Bump version to v0.1.202

- Remove zbus dependency from agent
- Replace D-Bus Connection calls with systemctl show commands
- Fix agent hang by eliminating blocking D-Bus operations
- get_unit_property now uses systemctl show with property flags
- Memory, disk usage, and nginx config queries use systemctl
- Simpler, more reliable service monitoring

.gitea/workflows/release.yml

@@ -113,13 +113,13 @@ jobs:
           NIX_HASH="sha256-$(python3 -c "import base64, binascii; print(base64.b64encode(binascii.unhexlify('$NEW_HASH')).decode())")"
           
           # Update the NixOS configuration
-          sed -i "s|version = \"v[^\"]*\"|version = \"$VERSION\"|" hosts/services/cm-dashboard.nix
-          sed -i "s|sha256 = \"sha256-[^\"]*\"|sha256 = \"$NIX_HASH\"|" hosts/services/cm-dashboard.nix
+          sed -i "s|version = \"v[^\"]*\"|version = \"$VERSION\"|" services/cm-dashboard.nix
+          sed -i "s|sha256 = \"sha256-[^\"]*\"|sha256 = \"$NIX_HASH\"|" services/cm-dashboard.nix
 
           # Commit and push changes
           git config user.name "Gitea Actions"
           git config user.email "actions@gitea.cmtec.se"
-          git add hosts/services/cm-dashboard.nix
+          git add services/cm-dashboard.nix
           git commit -m "Auto-update cm-dashboard to $VERSION
 
           - Update version to $VERSION with automated release

CLAUDE.md

@@ -304,28 +304,28 @@ exclude_fs_types = ["tmpfs", "devtmpfs", "sysfs", "proc"]
 ### Display Format
 
 ```
+Network:
+● eno1:
+  ├─ ip: 192.168.30.105
+  └─ tailscale0: 100.125.108.16
+● eno2:
+  └─ ip: 192.168.32.105
 CPU:
 ● Load: 0.23 0.21 0.13
   └─ Freq: 1048 MHz
-
 RAM:
 ● Usage: 25% 5.8GB/23.3GB
   ├─ ● /tmp: 2% 0.5GB/2GB
   └─ ● /var/tmp: 0% 0GB/1.0GB
-
 Storage:
-● mergerfs (2+1):
-  ├─ Total: ● 63% 2355.2GB/3686.4GB
-  ├─ Data Disks:
-  │  ├─ ● sdb T: 24°C W: 5%
-  │  └─ ● sdd T: 27°C W: 5%
-  ├─ Parity: ● sdc T: 24°C W: 5%
-  └─ Mount: /srv/media
-
-● nvme0n1 T: 25C W: 4%
+● 844B9A25 T: 25C W: 4%
   ├─ ● /: 55% 250.5GB/456.4GB
   └─ ● /boot: 26% 0.3GB/1.0GB
-
+● mergerfs /srv/media:
+  ├─ ● 63% 2355.2GB/3686.4GB
+  ├─ ● Data_1: WDZQ8H8D T: 28°C
+  ├─ ● Data_2: GGA04461 T: 28°C
+  └─ ● Parity: WDZS8RY0 T: 29°C
 Backup:
 ● WD-WCC7K1234567 T: 32°C W: 12%
   ├─ Last: 2h ago (12.3GB)
@@ -361,98 +361,6 @@ Keep responses concise and focused. Avoid extensive implementation summaries unl
 - ✅ "Restructure storage widget with improved layout"
 - ✅ "Update CPU thresholds to production values"
 
-## Completed Architecture Migration (v0.1.131)
-
-## ✅ COMPLETE MONITORING SYSTEM RESTORATION (v0.1.141)
-
-**🎉 SUCCESS: All Issues Fixed - Complete Functional Monitoring System**
-
-### ✅ Completed Implementation (v0.1.141)
-
-**All Major Issues Resolved:**
-```
-✅ Data Collection: Agent collects structured data correctly
-✅ Storage Display: Perfect format with correct mount points and temperature/wear
-✅ Status Evaluation: All metrics properly evaluated against thresholds  
-✅ Notifications: Working email alerts on status changes
-✅ Thresholds: All collectors using configured thresholds for status calculation
-✅ Build Information: NixOS version displayed correctly
-✅ Mount Point Consistency: Stable, sorted display order
-```
-
-### ✅ All Phases Completed Successfully
-
-#### ✅ Phase 1: Storage Display - COMPLETED
-- ✅ Use `lsblk` instead of `findmnt` (eliminated `/nix/store` bind mount issue)
-- ✅ Add `sudo smartctl` for permissions (SMART data collection working)
-- ✅ Fix NVMe SMART parsing (`Temperature:` and `Percentage Used:` fields)
-- ✅ Consistent filesystem/tmpfs sorting (no more random order swapping)
-- ✅ **VERIFIED**: Dashboard shows `● nvme0n1 T: 28°C W: 1%` correctly
-
-#### ✅ Phase 2: Status Evaluation System - COMPLETED
-- ✅ **CPU Status**: Load averages and temperature evaluated against `HysteresisThresholds`
-- ✅ **Memory Status**: Usage percentage evaluated against thresholds
-- ✅ **Storage Status**: Drive temperature, health, and filesystem usage evaluated
-- ✅ **Service Status**: Service states properly tracked and evaluated
-- ✅ **Status Fields**: All AgentData structures include status information
-- ✅ **Threshold Integration**: All collectors use their configured thresholds
-
-#### ✅ Phase 3: Notification System - COMPLETED  
-- ✅ **Status Change Detection**: Agent tracks status between collection cycles
-- ✅ **Email Notifications**: Alerts sent on degradation (OK→Warning/Critical, Warning→Critical)
-- ✅ **Notification Content**: Detailed alerts with metric values and timestamps
-- ✅ **NotificationManager Integration**: Fully restored and operational
-- ✅ **Maintenance Mode**: `/tmp/cm-maintenance` file support maintained
-
-#### ✅ Phase 4: Integration & Testing - COMPLETED
-- ✅ **AgentData Status Fields**: All structured data includes status evaluation
-- ✅ **Status Processing**: Agent applies thresholds at collection time
-- ✅ **End-to-End Flow**: Collection → Evaluation → Notification → Display
-- ✅ **Dynamic Versioning**: Agent version from `CARGO_PKG_VERSION` 
-- ✅ **Build Information**: NixOS generation display restored
-
-### ✅ Final Architecture - WORKING
-
-**Complete Operational Flow:**
-```
-Collectors → AgentData (with Status) → NotificationManager → Email Alerts
-                                    ↘                        ↗  
-                                     ZMQ → Dashboard → Perfect Display
-```
-
-**Operational Components:**
-1. ✅ **Collectors**: Populate AgentData with metrics AND status evaluation
-2. ✅ **Status Evaluation**: `HysteresisThresholds.evaluate()` applied per collector
-3. ✅ **Notifications**: Email alerts on status change detection
-4. ✅ **Display**: Correct mount points, temperature, wear, and build information
-
-### ✅ Success Criteria - ALL MET
-
-**Display Requirements:**
-- ✅ Dashboard shows `● nvme0n1 T: 28°C W: 1%` format perfectly
-- ✅ Mount points show `/` and `/boot` (not `root`/`boot`)
-- ✅ Build information shows actual NixOS version (not "unknown")
-- ✅ Consistent sorting eliminates random order changes
-
-**Monitoring Requirements:**  
-- ✅ High CPU load triggers Warning/Critical status and email alert
-- ✅ High memory usage triggers Warning/Critical status and email alert
-- ✅ High disk temperature triggers Warning/Critical status and email alert
-- ✅ Failed services trigger Warning/Critical status and email alert
-- ✅ Maintenance mode suppresses notifications as expected
-
-### 🚀 Production Ready
-
-**CM Dashboard v0.1.141 is a complete, functional infrastructure monitoring system:**
-
-- **Real-time Monitoring**: All system components with 1-second intervals
-- **Intelligent Alerting**: Email notifications on threshold violations
-- **Perfect Display**: Accurate mount points, temperatures, and system information
-- **Status-Aware**: All metrics evaluated against configurable thresholds
-- **Production Ready**: Full monitoring capabilities restored
-
-**The monitoring system is fully operational and ready for production use.**
-
 ## Implementation Rules
 
 1. **Agent Status Authority**: Agent calculates status for each metric using thresholds

Cargo.lock

@@ -279,7 +279,7 @@ checksum = "a1d728cc89cf3aee9ff92b05e62b19ee65a02b5702cff7d5a377e32c6ae29d8d"
 
 [[package]]
 name = "cm-dashboard"
-version = "0.1.154"
+version = "0.1.191"
 dependencies = [
  "anyhow",
  "chrono",
@@ -301,7 +301,7 @@ dependencies = [
 
 [[package]]
 name = "cm-dashboard-agent"
-version = "0.1.154"
+version = "0.1.191"
 dependencies = [
  "anyhow",
  "async-trait",
@@ -324,7 +324,7 @@ dependencies = [
 
 [[package]]
 name = "cm-dashboard-shared"
-version = "0.1.154"
+version = "0.1.191"
 dependencies = [
  "chrono",
  "serde",

agent/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "cm-dashboard-agent"
-version = "0.1.154"
+version = "0.1.202"
 edition = "2021"
 
 [dependencies]

agent/src/agent.rs

@@ -12,11 +12,11 @@ use crate::collectors::{
     cpu::CpuCollector,
     disk::DiskCollector,
     memory::MemoryCollector,
+    network::NetworkCollector,
     nixos::NixOSCollector,
     systemd::SystemdCollector,
 };
 use crate::notifications::NotificationManager;
-use crate::service_tracker::UserStoppedServiceTracker;
 use cm_dashboard_shared::AgentData;
 
 pub struct Agent {
@@ -25,7 +25,6 @@ pub struct Agent {
     zmq_handler: ZmqHandler,
     collectors: Vec<Box<dyn Collector>>,
     notification_manager: NotificationManager,
-    service_tracker: UserStoppedServiceTracker,
     previous_status: Option<SystemStatus>,
 }
 
@@ -80,6 +79,10 @@ impl Agent {
             collectors.push(Box::new(BackupCollector::new()));
         }
 
+        if config.collectors.network.enabled {
+            collectors.push(Box::new(NetworkCollector::new(config.collectors.network.clone())));
+        }
+
         if config.collectors.nixos.enabled {
             collectors.push(Box::new(NixOSCollector::new(config.collectors.nixos.clone())));
         }
@@ -90,17 +93,12 @@ impl Agent {
         let notification_manager = NotificationManager::new(&config.notifications, &hostname)?;
         info!("Notification manager initialized");
 
-        // Initialize service tracker
-        let service_tracker = UserStoppedServiceTracker::new();
-        info!("Service tracker initialized");
-
         Ok(Self {
             hostname,
             config,
             zmq_handler,
             collectors,
             notification_manager,
-            service_tracker,
             previous_status: None,
         })
     }

agent/src/collectors/backup.rs

@@ -1,5 +1,4 @@
 use async_trait::async_trait;
-use chrono::{NaiveDateTime, DateTime};
 use cm_dashboard_shared::{AgentData, BackupData, BackupDiskData};
 use serde::{Deserialize, Serialize};
 use std::collections::HashMap;

agent/src/collectors/disk.rs

@@ -21,8 +21,6 @@ pub struct DiskCollector {
 struct PhysicalDrive {
     name: String,                        // e.g., "nvme0n1", "sda"
     health: String,                      // SMART health status
-    temperature_celsius: Option<f32>,    // Drive temperature
-    wear_percent: Option<f32>,           // SSD wear level
     filesystems: Vec<Filesystem>,        // mounted filesystems on this drive
 }
 
@@ -114,9 +112,12 @@ impl DiskCollector {
 
     /// Get block devices and their mount points using lsblk
     async fn get_mount_devices(&self) -> Result<HashMap<String, String>, CollectorError> {
-        let output = Command::new("lsblk")
-            .args(&["-rn", "-o", "NAME,MOUNTPOINT"])
-            .output()
+        use super::run_command_with_timeout;
+
+        let mut cmd = Command::new("lsblk");
+        cmd.args(&["-rn", "-o", "NAME,MOUNTPOINT"]);
+
+        let output = run_command_with_timeout(cmd, 2).await
             .map_err(|e| CollectorError::SystemRead {
                 path: "block devices".to_string(),
                 error: e.to_string(),
@@ -188,8 +189,8 @@ impl DiskCollector {
 
     /// Get filesystem info for a single mount point
     fn get_filesystem_info(&self, mount_point: &str) -> Result<(u64, u64), CollectorError> {
-        let output = Command::new("df")
-            .args(&["--block-size=1", mount_point])
+        let output = std::process::Command::new("timeout")
+            .args(&["2", "df", "--block-size=1", mount_point])
             .output()
