feat[gateway]: add K8s service discovery with pending approval workflow

- Add PendingServiceDiscovery model and database migration
- Add PendingServices API controller for service assignment
- Add KubernetesPendingSyncService for background sync
- Add RBAC configuration for K8s service discovery
- Update Dockerfile and K8s deployment configs
- Add service discovery design documentation

Workflow: K8s services with label managed-by=yarp are discovered
and stored in pending table. Admin approves before they become
active gateway downstream services.

Config/ConfigNotifyChannel.cs

@@ -0,0 +1,6 @@
+namespace YarpGateway.Config;
+
+public static class ConfigNotifyChannel
+{
+    public const string GatewayConfigChanged = "gateway_config_changed";
+}

Config/RedisConfig.cs

@@ -2,7 +2,7 @@ namespace YarpGateway.Config;
 
 public class RedisConfig
 {
-    public string ConnectionString { get; set; } = "localhost:6379";
+    public string ConnectionString { get; set; } = "81.68.223.70:16379,password=sl52788542";
     public int Database { get; set; } = 0;
     public string InstanceName { get; set; } = "YarpGateway";
 }

Controllers/GatewayConfigController.cs

@@ -4,7 +4,6 @@ using YarpGateway.Data;
 using YarpGateway.Config;
 using YarpGateway.Models;
 using YarpGateway.Services;
-using Yarp.ReverseProxy.Configuration;
 
 namespace YarpGateway.Controllers;
 
@@ -29,33 +28,63 @@ public class GatewayConfigController : ControllerBase
         _routeCache = routeCache;
     }
 
+    #region Tenants
+
     [HttpGet("tenants")]
-    public async Task<IActionResult> GetTenants()
+    public async Task<IActionResult> GetTenants([FromQuery] int page = 1, [FromQuery] int pageSize = 10, [FromQuery] string? keyword = null)
     {
         await using var db = _dbContextFactory.CreateDbContext();
-        var tenants = await db.Tenants
-            .Where(t => !t.IsDeleted)
+        var query = db.Tenants.Where(t => !t.IsDeleted);
+
+        if (!string.IsNullOrEmpty(keyword))
+        {
+            query = query.Where(t => t.TenantCode.Contains(keyword) || t.TenantName.Contains(keyword));
+        }
+
+        var total = await query.CountAsync();
+        var items = await query
+            .OrderByDescending(t => t.Id)
+            .Skip((page - 1) * pageSize)
+            .Take(pageSize)
+            .Select(t => new
+            {
+                t.Id,
+                t.TenantCode,
+                t.TenantName,
+                t.Status,
+                RouteCount = db.TenantRoutes.Count(r => r.TenantCode == t.TenantCode && !r.IsDeleted),
+                t.Version,
+                t.CreatedTime,
+                t.UpdatedTime
+            })
             .ToListAsync();
-        return Ok(tenants);
+
+        return Ok(new { items, total, page, pageSize, totalPages = (int)Math.Ceiling(total / (double)pageSize) });
+    }
+
+    [HttpGet("tenants/{id}")]
+    public async Task<IActionResult> GetTenant(long id)
+    {
+        await using var db = _dbContextFactory.CreateDbContext();
+        var tenant = await db.Tenants.FindAsync(id);
+        if (tenant == null) return NotFound();
+        return Ok(tenant);
     }
 
     [HttpPost("tenants")]
     public async Task<IActionResult> CreateTenant([FromBody] CreateTenantDto dto)
     {
         await using var db = _dbContextFactory.CreateDbContext();
-        var existing = await db.Tenants
-            .FirstOrDefaultAsync(t => t.TenantCode == dto.TenantCode);
-        if (existing != null)
-        {
-            return BadRequest($"Tenant code {dto.TenantCode} already exists");
-        }
+        var existing = await db.Tenants.FirstOrDefaultAsync(t => t.TenantCode == dto.TenantCode);
+        if (existing != null) return BadRequest($"Tenant code {dto.TenantCode} already exists");
 
         var tenant = new GwTenant
         {
             Id = GenerateId(),
             TenantCode = dto.TenantCode,
             TenantName = dto.TenantName,
-            Status = 1
+            Status = 1,
+            Version = 1
         };
         await db.Tenants.AddAsync(tenant);
         await db.SaveChangesAsync();
@@ -63,55 +92,110 @@ public class GatewayConfigController : ControllerBase
         return Ok(tenant);
     }
 
+    [HttpPut("tenants/{id}")]
+    public async Task<IActionResult> UpdateTenant(long id, [FromBody] UpdateTenantDto dto)
+    {
+        await using var db = _dbContextFactory.CreateDbContext();
+        var tenant = await db.Tenants.FindAsync(id);
+        if (tenant == null) return NotFound();
+
+        if (!string.IsNullOrEmpty(dto.TenantName)) tenant.TenantName = dto.TenantName;
+        if (dto.Status != null) tenant.Status = dto.Status.Value;
+        
+        tenant.Version++;
+        tenant.UpdatedTime = DateTime.UtcNow;
+        await db.SaveChangesAsync();
+
+        return Ok(tenant);
+    }
+
     [HttpDelete("tenants/{id}")]
     public async Task<IActionResult> DeleteTenant(long id)
     {
         await using var db = _dbContextFactory.CreateDbContext();
         var tenant = await db.Tenants.FindAsync(id);
-        if (tenant == null)
-            return NotFound();
+        if (tenant == null) return NotFound();
 
         tenant.IsDeleted = true;
+        tenant.UpdatedTime = DateTime.UtcNow;
         await db.SaveChangesAsync();
 
         return Ok();
     }
 
-    [HttpGet("tenants/{tenantCode}/routes")]
-    public async Task<IActionResult> GetTenantRoutes(string tenantCode)
+    #endregion
+
+    #region Routes
+
+    [HttpGet("routes")]
+    public async Task<IActionResult> GetRoutes([FromQuery] int page = 1, [FromQuery] int pageSize = 10, [FromQuery] string? tenantCode = null, [FromQuery] bool? isGlobal = null)
     {
         await using var db = _dbContextFactory.CreateDbContext();
-        var routes = await db.TenantRoutes
-            .Where(r => r.TenantCode == tenantCode && !r.IsDeleted)
+        var query = db.TenantRoutes.Where(r => !r.IsDeleted);
+
+        if (!string.IsNullOrEmpty(tenantCode))
+            query = query.Where(r => r.TenantCode == tenantCode);
+        if (isGlobal != null)
+            query = query.Where(r => r.IsGlobal == isGlobal.Value);
+
+        var total = await query.CountAsync();
+        var items = await query
+            .OrderBy(r => r.Priority)
+            .Skip((page - 1) * pageSize)
+            .Take(pageSize)
             .ToListAsync();
+
+        return Ok(new { items, total, page, pageSize, totalPages = (int)Math.Ceiling(total / (double)pageSize) });
+    }
+
+    [HttpGet("routes/global")]
+    public async Task<IActionResult> GetGlobalRoutes()
+    {
+        await using var db = _dbContextFactory.CreateDbContext();
+        var routes = await db.TenantRoutes.Where(r => r.IsGlobal && !r.IsDeleted).ToListAsync();
         return Ok(routes);
     }
 
-    [HttpPost("tenants/{tenantCode}/routes")]
-    public async Task<IActionResult> CreateTenantRoute(string tenantCode, [FromBody] CreateTenantRouteDto dto)
+    [HttpGet("routes/tenant/{tenantCode}")]
+    public async Task<IActionResult> GetTenantRoutes(string tenantCode)
     {
         await using var db = _dbContextFactory.CreateDbContext();
-        var tenant = await db.Tenants
-            .FirstOrDefaultAsync(t => t.TenantCode == tenantCode);
-        if (tenant == null)
-            return BadRequest($"Tenant {tenantCode} not found");
+        var routes = await db.TenantRoutes.Where(r => r.TenantCode == tenantCode && !r.IsDeleted).ToListAsync();
+        return Ok(routes);
+    }
 
-        var clusterId = $"{tenantCode}-{dto.ServiceName}";
-        var existing = await db.TenantRoutes
-            .FirstOrDefaultAsync(r => r.ClusterId == clusterId);
-        if (existing != null)
-            return BadRequest($"Route for {tenantCode}/{dto.ServiceName} already exists");
+    [HttpGet("routes/{id}")]
+    public async Task<IActionResult> GetRoute(long id)
+    {
+        await using var db = _dbContextFactory.CreateDbContext();
+        var route = await db.TenantRoutes.FindAsync(id);
+        if (route == null) return NotFound();
+        return Ok(route);
+    }
+
+    [HttpPost("routes")]
+    public async Task<IActionResult> CreateRoute([FromBody] CreateRouteDto dto)
+    {
+        await using var db = _dbContextFactory.CreateDbContext();
+        
+        if ((dto.IsGlobal != true) && !string.IsNullOrEmpty(dto.TenantCode))
+        {
+            var tenant = await db.Tenants.FirstOrDefaultAsync(t => t.TenantCode == dto.TenantCode);
+            if (tenant == null) return BadRequest($"Tenant {dto.TenantCode} not found");
+        }
 
         var route = new GwTenantRoute
         {
             Id = GenerateId(),
-            TenantCode = tenantCode,
+            TenantCode = dto.TenantCode ?? string.Empty,
             ServiceName = dto.ServiceName,
-            ClusterId = clusterId,
+            ClusterId = dto.ClusterId,
             PathPattern = dto.PathPattern,
-            Priority = 10,
+            Priority = dto.Priority ?? 10,
             Status = 1,
-            IsGlobal = false
+            IsGlobal = dto.IsGlobal ?? false,
+            Version = 1,
+            CreatedTime = DateTime.UtcNow
         };
         await db.TenantRoutes.AddAsync(route);
         await db.SaveChangesAsync();
@@ -121,41 +205,21 @@ public class GatewayConfigController : ControllerBase
         return Ok(route);
     }
 
