Watcher/Controllers/HomeController.cs

@@ -4,8 +4,8 @@ using Microsoft.AspNetCore.Mvc;
 using Microsoft.EntityFrameworkCore;
 // Local Namespaces
 using Watcher.Data;
-using Watcher.Models;
 using Watcher.ViewModels;
+using Watcher.Services;
 
 namespace Watcher.Controllers
 {
@@ -52,9 +52,9 @@ namespace Watcher.Controllers
                     .ToListAsync(),
                 Containers = await _context.Containers
                     .OrderBy(s => s.Name)
-                    .ToListAsync()
+                    .ToListAsync(),
             };
-
+            //ViewBag.NetworkConnection = ReturnNetworkStatus();
             return View(viewModel);
         }
 
@@ -88,5 +88,10 @@ namespace Watcher.Controllers
             return PartialView("_DashboardStats", model);
         }
 
+        public String ReturnNetworkStatus()
+        {
+            return "OK";
+        }
+
     }
 }

Watcher/Program.cs

@@ -5,6 +5,7 @@ using Serilog;
 
 using Watcher.Data;
 using Watcher.Models;
+using Watcher.Services;
 //using Watcher.Services;
 //using Watcher.Workers;
 
@@ -15,7 +16,7 @@ var builder = WebApplication.CreateBuilder(args);
 // Serilog konfigurieren – nur Logs, die nicht von Microsoft stammen
 Log.Logger = new LoggerConfiguration()
     .MinimumLevel.Information()
-    .MinimumLevel.Override("Microsoft", Serilog.Events.LogEventLevel.Warning) // <--
+    .MinimumLevel.Override("Microsoft", Serilog.Events.LogEventLevel.Warning)
     .Enrich.FromLogContext()
     .WriteTo.File(
         "logs/watcher-.log",
@@ -33,6 +34,9 @@ builder.Services.AddControllersWithViews();
 // HttpContentAccessor
 builder.Services.AddHttpContextAccessor();
 
+// Background Services
+builder.Services.AddHostedService<NetworkCheck>();
+
 
 // ---------- Konfiguration ----------
 DotNetEnv.Env.Load();

Watcher/Services/NetworkCheck.cs

@@ -0,0 +1,59 @@
+using System.Composition;
+using System.Net.NetworkInformation;
+
+namespace Watcher.Services;
+public class NetworkCheck : BackgroundService
+{
+    private readonly ILogger<NetworkCheck> _logger;
+
+    public static String networkCheckResult
+    { 
+            get { return networkCheckResult; }
+            set { networkCheckResult = value; }
+
+    }
+
+    public NetworkCheck(ILogger<NetworkCheck> logger)
+    {
+        _logger = logger;
+    }
+
+    protected override async Task ExecuteAsync(CancellationToken stoppingToken)
+    {
+        var timer = new PeriodicTimer(TimeSpan.FromSeconds(30));
+
+        while (await timer.WaitForNextTickAsync(stoppingToken))
+        {
+            // Hintergrundprozess abwarten
+            await checkConnectionAsync();
+
+            // 5 Sekdunden Offset
+            await Task.Delay(TimeSpan.FromSeconds(5), stoppingToken);
+        }
+    }
+
+    public Task checkConnectionAsync()
+    {
+        _logger.LogInformation("Networkcheck started.");
+
+        string host = "8.8.8.8";
+        Ping p = new Ping();
+
+        try
+        {
+            PingReply reply = p.Send(host, 3000);
+            if (reply.Status == IPStatus.Success)
+            {
+                _logger.LogInformation("Ping successfull. Watcher is online.");
+            }
+        }
+        catch
+        {
+            _logger.LogError("Ping failed. Watcher appears to have no network connection.");
+        }
+
+        _logger.LogInformation("Networkcheck finished.");
+
+        return Task.CompletedTask;
+    }
+}

Watcher/Views/Home/_DashboardStats.cshtml

@@ -59,7 +59,7 @@
 
                     <div class="d-flex justify-content-between align-items-center mb-2">
                         <span>Netzwerk</span>
-                        <span class="badge bg-success">OK</span>
+                        <span class="badge bg-success">NetworkConnection</span>
                     </div>
                     <div class="progress mb-3" style="height: 6px;">
                         <div class="progress-bar bg-success w-100"></div>