             .map_err(|e| CollectorError::SystemRead {
                 path: format!("df {}", mount_point),
@@ -351,8 +352,6 @@ impl DiskCollector {
             let physical_drive = PhysicalDrive {
                 name: drive_name,
                 health: "UNKNOWN".to_string(), // Will be updated with SMART data
-                temperature_celsius: None,
-                wear_percent: None,
                 filesystems,
             };
             physical_drives.push(physical_drive);
@@ -417,23 +416,26 @@ impl DiskCollector {
 
     /// Get SMART data for a single drive
     async fn get_smart_data(&self, drive_name: &str) -> Result<SmartData, CollectorError> {
-        let output = Command::new("sudo")
-            .args(&["smartctl", "-a", &format!("/dev/{}", drive_name)])
-            .output()
+        use super::run_command_with_timeout;
+
+        // Use direct smartctl (no sudo) - service has CAP_SYS_RAWIO and CAP_SYS_ADMIN capabilities
+        // For NVMe drives, specify device type explicitly
+        let mut cmd = Command::new("smartctl");
+        if drive_name.starts_with("nvme") {
+            cmd.args(&["-d", "nvme", "-a", &format!("/dev/{}", drive_name)]);
+        } else {
+            cmd.args(&["-a", &format!("/dev/{}", drive_name)]);
+        }
+
+        let output = run_command_with_timeout(cmd, 3).await
             .map_err(|e| CollectorError::SystemRead {
                 path: format!("SMART data for {}", drive_name),
                 error: e.to_string(),
             })?;
 
         let output_str = String::from_utf8_lossy(&output.stdout);
-        let error_str = String::from_utf8_lossy(&output.stderr);
-        
-        // Debug logging for SMART command results
-        debug!("SMART output for {}: status={}, stdout_len={}, stderr={}", 
-            drive_name, output.status, output_str.len(), error_str);
 
         if !output.status.success() {
-            debug!("SMART command failed for {}: {}", drive_name, error_str);
             // Return unknown data rather than failing completely
             return Ok(SmartData {
                 health: "UNKNOWN".to_string(),
@@ -457,17 +459,21 @@ impl DiskCollector {
                 }
             }
             
-            // Serial number parsing
-            if line.starts_with("Serial Number:") {
+            // Serial number parsing (both SATA and NVMe)
+            if line.contains("Serial Number:") {
                 if let Some(serial_part) = line.split("Serial Number:").nth(1) {
-                    if let Some(serial_str) = serial_part.split_whitespace().next() {
-                        serial_number = Some(serial_str.to_string());
+                    let serial_str = serial_part.trim();
+                    if !serial_str.is_empty() {
+                        // Take first whitespace-separated token
+                        if let Some(serial) = serial_str.split_whitespace().next() {
+                            serial_number = Some(serial.to_string());
+                        }
                     }
                 }
             }
             
             // Temperature parsing for different drive types
-            if line.contains("Temperature_Celsius") || line.contains("Airflow_Temperature_Cel") {
+            if line.contains("Temperature_Celsius") || line.contains("Airflow_Temperature_Cel") || line.contains("Temperature_Case") {
                 // Traditional SATA drives: attribute table format
                 if let Some(temp_str) = line.split_whitespace().nth(9) {
                     if let Ok(temp) = temp_str.parse::<f32>() {
@@ -485,7 +491,15 @@ impl DiskCollector {
             }
             
             // Wear level parsing for SSDs
-            if line.contains("Wear_Leveling_Count") || line.contains("SSD_Life_Left") {
+            if line.contains("Media_Wearout_Indicator") {
+                // Media_Wearout_Indicator stores remaining life % in column 3 (VALUE)
+                if let Some(wear_str) = line.split_whitespace().nth(3) {
+                    if let Ok(remaining) = wear_str.parse::<f32>() {
+                        wear_percent = Some(100.0 - remaining); // Convert remaining life to wear
+                    }
+                }
+            } else if line.contains("Wear_Leveling_Count") || line.contains("SSD_Life_Left") {
+                // Other wear attributes store value in column 9 (RAW_VALUE)
                 if let Some(wear_str) = line.split_whitespace().nth(9) {
                     if let Ok(wear) = wear_str.parse::<f32>() {
                         wear_percent = Some(100.0 - wear); // Convert remaining life to wear
@@ -534,6 +548,7 @@ impl DiskCollector {
 
             agent_data.system.storage.drives.push(DriveData {
                 name: drive.name.clone(),
+                serial_number: smart.and_then(|s| s.serial_number.clone()),
                 health: smart.map(|s| s.health.clone()).unwrap_or_else(|| drive.health.clone()),
                 temperature_celsius: smart.and_then(|s| s.temperature_celsius),
                 wear_percent: smart.and_then(|s| s.wear_percent),
@@ -634,10 +649,19 @@ impl DiskCollector {
         }).collect();
         
         // Calculate overall pool health string and status
-        let (pool_health, health_status) = match (failed_data, failed_parity) {
-            (0, 0) => ("healthy".to_string(), cm_dashboard_shared::Status::Ok),
-            (1, 0) | (0, 1) => ("degraded".to_string(), cm_dashboard_shared::Status::Warning),
-            _ => ("critical".to_string(), cm_dashboard_shared::Status::Critical),
+        // SnapRAID logic: can tolerate up to N parity drive failures (where N = number of parity drives)
+        // If data drives fail AND we've lost parity protection, that's critical
+        let (pool_health, health_status) = if failed_data == 0 && failed_parity == 0 {
+            ("healthy".to_string(), cm_dashboard_shared::Status::Ok)
+        } else if failed_data == 0 && failed_parity > 0 {
+            // Parity failed but no data loss - degraded (reduced protection)
+            ("degraded".to_string(), cm_dashboard_shared::Status::Warning)
+        } else if failed_data == 1 && failed_parity == 0 {
+            // One data drive failed, parity intact - degraded (recoverable)
+            ("degraded".to_string(), cm_dashboard_shared::Status::Warning)
+        } else {
+            // Multiple data drives failed OR data+parity failed = data loss risk
+            ("critical".to_string(), cm_dashboard_shared::Status::Critical)
         };
         
         // Calculate pool usage status using config thresholds
@@ -738,9 +762,9 @@ impl DiskCollector {
 
     /// Get drive information for a mount path
     fn get_drive_info_for_path(&self, path: &str) -> anyhow::Result<PoolDrive> {
-        // Use lsblk to find the backing device
-        let output = Command::new("lsblk")
-            .args(&["-rn", "-o", "NAME,MOUNTPOINT"])
+        // Use lsblk to find the backing device with timeout
+        let output = Command::new("timeout")
+            .args(&["2", "lsblk", "-rn", "-o", "NAME,MOUNTPOINT"])
             .output()
             .map_err(|e| anyhow::anyhow!("Failed to run lsblk: {}", e))?;
             

agent/src/collectors/memory.rs

@@ -105,12 +105,12 @@ impl MemoryCollector {
             return Ok(());
         }
 
-        // Get usage data for all tmpfs mounts at once using df
-        let mut df_args = vec!["df", "--output=target,size,used", "--block-size=1"];
+        // Get usage data for all tmpfs mounts at once using df (with 2 second timeout)
+        let mut df_args = vec!["2", "df", "--output=target,size,used", "--block-size=1"];
         df_args.extend(tmpfs_mounts.iter().map(|s| s.as_str()));
 
-        let df_output = std::process::Command::new(df_args[0])
-            .args(&df_args[1..])
+        let df_output = std::process::Command::new("timeout")
+            .args(&df_args[..])
             .output()
             .map_err(|e| CollectorError::SystemRead {
                 path: "tmpfs mounts".to_string(),

agent/src/collectors/mod.rs

@@ -1,17 +1,34 @@
 use async_trait::async_trait;
 use cm_dashboard_shared::{AgentData};
-
+use std::process::{Command, Output};
+use std::time::Duration;
+use tokio::time::timeout;
 
 pub mod backup;
 pub mod cpu;
 pub mod disk;
 pub mod error;
 pub mod memory;
+pub mod network;
 pub mod nixos;
 pub mod systemd;
 
 pub use error::CollectorError;
 
+/// Run a command with a timeout to prevent blocking
+pub async fn run_command_with_timeout(mut cmd: Command, timeout_secs: u64) -> std::io::Result<Output> {
+    let timeout_duration = Duration::from_secs(timeout_secs);
+
+    match timeout(timeout_duration, tokio::task::spawn_blocking(move || cmd.output())).await {
+        Ok(Ok(result)) => result,
+        Ok(Err(e)) => Err(std::io::Error::new(std::io::ErrorKind::Other, e)),
+        Err(_) => Err(std::io::Error::new(
+            std::io::ErrorKind::TimedOut,
+            format!("Command timed out after {} seconds", timeout_secs)
+        )),
+    }
+}
+
 
 /// Base trait for all collectors with direct structured data output
 #[async_trait]

agent/src/collectors/network.rs

@@ -0,0 +1,224 @@
+use async_trait::async_trait;
+use cm_dashboard_shared::{AgentData, NetworkInterfaceData, Status};
+use std::process::Command;
+use tracing::debug;
+
+use super::{Collector, CollectorError};
+use crate::config::NetworkConfig;
+
+/// Network interface collector with physical/virtual classification and link status
+pub struct NetworkCollector {
+    _config: NetworkConfig,
+}
+
+impl NetworkCollector {
+    pub fn new(config: NetworkConfig) -> Self {
+        Self { _config: config }
+    }
+
+    /// Check if interface is physical (not virtual)
+    fn is_physical_interface(name: &str) -> bool {
+        // Physical interface patterns
+        matches!(
+            &name[..],
+            s if s.starts_with("eth")
+                || s.starts_with("ens")
+                || s.starts_with("enp")
+                || s.starts_with("wlan")
+                || s.starts_with("wlp")
+                || s.starts_with("eno")
+                || s.starts_with("enx")
+        )
+    }
+
+    /// Get link status for an interface
+    fn get_link_status(interface: &str) -> Status {
+        let operstate_path = format!("/sys/class/net/{}/operstate", interface);
+
+        match std::fs::read_to_string(&operstate_path) {
+            Ok(state) => {
+                let state = state.trim();
+                match state {
+                    "up" => Status::Ok,
+                    "down" => Status::Inactive,
+                    "unknown" => Status::Warning,
+                    _ => Status::Unknown,
+                }
+            }
+            Err(_) => Status::Unknown,
+        }
+    }
+
+    /// Get the primary physical interface (the one with default route)
+    fn get_primary_physical_interface() -> Option<String> {
+        match Command::new("timeout").args(["2", "ip", "route", "show", "default"]).output() {
+            Ok(output) if output.status.success() => {
+                let output_str = String::from_utf8_lossy(&output.stdout);
+                // Parse: "default via 192.168.1.1 dev eno1 ..."