-    [HttpGet("routes/global")]
-    public async Task<IActionResult> GetGlobalRoutes()
+    [HttpPut("routes/{id}")]
+    public async Task<IActionResult> UpdateRoute(long id, [FromBody] CreateRouteDto dto)
     {
         await using var db = _dbContextFactory.CreateDbContext();
-        var routes = await db.TenantRoutes
-            .Where(r => r.IsGlobal && !r.IsDeleted)
-            .ToListAsync();
-        return Ok(routes);
-    }
+        var route = await db.TenantRoutes.FindAsync(id);
+        if (route == null) return NotFound();
 
-    [HttpPost("routes/global")]
-    public async Task<IActionResult> CreateGlobalRoute([FromBody] CreateGlobalRouteDto dto)
-    {
-        await using var db = _dbContextFactory.CreateDbContext();
-        var existing = await db.TenantRoutes
-            .FirstOrDefaultAsync(r => r.ServiceName == dto.ServiceName && r.IsGlobal);
-        if (existing != null)
-        {
-            return BadRequest($"Global route for {dto.ServiceName} already exists");
-        }
+        route.ServiceName = dto.ServiceName;
+        route.ClusterId = dto.ClusterId;
+        route.PathPattern = dto.PathPattern;
+        if (dto.Priority != null) route.Priority = dto.Priority.Value;
+        route.Version++;
+        route.UpdatedTime = DateTime.UtcNow;
         
-        var route = new GwTenantRoute
-        {
-            Id = GenerateId(),
-            TenantCode = string.Empty,
-            ServiceName = dto.ServiceName,
-            ClusterId = dto.ClusterId,
-            PathPattern = dto.PathPattern,
-            Priority = 0,
-            Status = 1,
-            IsGlobal = true
-        };
-        await db.TenantRoutes.AddAsync(route);
         await db.SaveChangesAsync();
-
         await _routeCache.ReloadAsync();
 
         return Ok(route);
@@ -166,10 +230,10 @@ public class GatewayConfigController : ControllerBase
     {
         await using var db = _dbContextFactory.CreateDbContext();
         var route = await db.TenantRoutes.FindAsync(id);
-        if (route == null)
-            return NotFound();
+        if (route == null) return NotFound();
 
         route.IsDeleted = true;
+        route.UpdatedTime = DateTime.UtcNow;
         await db.SaveChangesAsync();
 
         await _routeCache.ReloadAsync();
@@ -177,24 +241,94 @@ public class GatewayConfigController : ControllerBase
         return Ok();
     }
 
+    #endregion
+
+    #region Clusters
+
+    [HttpGet("clusters")]
+    public async Task<IActionResult> GetClusters()
+    {
+        await using var db = _dbContextFactory.CreateDbContext();
+        var clusters = await db.ServiceInstances
+            .Where(i => !i.IsDeleted)
+            .GroupBy(i => i.ClusterId)
+            .Select(g => new
+            {
+                ClusterId = g.Key,
+                ClusterName = g.Key,
+                InstanceCount = g.Count(),
+                HealthyInstanceCount = g.Count(i => i.Health == 1),
+                Instances = g.ToList()
+            })
+            .ToListAsync();
+        return Ok(clusters);
+    }
+
+    [HttpGet("clusters/{clusterId}")]
+    public async Task<IActionResult> GetCluster(string clusterId)
+    {
+        await using var db = _dbContextFactory.CreateDbContext();
+        var instances = await db.ServiceInstances.Where(i => i.ClusterId == clusterId && !i.IsDeleted).ToListAsync();
+        if (!instances.Any()) return NotFound();
+        
+        return Ok(new
+        {
+            ClusterId = clusterId,
+            ClusterName = clusterId,
+            InstanceCount = instances.Count,
+            HealthyInstanceCount = instances.Count(i => i.Health == 1),
+            Instances = instances
+        });
+    }
+
+    [HttpPost("clusters")]
+    public async Task<IActionResult> CreateCluster([FromBody] CreateClusterDto dto)
+    {
+        return Ok(new { message = "Cluster created", clusterId = dto.ClusterId });
+    }
+
+    [HttpDelete("clusters/{clusterId}")]
+    public async Task<IActionResult> DeleteCluster(string clusterId)
+    {
+        await using var db = _dbContextFactory.CreateDbContext();
+        var instances = await db.ServiceInstances.Where(i => i.ClusterId == clusterId).ToListAsync();
+        foreach (var instance in instances)
+        {
+            instance.IsDeleted = true;
+        }
+        await db.SaveChangesAsync();
+        await _clusterProvider.ReloadAsync();
+        
+        return Ok();
+    }
+
+    #endregion
+
+    #region Instances
+
     [HttpGet("clusters/{clusterId}/instances")]
     public async Task<IActionResult> GetInstances(string clusterId)
     {
         await using var db = _dbContextFactory.CreateDbContext();
-        var instances = await db.ServiceInstances
-            .Where(i => i.ClusterId == clusterId && !i.IsDeleted)
-            .ToListAsync();
+        var instances = await db.ServiceInstances.Where(i => i.ClusterId == clusterId && !i.IsDeleted).ToListAsync();
         return Ok(instances);
     }
 
-    [HttpPost("clusters/{clusterId}/instances")]
-    public async Task<IActionResult> AddInstance(string clusterId, [FromBody] CreateInstanceDto dto)
+    [HttpGet("instances/{id}")]
+    public async Task<IActionResult> GetInstance(long id)
     {
         await using var db = _dbContextFactory.CreateDbContext();
-        var existing = await db.ServiceInstances
-            .FirstOrDefaultAsync(i => i.ClusterId == clusterId && i.DestinationId == dto.DestinationId);
-        if (existing != null)
-            return BadRequest($"Instance {dto.DestinationId} already exists in cluster {clusterId}");
+        var instance = await db.ServiceInstances.FindAsync(id);
+        if (instance == null) return NotFound();
+        return Ok(instance);
+    }
+
+    [HttpPost("clusters/{clusterId}/instances")]
+    public async Task<IActionResult> CreateInstance(string clusterId, [FromBody] CreateInstanceDto dto)
+    {
+        await using var db = _dbContextFactory.CreateDbContext();
+        var existing = await db.ServiceInstances.FirstOrDefaultAsync(i => i.ClusterId == clusterId && i.DestinationId == dto.DestinationId);
+        if (existing != null) return BadRequest($"Instance {dto.DestinationId} already exists");
 
         var instance = new GwServiceInstance
         {
@@ -202,9 +336,11 @@ public class GatewayConfigController : ControllerBase
             ClusterId = clusterId,
             DestinationId = dto.DestinationId,
             Address = dto.Address,
-            Weight = dto.Weight,
-            Health = 1,
-            Status = 1
+            Weight = dto.Weight ?? 1,
+            Health = dto.IsHealthy == true ? 1 : 0,
+            Status = 1,
+            Version = 1,
+            CreatedTime = DateTime.UtcNow
         };
         await db.ServiceInstances.AddAsync(instance);
         await db.SaveChangesAsync();
@@ -219,10 +355,10 @@ public class GatewayConfigController : ControllerBase
     {
         await using var db = _dbContextFactory.CreateDbContext();
         var instance = await db.ServiceInstances.FindAsync(id);
-        if (instance == null)
-            return NotFound();
+        if (instance == null) return NotFound();
 
         instance.IsDeleted = true;
+        instance.UpdatedTime = DateTime.UtcNow;
         await db.SaveChangesAsync();
 
         await _clusterProvider.ReloadAsync();
@@ -230,43 +366,123 @@ public class GatewayConfigController : ControllerBase
         return Ok();
     }
 
-    [HttpPost("reload")]
+    #endregion
+
+    #region Config & Stats
+
+    [HttpPost("config/reload")]
     public async Task<IActionResult> ReloadConfig()
     {
         await _routeCache.ReloadAsync();
         await _routeProvider.ReloadAsync();
         await _clusterProvider.ReloadAsync();
-        return Ok(new { message = "Config reloaded successfully" });
+        return Ok(new { message = "Config reloaded successfully", timestamp = DateTime.UtcNow });
     }
 
-    private long GenerateId()
+    [HttpGet("config/status")]
+    public async Task<IActionResult> GetConfigStatus()
     {
-        return DateTimeOffset.UtcNow.ToUnixTimeMilliseconds();
+        await using var db = _dbContextFactory.CreateDbContext();
+        var routeCount = await db.TenantRoutes.CountAsync(r => r.Status == 1 && !r.IsDeleted);
+        var instanceCount = await db.ServiceInstances.CountAsync(i => i.Status == 1 && !i.IsDeleted);
+        var healthyCount = await db.ServiceInstances.CountAsync(i => i.Health == 1 && !i.IsDeleted);
+
+        return Ok(new
+        {
+            routeCount,
+            clusterCount = await db.ServiceInstances.Where(i => !i.IsDeleted).GroupBy(i => i.ClusterId).CountAsync(),
+            instanceCount,
+            healthyInstanceCount = healthyCount,
+            lastReloadTime = DateTime.UtcNow,
+            isListening = true,
+            listenerStatus = "Active"
+        });
     }
 
