok(None)
+}
+
+/// Get total memory usage across all containers
+pub async fn get_total_memory_usage(docker: &Docker) -> Result<u64, Box<dyn Error + Send + Sync>> {
+    let mem_infos = get_all_containers_memory_stats(docker).await?;
+    let total_memory: u64 = mem_infos.iter().map(|mem| mem.memory_usage).sum();
+    Ok(total_memory)
+}

WatcherAgent/src/main.rs

@@ -1,4 +1,3 @@
-
 /// # WatcherAgent
 ///
 /// **WatcherAgent** is a cross-platform system monitoring agent written in Rust.
@@ -26,18 +25,16 @@
 /// ```
 ///
 /// The agent will register itself, start collecting metrics, and listen for remote commands.
-
 pub mod api;
+pub mod docker;
 pub mod hardware;
 pub mod metrics;
 pub mod models;
-pub mod docker;
-use tokio::task::JoinHandle;
+
 use bollard::Docker;
 use std::env;
 use std::error::Error;
-
-
+use tokio::task::JoinHandle;
 
 /// Awaits a spawned asynchronous task and flattens its nested `Result` type.
 ///
@@ -82,26 +79,8 @@ async fn flatten<T>(
 /// Returns an error if registration or any background task fails, or if required arguments are missing.
 #[tokio::main]
 async fn main() -> Result<(), Box<dyn Error + Send + Sync>> {
-    // Initialize Docker client
-    let docker = Docker::connect_with_local_defaults()
-        .map_err(|e| format!("Failed to connect to Docker: {}", e))?;
-
-    // Get current image version
-    let client_version = match docker::serverclientcomm::get_client_container(&docker).await {
-        Ok(Some(version)) => version.image,
-        Ok(None) => {
-            eprintln!("Warning: No image version found");
-            "unknown".to_string()
-        }
-        Err(e) => {
-            eprintln!("Warning: Could not get current image version: {}", e);
-            "unknown".to_string()
-        }
-    };
-    println!("Client Version: {}", client_version);
-
+    // Parse command-line arguments
     let args: Vec<String> = env::args().collect();
-    // args[0] is the binary name, args[1] is the first actual argument
     if args.len() < 2 {
         eprintln!("Usage: {} <server-url>", args[0]);
         return Err("Missing server URL argument".into());
@@ -111,20 +90,39 @@ async fn main() -> Result<(), Box<dyn Error + Send + Sync>> {
 
     // Registration with backend server
     let (server_id, ip) = match api::register_with_server(&server_url).await {
-        Ok((id, ip)) => (id, ip),
+        Ok((id, ip)) => {
+            println!("Registered with server. ID: {}, IP: {}", id, ip);
+            (id, ip)
+        },
         Err(e) => {
             eprintln!("Fehler bei der Registrierung am Server: {e}");
             return Err(e);
         }
     };
 
+    // Initialize Docker (optional - agent can run without Docker)
+    let docker_manager = docker::DockerManager::new_optional();
+
+    // Get current image version
+    let client_version = if let Some(ref docker_manager) = docker_manager {
+        docker_manager.get_client_version().await
+    } else {
+        "unknown".to_string()
+    };
+    println!("Client Version: {}", client_version);
+
     // Start background tasks
-    // Start server listening for commands
-    let listening_handle = tokio::spawn({
-        let docker = docker.clone();
-        let server_url = server_url.to_string();
-        async move { api::listening_to_server(&docker, &server_url).await }
-    });
+    // Start server listening for commands (only if Docker is available)
+    let listening_handle = if let Some(docker_manager) = docker_manager {
+        tokio::spawn({
+            let docker = docker_manager.docker.clone();
+            let server_url = server_url.to_string();
+            async move { api::listening_to_server(&docker, &server_url).await }
+        })
+    } else {
+        println!("Docker not available, skipping server command listener.");
+        tokio::spawn(async { Ok(()) }) // Dummy task
+    };
 
     // Start heartbeat in background
     let heartbeat_handle = tokio::spawn({

WatcherAgent/src/metrics.rs

@@ -1,5 +1,3 @@
-
-
 /// # Metrics Module
 ///
 /// This module orchestrates the collection and reporting of hardware and network metrics for WatcherAgent.
@@ -15,11 +13,11 @@ use std::error::Error;
 use std::time::Duration;
 
 use crate::api;
+//use crate::docker::DockerInfo;
 use crate::hardware::network::NetworkMonitor;
 use crate::hardware::HardwareInfo;
 use crate::models::MetricDto;
 
-
 /// Main orchestrator for hardware and network metric collection and reporting.
 ///
 /// The `Collector` struct manages the state required to collect metrics and send them to the backend server. It maintains a network monitor for bandwidth tracking, the agent's server ID, and its IP address.
@@ -34,7 +32,6 @@ pub struct Collector {
     ip_address: String,
 }
 