+                for line in output_str.lines() {
+                    if line.starts_with("default") {
+                        if let Some(dev_pos) = line.find(" dev ") {
+                            let after_dev = &line[dev_pos + 5..];
+                            if let Some(space_pos) = after_dev.find(' ') {
+                                let interface = &after_dev[..space_pos];
+                                // Only return if it's a physical interface
+                                if Self::is_physical_interface(interface) {
+                                    return Some(interface.to_string());
+                                }
+                            } else {
+                                // No space after interface name (end of line)
+                                let interface = after_dev.trim();
+                                if Self::is_physical_interface(interface) {
+                                    return Some(interface.to_string());
+                                }
+                            }
+                        }
+                    }
+                }
+                None
+            }
+            _ => None,
+        }
+    }
+
+    /// Parse VLAN configuration from /proc/net/vlan/config
+    /// Returns a map of interface name -> VLAN ID
+    fn parse_vlan_config() -> std::collections::HashMap<String, u16> {
+        let mut vlan_map = std::collections::HashMap::new();
+
+        if let Ok(contents) = std::fs::read_to_string("/proc/net/vlan/config") {
+            for line in contents.lines().skip(2) {  // Skip header lines
+                let parts: Vec<&str> = line.split('|').collect();
+                if parts.len() >= 2 {
+                    let interface_name = parts[0].trim();
+                    let vlan_id_str = parts[1].trim();
+
+                    if let Ok(vlan_id) = vlan_id_str.parse::<u16>() {
+                        vlan_map.insert(interface_name.to_string(), vlan_id);
+                    }
+                }
+            }
+        }
+
+        vlan_map
+    }
+
+    /// Collect network interfaces using ip command
+    async fn collect_interfaces(&self) -> Vec<NetworkInterfaceData> {
+        let mut interfaces = Vec::new();
+
+        // Parse VLAN configuration
+        let vlan_map = Self::parse_vlan_config();
+
+        match Command::new("timeout").args(["2", "ip", "-j", "addr"]).output() {
+            Ok(output) if output.status.success() => {
+                let json_str = String::from_utf8_lossy(&output.stdout);
+
+                if let Ok(json_data) = serde_json::from_str::<serde_json::Value>(&json_str) {
+                    if let Some(ifaces) = json_data.as_array() {
+                        for iface in ifaces {
+                            let name = iface["ifname"].as_str().unwrap_or("").to_string();
+
+                            // Skip loopback, empty names, and ifb* interfaces
+                            if name.is_empty() || name == "lo" || name.starts_with("ifb") {
+                                continue;
+                            }
+
+                            // Parse parent interface from @parent notation (e.g., lan@enp0s31f6)
+                            let (interface_name, parent_interface) = if let Some(at_pos) = name.find('@') {
+                                let (child, parent) = name.split_at(at_pos);
+                                (child.to_string(), Some(parent[1..].to_string()))
+                            } else {
+                                (name.clone(), None)
+                            };
+
+                            let mut ipv4_addresses = Vec::new();
+                            let mut ipv6_addresses = Vec::new();
+
+                            // Extract IP addresses
+                            if let Some(addr_info) = iface["addr_info"].as_array() {
+                                for addr in addr_info {
+                                    if let Some(family) = addr["family"].as_str() {
+                                        if let Some(local) = addr["local"].as_str() {
+                                            match family {
+                                                "inet" => ipv4_addresses.push(local.to_string()),
+                                                "inet6" => {
+                                                    // Skip link-local IPv6 addresses (fe80::)
+                                                    if !local.starts_with("fe80:") {
+                                                        ipv6_addresses.push(local.to_string());
+                                                    }
+                                                }
+                                                _ => {}
+                                            }
+                                        }
+                                    }
+                                }
+                            }
+
+                            // Determine if physical and get status
+                            let is_physical = Self::is_physical_interface(&interface_name);
+
+                            // Only filter out virtual interfaces without IPs
+                            // Physical interfaces should always be shown even if down/no IPs
+                            if !is_physical && ipv4_addresses.is_empty() && ipv6_addresses.is_empty() {
+                                continue;
+                            }
+
+                            let link_status = if is_physical {
+                                Self::get_link_status(&name)
+                            } else {
+                                Status::Unknown  // Virtual interfaces don't have meaningful link status
+                            };
+
+                            // Look up VLAN ID from the map (use original name before @ parsing)
+                            let vlan_id = vlan_map.get(&name).copied();
+
+                            interfaces.push(NetworkInterfaceData {
+                                name: interface_name,
+                                ipv4_addresses,
+                                ipv6_addresses,
+                                is_physical,
+                                link_status,
+                                parent_interface,
+                                vlan_id,
+                            });
+                        }
+                    }
+                }
+            }
+            Err(e) => {
+                debug!("Failed to execute ip command: {}", e);
+            }
+            Ok(output) => {
+                debug!("ip command failed with status: {}", output.status);
+            }
+        }
+
+        // Assign primary physical interface as parent to virtual interfaces without explicit parent
+        let primary_interface = Self::get_primary_physical_interface();
+        if let Some(primary) = primary_interface {
+            for interface in interfaces.iter_mut() {
+                // Only assign parent to virtual interfaces that don't already have one
+                if !interface.is_physical && interface.parent_interface.is_none() {
+                    interface.parent_interface = Some(primary.clone());
+                }
+            }
+        }
+
+        interfaces
+    }
+}
+
+#[async_trait]
+impl Collector for NetworkCollector {
+    async fn collect_structured(&self, agent_data: &mut AgentData) -> Result<(), CollectorError> {
+        debug!("Collecting network interface data");
+
+        // Collect all network interfaces
+        let interfaces = self.collect_interfaces().await;
+
+        agent_data.system.network.interfaces = interfaces;
+
+        Ok(())
+    }
+}

agent/src/collectors/nixos.rs

@@ -5,7 +5,6 @@ use std::process::Command;
 use tracing::debug;
 
 use super::{Collector, CollectorError};
-use crate::config::NixOSConfig;
 
 /// NixOS system information collector with structured data output
 ///
@@ -13,13 +12,11 @@ use crate::config::NixOSConfig;
 /// - System generation/build information
 /// - Version information
 /// - Agent version from Nix store path
-pub struct NixOSCollector {
-    config: NixOSConfig,
-}
+pub struct NixOSCollector;
 
 impl NixOSCollector {
-    pub fn new(config: NixOSConfig) -> Self {
-        Self { config }
+    pub fn new(_config: crate::config::NixOSConfig) -> Self {
+        Self
     }
 
     /// Collect NixOS system information and populate AgentData
@@ -46,8 +43,8 @@ impl NixOSCollector {
         match fs::read_to_string("/etc/hostname") {
             Ok(hostname) => Some(hostname.trim().to_string()),
             Err(_) => {
-                // Fallback to hostname command
-                match Command::new("hostname").output() {
+                // Fallback to hostname command (with 2 second timeout)
+                match Command::new("timeout").args(["2", "hostname"]).output() {
                     Ok(output) => Some(String::from_utf8_lossy(&output.stdout).trim().to_string()),
                     Err(_) => None,
                 }
@@ -83,14 +80,25 @@ impl NixOSCollector {
         std::env::var("CM_DASHBOARD_VERSION").unwrap_or_else(|_| "unknown".to_string())
     }
 
-    /// Get NixOS system generation (build) information
+    /// Get NixOS system generation (build) information from git commit
     async fn get_nixos_generation(&self) -> Option<String> {
-        match Command::new("nixos-version").output() {
-            Ok(output) => {
-                let version_str = String::from_utf8_lossy(&output.stdout);
-                Some(version_str.trim().to_string())
+        // Try to read git commit hash from file written during rebuild
+        let commit_file = "/var/lib/cm-dashboard/git-commit";
+        match fs::read_to_string(commit_file) {
+            Ok(content) => {
+                let commit_hash = content.trim();
+                if commit_hash.len() >= 7 {
+                    debug!("Found git commit hash: {}", commit_hash);
+                    Some(commit_hash.to_string())
+                } else {
+                    debug!("Git commit hash too short: {}", commit_hash);
+                    None
+                }
+            }
+            Err(e) => {
+                debug!("Failed to read git commit file {}: {}", commit_file, e);
+                None
             }
-            Err(_) => None,
         }
     }
 }

agent/src/collectors/systemd.rs

@@ -4,7 +4,7 @@ use cm_dashboard_shared::{AgentData, ServiceData, SubServiceData, SubServiceMetr
 use std::process::Command;
 use std::sync::RwLock;
 use std::time::Instant;
-use tracing::debug;
+use tracing::{debug, warn};
 
 use super::{Collector, CollectorError};
 use crate::config::SystemdConfig;
@@ -22,8 +22,6 @@ pub struct SystemdCollector {
 struct ServiceCacheState {
     /// Last collection time for performance tracking
     last_collection: Option<Instant>,
-    /// Cached service data
-    services: Vec<ServiceInfo>,
     /// Cached complete service data with sub-services
     cached_service_data: Vec<ServiceData>,
     /// Interesting services to monitor (cached after discovery)
@@ -50,20 +48,10 @@ struct ServiceStatusInfo {
     sub_state: String,
 }
 
-/// Internal service information
-#[derive(Debug, Clone)]
-struct ServiceInfo {
-    name: String,
-    status: String,           // "active", "inactive", "failed", etc.
-    memory_mb: f32,          // Memory usage in MB
-    disk_gb: f32,            // Disk usage in GB
-}
-
 impl SystemdCollector {
     pub fn new(config: SystemdConfig) -> Self {
         let state = ServiceCacheState {
             last_collection: None,
-            services: Vec::new(),
             cached_service_data: Vec::new(),
             monitored_services: Vec::new(),
             service_status_cache: std::collections::HashMap::new(),
@@ -95,7 +83,6 @@ impl SystemdCollector {
         };
 
         // Collect service data for each monitored service
-        let mut services = Vec::new();
         let mut complete_service_data = Vec::new();
         for service_name in &monitored_services {
             match self.get_service_status(service_name) {
@@ -126,6 +113,7 @@ impl SystemdCollector {
                                 name: site_name.clone(),
                                 service_status: self.calculate_service_status(&site_name, &site_status),
                                 metrics,
+                                service_type: "nginx_site".to_string(),
                             });
                         }
                     }
@@ -141,18 +129,29 @@ impl SystemdCollector {
                                 name: container_name.clone(),
                                 service_status: self.calculate_service_status(&container_name, &container_status),
                                 metrics,
+                                service_type: "container".to_string(),
+                            });
+                        }
+
+                        // Add Docker images
+                        let docker_images = self.get_docker_images();
+                        for (image_name, image_status, image_size_mb) in docker_images {
+                            let mut metrics = Vec::new();
+                            metrics.push(SubServiceMetric {
+                                label: "size".to_string(),
+                                value: image_size_mb,
+                                unit: Some("MB".to_string()),
+                            });
+
+                            sub_services.push(SubServiceData {
+                                name: image_name.to_string(),
+                                service_status: self.calculate_service_status(&image_name, &image_status),
+                                metrics,
+                                service_type: "image".to_string(),
                             });
                         }
                     }
 
-                    let service_info = ServiceInfo {
-                        name: service_name.clone(),
-                        status: active_status.clone(),
-                        memory_mb,
-                        disk_gb,
-                    };
-                    services.push(service_info);
-
                     // Create complete service data
                     let service_data = ServiceData {
                         name: service_name.clone(),
@@ -173,11 +172,14 @@ impl SystemdCollector {
             }
         }
 
+        // Sort services alphabetically by name
+        agent_data.services.sort_by(|a, b| a.name.cmp(&b.name));
+        complete_service_data.sort_by(|a, b| a.name.cmp(&b.name));
+
         // Update cached state
         {
             let mut state = self.state.write().unwrap();
             state.last_collection = Some(start_time);
-            state.services = services;
             state.cached_service_data = complete_service_data;
         }
 
@@ -252,18 +254,18 @@ impl SystemdCollector {
 
     /// Auto-discover interesting services to monitor
     fn discover_services_internal(&self) -> Result<(Vec<String>, std::collections::HashMap<String, ServiceStatusInfo>)> {
-        // First: Get all service unit files
-        let unit_files_output = Command::new("systemctl")
-            .args(&["list-unit-files", "--type=service", "--no-pager", "--plain"])
+        // First: Get all service unit files (with 3 second timeout)
+        let unit_files_output = Command::new("timeout")
+            .args(&["3", "systemctl", "list-unit-files", "--type=service", "--no-pager", "--plain"])
             .output()?;
 
         if !unit_files_output.status.success() {
             return Err(anyhow::anyhow!("systemctl list-unit-files command failed"));
         }
 
-        // Second: Get runtime status of all units
-        let units_status_output = Command::new("systemctl")
-            .args(&["list-units", "--type=service", "--all", "--no-pager", "--plain"])
+        // Second: Get runtime status of all units (with 3 second timeout)
+        let units_status_output = Command::new("timeout")
+            .args(&["3", "systemctl", "list-units", "--type=service", "--all", "--no-pager", "--plain"])
             .output()?;
 
         if !units_status_output.status.success() {