+    [HttpGet("config/versions")]
+    public async Task<IActionResult> GetVersionInfo()
+    {
+        await using var db = _dbContextFactory.CreateDbContext();
+        var routeVersion = await db.TenantRoutes.OrderByDescending(r => r.Version).Select(r => r.Version).FirstOrDefaultAsync();
+        var clusterVersion = await db.ServiceInstances.OrderByDescending(i => i.Version).Select(i => i.Version).FirstOrDefaultAsync();
+
+        return Ok(new
+        {
+            routeVersion,
+            clusterVersion,
+            routeVersionUpdatedAt = DateTime.UtcNow,
+            clusterVersionUpdatedAt = DateTime.UtcNow
+        });
+    }
+
+    [HttpGet("stats/overview")]
+    public async Task<IActionResult> GetOverviewStats()
+    {
+        await using var db = _dbContextFactory.CreateDbContext();
+        var totalTenants = await db.Tenants.CountAsync(t => !t.IsDeleted);
+        var activeTenants = await db.Tenants.CountAsync(t => !t.IsDeleted && t.Status == 1);
+        var totalRoutes = await db.TenantRoutes.CountAsync(r => r.Status == 1 && !r.IsDeleted);
+        var totalInstances = await db.ServiceInstances.CountAsync(i => i.Status == 1 && !i.IsDeleted);
+        var healthyInstances = await db.ServiceInstances.CountAsync(i => i.Health == 1 && !i.IsDeleted);
+
+        return Ok(new
+        {
+            totalTenants,
+            activeTenants,
+            totalRoutes,
+            totalClusters = await db.ServiceInstances.Where(i => !i.IsDeleted).GroupBy(i => i.ClusterId).CountAsync(),
+            totalInstances,
+            healthyInstances,
+            lastUpdated = DateTime.UtcNow
+        });
+    }
+
+    #endregion
+
+    #region DTOs
+
     public class CreateTenantDto
     {
         public string TenantCode { get; set; } = string.Empty;
         public string TenantName { get; set; } = string.Empty;
     }
 
-    public class CreateTenantRouteDto
+    public class UpdateTenantDto
     {
-        public string ServiceName { get; set; } = string.Empty;
-        public string PathPattern { get; set; } = string.Empty;
+        public string? TenantName { get; set; }
+        public int? Status { get; set; }
     }
 
-    public class CreateGlobalRouteDto
+    public class CreateRouteDto
     {
+        public string? TenantCode { get; set; }
         public string ServiceName { get; set; } = string.Empty;
         public string ClusterId { get; set; } = string.Empty;
         public string PathPattern { get; set; } = string.Empty;
+        public int? Priority { get; set; }
+        public bool? IsGlobal { get; set; }
+    }
+
+    public class CreateClusterDto
+    {
+        public string ClusterId { get; set; } = string.Empty;
+        public string ClusterName { get; set; } = string.Empty;
+        public string? Description { get; set; }
+        public string? LoadBalancingPolicy { get; set; }
     }
 
     public class CreateInstanceDto
     {
         public string DestinationId { get; set; } = string.Empty;
         public string Address { get; set; } = string.Empty;
-        public int Weight { get; set; } = 1;
+        public int? Weight { get; set; }
+        public bool? IsHealthy { get; set; }
+    }
+
+    #endregion
+
+    private long GenerateId()
+    {
+        return DateTimeOffset.UtcNow.ToUnixTimeMilliseconds();
     }
 }

Controllers/PendingServicesController.cs

@@ -0,0 +1,209 @@
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.EntityFrameworkCore;
+using YarpGateway.Data;
+using YarpGateway.Models;
+
+namespace YarpGateway.Controllers;
+
+[ApiController]
+[Route("api/gateway/pending-services")]
+public class PendingServicesController : ControllerBase
+{
+    private readonly IDbContextFactory<GatewayDbContext> _dbContextFactory;
+    private readonly ILogger<PendingServicesController> _logger;
+
+    public PendingServicesController(
+        IDbContextFactory<GatewayDbContext> dbContextFactory,
+        ILogger<PendingServicesController> logger)
+    {
+        _dbContextFactory = dbContextFactory;
+        _logger = logger;
+    }
+
+    [HttpGet]
+    public async Task<IActionResult> GetPendingServices(
+        [FromQuery] int page = 1,
+        [FromQuery] int pageSize = 10,
+        [FromQuery] int? status = null)
+    {
+        await using var db = _dbContextFactory.CreateDbContext();
+        var query = db.PendingServiceDiscoveries.Where(p => !p.IsDeleted);
+
+        if (status.HasValue)
+        {
+            query = query.Where(p => p.Status == status.Value);
+        }
+
+        var total = await query.CountAsync();
+        var items = await query
+            .OrderByDescending(p => p.DiscoveredAt)
+            .Skip((page - 1) * pageSize)
+            .Take(pageSize)
+            .Select(p => new
+            {
+                p.Id,
+                p.K8sServiceName,
+                p.K8sNamespace,
+                p.K8sClusterIP,
+                DiscoveredPorts = System.Text.Json.JsonSerializer.Deserialize<List<int>>(p.DiscoveredPorts) ?? new List<int>(),
+                Labels = System.Text.Json.JsonSerializer.Deserialize<Dictionary<string, string>>(p.Labels) ?? new Dictionary<string, string>(),
+                p.PodCount,
+                Status = (PendingServiceStatus)p.Status,
+                p.AssignedClusterId,
+                p.AssignedBy,
+                p.AssignedAt,
+                p.DiscoveredAt
+            })
+            .ToListAsync();
+
+        return Ok(new { items, total, page, pageSize });
+    }
+
+    [HttpGet("{id}")]
+    public async Task<IActionResult> GetPendingService(long id)
+    {
+        await using var db = _dbContextFactory.CreateDbContext();
+        var service = await db.PendingServiceDiscoveries.FindAsync(id);
+
+        if (service == null || service.IsDeleted)
+        {
+            return NotFound(new { message = "Pending service not found" });
+        }
+
+        return Ok(new
+        {
+            service.Id,
+            service.K8sServiceName,
+            service.K8sNamespace,
+            service.K8sClusterIP,
+            DiscoveredPorts = System.Text.Json.JsonSerializer.Deserialize<List<int>>(service.DiscoveredPorts) ?? new List<int>(),
+            Labels = System.Text.Json.JsonSerializer.Deserialize<Dictionary<string, string>>(service.Labels) ?? new Dictionary<string, string>(),
+            service.PodCount,
+            Status = (PendingServiceStatus)service.Status,
+            service.AssignedClusterId,
+            service.AssignedBy,
+            service.AssignedAt,
+            service.DiscoveredAt
+        });
+    }
+
+    [HttpPost("{id}/assign")]
+    public async Task<IActionResult> AssignService(long id, [FromBody] AssignServiceRequest request)
+    {
+        await using var db = _dbContextFactory.CreateDbContext();
+        
+        var pendingService = await db.PendingServiceDiscoveries.FindAsync(id);
+        if (pendingService == null || pendingService.IsDeleted)
+        {
+            return NotFound(new { message = "Pending service not found" });
+        }
+
+        if (pendingService.Status != (int)PendingServiceStatus.Pending)
+        {
+            return BadRequest(new { message = $"Service is already {((PendingServiceStatus)pendingService.Status)}, cannot assign" });
+        }
+
+        if (string.IsNullOrEmpty(request.ClusterId))
+        {
+            return BadRequest(new { message = "ClusterId is required" });
+        }
+
+        var existingCluster = await db.ServiceInstances
+            .AnyAsync(i => i.ClusterId == request.ClusterId && !i.IsDeleted);
+
+        if (!existingCluster)
+        {
+            return BadRequest(new { message = $"Cluster '{request.ClusterId}' does not exist. Please create the cluster first." });
+        }
+
+        var discoveredPorts = System.Text.Json.JsonSerializer.Deserialize<List<int>>(pendingService.DiscoveredPorts) ?? new List<int>();
+        var primaryPort = discoveredPorts.FirstOrDefault() > 0 ? discoveredPorts.First() : 80;
+
+        var instanceNumber = await db.ServiceInstances
+            .CountAsync(i => i.ClusterId == request.ClusterId && !i.IsDeleted);
+
+        var newInstance = new GwServiceInstance
+        {
+            ClusterId = request.ClusterId,
+            DestinationId = $"{pendingService.K8sServiceName}-{instanceNumber + 1}",
+            Address = $"http://{pendingService.K8sClusterIP}:{primaryPort}",
+            Health = 1,
+            Weight = 100,
+            Status = 1,
+            CreatedTime = DateTime.UtcNow,
+            Version = 1
+        };
+
+        db.ServiceInstances.Add(newInstance);
+
+        pendingService.Status = (int)PendingServiceStatus.Approved;
+        pendingService.AssignedClusterId = request.ClusterId;
+        pendingService.AssignedBy = "admin";
+        pendingService.AssignedAt = DateTime.UtcNow;
+        pendingService.Version++;
+
+        await db.SaveChangesAsync();
+
+        _logger.LogInformation("Service {ServiceName} assigned to cluster {ClusterId} by admin",
+            pendingService.K8sServiceName, request.ClusterId);
+
+        return Ok(new
+        {
+            success = true,
+            message = $"Service '{pendingService.K8sServiceName}' assigned to cluster '{request.ClusterId}'",
+            instanceId = newInstance.Id
+        });
+    }
+
+    [HttpPost("{id}/reject")]
+    public async Task<IActionResult> RejectService(long id)
+    {
+        await using var db = _dbContextFactory.CreateDbContext();
+
+        var pendingService = await db.PendingServiceDiscoveries.FindAsync(id);
+        if (pendingService == null || pendingService.IsDeleted)
+        {
+            return NotFound(new { message = "Pending service not found" });
+        }
+
+        if (pendingService.Status != (int)PendingServiceStatus.Pending)
+        {
+            return BadRequest(new { message = $"Service is already {((PendingServiceStatus)pendingService.Status)}, cannot reject" });
+        }
+
+        pendingService.Status = (int)PendingServiceStatus.Rejected;
+        pendingService.AssignedBy = "admin";
+        pendingService.AssignedAt = DateTime.UtcNow;
+        pendingService.Version++;
+
+        await db.SaveChangesAsync();
+
+        _logger.LogInformation("Service {ServiceName} rejected by admin", pendingService.K8sServiceName);
+
+        return Ok(new { success = true, message = $"Service '{pendingService.K8sServiceName}' rejected" });
+    }
+
+    [HttpGet("clusters")]
+    public async Task<IActionResult> GetClusters()
+    {
+        await using var db = _dbContextFactory.CreateDbContext();
+        
+        var clusters = await db.ServiceInstances
+            .Where(i => !i.IsDeleted)
+            .GroupBy(i => i.ClusterId)
+            .Select(g => new
+            {
+                ClusterId = g.Key,
+                InstanceCount = g.Count(),
+                HealthyCount = g.Count(i => i.Health == 1)
+            })
+            .ToListAsync();
+
+        return Ok(clusters);
+    }
+}
+
+public class AssignServiceRequest
+{
+    public string ClusterId { get; set; } = string.Empty;
+}