-
 impl Collector {
     /// Creates a new `Collector` instance for metric collection and reporting.
     ///
@@ -115,4 +112,59 @@ impl Collector {
             net_tx: hardware.network.tx_rate.unwrap_or_default(),
         })
     }
+
+    /// Gets container metrics for all containers
+    pub async fn docker_collect(
+        &self,
+    ) -> Result<Vec<DockerContainer>, Box<dyn Error + Send + Sync>> {
+        let containers = container::get_available_containers(&self.docker).await;
+        let mut metrics = Vec::new();
+
+        for container in containers {
+            // Get network stats (you'll need to implement this in container.rs)
+            let network_stats = container::get_network_stats(&self.docker, &container.id).await?;
+            // Get CPU stats (you'll need to implement this in container.rs)
+            let cpu_stats = container::get_cpu_stats(&self.docker, &container.id).await?;
+
+            // Get current status by inspecting the container
+            let status = match self
+                .docker
+                .inspect_container(&container.id, None::<InspectContainerOptions>)
+                .await
+            {
+                Ok(container_info) => {
+                    // Extract status from container state and convert to string
+                    container_info
+                        .state
+                        .and_then(|state| state.status)
+                        .map(|status_enum| {
+                            match status_enum {
+                                bollard::models::ContainerStateStatusEnum::CREATED => "created",
+                                bollard::models::ContainerStateStatusEnum::RUNNING => "running",
+                                bollard::models::ContainerStateStatusEnum::PAUSED => "paused",
+                                bollard::models::ContainerStateStatusEnum::RESTARTING => {
+                                    "restarting"
+                                }
+                                bollard::models::ContainerStateStatusEnum::REMOVING => "removing",
+                                bollard::models::ContainerStateStatusEnum::EXITED => "exited",
+                                bollard::models::ContainerStateStatusEnum::DEAD => "dead",
+                                bollard::secret::ContainerStateStatusEnum::EMPTY => todo!(),
+                            }
+                            .to_string()
+                        })
+                        .unwrap_or_else(|| "unknown".to_string())
+                }
+                Err(_) => "unknown".to_string(),
+            };
+
+            metrics.push(DockerContainerMetricDto {
+                server_id: container.id,
+                status: status,
+                network: network_stats,
+                cpu: cpu_stats,
+            });
+        }
+
+        Ok(metrics)
+    }
 }

WatcherAgent/src/models.rs

@@ -1,5 +1,3 @@
-
-
 /// # Models Module
 ///
 /// This module defines all data structures (DTOs) used for communication between WatcherAgent and the backend server, as well as hardware metrics and Docker container info.
@@ -11,6 +9,8 @@
 ///
 /// ## Usage
 /// These types are serialized/deserialized for HTTP communication and used throughout the agent for data exchange.
+use crate::docker::stats;
+
 use serde::{Deserialize, Serialize};
 
 /// Registration data sent to the backend server.
@@ -25,7 +25,7 @@ use serde::{Deserialize, Serialize};
 #[derive(Serialize, Debug)]
 pub struct RegistrationDto {
     #[serde(rename = "id")]
-    pub id: i32,
+    pub server_id: i32,
     #[serde(rename = "ipAddress")]
     pub ip_address: String,
     #[serde(rename = "cpuType")]
@@ -185,13 +185,53 @@ pub struct Acknowledgment {
 /// - `_net_in`: Network receive rate in **bytes per second (B/s)**
 /// - `_net_out`: Network transmit rate in **bytes per second (B/s)**
 /// - `_cpu_load`: CPU usage as a percentage (**0.0–100.0**)
+#[derive(Debug, Serialize, Clone)]
+pub struct DockerRegistrationDto {
+    /// Unique server identifier (integer)
+    pub server_id: u32,
+    /// json stringified array of DockerContainer
+    /// 
+    /// ## Json Example
+    /// json format: [{"id":"234dsf234","image":"nginx:latest","name":"webserver"},...]
+    /// 
+    /// ## Fields
+    /// id: unique container ID (first 12 hex digits)
+    /// image: docker image name
+    /// name: container name
+    pub containers: String,
+}
+
+#[derive(Debug, Serialize, Clone)]
+pub struct DockerMetricDto {
+    pub server_id: String,
+    /// json stringified array of DockerContainer
+    /// 
+    /// ## Json Example
+    /// json format: [{"id":"234dsf234","status":"running","image":"nginx:latest","name":"webserver","network":{"net_in":1024,"net_out":2048},"cpu":{"cpu_load":12.5},"ram":{"ram_load":10.0}},...]
+    /// 
+    /// ## Fields
+    /// id: unique container ID (first 12 hex digits)
+    /// status: "running";"stopped";others
+    /// image: docker image name
+    /// name: container name
+    /// network: network stats
+    /// cpu: cpu stats
+    /// ram: ram stats
+    pub containers: String,
+}
+
+#[derive(Debug, Serialize, Clone)]
+pub struct DockerContainerInfo {
+    pub container: Option<DockerContainer>,
+    pub status: Option<String>, // "running";"stopped";others
+    pub network: Option<stats::ContainerNetworkInfo>,
+    pub cpu: Option<stats::ContainerCpuInfo>,
+    pub ram: Option<stats::ContainerMemoryInfo>,
+}
+
 #[derive(Debug, Serialize, Clone)]
 pub struct DockerContainer {
-    pub ID: String,
-    pub image: String,
-    pub Name: String,
-    pub Status: String, // "running";"stopped";others
-    pub _net_in: f64,
-    pub _net_out: f64,
-    pub _cpu_load: f64,
+    pub id: String,
+    pub image: Option<String>,
+    pub name: Option<String>,
 }