@@ -359,16 +361,16 @@ impl SystemdCollector {
             }
         }
 
-        // Fallback to systemctl if not in cache
-        let output = Command::new("systemctl")
-            .args(&["is-active", &format!("{}.service", service)])
+        // Fallback to systemctl if not in cache (with 2 second timeout)
+        let output = Command::new("timeout")
+            .args(&["2", "systemctl", "is-active", &format!("{}.service", service)])
             .output()?;
 
         let active_status = String::from_utf8(output.stdout)?.trim().to_string();
 
-        // Get more detailed info
-        let output = Command::new("systemctl")
-            .args(&["show", &format!("{}.service", service), "--property=LoadState,ActiveState,SubState"])
+        // Get more detailed info (with 2 second timeout)
+        let output = Command::new("timeout")
+            .args(&["2", "systemctl", "show", &format!("{}.service", service), "--property=LoadState,ActiveState,SubState"])
             .output()?;
 
         let detailed_info = String::from_utf8(output.stdout)?;
@@ -420,7 +422,7 @@ impl SystemdCollector {
         if let Some(dirs) = self.config.service_directories.get(service_name) {
             // Service has configured paths - use the first accessible one
             for dir in dirs {
-                if let Some(size) = self.get_directory_size(dir) {
+                if let Some(size) = self.get_directory_size(dir).await {
                     return Ok(size);
                 }
             }
@@ -428,9 +430,9 @@ impl SystemdCollector {
             return Ok(0.0);
         }
 
-        // No configured path - try to get WorkingDirectory from systemctl
-        let output = Command::new("systemctl")
-            .args(&["show", &format!("{}.service", service_name), "--property=WorkingDirectory"])
+        // No configured path - try to get WorkingDirectory from systemctl (with 2 second timeout)
+        let output = Command::new("timeout")
+            .args(&["2", "systemctl", "show", &format!("{}.service", service_name), "--property=WorkingDirectory"])
             .output()
             .map_err(|e| CollectorError::SystemRead {
                 path: format!("WorkingDirectory for {}", service_name),
@@ -442,7 +444,7 @@ impl SystemdCollector {
             if line.starts_with("WorkingDirectory=") && !line.contains("[not set]") {
                 let dir = line.strip_prefix("WorkingDirectory=").unwrap_or("");
                 if !dir.is_empty() && dir != "/" {
-                    return Ok(self.get_directory_size(dir).unwrap_or(0.0));
+                    return Ok(self.get_directory_size(dir).await.unwrap_or(0.0));
                 }
             }
         }
@@ -450,18 +452,23 @@ impl SystemdCollector {
         Ok(0.0)
     }
     
-    /// Get size of a directory in GB
-    fn get_directory_size(&self, path: &str) -> Option<f32> {
-        let output = Command::new("sudo")
-            .args(&["du", "-sb", path])
-            .output()
-            .ok()?;
+    /// Get size of a directory in GB (with 2 second timeout)
+    async fn get_directory_size(&self, path: &str) -> Option<f32> {
+        use super::run_command_with_timeout;
+
+        // Use -s (summary) and --apparent-size for speed, 2 second timeout
+        let mut cmd = Command::new("sudo");
+        cmd.args(&["du", "-s", "--apparent-size", "--block-size=1", path]);
+
+        let output = run_command_with_timeout(cmd, 2).await.ok()?;
 
         if !output.status.success() {
             // Log permission errors for debugging but don't spam logs
             let stderr = String::from_utf8_lossy(&output.stderr);
             if stderr.contains("Permission denied") {
                 debug!("Permission denied accessing directory: {}", path);
+            } else if stderr.contains("timed out") {
+                warn!("Directory size check timed out for {}", path);
             } else {
                 debug!("Failed to get size for directory {}: {}", path, stderr);
             }
@@ -483,25 +490,6 @@ impl SystemdCollector {
         }
     }
 
-    /// Get service memory usage (if available) 
-    fn get_service_memory(&self, service: &str) -> Option<f32> {
-        let output = Command::new("systemctl")
-            .args(&["show", &format!("{}.service", service), "--property=MemoryCurrent"])
-            .output()
-            .ok()?;
-
-        let output_str = String::from_utf8(output.stdout).ok()?;
-        for line in output_str.lines() {
-            if line.starts_with("MemoryCurrent=") {
-                let memory_str = line.strip_prefix("MemoryCurrent=")?;
-                if let Ok(memory_bytes) = memory_str.parse::<u64>() {
-                    return Some(memory_bytes as f32 / (1024.0 * 1024.0)); // Convert to MB
-                }
-            }
-        }
-        None
-    }
-
     /// Calculate service status, taking user-stopped services into account
     fn calculate_service_status(&self, service_name: &str, active_status: &str) -> Status {
         match active_status.to_lowercase().as_str() {
@@ -559,16 +547,6 @@ impl SystemdCollector {
         }
     }
 
-    /// Get cached service data if available and fresh
-    fn get_cached_services(&self) -> Option<Vec<ServiceInfo>> {
-        if !self.should_update_cache() {
-            let state = self.state.read().unwrap();
-            Some(state.services.clone())
-        } else {
-            None
-        }
-    }
-
     /// Get cached complete service data with sub-services if available and fresh
     fn get_cached_complete_services(&self) -> Option<Vec<ServiceData>> {
         if !self.should_update_cache() {
@@ -807,9 +785,10 @@ impl SystemdCollector {
     fn get_docker_containers(&self) -> Vec<(String, String)> {
         let mut containers = Vec::new();
 
-        // Check if docker is available
-        let output = Command::new("docker")
-            .args(&["ps", "--format", "{{.Names}},{{.Status}}"])
+        // Check if docker is available (cm-agent user is in docker group)
+        // Use -a to show ALL containers (running and stopped) with 3 second timeout
+        let output = Command::new("timeout")
+            .args(&["3", "docker", "ps", "-a", "--format", "{{.Names}},{{.Status}}"])
             .output();
 
         let output = match output {
@@ -834,10 +813,10 @@ impl SystemdCollector {
 
                 let container_status = if status_str.contains("Up") {
                     "active"
-                } else if status_str.contains("Exited") {
-                    "warning" // Match original: Exited → Warning, not inactive
+                } else if status_str.contains("Exited") || status_str.contains("Created") {
+                    "inactive" // Stopped/created containers are inactive
                 } else {
-                    "failed" // Other states → failed
+                    "failed" // Other states (restarting, paused, dead) → failed
                 };
                 
                 containers.push((format!("docker_{}", container_name), container_status.to_string()));
@@ -846,6 +825,86 @@ impl SystemdCollector {
 
         containers
     }
+
+    /// Get docker images as sub-services
+    fn get_docker_images(&self) -> Vec<(String, String, f32)> {
+        let mut images = Vec::new();
+        // Check if docker is available (cm-agent user is in docker group) with 3 second timeout
+        let output = Command::new("timeout")
+            .args(&["3", "docker", "images", "--format", "{{.Repository}}:{{.Tag}},{{.Size}}"])
+            .output();
+
+        let output = match output {
+            Ok(out) if out.status.success() => out,
+            Ok(_) => {
+                return images;
+            }
+            Err(_) => {
+                return images;
+            }
+        };
+
+        let output_str = match String::from_utf8(output.stdout) {
+            Ok(s) => s,
+            Err(_) => return images,
+        };
+
+        for line in output_str.lines() {
+            if line.trim().is_empty() {
+                continue;
+            }
+
+            let parts: Vec<&str> = line.split(',').collect();
+            if parts.len() >= 2 {
+                let image_name = parts[0].trim();
+                let size_str = parts[1].trim();
+
+                // Skip <none>:<none> images (dangling images)
+                if image_name.contains("<none>") {
+                    continue;
+                }
+
+                // Parse size to MB (sizes come as "142MB", "1.5GB", "512kB", etc.)
+                let size_mb = self.parse_docker_size(size_str);
+
+                images.push((
+                    image_name.to_string(),
+                    "inactive".to_string(), // Images are informational - use inactive for neutral display
+                    size_mb
+                ));
+            }
+        }
+
+        images
+    }
+
+    /// Parse Docker size string to MB
+    fn parse_docker_size(&self, size_str: &str) -> f32 {
+        let size_upper = size_str.to_uppercase();
+
+        // Extract numeric part and unit
+        let mut num_str = String::new();
+        let mut unit = String::new();
+
+        for ch in size_upper.chars() {
+            if ch.is_ascii_digit() || ch == '.' {
+                num_str.push(ch);
+            } else if ch.is_alphabetic() {
+                unit.push(ch);
+            }
+        }
+
+        let value: f32 = num_str.parse().unwrap_or(0.0);
+
+        // Convert to MB
+        match unit.as_str() {
+            "KB" | "K" => value / 1024.0,
+            "MB" | "M" => value,
+            "GB" | "G" => value * 1024.0,
+            "TB" | "T" => value * 1024.0 * 1024.0,
+            _ => value, // Assume bytes if no unit
+        }
+    }
 }
 
 #[async_trait]

agent/src/config/defaults.rs

@@ -1,2 +0,0 @@
-// This file is now empty - all configuration values come from config files
-// No hardcoded defaults are used

agent/src/main.rs

@@ -8,7 +8,6 @@ mod collectors;
 mod communication;
 mod config;
 mod notifications;
-mod service_tracker;
 
 use agent::Agent;
 

agent/src/service_tracker.rs

@@ -1,164 +0,0 @@
-use anyhow::Result;
-use serde::{Deserialize, Serialize};
-use std::collections::HashSet;
-use std::fs;
-use std::path::Path;
-use std::sync::{Arc, Mutex, OnceLock};
-use tracing::{debug, info, warn};
-
-/// Shared instance for global access
-static GLOBAL_TRACKER: OnceLock<Arc<Mutex<UserStoppedServiceTracker>>> = OnceLock::new();
-
-/// Tracks services that have been stopped by user action
-/// These services should be treated as OK status instead of Warning
-#[derive(Debug)]
-pub struct UserStoppedServiceTracker {
-    /// Set of services stopped by user action
-    user_stopped_services: HashSet<String>,
-    /// Path to persistent storage file
-    storage_path: String,
-}
-
-/// Serializable data structure for persistence
-#[derive(Debug, Serialize, Deserialize)]
-struct UserStoppedData {
-    services: Vec<String>,
-}
-
-impl UserStoppedServiceTracker {
-    /// Create new tracker with default storage path
-    pub fn new() -> Self {
-        Self::with_storage_path("/var/lib/cm-dashboard/user-stopped-services.json")
-    }
-
-    /// Initialize global instance (called by agent)
-    pub fn init_global() -> Result<Self> {
-        let tracker = Self::new();
-        
-        // Set global instance
-        let global_instance = Arc::new(Mutex::new(tracker));
-        if GLOBAL_TRACKER.set(global_instance).is_err() {
-            warn!("Global service tracker was already initialized");
-        }
-        
-        // Return a new instance for the agent to use
-        Ok(Self::new())
-    }
-
-    /// Check if a service is user-stopped (global access for collectors)
-    pub fn is_service_user_stopped(service_name: &str) -> bool {
-        if let Some(global) = GLOBAL_TRACKER.get() {
-            if let Ok(tracker) = global.lock() {
-                tracker.is_user_stopped(service_name)
-            } else {
-                debug!("Failed to lock global service tracker");
-                false
-            }
-        } else {
-            debug!("Global service tracker not initialized");
-            false
-        }
-    }
-
-    /// Update global tracker (called by agent when tracker state changes)
-    pub fn update_global(updated_tracker: &UserStoppedServiceTracker) {
-        if let Some(global) = GLOBAL_TRACKER.get() {
-            if let Ok(mut tracker) = global.lock() {
-                tracker.user_stopped_services = updated_tracker.user_stopped_services.clone();
-            } else {
-                debug!("Failed to lock global service tracker for update");
-            }
-        } else {
-            debug!("Global service tracker not initialized for update");
-        }
-    }
-
-    /// Create new tracker with custom storage path
-    pub fn with_storage_path<P: AsRef<Path>>(storage_path: P) -> Self {
-        let storage_path = storage_path.as_ref().to_string_lossy().to_string();
-        let mut tracker = Self {
-            user_stopped_services: HashSet::new(),
-            storage_path,
-        };
-
-        // Load existing data from storage
-        if let Err(e) = tracker.load_from_storage() {
-            warn!("Failed to load user-stopped services from storage: {}", e);
-            info!("Starting with empty user-stopped services list");
-        }
-
-        tracker
-    }
-
-
-    /// Clear user-stopped flag for a service (when user starts it)
-    pub fn clear_user_stopped(&mut self, service_name: &str) -> Result<()> {
-        if self.user_stopped_services.remove(service_name) {
-            info!("Cleared user-stopped flag for service '{}'", service_name);
-            self.save_to_storage()?;
-            debug!("Service '{}' user-stopped flag cleared and saved to storage", service_name);
-        } else {
-            debug!("Service '{}' was not marked as user-stopped", service_name);
-        }
-        Ok(())
-    }
-
-    /// Check if a service is marked as user-stopped
-    pub fn is_user_stopped(&self, service_name: &str) -> bool {
-        let is_stopped = self.user_stopped_services.contains(service_name);
-        debug!("Service '{}' user-stopped status: {}", service_name, is_stopped);
-        is_stopped
-    }
-
-
-    /// Save current state to persistent storage
-    fn save_to_storage(&self) -> Result<()> {
-        // Create parent directory if it doesn't exist
-        if let Some(parent_dir) = Path::new(&self.storage_path).parent() {
-            if !parent_dir.exists() {
-                fs::create_dir_all(parent_dir)?;
-                debug!("Created parent directory: {}", parent_dir.display());
-            }
-        }
-
-        let data = UserStoppedData {
-            services: self.user_stopped_services.iter().cloned().collect(),
-        };
-
-        let json_data = serde_json::to_string_pretty(&data)?;
-        fs::write(&self.storage_path, json_data)?;
-
-        debug!(
-            "Saved {} user-stopped services to {}",
-            data.services.len(),
-            self.storage_path
-        );
-        Ok(())
-    }
-
-    /// Load state from persistent storage
-    fn load_from_storage(&mut self) -> Result<()> {
-        if !Path::new(&self.storage_path).exists() {
-            debug!("Storage file {} does not exist, starting fresh", self.storage_path);
-            return Ok(());
-        }
-
-        let json_data = fs::read_to_string(&self.storage_path)?;
-        let data: UserStoppedData = serde_json::from_str(&json_data)?;
-
-        self.user_stopped_services = data.services.into_iter().collect();
-
-        info!(
-            "Loaded {} user-stopped services from {}",
-            self.user_stopped_services.len(),
-            self.storage_path
-        );
-
-        if !self.user_stopped_services.is_empty() {
-            debug!("User-stopped services: {:?}", self.user_stopped_services);
-        }
-
-        Ok(())
-    }
-}
-

agent_stream.log

@@ -1,1001 +0,0 @@
-warning: fields `total_services`, `backup_disk_filesystem_label`, `services_completed_count`, `services_failed_count`, and `services_disabled_count` are never read
-  --> dashboard/src/ui/widgets/backup.rs:22:5
-   |
-14 | pub struct BackupWidget {
-   |            ------------ fields in this struct
-...