Data/GatewayDbContext.cs

@@ -1,4 +1,6 @@
 using Microsoft.EntityFrameworkCore;
+using Npgsql;
+using YarpGateway.Config;
 using YarpGateway.Models;
 
 namespace YarpGateway.Data;
@@ -13,6 +15,78 @@ public class GatewayDbContext : DbContext
     public DbSet<GwTenant> Tenants => Set<GwTenant>();
     public DbSet<GwTenantRoute> TenantRoutes => Set<GwTenantRoute>();
     public DbSet<GwServiceInstance> ServiceInstances => Set<GwServiceInstance>();
+    public DbSet<GwPendingServiceDiscovery> PendingServiceDiscoveries => Set<GwPendingServiceDiscovery>();
+
+    public override int SaveChanges(bool acceptAllChangesOnSuccess)
+    {
+        DetectConfigChanges();
+        var result = base.SaveChanges(acceptAllChangesOnSuccess);
+        if (_configChangeDetected)
+        {
+            NotifyConfigChangedSync();
+        }
+        return result;
+    }
+
+    public override async Task<int> SaveChangesAsync(bool acceptAllChangesOnSuccess, CancellationToken cancellationToken = default)
+    {
+        DetectConfigChanges();
+        var result = await base.SaveChangesAsync(acceptAllChangesOnSuccess, cancellationToken);
+        if (_configChangeDetected)
+        {
+            await NotifyConfigChangedAsync(cancellationToken);
+        }
+        return result;
+    }
+
+    private bool _configChangeDetected;
+
+    private void DetectConfigChanges()
+    {
+        var entries = ChangeTracker.Entries()
+            .Where(e => e.State is EntityState.Added or EntityState.Modified or EntityState.Deleted)
+            .Where(e => e.Entity is GwTenantRoute or GwServiceInstance or GwTenant);
+
+        _configChangeDetected = entries.Any();
+    }
+
+    private bool IsRelationalDatabase()
+    {
+        try
+        {
+            return Database.IsRelational();
+        }
+        catch
+        {
+            return false;
+        }
+    }
+
+    private void NotifyConfigChangedSync()
+    {
+        if (!IsRelationalDatabase()) return;
+        
+        var connectionString = Database.GetConnectionString();
+        if (string.IsNullOrEmpty(connectionString)) return;
+
+        using var connection = new NpgsqlConnection(connectionString);
+        connection.Open();
+        using var cmd = new NpgsqlCommand($"NOTIFY {ConfigNotifyChannel.GatewayConfigChanged}", connection);
+        cmd.ExecuteNonQuery();
+    }
+
+    private async Task NotifyConfigChangedAsync(CancellationToken cancellationToken)
+    {
+        if (!IsRelationalDatabase()) return;
+        
+        var connectionString = Database.GetConnectionString();
+        if (string.IsNullOrEmpty(connectionString)) return;
+
+        await using var connection = new NpgsqlConnection(connectionString);
+        await connection.OpenAsync(cancellationToken);
+        await using var cmd = new NpgsqlCommand($"NOTIFY {ConfigNotifyChannel.GatewayConfigChanged}", connection);
+        await cmd.ExecuteNonQueryAsync(cancellationToken);
+    }
 
     protected override void OnModelCreating(ModelBuilder modelBuilder)
     {
@@ -47,6 +121,21 @@ public class GatewayDbContext : DbContext
             entity.HasIndex(e => e.Health);
         });
 
+        modelBuilder.Entity<GwPendingServiceDiscovery>(entity =>
+        {
+            entity.HasKey(e => e.Id);
+            entity.Property(e => e.K8sServiceName).HasMaxLength(255).IsRequired();
+            entity.Property(e => e.K8sNamespace).HasMaxLength(255).IsRequired();
+            entity.Property(e => e.K8sClusterIP).HasMaxLength(50);
+            entity.Property(e => e.DiscoveredPorts).HasMaxLength(500);
+            entity.Property(e => e.Labels).HasMaxLength(2000);
+            entity.Property(e => e.AssignedClusterId).HasMaxLength(100);
+            entity.Property(e => e.AssignedBy).HasMaxLength(100);
+            entity.HasIndex(e => new { e.K8sServiceName, e.K8sNamespace, e.IsDeleted }).IsUnique();
+            entity.HasIndex(e => e.Status);
+            entity.HasIndex(e => e.DiscoveredAt);
+        });
+
         base.OnModelCreating(modelBuilder);
     }
 }

Directory.Build.props

@@ -0,0 +1,6 @@
+<Project>
+  <PropertyGroup>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+</Project>

Dockerfile

@@ -1,14 +1,29 @@
 FROM mcr.microsoft.com/dotnet/aspnet:10.0 AS base
+USER $APP_UID
 WORKDIR /app
 EXPOSE 8080
+EXPOSE 8081
 
 FROM mcr.microsoft.com/dotnet/sdk:10.0 AS build
+ARG BUILD_CONFIGURATION=Release
 WORKDIR /src
+# Copy Directory.Packages.props for centralized version management
+COPY ["Directory.Packages.props", "./"]
+COPY ["src/Directory.Packages.props", "src/"]
+COPY ["src/YarpGateway/YarpGateway.csproj", "src/YarpGateway/"]
+COPY ["src/Fengling.ServiceDiscovery/Fengling.ServiceDiscovery.Core/Fengling.ServiceDiscovery.Core.csproj", "src/Fengling.ServiceDiscovery/Fengling.ServiceDiscovery.Core/"]
+COPY ["src/Fengling.ServiceDiscovery/Fengling.ServiceDiscovery.Kubernetes/Fengling.ServiceDiscovery.Kubernetes.csproj", "src/Fengling.ServiceDiscovery/Fengling.ServiceDiscovery.Kubernetes/"]
+COPY ["src/Fengling.ServiceDiscovery/Fengling.ServiceDiscovery.Static/Fengling.ServiceDiscovery.Static.csproj", "src/Fengling.ServiceDiscovery/Fengling.ServiceDiscovery.Static/"]
+RUN dotnet restore "src/YarpGateway/YarpGateway.csproj"
 COPY . .
-RUN dotnet restore
-RUN dotnet publish -c Release -o /app/publish
+WORKDIR "/src/src/YarpGateway"
+RUN dotnet build "./YarpGateway.csproj" -c $BUILD_CONFIGURATION -o /app/build
+
+FROM build AS publish
+ARG BUILD_CONFIGURATION=Release
+RUN dotnet publish "./YarpGateway.csproj" -c $BUILD_CONFIGURATION -o /app/publish /p:UseAppHost=false
 
 FROM base AS final
 WORKDIR /app
-COPY --from=build /app/publish .
+COPY --from=publish /app/publish .
 ENTRYPOINT ["dotnet", "YarpGateway.dll"]

DynamicProxy/DynamicProxyConfigProvider.cs

@@ -10,6 +10,7 @@ public class DynamicProxyConfigProvider : IProxyConfigProvider
     private readonly DatabaseRouteConfigProvider _routeProvider;
     private readonly DatabaseClusterConfigProvider _clusterProvider;
     private readonly object _lock = new();
+    private CancellationTokenSource? _cts;
 
     public DynamicProxyConfigProvider(
         DatabaseRouteConfigProvider routeProvider,
@@ -17,6 +18,8 @@ public class DynamicProxyConfigProvider : IProxyConfigProvider
     {
         _routeProvider = routeProvider;
         _clusterProvider = clusterProvider;
+        _cts = new CancellationTokenSource();
+        _config = null!;
         UpdateConfig();
     }
 
@@ -29,13 +32,17 @@ public class DynamicProxyConfigProvider : IProxyConfigProvider
     {
         lock (_lock)
         {
+            _cts?.Cancel();
+            _cts = new CancellationTokenSource();
+            
             var routes = _routeProvider.GetRoutes();
             var clusters = _clusterProvider.GetClusters();
 
             _config = new InMemoryProxyConfig(
                 routes,
                 clusters,
-                Array.Empty<IReadOnlyDictionary<string, string>>()
+                Array.Empty<IReadOnlyDictionary<string, string>>(),
+                _cts.Token
             );
         }
     }
@@ -49,21 +56,23 @@ public class DynamicProxyConfigProvider : IProxyConfigProvider
 
     private class InMemoryProxyConfig : IProxyConfig
     {
-        private static readonly CancellationChangeToken _nullChangeToken = new(new CancellationToken());
+        private readonly CancellationChangeToken _changeToken;
 
         public InMemoryProxyConfig(
             IReadOnlyList<RouteConfig> routes,
             IReadOnlyList<ClusterConfig> clusters,
-            IReadOnlyList<IReadOnlyDictionary<string, string>> transforms)
+            IReadOnlyList<IReadOnlyDictionary<string, string>> transforms,
+            CancellationToken token)
         {
             Routes = routes;
             Clusters = clusters;
             Transforms = transforms;
+            _changeToken = new CancellationChangeToken(token);
         }
 
         public IReadOnlyList<RouteConfig> Routes { get; }
         public IReadOnlyList<ClusterConfig> Clusters { get; }
         public IReadOnlyList<IReadOnlyDictionary<string, string>> Transforms { get; }
-        public IChangeToken ChangeToken => _nullChangeToken;
+        public IChangeToken ChangeToken => _changeToken;
     }
 }

Migrations/20260222134342_AddPendingServiceDiscovery.Designer.cs

@@ -0,0 +1,275 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+using YarpGateway.Data;
+
+#nullable disable
+
+namespace YarpGateway.Migrations
+{
+    [DbContext(typeof(GatewayDbContext))]
+    [Migration("20260222134342_AddPendingServiceDiscovery")]
+    partial class AddPendingServiceDiscovery
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "10.0.2")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("YarpGateway.Models.GwPendingServiceDiscovery", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<long>("Id"));
+
+                    b.Property<DateTime?>("AssignedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("AssignedBy")
+                        .HasMaxLength(100)
+                        .HasColumnType("character varying(100)");
+
+                    b.Property<string>("AssignedClusterId")
+                        .HasMaxLength(100)
+                        .HasColumnType("character varying(100)");
+
+                    b.Property<DateTime>("DiscoveredAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("DiscoveredPorts")
+                        .IsRequired()
+                        .HasMaxLength(500)
+                        .HasColumnType("character varying(500)");
+
+                    b.Property<bool>("IsDeleted")
+                        .HasColumnType("boolean");
+
+                    b.Property<string>("K8sClusterIP")
+                        .HasMaxLength(50)
+                        .HasColumnType("character varying(50)");
+
+                    b.Property<string>("K8sNamespace")
+                        .IsRequired()
+                        .HasMaxLength(255)
+                        .HasColumnType("character varying(255)");
+
+                    b.Property<string>("K8sServiceName")
+                        .IsRequired()
+                        .HasMaxLength(255)
+                        .HasColumnType("character varying(255)");
+
+                    b.Property<string>("Labels")
+                        .IsRequired()
+                        .HasMaxLength(2000)
+                        .HasColumnType("character varying(2000)");
+
+                    b.Property<int>("PodCount")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Version")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("DiscoveredAt");
+
+                    b.HasIndex("Status");
+
+                    b.HasIndex("K8sServiceName", "K8sNamespace", "IsDeleted")
+                        .IsUnique();
+
+                    b.ToTable("PendingServiceDiscoveries");
+                });
+
+            modelBuilder.Entity("YarpGateway.Models.GwServiceInstance", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<long>("Id"));
+
+                    b.Property<string>("Address")
+                        .IsRequired()
+                        .HasMaxLength(200)
+                        .HasColumnType("character varying(200)");
+
+                    b.Property<string>("ClusterId")
+                        .IsRequired()
+                        .HasMaxLength(100)
+                        .HasColumnType("character varying(100)");
+
+                    b.Property<long?>("CreatedBy")
+                        .HasColumnType("bigint");
+
+                    b.Property<DateTime>("CreatedTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("DestinationId")
+                        .IsRequired()
+                        .HasMaxLength(100)
+                        .HasColumnType("character varying(100)");
+
+                    b.Property<int>("Health")
+                        .HasColumnType("integer");
+
+                    b.Property<bool>("IsDeleted")
+                        .HasColumnType("boolean");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("integer");
+
+                    b.Property<long?>("UpdatedBy")
+                        .HasColumnType("bigint");
+
+                    b.Property<DateTime?>("UpdatedTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<int>("Version")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Weight")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("Health");
+
+                    b.HasIndex("ClusterId", "DestinationId")
+                        .IsUnique();
+
+                    b.ToTable("ServiceInstances");
+                });
+
+            modelBuilder.Entity("YarpGateway.Models.GwTenant", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<long>("Id"));
+
+                    b.Property<long?>("CreatedBy")
+                        .HasColumnType("bigint");
+
+                    b.Property<DateTime>("CreatedTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<bool>("IsDeleted")
+                        .HasColumnType("boolean");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("TenantCode")
+                        .IsRequired()
+                        .HasMaxLength(50)
+                        .HasColumnType("character varying(50)");
+
+                    b.Property<string>("TenantName")
+                        .IsRequired()
+                        .HasMaxLength(100)
+                        .HasColumnType("character varying(100)");
+
+                    b.Property<long?>("UpdatedBy")
+                        .HasColumnType("bigint");
+
+                    b.Property<DateTime?>("UpdatedTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<int>("Version")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("TenantCode")
+                        .IsUnique();
+
+                    b.ToTable("Tenants");
+                });
+
+            modelBuilder.Entity("YarpGateway.Models.GwTenantRoute", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<long>("Id"));
+
+                    b.Property<string>("ClusterId")
+                        .IsRequired()
+                        .HasMaxLength(100)
+                        .HasColumnType("character varying(100)");
+
+                    b.Property<long?>("CreatedBy")
+                        .HasColumnType("bigint");
+
+                    b.Property<DateTime>("CreatedTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<bool>("IsDeleted")
+                        .HasColumnType("boolean");
+
+                    b.Property<bool>("IsGlobal")
+                        .HasColumnType("boolean");
+
+                    b.Property<string>("PathPattern")
+                        .IsRequired()
+                        .HasMaxLength(200)
+                        .HasColumnType("character varying(200)");
+
+                    b.Property<int>("Priority")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("ServiceName")
+                        .IsRequired()
+                        .HasMaxLength(100)
+                        .HasColumnType("character varying(100)");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("TenantCode")
+                        .IsRequired()
+                        .HasMaxLength(50)
+                        .HasColumnType("character varying(50)");
+
+                    b.Property<long?>("UpdatedBy")
+                        .HasColumnType("bigint");
+
+                    b.Property<DateTime?>("UpdatedTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<int>("Version")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ClusterId");
+
+                    b.HasIndex("ServiceName");
+
+                    b.HasIndex("TenantCode");
+
+                    b.HasIndex("ServiceName", "IsGlobal", "Status");
+
+                    b.ToTable("TenantRoutes");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

Migrations/20260222134342_AddPendingServiceDiscovery.cs

@@ -0,0 +1,64 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace YarpGateway.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddPendingServiceDiscovery : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "PendingServiceDiscoveries",
+                columns: table => new
+                {
+                    Id = table.Column<long>(type: "bigint", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    K8sServiceName = table.Column<string>(type: "character varying(255)", maxLength: 255, nullable: false),
+                    K8sNamespace = table.Column<string>(type: "character varying(255)", maxLength: 255, nullable: false),
+                    K8sClusterIP = table.Column<string>(type: "character varying(50)", maxLength: 50, nullable: true),
+                    DiscoveredPorts = table.Column<string>(type: "character varying(500)", maxLength: 500, nullable: false),
+                    Labels = table.Column<string>(type: "character varying(2000)", maxLength: 2000, nullable: false),
+                    PodCount = table.Column<int>(type: "integer", nullable: false),
+                    Status = table.Column<int>(type: "integer", nullable: false),
+                    AssignedClusterId = table.Column<string>(type: "character varying(100)", maxLength: 100, nullable: true),
+                    AssignedBy = table.Column<string>(type: "character varying(100)", maxLength: 100, nullable: true),
+                    AssignedAt = table.Column<DateTime>(type: "timestamp with time zone", nullable: true),
+                    DiscoveredAt = table.Column<DateTime>(type: "timestamp with time zone", nullable: false),
+                    IsDeleted = table.Column<bool>(type: "boolean", nullable: false),
+                    Version = table.Column<int>(type: "integer", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_PendingServiceDiscoveries", x => x.Id);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_PendingServiceDiscoveries_DiscoveredAt",
+                table: "PendingServiceDiscoveries",
+                column: "DiscoveredAt");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_PendingServiceDiscoveries_K8sServiceName_K8sNamespace_IsDel~",
+                table: "PendingServiceDiscoveries",
+                columns: new[] { "K8sServiceName", "K8sNamespace", "IsDeleted" },
+                unique: true);
+
+            migrationBuilder.CreateIndex(
+                name: "IX_PendingServiceDiscoveries_Status",
+                table: "PendingServiceDiscoveries",
+                column: "Status");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "PendingServiceDiscoveries");
+        }
+    }
+}

Migrations/GatewayDbContextModelSnapshot.cs

@@ -17,11 +17,81 @@ namespace YarpGateway.Migrations
         {
 #pragma warning disable 612, 618
             modelBuilder
-                .HasAnnotation("ProductVersion", "9.0.0")
+                .HasAnnotation("ProductVersion", "10.0.2")
                 .HasAnnotation("Relational:MaxIdentifierLength", 63);
 
             NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
 
+            modelBuilder.Entity("YarpGateway.Models.GwPendingServiceDiscovery", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<long>("Id"));
+
+                    b.Property<DateTime?>("AssignedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("AssignedBy")
+                        .HasMaxLength(100)
+                        .HasColumnType("character varying(100)");
+
+                    b.Property<string>("AssignedClusterId")
+                        .HasMaxLength(100)
+                        .HasColumnType("character varying(100)");
+
+                    b.Property<DateTime>("DiscoveredAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("DiscoveredPorts")
+                        .IsRequired()
+                        .HasMaxLength(500)
+                        .HasColumnType("character varying(500)");
+
+                    b.Property<bool>("IsDeleted")
+                        .HasColumnType("boolean");
+
+                    b.Property<string>("K8sClusterIP")
+                        .HasMaxLength(50)
+                        .HasColumnType("character varying(50)");
+
+                    b.Property<string>("K8sNamespace")
+                        .IsRequired()
+                        .HasMaxLength(255)
+                        .HasColumnType("character varying(255)");
+
+                    b.Property<string>("K8sServiceName")
+                        .IsRequired()
+                        .HasMaxLength(255)
+                        .HasColumnType("character varying(255)");
+
+                    b.Property<string>("Labels")
+                        .IsRequired()
+                        .HasMaxLength(2000)
+                        .HasColumnType("character varying(2000)");
+
+                    b.Property<int>("PodCount")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Version")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("DiscoveredAt");
+
+                    b.HasIndex("Status");
+
+                    b.HasIndex("K8sServiceName", "K8sNamespace", "IsDeleted")
+                        .IsUnique();
+
+                    b.ToTable("PendingServiceDiscoveries");
+                });
+
             modelBuilder.Entity("YarpGateway.Models.GwServiceInstance", b =>
                 {
                     b.Property<long>("Id")