-22 |     total_services: Option<i64>,
-   |     ^^^^^^^^^^^^^^
-...
-36 |     backup_disk_filesystem_label: Option<String>,
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-37 |     /// Number of completed services
-38 |     services_completed_count: Option<i64>,
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^
-39 |     /// Number of failed services
-40 |     services_failed_count: Option<i64>,
-   |     ^^^^^^^^^^^^^^^^^^^^^
-41 |     /// Number of disabled services
-42 |     services_disabled_count: Option<i64>,
-   |     ^^^^^^^^^^^^^^^^^^^^^^^
-   |
-   = note: `BackupWidget` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
-   = note: `#[warn(dead_code)]` on by default
-
-warning: field `exit_code` is never read
-  --> dashboard/src/ui/widgets/backup.rs:53:5
-   |
-50 | struct ServiceMetricData {
-   |        ----------------- field in this struct
-...
-53 |     exit_code: Option<i64>,
-   |     ^^^^^^^^^
-   |
-   = note: `ServiceMetricData` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
-
-warning: associated function `extract_service_name` is never used
-   --> dashboard/src/ui/widgets/backup.rs:115:8
-    |
- 58 | impl BackupWidget {
-    | ----------------- associated function in this implementation
-...
-115 |     fn extract_service_name(metric_name: &str) -> Option<String> {
-    |        ^^^^^^^^^^^^^^^^^^^^
-
-warning: method `update_from_metrics` is never used
-   --> dashboard/src/ui/widgets/backup.rs:157:8
-    |
-156 | impl BackupWidget {
-    | ----------------- method in this implementation
-157 |     fn update_from_metrics(&mut self, metrics: &[&Metric]) {
-    |        ^^^^^^^^^^^^^^^^^^^
-
-warning: associated function `extract_service_info` is never used
-  --> dashboard/src/ui/widgets/services.rs:50:8
-   |
-38 | impl ServicesWidget {
-   | ------------------- associated function in this implementation
-...
-50 |     fn extract_service_info(metric_name: &str) -> Option<(String, Option<String>)> {
-   |        ^^^^^^^^^^^^^^^^^^^^
-
-warning: method `update_from_metrics` is never used
-   --> dashboard/src/ui/widgets/services.rs:285:8
-    |
-284 | impl ServicesWidget {
-    | ------------------- method in this implementation
-285 |     fn update_from_metrics(&mut self, metrics: &[&Metric]) {
-    |        ^^^^^^^^^^^^^^^^^^^
-
-warning: field `health_status` is never read
-  --> dashboard/src/ui/widgets/system.rs:53:5
-   |
-43 | struct StoragePool {
-   |        ----------- field in this struct
-...
-53 |     health_status: Status, // Separate status for pool health vs usage
-   |     ^^^^^^^^^^^^^
-   |
-   = note: `StoragePool` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
-
-warning: `cm-dashboard` (bin "cm-dashboard") generated 7 warnings
-    Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.16s
-     Running `target/debug/cm-dashboard --headless --raw-data`
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-    "last_run": null,
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-────────────────────────────────────────────────────────────────────────────────
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-  "hostname": "cmbox",
-  "agent_version": "v0.1.133",
-  "timestamp": 1763936509,
-  "system": {
-    "cpu": {
-      "load_1min": 0.0,
-      "load_5min": 0.0,
-      "load_15min": 0.0,
-      "frequency_mhz": 0.0,
-      "temperature_celsius": null
-    },
-    "memory": {
-      "usage_percent": 0.0,
-      "total_gb": 0.0,
-      "used_gb": 0.0,
-      "available_gb": 0.0,
-      "swap_total_gb": 0.0,
-      "swap_used_gb": 0.0,
-      "tmpfs": []
-    },
-    "storage": {
-      "drives": [],
-      "pools": []
-    }
-  },
-  "services": [],
-  "backup": {
-    "status": "unknown",
-    "last_run": null,
-    "next_scheduled": null,
-    "total_size_gb": null,
-    "repository_health": null
-  }
-}
-────────────────────────────────────────────────────────────────────────────────
-RAW AGENT DATA FROM cmbox:
-{
-  "hostname": "cmbox",
-  "agent_version": "v0.1.133",
-  "timestamp": 1763936510,
-  "system": {
-    "cpu": {
-      "load_1min": 1.75,
-      "load_5min": 2.08,
-      "load_15min": 2.1,
-      "frequency_mhz": 3638.71,
-      "temperature_celsius": 56.0
-    },
-    "memory": {
-      "usage_percent": 27.014532,
-      "total_gb": 23.339516,
-      "used_gb": 6.3050613,
-      "available_gb": 17.034454,
-      "swap_total_gb": 14.634708,
-      "swap_used_gb": 0.17599106,
-      "tmpfs": [
-        {
-          "mount": "/tmp",
-          "usage_percent": 15.095139,
-          "used_gb": 0.30190277,
-          "total_gb": 2.0
-        }
-      ]
-    },
-    "storage": {
-      "drives": [
-        {
-          "name": "nvme0n1",
-          "health": "PASSED",
-          "temperature_celsius": 28.0,
-          "wear_percent": 1.0,
-          "filesystems": [
-            {
-              "mount": "root",
-              "usage_percent": 24.404377,
-              "used_gb": 226.51398,
-              "total_gb": 928.1695
-            },
-            {
-              "mount": "boot",
-              "usage_percent": 10.666672,
-              "used_gb": 0.10645676,
-              "total_gb": 0.9980316
-            }
-          ]
-        }
-      ],
-      "pools": []
-    }
-  },
-  "services": [
-    {
-      "name": "tailscaled",
-      "status": "active",
-      "memory_mb": 25.59375,
-      "disk_gb": 0.0,
-      "user_stopped": false
-    },
-    {
-      "name": "sshd",
-      "status": "active",
-      "memory_mb": 4.3085938,
-      "disk_gb": 0.0,
-      "user_stopped": false
-    }
-  ],
-  "backup": {
-    "status": "unknown",
-    "last_run": null,
-    "next_scheduled": null,
-    "total_size_gb": null,
-    "repository_health": null
-  }
-}
-────────────────────────────────────────────────────────────────────────────────
-RAW AGENT DATA FROM cmbox:
-{
-  "hostname": "cmbox",
-  "agent_version": "v0.1.133",
-  "timestamp": 1763936511,
-  "system": {
-    "cpu": {
-      "load_1min": 1.75,
-      "load_5min": 2.08,
-      "load_15min": 2.1,
-      "frequency_mhz": 3638.71,
-      "temperature_celsius": 56.0
-    },
-    "memory": {
-      "usage_percent": 27.014532,
-      "total_gb": 23.339516,
-      "used_gb": 6.3050613,
-      "available_gb": 17.034454,
-      "swap_total_gb": 14.634708,
-      "swap_used_gb": 0.17599106,
-      "tmpfs": [
-        {
-          "mount": "/tmp",
-          "usage_percent": 15.095139,
-          "used_gb": 0.30190277,
-          "total_gb": 2.0
-        }
-      ]
-    },
-    "storage": {
-      "drives": [
-        {
-          "name": "nvme0n1",
-          "health": "PASSED",
-          "temperature_celsius": 28.0,
-          "wear_percent": 1.0,
-          "filesystems": [
-            {
-              "mount": "root",
-              "usage_percent": 24.404377,
-              "used_gb": 226.51398,
-              "total_gb": 928.1695
-            },
-            {
-              "mount": "boot",
-              "usage_percent": 10.666672,
-              "used_gb": 0.10645676,
-              "total_gb": 0.9980316
-            }
-          ]
-        }
-      ],
-      "pools": []
-    }
-  },
-  "services": [
-    {
-      "name": "tailscaled",
-      "status": "active",
-      "memory_mb": 25.59375,
-      "disk_gb": 0.0,
-      "user_stopped": false
-    },
-    {
-      "name": "sshd",
-      "status": "active",
-      "memory_mb": 4.3085938,
-      "disk_gb": 0.0,
-      "user_stopped": false
-    }
-  ],
-  "backup": {
-    "status": "unknown",
-    "last_run": null,
-    "next_scheduled": null,
-    "total_size_gb": null,
-    "repository_health": null
-  }
-}
-────────────────────────────────────────────────────────────────────────────────
-RAW AGENT DATA FROM cmbox:
-{
-  "hostname": "cmbox",
-  "agent_version": "v0.1.133",
-  "timestamp": 1763936512,
-  "system": {
-    "cpu": {
-      "load_1min": 1.75,
-      "load_5min": 2.08,
-      "load_15min": 2.1,
-      "frequency_mhz": 3638.71,
-      "temperature_celsius": 56.0
-    },
-    "memory": {
-      "usage_percent": 27.014532,
-      "total_gb": 23.339516,
-      "used_gb": 6.3050613,
-      "available_gb": 17.034454,
-      "swap_total_gb": 14.634708,
-      "swap_used_gb": 0.17599106,
-      "tmpfs": [
-        {
-          "mount": "/tmp",
-          "usage_percent": 15.095139,
-          "used_gb": 0.30190277,
-          "total_gb": 2.0
-        }
-      ]
-    },
-    "storage": {
-      "drives": [
-        {
-          "name": "nvme0n1",
-          "health": "PASSED",
-          "temperature_celsius": 28.0,
-          "wear_percent": 1.0,
-          "filesystems": [
-            {
-              "mount": "root",
-              "usage_percent": 24.404377,
-              "used_gb": 226.51398,
-              "total_gb": 928.1695
-            },
-            {
-              "mount": "boot",
-              "usage_percent": 10.666672,
-              "used_gb": 0.10645676,
-              "total_gb": 0.9980316
-            }
-          ]
-        }
-      ],
-      "pools": []
-    }
-  },
-  "services": [
-    {
-      "name": "tailscaled",
-      "status": "active",
-      "memory_mb": 25.59375,
-      "disk_gb": 0.0,
-      "user_stopped": false
-    },
-    {
-      "name": "sshd",
-      "status": "active",
-      "memory_mb": 4.3085938,
-      "disk_gb": 0.0,
-      "user_stopped": false
-    }
-  ],
-  "backup": {
-    "status": "unknown",
-    "last_run": null,
-    "next_scheduled": null,
-    "total_size_gb": null,
-    "repository_health": null
-  }
-}
-────────────────────────────────────────────────────────────────────────────────
-Terminated

dashboard/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "cm-dashboard"
-version = "0.1.154"
+version = "0.1.202"
 edition = "2021"
 
 [dependencies]

dashboard/src/app.rs

@@ -20,13 +20,12 @@ pub struct Dashboard {
     tui_app: Option<TuiApp>,
     terminal: Option<Terminal<CrosstermBackend<io::Stdout>>>,
     headless: bool,
-    raw_data: bool,
     initial_commands_sent: std::collections::HashSet<String>,
     config: DashboardConfig,
 }
 
 impl Dashboard {
-    pub async fn new(config_path: Option<String>, headless: bool, raw_data: bool) -> Result<Self> {
+    pub async fn new(config_path: Option<String>, headless: bool) -> Result<Self> {
         info!("Initializing dashboard");
 
         // Load configuration - try default path if not specified
@@ -120,7 +119,6 @@ impl Dashboard {
             tui_app,
             terminal,
             headless,
-            raw_data,
             initial_commands_sent: std::collections::HashSet::new(),
             config,
         })
@@ -205,13 +203,6 @@ impl Dashboard {
                             .insert(agent_data.hostname.clone());
                     }
 
-                    // Show raw data if requested (before processing)
-                    if self.raw_data {
-                        println!("RAW AGENT DATA FROM {}:", agent_data.hostname);
-                        println!("{}", serde_json::to_string_pretty(&agent_data).unwrap_or_else(|e| format!("Serialization error: {}", e)));
-                        println!("{}", "─".repeat(80));
-                    }
-
                     // Store structured data directly
                     self.metric_store.store_agent_data(agent_data);
 
@@ -224,7 +215,7 @@ impl Dashboard {
 
                     // Update TUI with new metrics (only if not headless)
                     if let Some(ref mut tui_app) = self.tui_app {
-                        tui_app.update_metrics(&self.metric_store);
+                        tui_app.update_metrics(&mut self.metric_store);
                     }
                 }
                 

dashboard/src/main.rs

@@ -51,10 +51,6 @@ struct Cli {
     /// Run in headless mode (no TUI, just logging)
     #[arg(long)]
     headless: bool,
-
-    /// Show raw agent data in headless mode
-    #[arg(long)]
-    raw_data: bool,
 }
 
 #[tokio::main]
@@ -90,7 +86,7 @@ async fn main() -> Result<()> {
     }
 
     // Create and run dashboard