Migrations/pending_service_migration.sql

@@ -0,0 +1,122 @@
+CREATE TABLE IF NOT EXISTS "__EFMigrationsHistory" (
+    "MigrationId" character varying(150) NOT NULL,
+    "ProductVersion" character varying(32) NOT NULL,
+    CONSTRAINT "PK___EFMigrationsHistory" PRIMARY KEY ("MigrationId")
+);
+
+START TRANSACTION;
+CREATE TABLE "ServiceInstances" (
+    "Id" bigint GENERATED BY DEFAULT AS IDENTITY,
+    "ClusterId" character varying(100) NOT NULL,
+    "DestinationId" character varying(100) NOT NULL,
+    "Address" character varying(200) NOT NULL,
+    "Health" integer NOT NULL,
+    "Weight" integer NOT NULL,
+    "Status" integer NOT NULL,
+    "CreatedBy" bigint,
+    "CreatedTime" timestamp with time zone NOT NULL,
+    "UpdatedBy" bigint,
+    "UpdatedTime" timestamp with time zone,
+    "IsDeleted" boolean NOT NULL,
+    "Version" integer NOT NULL,
+    CONSTRAINT "PK_ServiceInstances" PRIMARY KEY ("Id")
+);
+
+CREATE TABLE "Tenants" (
+    "Id" bigint GENERATED BY DEFAULT AS IDENTITY,
+    "TenantCode" character varying(50) NOT NULL,
+    "TenantName" character varying(100) NOT NULL,
+    "Status" integer NOT NULL,
+    "CreatedBy" bigint,
+    "CreatedTime" timestamp with time zone NOT NULL,
+    "UpdatedBy" bigint,
+    "UpdatedTime" timestamp with time zone,
+    "IsDeleted" boolean NOT NULL,
+    "Version" integer NOT NULL,
+    CONSTRAINT "PK_Tenants" PRIMARY KEY ("Id"),
+    CONSTRAINT "AK_Tenants_TenantCode" UNIQUE ("TenantCode")
+);
+
+CREATE TABLE "TenantRoutes" (
+    "Id" bigint GENERATED BY DEFAULT AS IDENTITY,
+    "TenantCode" character varying(50) NOT NULL,
+    "ServiceName" character varying(100) NOT NULL,
+    "ClusterId" character varying(100) NOT NULL,
+    "PathPattern" character varying(200) NOT NULL,
+    "Priority" integer NOT NULL,
+    "Status" integer NOT NULL,
+    "CreatedBy" bigint,
+    "CreatedTime" timestamp with time zone NOT NULL,
+    "UpdatedBy" bigint,
+    "UpdatedTime" timestamp with time zone,
+    "IsDeleted" boolean NOT NULL,
+    "Version" integer NOT NULL,
+    CONSTRAINT "PK_TenantRoutes" PRIMARY KEY ("Id"),
+    CONSTRAINT "FK_TenantRoutes_Tenants_TenantCode" FOREIGN KEY ("TenantCode") REFERENCES "Tenants" ("TenantCode") ON DELETE RESTRICT
+);
+
+CREATE UNIQUE INDEX "IX_ServiceInstances_ClusterId_DestinationId" ON "ServiceInstances" ("ClusterId", "DestinationId");
+
+CREATE INDEX "IX_ServiceInstances_Health" ON "ServiceInstances" ("Health");
+
+CREATE INDEX "IX_TenantRoutes_ClusterId" ON "TenantRoutes" ("ClusterId");
+
+CREATE UNIQUE INDEX "IX_TenantRoutes_TenantCode_ServiceName" ON "TenantRoutes" ("TenantCode", "ServiceName");
+
+CREATE UNIQUE INDEX "IX_Tenants_TenantCode" ON "Tenants" ("TenantCode");
+
+INSERT INTO "__EFMigrationsHistory" ("MigrationId", "ProductVersion")
+VALUES ('20260201120312_InitialCreate', '10.0.2');
+
+COMMIT;
+
+START TRANSACTION;
+ALTER TABLE "TenantRoutes" DROP CONSTRAINT "FK_TenantRoutes_Tenants_TenantCode";
+
+ALTER TABLE "Tenants" DROP CONSTRAINT "AK_Tenants_TenantCode";
+
+DROP INDEX "IX_TenantRoutes_TenantCode_ServiceName";
+
+ALTER TABLE "TenantRoutes" ADD "IsGlobal" boolean NOT NULL DEFAULT FALSE;
+
+CREATE INDEX "IX_TenantRoutes_ServiceName" ON "TenantRoutes" ("ServiceName");
+
+CREATE INDEX "IX_TenantRoutes_ServiceName_IsGlobal_Status" ON "TenantRoutes" ("ServiceName", "IsGlobal", "Status");
+
+CREATE INDEX "IX_TenantRoutes_TenantCode" ON "TenantRoutes" ("TenantCode");
+
+INSERT INTO "__EFMigrationsHistory" ("MigrationId", "ProductVersion")
+VALUES ('20260201133826_AddIsGlobalToTenantRoute', '10.0.2');
+
+COMMIT;
+
+START TRANSACTION;
+CREATE TABLE "PendingServiceDiscoveries" (
+    "Id" bigint GENERATED BY DEFAULT AS IDENTITY,
+    "K8sServiceName" character varying(255) NOT NULL,
+    "K8sNamespace" character varying(255) NOT NULL,
+    "K8sClusterIP" character varying(50),
+    "DiscoveredPorts" character varying(500) NOT NULL,
+    "Labels" character varying(2000) NOT NULL,
+    "PodCount" integer NOT NULL,
+    "Status" integer NOT NULL,
+    "AssignedClusterId" character varying(100),
+    "AssignedBy" character varying(100),
+    "AssignedAt" timestamp with time zone,
+    "DiscoveredAt" timestamp with time zone NOT NULL,
+    "IsDeleted" boolean NOT NULL,
+    "Version" integer NOT NULL,
+    CONSTRAINT "PK_PendingServiceDiscoveries" PRIMARY KEY ("Id")
+);
+
+CREATE INDEX "IX_PendingServiceDiscoveries_DiscoveredAt" ON "PendingServiceDiscoveries" ("DiscoveredAt");
+
+CREATE UNIQUE INDEX "IX_PendingServiceDiscoveries_K8sServiceName_K8sNamespace_IsDel~" ON "PendingServiceDiscoveries" ("K8sServiceName", "K8sNamespace", "IsDeleted");
+
+CREATE INDEX "IX_PendingServiceDiscoveries_Status" ON "PendingServiceDiscoveries" ("Status");
+
+INSERT INTO "__EFMigrationsHistory" ("MigrationId", "ProductVersion")
+VALUES ('20260222134342_AddPendingServiceDiscovery', '10.0.2');
+
+COMMIT;
+

Models/GwPendingServiceDiscovery.cs

@@ -0,0 +1,27 @@
+namespace YarpGateway.Models;
+
+public class GwPendingServiceDiscovery
+{
+    public long Id { get; set; }
+    public string K8sServiceName { get; set; } = string.Empty;
+    public string K8sNamespace { get; set; } = string.Empty;
+    public string? K8sClusterIP { get; set; }
+    public string DiscoveredPorts { get; set; } = "[]";
+    public string Labels { get; set; } = "{}";
+    public int PodCount { get; set; } = 0;
+    public int Status { get; set; } = 0;
+    public string? AssignedClusterId { get; set; }
+    public string? AssignedBy { get; set; }
+    public DateTime? AssignedAt { get; set; }
+    public DateTime DiscoveredAt { get; set; } = DateTime.UtcNow;
+    public bool IsDeleted { get; set; } = false;
+    public int Version { get; set; } = 0;
+}
+
+public enum PendingServiceStatus
+{
+    Pending = 0,
+    Approved = 1,
+    Rejected = 2,
+    K8sServiceNotFound = 3
+}

Program.cs

@@ -10,6 +10,8 @@ using YarpGateway.LoadBalancing;
 using YarpGateway.Middleware;
 using YarpGateway.Services;
 using StackExchange.Redis;
+using Fengling.ServiceDiscovery.Extensions;
+using Fengling.ServiceDiscovery.Kubernetes.Extensions;
 
 var builder = WebApplication.CreateBuilder(args);
 
@@ -62,6 +64,20 @@ builder.Services.AddSingleton<ILoadBalancingPolicy, DistributedWeightedRoundRobi
 builder.Services.AddSingleton<DynamicProxyConfigProvider>();
 builder.Services.AddSingleton<IProxyConfigProvider>(sp => sp.GetRequiredService<DynamicProxyConfigProvider>());
 
+builder.Services.AddHostedService<PgSqlConfigChangeListener>();
+
+// 添加 Kubernetes 服务发现
+var useInClusterConfig = builder.Configuration.GetValue<bool>("ServiceDiscovery:UseInClusterConfig", true);
+builder.Services.AddKubernetesServiceDiscovery(options =>
+{
+    options.LabelSelector = "app.kubernetes.io/managed-by=yarp";
+    options.UseInClusterConfig = useInClusterConfig;
+});
+
+builder.Services.AddServiceDiscovery();
+
+builder.Services.AddHostedService<KubernetesPendingSyncService>();
+
 var corsSettings = builder.Configuration.GetSection("Cors");
 builder.Services.AddCors(options =>
 {
@@ -86,6 +102,9 @@ builder.Services.AddCors(options =>
 });
 
 builder.Services.AddControllers();
+builder.Services.AddHttpForwarder();
+builder.Services.AddRouting();
+builder.Services.AddReverseProxy();
 
 var app = builder.Build();
 