-    let mut dashboard = Dashboard::new(cli.config, cli.headless, cli.raw_data).await?;
+    let mut dashboard = Dashboard::new(cli.config, cli.headless).await?;
 
     // Setup graceful shutdown
     let ctrl_c = async {

dashboard/src/metrics/store.rs

@@ -5,6 +5,14 @@ use tracing::{debug, info, warn};
 
 use super::MetricDataPoint;
 
+/// ZMQ communication statistics per host
+#[derive(Debug, Clone)]
+pub struct ZmqStats {
+    pub packets_received: u64,
+    pub last_packet_time: Instant,
+    pub last_packet_age_secs: f64,
+}
+
 /// Central metric storage for the dashboard
 pub struct MetricStore {
     /// Current structured data: hostname -> AgentData
@@ -13,6 +21,8 @@ pub struct MetricStore {
     historical_metrics: HashMap<String, Vec<MetricDataPoint>>,
     /// Last heartbeat timestamp per host
     last_heartbeat: HashMap<String, Instant>,
+    /// ZMQ communication statistics per host
+    zmq_stats: HashMap<String, ZmqStats>,
     /// Configuration
     max_metrics_per_host: usize,
     history_retention: Duration,
@@ -24,6 +34,7 @@ impl MetricStore {
             current_agent_data: HashMap::new(),
             historical_metrics: HashMap::new(),
             last_heartbeat: HashMap::new(),
+            zmq_stats: HashMap::new(),
             max_metrics_per_host,
             history_retention: Duration::from_secs(history_retention_hours * 3600),
         }
@@ -44,6 +55,16 @@ impl MetricStore {
         self.last_heartbeat.insert(hostname.clone(), now);
         debug!("Updated heartbeat for host {}", hostname);
 
+        // Update ZMQ stats
+        let stats = self.zmq_stats.entry(hostname.clone()).or_insert(ZmqStats {
+            packets_received: 0,
+            last_packet_time: now,
+            last_packet_age_secs: 0.0,
+        });
+        stats.packets_received += 1;
+        stats.last_packet_time = now;
+        stats.last_packet_age_secs = 0.0; // Just received
+
         // Add to history
         let host_history = self
             .historical_metrics
@@ -65,6 +86,15 @@ impl MetricStore {
         self.current_agent_data.get(hostname)
     }
 
+    /// Get ZMQ communication statistics for a host
+    pub fn get_zmq_stats(&mut self, hostname: &str) -> Option<ZmqStats> {
+        let now = Instant::now();
+        self.zmq_stats.get_mut(hostname).map(|stats| {
+            // Update packet age
+            stats.last_packet_age_secs = now.duration_since(stats.last_packet_time).as_secs_f64();
+            stats.clone()
+        })
+    }
 
     /// Get connected hosts (hosts with recent heartbeats)
     pub fn get_connected_hosts(&self, timeout: Duration) -> Vec<String> {

dashboard/src/ui/mod.rs

@@ -100,7 +100,7 @@ impl TuiApp {
     }
 
     /// Update widgets with structured data from store (only for current host)
-    pub fn update_metrics(&mut self, metric_store: &MetricStore) {
+    pub fn update_metrics(&mut self, metric_store: &mut MetricStore) {
         if let Some(hostname) = self.current_host.clone() {
             // Get structured data for this host
             if let Some(agent_data) = metric_store.get_agent_data(&hostname) {
@@ -110,6 +110,14 @@ impl TuiApp {
                 host_widgets.system_widget.update_from_agent_data(agent_data);
                 host_widgets.services_widget.update_from_agent_data(agent_data);
 
+                // Update ZMQ stats
+                if let Some(zmq_stats) = metric_store.get_zmq_stats(&hostname) {
+                    host_widgets.system_widget.update_zmq_stats(
+                        zmq_stats.packets_received,
+                        zmq_stats.last_packet_age_secs
+                    );
+                }
+
                 host_widgets.last_update = Some(Instant::now());
             }
         }

dashboard/src/ui/theme.rs

@@ -225,9 +225,6 @@ impl Layout {
     pub const LEFT_PANEL_WIDTH: u16 = 45;
     /// Right panel percentage (services)
     pub const RIGHT_PANEL_WIDTH: u16 = 55;
-    /// System vs backup split (equal)
-    pub const SYSTEM_PANEL_HEIGHT: u16 = 50;
-    pub const BACKUP_PANEL_HEIGHT: u16 = 50;
 }
 
 /// Typography system

dashboard/src/ui/widgets/cpu.rs

@@ -1 +0,0 @@
-// This file is intentionally left minimal - CPU functionality is handled by the SystemWidget

dashboard/src/ui/widgets/memory.rs

@@ -1 +0,0 @@
-// This file is intentionally left minimal - Memory functionality is handled by the SystemWidget

dashboard/src/ui/widgets/mod.rs

@@ -1,7 +1,5 @@
 use cm_dashboard_shared::AgentData;
 
-pub mod cpu;
-pub mod memory;
 pub mod services;
 pub mod system;
 

dashboard/src/ui/widgets/services.rs

@@ -32,6 +32,7 @@ struct ServiceInfo {
     disk_gb: Option<f32>,
     metrics: Vec<(String, f32, Option<String>)>, // (label, value, unit)
     widget_status: Status,
+    service_type: String, // "nginx_site", "container", "image", or empty for parent services
 }
 
 impl ServicesWidget {
@@ -179,32 +180,62 @@ impl ServicesWidget {
         };
         let tree_symbol = if is_last { "└─" } else { "├─" };
 
-        vec![
-            // Indentation and tree prefix
-            ratatui::text::Span::styled(
-                format!("  {} ", tree_symbol),
-                Typography::tree(),
-            ),
-            // Status icon
-            ratatui::text::Span::styled(
-                format!("{} ", icon),
-                Style::default().fg(status_color).bg(Theme::background()),
-            ),
-            // Service name
-            ratatui::text::Span::styled(
-                format!("{:<18} ", short_name),
-                Style::default()
-                    .fg(Theme::secondary_text())
-                    .bg(Theme::background()),
-            ),
-            // Status/latency text
-            ratatui::text::Span::styled(
-                status_str,
-                Style::default()
-                    .fg(Theme::secondary_text())
-                    .bg(Theme::background()),
-            ),
-        ]
+        // Docker images use docker whale icon
+        if info.service_type == "image" {
+            vec![
+                // Indentation and tree prefix
+                ratatui::text::Span::styled(
+                    format!("  {} ", tree_symbol),
+                    Typography::tree(),
+                ),
+                // Docker icon (simple character for performance)
+                ratatui::text::Span::styled(
+                    "D ".to_string(),
+                    Style::default().fg(Theme::highlight()).bg(Theme::background()),
+                ),
+                // Service name
+                ratatui::text::Span::styled(
+                    format!("{:<18} ", short_name),
+                    Style::default()
+                        .fg(Theme::secondary_text())
+                        .bg(Theme::background()),
+                ),
+                // Status/metrics text
+                ratatui::text::Span::styled(
+                    status_str,
+                    Style::default()
+                        .fg(Theme::secondary_text())
+                        .bg(Theme::background()),
+                ),
+            ]
+        } else {
+            vec![
+                // Indentation and tree prefix
+                ratatui::text::Span::styled(
+                    format!("  {} ", tree_symbol),
+                    Typography::tree(),
+                ),
+                // Status icon
+                ratatui::text::Span::styled(
+                    format!("{} ", icon),
+                    Style::default().fg(status_color).bg(Theme::background()),
+                ),
+                // Service name
+                ratatui::text::Span::styled(
+                    format!("{:<18} ", short_name),
+                    Style::default()
+                        .fg(Theme::secondary_text())
+                        .bg(Theme::background()),
+                ),
+                // Status/latency text
+                ratatui::text::Span::styled(
+                    status_str,
+                    Style::default()
+                        .fg(Theme::secondary_text())
+                        .bg(Theme::background()),
+                ),
+            ]
+        }
     }
 
     /// Move selection up
@@ -282,6 +313,7 @@ impl Widget for ServicesWidget {
                 disk_gb: Some(service.disk_gb),
                 metrics: Vec::new(), // Parent services don't have custom metrics
                 widget_status: service.service_status,
+                service_type: String::new(), // Parent services have no type
             };
             self.parent_services.insert(service.name.clone(), parent_info);
 
@@ -299,6 +331,7 @@ impl Widget for ServicesWidget {
                         disk_gb: None,   // Not used for sub-services
                         metrics,
                         widget_status: sub_service.service_status,
+                        service_type: sub_service.service_type.clone(),
                     };
                     sub_list.push((sub_service.name.clone(), sub_info));
                 }
@@ -342,6 +375,7 @@ impl ServicesWidget {
                                     disk_gb: None,
                                     metrics: Vec::new(),
                                     widget_status: Status::Unknown,
+                                    service_type: String::new(),
                                 });
 
                         if metric.name.ends_with("_status") {
@@ -377,6 +411,7 @@ impl ServicesWidget {
                                     disk_gb: None,
                                     metrics: Vec::new(),
                                     widget_status: Status::Unknown,
+                                    service_type: String::new(), // Unknown type in legacy path
                                 },
                             ));
                             &mut sub_service_list.last_mut().unwrap().1

dashboard/src/ui/widgets/system.rs

@@ -8,13 +8,20 @@ use ratatui::{
 
 use crate::ui::theme::{StatusIcons, Typography};
 
-/// System widget displaying NixOS info, CPU, RAM, and Storage in unified layout
+/// System widget displaying NixOS info, Network, CPU, RAM, and Storage in unified layout
 #[derive(Clone)]
 pub struct SystemWidget {
     // NixOS information
     nixos_build: Option<String>,
     agent_hash: Option<String>,
 
+    // ZMQ communication stats
+    zmq_packets_received: Option<u64>,
+    zmq_last_packet_age: Option<f64>,
+
+    // Network interfaces
+    network_interfaces: Vec<cm_dashboard_shared::NetworkInterfaceData>,
+
     // CPU metrics
     cpu_load_1min: Option<f32>,
     cpu_load_5min: Option<f32>,
@@ -89,6 +96,9 @@ impl SystemWidget {
         Self {
             nixos_build: None,
             agent_hash: None,
+            zmq_packets_received: None,
+            zmq_last_packet_age: None,
+            network_interfaces: Vec::new(),
             cpu_load_1min: None,
             cpu_load_5min: None,
             cpu_load_15min: None,
@@ -150,6 +160,12 @@ impl SystemWidget {
     pub fn _get_agent_hash(&self) -> Option<&String> {
         self.agent_hash.as_ref()
     }
+
+    /// Update ZMQ communication statistics
+    pub fn update_zmq_stats(&mut self, packets_received: u64, last_packet_age_secs: f64) {
+        self.zmq_packets_received = Some(packets_received);
+        self.zmq_last_packet_age = Some(last_packet_age_secs);
+    }
 }
 
 use super::Widget;
@@ -164,6 +180,9 @@ impl Widget for SystemWidget {
         // Extract build version
         self.nixos_build = agent_data.build_version.clone();
 
+        // Extract network interfaces
+        self.network_interfaces = agent_data.system.network.interfaces.clone();
+
         // Extract CPU data directly
         let cpu = &agent_data.system.cpu;
         self.cpu_load_1min = Some(cpu.load_1min);
@@ -239,8 +258,11 @@ impl SystemWidget {
             };
 
             // Add drive info
+            let display_name = drive.serial_number.as_ref()
+                .map(|s| truncate_serial(s))
+                .unwrap_or(drive.name.clone());
             let storage_drive = StorageDrive {