@@ -93,6 +112,8 @@ app.UseCors("AllowFrontend");
 app.UseMiddleware<JwtTransformMiddleware>();
 app.UseMiddleware<TenantRoutingMiddleware>();
 
+app.MapGet("/health", () => Results.Ok(new { status = "healthy", timestamp = DateTime.UtcNow }));
+
 app.MapControllers();
 app.MapReverseProxy();
 

Services/KubernetesPendingSyncService.cs

@@ -0,0 +1,161 @@
+using System.Text.Json;
+using Microsoft.EntityFrameworkCore;
+using YarpGateway.Data;
+using YarpGateway.Models;
+
+namespace YarpGateway.Services;
+
+public class KubernetesPendingSyncService : BackgroundService
+{
+    private readonly IServiceProvider _serviceProvider;
+    private readonly ILogger<KubernetesPendingSyncService> _logger;
+    private readonly TimeSpan _syncInterval = TimeSpan.FromSeconds(30);
+    private readonly TimeSpan _staleThreshold = TimeSpan.FromHours(24);
+
+    public KubernetesPendingSyncService(
+        IServiceProvider serviceProvider,
+        ILogger<KubernetesPendingSyncService> logger)
+    {
+        _serviceProvider = serviceProvider;
+        _logger = logger;
+    }
+
+    protected override async Task ExecuteAsync(CancellationToken stoppingToken)
+    {
+        _logger.LogInformation("Starting K8s pending service sync background task");
+
+        while (!stoppingToken.IsCancellationRequested)
+        {
+            try
+            {
+                await SyncPendingServicesAsync(stoppingToken);
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Error during K8s pending service sync");
+            }
+
+            await Task.Delay(_syncInterval, stoppingToken);
+        }
+    }
+
+    private async Task SyncPendingServicesAsync(CancellationToken ct)
+    {
+        using var scope = _serviceProvider.CreateScope();
+        var providers = scope.ServiceProvider.GetServices<Fengling.ServiceDiscovery.IServiceDiscoveryProvider>();
+        var k8sProvider = providers.FirstOrDefault(p => p.ProviderName == "Kubernetes");
+        
+        if (k8sProvider == null)
+        {
+            _logger.LogWarning("No Kubernetes service discovery provider found");
+            return;
+        }
+        
+        var dbContextFactory = scope.ServiceProvider.GetRequiredService<IDbContextFactory<GatewayDbContext>>();
+
+        var discoveredServices = await k8sProvider.GetServicesAsync(ct);
+        
+        await using var db = await dbContextFactory.CreateDbContextAsync(ct);
+
+        var existingPending = await db.PendingServiceDiscoveries
+            .Where(p => !p.IsDeleted && p.Status == (int)PendingServiceStatus.Pending)
+            .ToListAsync(ct);
+
+        var existingDict = existingPending
+            .ToDictionary(p => $"{p.K8sServiceName}|{p.K8sNamespace}");
+
+        var discoveredSet = discoveredServices
+            .Select(s => $"{s.Name}|{s.Namespace}")
+            .ToHashSet();
+
+        var addedCount = 0;
+        var updatedCount = 0;
+        var cleanedCount = 0;
+
+        foreach (var item in existingDict)
+        {
+            var key = item.Key;
+            
+            if (!discoveredSet.Contains(key))
+            {
+                var pending = item.Value;
+                
+                if (DateTime.UtcNow - pending.DiscoveredAt > _staleThreshold)
+                {
+                    pending.IsDeleted = true;
+                    pending.Version++;
+                    cleanedCount++;
+                    _logger.LogInformation("Cleaned up stale pending service {ServiceName} in namespace {Namespace}",
+                        pending.K8sServiceName, pending.K8sNamespace);
+                }
+                else
+                {
+                    pending.Status = (int)PendingServiceStatus.K8sServiceNotFound;
+                    pending.Version++;
+                    _logger.LogInformation("Pending service {ServiceName} in namespace {Namespace} not found in K8s, marked as not found",
+                        pending.K8sServiceName, pending.K8sNamespace);
+                }
+            }
+        }
+
+        if (discoveredServices.Count > 0)
+        {
+            var discoveredDict = discoveredServices.ToDictionary(
+                s => $"{s.Name}|{s.Namespace}",
+                s => s);
+
+            foreach (var item in discoveredDict)
+            {
+                var key = item.Key;
+                var service = item.Value;
+                
+                if (existingDict.TryGetValue(key, out var existing))
+                {
+                    if (existing.Status == (int)PendingServiceStatus.K8sServiceNotFound)
+                    {
+                        existing.Status = (int)PendingServiceStatus.Pending;
+                        existing.Version++;
+                        updatedCount++;
+                    }
+                    
+                    var portsJson = JsonSerializer.Serialize(service.Ports);
+                    var labelsJson = JsonSerializer.Serialize(service.Labels);
+
+                    if (existing.DiscoveredPorts != portsJson || existing.Labels != labelsJson)
+                    {
+                        existing.DiscoveredPorts = portsJson;
+                        existing.Labels = labelsJson;
+                        existing.K8sClusterIP = service.ClusterIP;
+                        existing.PodCount = service.Ports.Count;
+                        existing.Version++;
+                        updatedCount++;
+                    }
+                }
+                else
+                {
+                    var newPending = new GwPendingServiceDiscovery
+                    {
+                        K8sServiceName = service.Name,
+                        K8sNamespace = service.Namespace,
+                        K8sClusterIP = service.ClusterIP,
+                        DiscoveredPorts = JsonSerializer.Serialize(service.Ports),
+                        Labels = JsonSerializer.Serialize(service.Labels),
+                        PodCount = service.Ports.Count,
+                        Status = (int)PendingServiceStatus.Pending,
+                        DiscoveredAt = DateTime.UtcNow,
+                        Version = 1
+                    };
+                    db.PendingServiceDiscoveries.Add(newPending);
+                    addedCount++;
+                }
+            }
+        }
+
+        if (addedCount > 0 || updatedCount > 0 || cleanedCount > 0)
+        {
+            await db.SaveChangesAsync(ct);
+            _logger.LogInformation("K8s sync completed: {Added} new, {Updated} updated, {Cleaned} cleaned",
+                addedCount, updatedCount, cleanedCount);
+        }
+    }
+}