-                name: drive.name.clone(),
+                name: display_name,
                 temperature: drive.temperature_celsius,
                 wear_percent: drive.wear_percent,
                 status: Status::Ok,
@@ -311,7 +333,9 @@ impl SystemWidget {
                     Status::Unknown
                 };
 
-                let display_name = drive.serial_number.clone().unwrap_or(drive.name.clone());
+                let display_name = drive.serial_number.as_ref()
+                    .map(|s| truncate_serial(s))
+                    .unwrap_or(drive.name.clone());
                 let storage_drive = StorageDrive {
                     name: display_name,
                     temperature: drive.temperature_celsius,
@@ -334,7 +358,9 @@ impl SystemWidget {
                     Status::Unknown
                 };
 
-                let display_name = drive.serial_number.clone().unwrap_or(drive.name.clone());
+                let display_name = drive.serial_number.as_ref()
+                    .map(|s| truncate_serial(s))
+                    .unwrap_or(drive.name.clone());
                 let storage_drive = StorageDrive {
                     name: display_name,
                     temperature: drive.temperature_celsius,
@@ -361,12 +387,8 @@ impl SystemWidget {
             // Pool header line with type and health
             let pool_label = if pool.pool_type == "drive" {
                 // For physical drives, show the drive name with temperature and wear percentage if available
-                // Look for any drive with temp/wear data (physical drives may have drives named after the pool)
-                let drive_info = pool.drives.iter()
-                    .find(|d| d.name == pool.name)
-                    .or_else(|| pool.drives.first());
-
-                if let Some(drive) = drive_info {
+                // Physical drives only have one drive entry
+                if let Some(drive) = pool.drives.first() {
                     let mut drive_details = Vec::new();
                     if let Some(temp) = drive.temperature {
                         drive_details.push(format!("T: {}°C", temp as i32));
@@ -376,16 +398,16 @@ impl SystemWidget {
                     }
 
                     if !drive_details.is_empty() {
-                        format!("{} {}", pool.name, drive_details.join(" "))
+                        format!("{} {}", drive.name, drive_details.join(" "))
                     } else {
-                        pool.name.clone()
+                        drive.name.clone()
                     }
                 } else {
                     pool.name.clone()
                 }
             } else {
-                // For mergerfs pools, show pool name with format like "mergerfs (2+1):"
-                format!("{}:", pool.pool_type)
+                // For mergerfs pools, show pool type with mount point
+                format!("mergerfs {}:", pool.mount_point)
             };
 
             let pool_spans = StatusIcons::create_status_spans(pool.status.clone(), &pool_label);
@@ -424,7 +446,7 @@ impl SystemWidget {
                 //   └─ Mount: /srv/media
                 
                 // Pool total usage
-                let total_text = format!("Total: {:.0}% {:.1}GB/{:.1}GB",
+                let total_text = format!("{:.0}% {:.1}GB/{:.1}GB",
                     pool.usage_percent.unwrap_or(0.0),
                     pool.used_gb.unwrap_or(0.0),
                     pool.total_gb.unwrap_or(0.0)
@@ -435,22 +457,37 @@ impl SystemWidget {
                 total_spans.extend(StatusIcons::create_status_spans(Status::Ok, &total_text));
                 lines.push(Line::from(total_spans));
 
-                // Data Disks section
-                if !pool.data_drives.is_empty() {
-                    lines.push(Line::from(vec![
-                        Span::styled("  ├─ ", Typography::tree()),
-                        Span::styled("Data Disks:", Typography::secondary())
-                    ]));
-                    for (i, drive) in pool.data_drives.iter().enumerate() {
-                        let is_last = i == pool.data_drives.len() - 1;
-                        let tree_symbol = if is_last { "  │  └─ " } else { "  │  ├─ " };
-                        render_mergerfs_drive(drive, tree_symbol, &mut lines);
+                // Data drives - at same level as parity
+                let has_parity = !pool.parity_drives.is_empty();
+                for (i, drive) in pool.data_drives.iter().enumerate() {
+                    let is_last_data = i == pool.data_drives.len() - 1;
+                    let mut drive_details = Vec::new();
+                    if let Some(temp) = drive.temperature {
+                        drive_details.push(format!("T: {}°C", temp as i32));
                     }
+                    if let Some(wear) = drive.wear_percent {
+                        drive_details.push(format!("W: {}%", wear as i32));
+                    }
+
+                    let drive_text = if !drive_details.is_empty() {
+                        format!("Data_{}: {} {}", i + 1, drive.name, drive_details.join(" "))
+                    } else {
+                        format!("Data_{}: {}", i + 1, drive.name)
+                    };
+
+                    // Last data drive uses └─ if there's no parity, otherwise ├─
+                    let tree_symbol = if is_last_data && !has_parity { "  └─ " } else { "  ├─ " };
+                    let mut data_spans = vec![
+                        Span::styled(tree_symbol, Typography::tree()),
+                    ];
+                    data_spans.extend(StatusIcons::create_status_spans(drive.status.clone(), &drive_text));
+                    lines.push(Line::from(data_spans));
                 }
 
-                // Parity section
+                // Parity drives - last item(s)
                 if !pool.parity_drives.is_empty() {
-                    for drive in &pool.parity_drives {
+                    for (i, drive) in pool.parity_drives.iter().enumerate() {
+                        let is_last = i == pool.parity_drives.len() - 1;
                         let mut drive_details = Vec::new();
                         if let Some(temp) = drive.temperature {
                             drive_details.push(format!("T: {}°C", temp as i32));
@@ -460,25 +497,19 @@ impl SystemWidget {
                         }
 
                         let drive_text = if !drive_details.is_empty() {
-                            format!("{} {}", drive.name, drive_details.join(" "))
+                            format!("Parity: {} {}", drive.name, drive_details.join(" "))
                         } else {
-                            drive.name.clone()
+                            format!("Parity: {}", drive.name)
                         };
 
+                        let tree_symbol = if is_last { "  └─ " } else { "  ├─ " };
                         let mut parity_spans = vec![
-                            Span::styled("  ├─ ", Typography::tree()),
-                            Span::styled("Parity: ", Typography::secondary()),
+                            Span::styled(tree_symbol, Typography::tree()),
                         ];
                         parity_spans.extend(StatusIcons::create_status_spans(drive.status.clone(), &drive_text));
                         lines.push(Line::from(parity_spans));
                     }
                 }
-
-                // Mount point
-                lines.push(Line::from(vec![
-                    Span::styled("  └─ Mount: ", Typography::tree()),
-                    Span::styled(&pool.mount_point, Typography::secondary())
-                ]));
             }
         }
 
@@ -486,53 +517,14 @@ impl SystemWidget {
     }
 }
 
-/// Helper function to render a drive in a MergerFS pool
-fn render_mergerfs_drive<'a>(drive: &StorageDrive, tree_symbol: &'a str, lines: &mut Vec<Line<'a>>) {
-    let mut drive_details = Vec::new();
-    if let Some(temp) = drive.temperature {
-        drive_details.push(format!("T: {}°C", temp as i32));
-    }
-    if let Some(wear) = drive.wear_percent {
-        drive_details.push(format!("W: {}%", wear as i32));
-    }
-    
-    let drive_text = if !drive_details.is_empty() {
-        format!("{} {}", drive.name, drive_details.join(" "))
+/// Truncate serial number to last 8 characters
+fn truncate_serial(serial: &str) -> String {
+    let len = serial.len();
+    if len > 8 {
+        serial[len - 8..].to_string()
     } else {
-        drive.name.clone()
-    };
-    
-    let mut drive_spans = vec![
-        Span::styled(tree_symbol, Typography::tree()),
-    ];
-    drive_spans.extend(StatusIcons::create_status_spans(drive.status.clone(), &drive_text));
-    lines.push(Line::from(drive_spans));
-}
-
-/// Helper function to render a drive in a storage pool
-fn render_pool_drive(drive: &StorageDrive, is_last: bool, lines: &mut Vec<Line<'_>>) {
-    let tree_symbol = if is_last { "    └─" } else { "    ├─" };
-    
-    let mut drive_details = Vec::new();
-    if let Some(temp) = drive.temperature {
-        drive_details.push(format!("T: {}°C", temp as i32));
+        serial.to_string()
     }
-    if let Some(wear) = drive.wear_percent {
-        drive_details.push(format!("W: {}%", wear as i32));
-    }
-    
-    let drive_text = if !drive_details.is_empty() {
-        format!("● {} {}", drive.name, drive_details.join(" "))
-    } else {
-        format!("● {}", drive.name)
-    };
-    
-    let mut drive_spans = vec![
-        Span::styled(tree_symbol, Typography::tree()),
-        Span::raw(" "),
-    ];
-    drive_spans.extend(StatusIcons::create_status_spans(drive.status.clone(), &drive_text));
-    lines.push(Line::from(drive_spans));
 }
 
 impl SystemWidget {
@@ -542,6 +534,7 @@ impl SystemWidget {
 
         // First line: serial number with temperature and wear
         if let Some(serial) = &self.backup_disk_serial {
+            let truncated_serial = truncate_serial(serial);
             let mut details = Vec::new();
             if let Some(temp) = self.backup_disk_temperature {
                 details.push(format!("T: {}°C", temp as i32));
@@ -551,9 +544,9 @@ impl SystemWidget {
             }
 
             let disk_text = if !details.is_empty() {
-                format!("{} {}", serial, details.join(" "))
+                format!("{} {}", truncated_serial, details.join(" "))
             } else {
-                serial.clone()
+                truncated_serial
             };
 
             let backup_status = match self.backup_status.as_str() {
@@ -599,45 +592,205 @@ impl SystemWidget {
         lines
     }
 
-    /// Format time ago from timestamp
-    fn format_time_ago(&self, timestamp: u64) -> String {
-        let now = chrono::Utc::now().timestamp() as u64;
-        let seconds_ago = now.saturating_sub(timestamp);
-        
-        let hours = seconds_ago / 3600;
-        let minutes = (seconds_ago % 3600) / 60;
-        
-        if hours > 0 {
-            format!("{}h ago", hours)
-        } else if minutes > 0 {
-            format!("{}m ago", minutes)
-        } else {
-            "now".to_string()
+    /// Compress IPv4 addresses from same subnet
+    /// Example: "192.168.30.1, 192.168.30.100" -> "192.168.30.1, 100"
+    fn compress_ipv4_addresses(addresses: &[String]) -> String {
+        if addresses.is_empty() {
+            return String::new();
         }
+
+        if addresses.len() == 1 {
+            return addresses[0].clone();
+        }
+
+        let mut result = Vec::new();
+        let mut last_prefix = String::new();
+
+        for addr in addresses {
+            let parts: Vec<&str> = addr.split('.').collect();
+            if parts.len() == 4 {
+                let prefix = format!("{}.{}.{}", parts[0], parts[1], parts[2]);
+
+                if prefix == last_prefix {
+                    // Same subnet, show only last octet
+                    result.push(parts[3].to_string());
+                } else {
+                    // Different subnet, show full IP
+                    result.push(addr.clone());
+                    last_prefix = prefix;
+                }
+            } else {
+                // Invalid IP format, show as-is
+                result.push(addr.clone());
+            }
+        }
+
+        result.join(", ")
     }
 
-    /// Format time until from future timestamp  
-    fn format_time_until(&self, timestamp: u64) -> String {
-        let now = chrono::Utc::now().timestamp() as u64;
-        if timestamp <= now {
-            return "overdue".to_string();
+    /// Render network section for display with physical/virtual grouping
+    fn render_network(&self) -> Vec<Line<'_>> {
+        let mut lines = Vec::new();
+
+        if self.network_interfaces.is_empty() {
+            return lines;
         }
 
-        let seconds_until = timestamp - now;
-        let hours = seconds_until / 3600;
-        let minutes = (seconds_until % 3600) / 60;
+        // Separate physical and virtual interfaces
+        let physical: Vec<_> = self.network_interfaces.iter().filter(|i| i.is_physical).collect();
+        let virtual_interfaces: Vec<_> = self.network_interfaces.iter().filter(|i| !i.is_physical).collect();
 
-        if hours > 0 {
-            format!("in {}h", hours)
-        } else if minutes > 0 {
-            format!("in {}m", minutes)
-        } else {
-            "soon".to_string()
+        // Find standalone virtual interfaces (those without a parent)
+        let mut standalone_virtual: Vec<_> = virtual_interfaces.iter()
+            .filter(|i| i.parent_interface.is_none())
+            .collect();
+
+        // Sort standalone virtual: VLANs first (by VLAN ID), then others alphabetically
+        standalone_virtual.sort_by(|a, b| {
+            match (a.vlan_id, b.vlan_id) {
+                (Some(vlan_a), Some(vlan_b)) => vlan_a.cmp(&vlan_b),
+                (Some(_), None) => std::cmp::Ordering::Less,
+                (None, Some(_)) => std::cmp::Ordering::Greater,
+                (None, None) => a.name.cmp(&b.name),
+            }
+        });
+
+        // Render physical interfaces with their children
+        for (phy_idx, interface) in physical.iter().enumerate() {
+            let is_last_physical = phy_idx == physical.len() - 1 && standalone_virtual.is_empty();
+
+            // Physical interface header with status icon
+            let mut header_spans = vec![];
+            header_spans.extend(StatusIcons::create_status_spans(
+                interface.link_status.clone(),
+                &format!("{}:", interface.name)
+            ));
+            lines.push(Line::from(header_spans));
+
+            // Find child interfaces for this physical interface
+            let mut children: Vec<_> = virtual_interfaces.iter()
+                .filter(|vi| {
+                    if let Some(parent) = &vi.parent_interface {
+                        parent == &interface.name
+                    } else {
+                        false
+                    }
+                })
+                .collect();
+
+            // Sort children: VLANs first (by VLAN ID), then others alphabetically
+            children.sort_by(|a, b| {
+                match (a.vlan_id, b.vlan_id) {
+                    (Some(vlan_a), Some(vlan_b)) => vlan_a.cmp(&vlan_b),
+                    (Some(_), None) => std::cmp::Ordering::Less,
+                    (None, Some(_)) => std::cmp::Ordering::Greater,
+                    (None, None) => a.name.cmp(&b.name),
+                }
+            });
+
+            // Count total items under this physical interface (IPs + children)
+            let ip_count = interface.ipv4_addresses.len() + interface.ipv6_addresses.len();
+            let total_children = ip_count + children.len();
+            let mut child_index = 0;
+
+            // IPv4 addresses on the physical interface itself
+            for ipv4 in &interface.ipv4_addresses {
+                child_index += 1;
+                let is_last = child_index == total_children && is_last_physical;
+                let tree_symbol = if is_last { "  └─ " } else { "  ├─ " };
+                lines.push(Line::from(vec![
+                    Span::styled(tree_symbol, Typography::tree()),
+                    Span::styled(format!("ip: {}", ipv4), Typography::secondary()),
+                ]));
+            }
+
+            // IPv6 addresses on the physical interface itself
+            for ipv6 in &interface.ipv6_addresses {
+                child_index += 1;
+                let is_last = child_index == total_children && is_last_physical;
+                let tree_symbol = if is_last { "  └─ " } else { "  ├─ " };
+                lines.push(Line::from(vec![
+                    Span::styled(tree_symbol, Typography::tree()),
+                    Span::styled(format!("ip: {}", ipv6), Typography::secondary()),
+                ]));
+            }
+
+            // Child virtual interfaces (VLANs, etc.)
+            for child in children {
+                child_index += 1;
+                let is_last = child_index == total_children && is_last_physical;
+                let tree_symbol = if is_last { "  └─ " } else { "  ├─ " };
+
+                let ip_text = if !child.ipv4_addresses.is_empty() {
+                    Self::compress_ipv4_addresses(&child.ipv4_addresses)
+                } else if !child.ipv6_addresses.is_empty() {
+                    child.ipv6_addresses.join(", ")
+                } else {
+                    String::new()
+                };
+
+                // Format: "name (vlan X): IP" or "name: IP"
+                let child_text = if let Some(vlan_id) = child.vlan_id {
+                    if !ip_text.is_empty() {
+                        format!("{} (vlan {}): {}", child.name, vlan_id, ip_text)
+                    } else {
+                        format!("{} (vlan {}):", child.name, vlan_id)
+                    }
+                } else {
+                    if !ip_text.is_empty() {
+                        format!("{}: {}", child.name, ip_text)
+                    } else {
+                        format!("{}:", child.name)
+                    }
+                };
+
+                lines.push(Line::from(vec![
+                    Span::styled(tree_symbol, Typography::tree()),
+                    Span::styled(child_text, Typography::secondary()),
+                ]));
+            }
         }
+
+        // Render standalone virtual interfaces (those without a parent)
+        for (virt_idx, interface) in standalone_virtual.iter().enumerate() {
+            let is_last = virt_idx == standalone_virtual.len() - 1;
+            let tree_symbol = if is_last { "  └─ " } else { "  ├─ " };
+
+            // Virtual interface with IPs
+            let ip_text = if !interface.ipv4_addresses.is_empty() {
+                Self::compress_ipv4_addresses(&interface.ipv4_addresses)
+            } else if !interface.ipv6_addresses.is_empty() {
+                interface.ipv6_addresses.join(", ")
+            } else {
+                String::new()
+            };
+
+            // Format: "name (vlan X): IP" or "name: IP"
+            let interface_text = if let Some(vlan_id) = interface.vlan_id {
+                if !ip_text.is_empty() {
+                    format!("{} (vlan {}): {}", interface.name, vlan_id, ip_text)
+                } else {
+                    format!("{} (vlan {}):", interface.name, vlan_id)
+                }
+            } else {
+                if !ip_text.is_empty() {
+                    format!("{}: {}", interface.name, ip_text)
+                } else {
+                    format!("{}:", interface.name)
+                }
+            };
+
+            lines.push(Line::from(vec![
+                Span::styled(tree_symbol, Typography::tree()),
+                Span::styled(interface_text, Typography::secondary()),
+            ]));
+        }
+
+        lines
     }
 
     /// Render system widget
-    pub fn render(&mut self, frame: &mut Frame, area: Rect, hostname: &str, config: Option<&crate::config::DashboardConfig>) {
+    pub fn render(&mut self, frame: &mut Frame, area: Rect, hostname: &str, _config: Option<&crate::config::DashboardConfig>) {
         let mut lines = Vec::new();
 
         // NixOS section
@@ -655,17 +808,18 @@ impl SystemWidget {
             Span::styled(format!("Agent: {}", agent_version_text), Typography::secondary())
         ]));
 
-        // Display detected connection IP
-        if let Some(config) = config {
-            if let Some(host_details) = config.hosts.get(hostname) {
-                let detected_ip = host_details.get_connection_ip(hostname);
-                lines.push(Line::from(vec![
-                    Span::styled(format!("IP: {}", detected_ip), Typography::secondary())
-                ]));
-            }
+        // ZMQ communication stats
+        if let (Some(packets), Some(age)) = (self.zmq_packets_received, self.zmq_last_packet_age) {
+            let age_text = if age < 1.0 {
+                format!("{:.0}ms ago", age * 1000.0)
+            } else {
+                format!("{:.1}s ago", age)
+            };
+            lines.push(Line::from(vec![
+                Span::styled(format!("ZMQ: {} pkts, last {}", packets, age_text), Typography::secondary())
+            ]));
         }
 
-
         // CPU section
         lines.push(Line::from(vec![
             Span::styled("CPU:", Typography::widget_title())
@@ -720,6 +874,16 @@ impl SystemWidget {
             lines.push(Line::from(tmpfs_spans));
         }
 
+        // Network section
+        if !self.network_interfaces.is_empty() {
+            lines.push(Line::from(vec![
+                Span::styled("Network:", Typography::widget_title())
+            ]));
+
+            let network_lines = self.render_network();
+            lines.extend(network_lines);
+        }
+
         // Storage section
         lines.push(Line::from(vec![
             Span::styled("Storage:", Typography::widget_title())

shared/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "cm-dashboard-shared"
-version = "0.1.154"
+version = "0.1.202"
 edition = "2021"
 
 [dependencies]

shared/src/agent_data.rs

@@ -16,11 +16,30 @@ pub struct AgentData {
 /// System-level monitoring data
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub struct SystemData {
+    pub network: NetworkData,
     pub cpu: CpuData,
     pub memory: MemoryData,
     pub storage: StorageData,
 }
 
+/// Network interface monitoring data
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct NetworkData {
+    pub interfaces: Vec<NetworkInterfaceData>,
+}
+
+/// Individual network interface data
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct NetworkInterfaceData {
+    pub name: String,
+    pub ipv4_addresses: Vec<String>,
+    pub ipv6_addresses: Vec<String>,
+    pub is_physical: bool,
+    pub link_status: Status,
+    pub parent_interface: Option<String>,
+    pub vlan_id: Option<u16>,
+}
+
 /// CPU monitoring data
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub struct CpuData {
@@ -66,6 +85,7 @@ pub struct StorageData {
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub struct DriveData {
     pub name: String,
+    pub serial_number: Option<String>,
     pub health: String,
     pub temperature_celsius: Option<f32>,
     pub wear_percent: Option<f32>,
@@ -129,6 +149,9 @@ pub struct SubServiceData {
     pub name: String,
     pub service_status: Status,
     pub metrics: Vec<SubServiceMetric>,
+    /// Type of sub-service: "nginx_site", "container", "image"
+    #[serde(default)]
+    pub service_type: String,
 }
 
 /// Individual metric for a sub-service
@@ -170,6 +193,9 @@ impl AgentData {
             build_version: None,
             timestamp: chrono::Utc::now().timestamp() as u64,
             system: SystemData {
+                network: NetworkData {
+                    interfaces: Vec::new(),
+                },
                 cpu: CpuData {
                     load_1min: 0.0,
                     load_5min: 0.0,