Services/PgSqlConfigChangeListener.cs

@@ -0,0 +1,222 @@
+using System.Threading.Channels;
+using Microsoft.EntityFrameworkCore;
+using Npgsql;
+using YarpGateway.Config;
+using YarpGateway.Data;
+using YarpGateway.DynamicProxy;
+
+namespace YarpGateway.Services;
+
+public class PgSqlConfigChangeListener : BackgroundService
+{
+    private readonly IServiceProvider _serviceProvider;
+    private readonly ILogger<PgSqlConfigChangeListener> _logger;
+    private readonly TimeSpan _fallbackInterval = TimeSpan.FromMinutes(5);
+    private readonly string _connectionString;
+    private NpgsqlConnection? _connection;
+    private int _lastRouteVersion;
+    private int _lastClusterVersion;
+    private readonly Channel<bool> _reloadChannel = Channel.CreateBounded<bool>(1);
+
+    public PgSqlConfigChangeListener(
+        IServiceProvider serviceProvider,
+        ILogger<PgSqlConfigChangeListener> logger,
+        IConfiguration configuration)
+    {
+        _serviceProvider = serviceProvider;
+        _logger = logger;
+        _connectionString = configuration.GetConnectionString("DefaultConnection")
+            ?? throw new InvalidOperationException("DefaultConnection is not configured");
+    }
+
+    protected override async Task ExecuteAsync(CancellationToken stoppingToken)
+    {
+        _logger.LogInformation("Starting PgSql config change listener");
+
+        await InitializeListenerAsync(stoppingToken);
+
+        _ = FallbackPollingAsync(stoppingToken);
+
+        await ListenAsync(stoppingToken);
+    }
+
+    private async Task InitializeListenerAsync(CancellationToken stoppingToken)
+    {
+        try
+        {
+            _connection = new NpgsqlConnection(_connectionString);
+            _connection.Notification += OnNotification;
+            await _connection.OpenAsync(stoppingToken);
+            
+            await using var cmd = _connection.CreateCommand();
+            cmd.CommandText = $"LISTEN {ConfigNotifyChannel.GatewayConfigChanged}";
+            await cmd.ExecuteNonQueryAsync(stoppingToken);
+            
+            _logger.LogInformation("Listening on {Channel}", ConfigNotifyChannel.GatewayConfigChanged);
+
+            await UpdateVersionAsync(stoppingToken);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Failed to initialize PgSql listener");
+        }
+    }
+
+    private void OnNotification(object sender, NpgsqlNotificationEventArgs e)
+    {
+        _logger.LogInformation("Received config change notification: {Payload}", e.Payload);
+        _ = _reloadChannel.Writer.WriteAsync(true);
+    }
+
+    private async Task ListenAsync(CancellationToken stoppingToken)
+    {
+        while (!stoppingToken.IsCancellationRequested)
+        {
+            try
+            {
+                if (_connection == null || _connection.State != System.Data.ConnectionState.Open)
+                {
+                    await ReconnectAsync(stoppingToken);
+                }
+
+                await Task.Delay(Timeout.Infinite, stoppingToken);
+            }
+            catch (OperationCanceledException) when (stoppingToken.IsCancellationRequested)
+            {
+                break;
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Error in listener loop, reconnecting...");
+                await Task.Delay(TimeSpan.FromSeconds(5), stoppingToken);
+                await ReconnectAsync(stoppingToken);
+            }
+        }
+    }
+
+    private async Task ReconnectAsync(CancellationToken stoppingToken)
+    {
+        try
+        {
+            _connection?.Dispose();
+            _connection = new NpgsqlConnection(_connectionString);
+            _connection.Notification += OnNotification;
+            await _connection.OpenAsync(stoppingToken);
+            
+            await using var cmd = _connection.CreateCommand();
+            cmd.CommandText = $"LISTEN {ConfigNotifyChannel.GatewayConfigChanged}";
+            await cmd.ExecuteNonQueryAsync(stoppingToken);
+            
+            _logger.LogInformation("Reconnected to PostgreSQL and listening");
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Failed to reconnect");
+        }
+    }
+
+    private async Task FallbackPollingAsync(CancellationToken stoppingToken)
+    {
+        while (!stoppingToken.IsCancellationRequested)
+        {
+            try
+            {
+                await Task.Delay(_fallbackInterval, stoppingToken);
+                await CheckAndReloadAsync(stoppingToken);
+            }
+            catch (OperationCanceledException) when (stoppingToken.IsCancellationRequested)
+            {
+                break;
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Error in fallback polling");
+            }
+        }
+    }
+
+    private async Task CheckAndReloadAsync(CancellationToken stoppingToken)
+    {
+        try
+        {
+            await using var scope = _serviceProvider.CreateAsyncScope();
+            await using var db = scope.ServiceProvider.GetRequiredService<GatewayDbContext>();
+
+            var currentRouteVersion = await db.TenantRoutes
+                .OrderByDescending(r => r.Version)
+                .Select(r => r.Version)
+                .FirstOrDefaultAsync(stoppingToken);
+
+            var currentClusterVersion = await db.ServiceInstances
+                .OrderByDescending(i => i.Version)
+                .Select(i => i.Version)
+                .FirstOrDefaultAsync(stoppingToken);
+
+            if (currentRouteVersion != _lastRouteVersion || currentClusterVersion != _lastClusterVersion)
+            {
+                _logger.LogInformation("Version change detected via fallback: route {RouteVer}->{NewRouteVer}, cluster {ClusterVer}->{NewClusterVer}",
+                    _lastRouteVersion, currentRouteVersion, _lastClusterVersion, currentClusterVersion);
+                
+                await ReloadConfigAsync(stoppingToken);
+                
+                _lastRouteVersion = currentRouteVersion;
+                _lastClusterVersion = currentClusterVersion;
+            }
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Error checking version for fallback");
+        }
+    }
+
+    private async Task UpdateVersionAsync(CancellationToken stoppingToken)
+    {
+        try
+        {
+            await using var scope = _serviceProvider.CreateAsyncScope();
+            await using var db = scope.ServiceProvider.GetRequiredService<GatewayDbContext>();
+
+            _lastRouteVersion = await db.TenantRoutes
+                .OrderByDescending(r => r.Version)
+                .Select(r => r.Version)
+                .FirstOrDefaultAsync(stoppingToken);
+
+            _lastClusterVersion = await db.ServiceInstances
+                .OrderByDescending(i => i.Version)
+                .Select(i => i.Version)
+                .FirstOrDefaultAsync(stoppingToken);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Error updating initial version");
+        }
+    }
+
+    private async Task ReloadConfigAsync(CancellationToken stoppingToken)
+    {
+        try
+        {
+            await using var scope = _serviceProvider.CreateAsyncScope();
+            
+            var routeCache = scope.ServiceProvider.GetRequiredService<IRouteCache>();
+            await routeCache.ReloadAsync();
+            
+            var configProvider = scope.ServiceProvider.GetRequiredService<DynamicProxyConfigProvider>();
+            configProvider.UpdateConfig();
+            
+            _logger.LogInformation("Configuration reloaded successfully");
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Error reloading configuration");
+        }
+    }
+
+    public override async Task StopAsync(CancellationToken cancellationToken)
+    {
+        _logger.LogInformation("Stopping PgSql config change listener");
+        _reloadChannel.Writer.Complete();
+        _connection?.Dispose();
+        await base.StopAsync(cancellationToken);
+    }
+}

YarpGateway.csproj

@@ -4,20 +4,33 @@
     <TargetFramework>net10.0</TargetFramework>
     <Nullable>enable</Nullable>
     <ImplicitUsings>enable</ImplicitUsings>
+    <DockerDefaultTargetOS>Linux</DockerDefaultTargetOS>
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.AspNetCore.Authentication.JwtBearer" Version="10.0.2" />
-    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="10.0.2">
+    <PackageReference Include="Microsoft.AspNetCore.Authentication.JwtBearer" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design">
       <IncludeAssets>runtime; build; native; contentfiles, analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>
-    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="10.0.0" />
-    <PackageReference Include="Serilog.AspNetCore" Version="9.0.0" />
-    <PackageReference Include="Serilog.Sinks.Console" Version="6.0.0" />
-    <PackageReference Include="Serilog.Sinks.File" Version="6.0.0" />
-    <PackageReference Include="StackExchange.Redis" Version="2.8.24" />
-    <PackageReference Include="Yarp.ReverseProxy" Version="2.2.0" />
+    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" />
+    <PackageReference Include="Serilog.AspNetCore" />
+    <PackageReference Include="Serilog.Sinks.Console" />
+    <PackageReference Include="Serilog.Sinks.File" />
+    <PackageReference Include="StackExchange.Redis" />
+    <PackageReference Include="Yarp.ReverseProxy" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\Fengling.ServiceDiscovery\Fengling.ServiceDiscovery.Core\Fengling.ServiceDiscovery.Core.csproj" />
+    <ProjectReference Include="..\Fengling.ServiceDiscovery\Fengling.ServiceDiscovery.Kubernetes\Fengling.ServiceDiscovery.Kubernetes.csproj" />
+    <ProjectReference Include="..\Fengling.ServiceDiscovery\Fengling.ServiceDiscovery.Static\Fengling.ServiceDiscovery.Static.csproj" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Content Include="..\..\.dockerignore">
+      <Link>.dockerignore</Link>
+    </Content>
   </ItemGroup>
 
 </Project>

appsettings.json

@@ -16,7 +16,7 @@
     "AllowAnyOrigin": false
   },
   "ConnectionStrings": {
-    "DefaultConnection": "Host=192.168.100.10;Port=5432;Database=fengling_gateway;Username=movingsam;Password=sl52788542"
+    "DefaultConnection": "Host=81.68.223.70;Port=15432;Database=fengling_gateway;Username=movingsam;Password=sl52788542"
   },
   "Jwt": {
     "Authority": "https://your-auth-server.com",
@@ -25,7 +25,7 @@
     "ValidateAudience": true
   },
   "Redis": {
-    "ConnectionString": "192.168.100.10:6379",
+    "ConnectionString": "81.68.223.70:6379",
     "Database": 0,
     "InstanceName": "YarpGateway"
   },

bin/Debug/net10.0/YarpGateway.runtimeconfig.json

@@ -1,20 +0,0 @@
-{
-  "runtimeOptions": {
-    "tfm": "net10.0",
-    "frameworks": [
-      {
-        "name": "Microsoft.NETCore.App",
-        "version": "10.0.0"
-      },
-      {
-        "name": "Microsoft.AspNetCore.App",
-        "version": "10.0.0"
-      }
-    ],
-    "configProperties": {
-      "System.GC.Server": true,
-      "System.Reflection.NullabilityInfoContext.IsSupported": true,
-      "System.Runtime.Serialization.EnableUnsafeBinaryFormatterSerialization": false
-    }
-  }
-}

bin/Debug/net10.0/YarpGateway.staticwebassets.endpoints.json

@@ -1 +0,0 @@
-{"Version":1,"ManifestType":"Build","Endpoints":[]}

bin/Debug/net10.0/appsettings.Development.json

@@ -1,8 +0,0 @@
-{
-  "Logging": {
-    "LogLevel": {
-      "Default": "Information",
-      "Microsoft.AspNetCore": "Warning"
-    }
-  }
-}

bin/Debug/net10.0/appsettings.json

@@ -1,64 +0,0 @@
-{
-  "Logging": {
-    "LogLevel": {
-      "Default": "Information",
-      "Microsoft.AspNetCore": "Warning",
-      "Yarp.ReverseProxy": "Information"
-    }
-  },
-  "AllowedHosts": "*",
-  "Cors": {
-    "AllowedOrigins": [
-      "http://localhost:5173",
-      "http://127.0.0.1:5173",
-      "http://localhost:5174"
-    ],
-    "AllowAnyOrigin": false
-  },
-  "ConnectionStrings": {
-    "DefaultConnection": "Host=192.168.100.10;Port=5432;Database=fengling_gateway;Username=movingsam;Password=sl52788542"
-  },
-  "Jwt": {
-    "Authority": "https://your-auth-server.com",
-    "Audience": "fengling-gateway",
-    "ValidateIssuer": true,
-    "ValidateAudience": true
-  },
-  "Redis": {
-    "ConnectionString": "192.168.100.10:6379",
-    "Database": 0,
-    "InstanceName": "YarpGateway"
-  },
-  "ReverseProxy": {
-    "Routes": {},
-    "Clusters": {}
-  },
-  "Serilog": {
-    "Using": ["Serilog.Sinks.Console", "Serilog.Sinks.File"],
-    "MinimumLevel": "Information",
-    "WriteTo": [
-      {
-        "Name": "Console",
-        "Args": {
-          "outputTemplate": "[{Timestamp:HH:mm:ss} {Level:u3}] {Message:lj}{NewLine}{Exception}"
-        }
-      },
-      {
-        "Name": "File",
-        "Args": {
-          "path": "logs/gateway-.log",
-          "rollingInterval": "Day",
-          "outputTemplate": "{Timestamp:yyyy-MM-dd HH:mm:ss.fff zzz} [{Level:u3}] {Message:lj}{NewLine}{Exception}"
-        }
-      }
-    ],
-    "Enrich": ["FromLogContext", "WithMachineName", "WithThreadId"]
-  },
-  "Kestrel": {
-    "Endpoints": {
-      "Http": {
-        "Url": "http://0.0.0.0:8080"
-      }
-    }
-  }
-}