Add Nginx Deployer

src/Microsoft.AspNetCore.Server.Testing/Common/DeploymentParameters.cs

@@ -61,9 +61,9 @@ namespace Microsoft.AspNetCore.Server.Testing
 
         public string EnvironmentName { get; set; }
 
-        public string ApplicationHostConfigTemplateContent { get; set; }
+        public string ServerConfigTemplateContent { get; set; }
 
-        public string ApplicationHostConfigLocation { get; set; }
+        public string ServerConfigLocation { get; set; }
 
         public string SiteName { get; set; }
 

src/Microsoft.AspNetCore.Server.Testing/Common/ServerType.cs

@@ -8,6 +8,7 @@ namespace Microsoft.AspNetCore.Server.Testing
         IISExpress,
         IIS,
         WebListener,
-        Kestrel
+        Kestrel,
+        Nginx
     }
 }

src/Microsoft.AspNetCore.Server.Testing/Deployers/ApplicationDeployerFactory.cs

@@ -40,6 +40,8 @@ namespace Microsoft.AspNetCore.Server.Testing
                 case ServerType.WebListener:
                 case ServerType.Kestrel:
                     return new SelfHostDeployer(deploymentParameters, logger);
+                case ServerType.Nginx:
+                    return new NginxDeployer(deploymentParameters, logger);
                 default:
                     throw new NotSupportedException(
                         string.Format("Found no deployers suitable for server type '{0}' with the current runtime.", 

src/Microsoft.AspNetCore.Server.Testing/Deployers/IISExpressDeployer.cs

@@ -50,19 +50,19 @@ namespace Microsoft.AspNetCore.Server.Testing
 
         private CancellationToken StartIISExpress(Uri uri)
         {
-            if (!string.IsNullOrWhiteSpace(DeploymentParameters.ApplicationHostConfigTemplateContent))
+            if (!string.IsNullOrWhiteSpace(DeploymentParameters.ServerConfigTemplateContent))
             {
                 // Pass on the applicationhost.config to iis express. With this don't need to pass in the /path /port switches as they are in the applicationHost.config
                 // We take a copy of the original specified applicationHost.Config to prevent modifying the one in the repo.
 
-                DeploymentParameters.ApplicationHostConfigTemplateContent =
-                    DeploymentParameters.ApplicationHostConfigTemplateContent
+                DeploymentParameters.ServerConfigTemplateContent =
+                    DeploymentParameters.ServerConfigTemplateContent
                         .Replace("[ApplicationPhysicalPath]", DeploymentParameters.ApplicationPath)
                         .Replace("[PORT]", uri.Port.ToString());
 
-                DeploymentParameters.ApplicationHostConfigLocation = Path.GetTempFileName();
+                DeploymentParameters.ServerConfigLocation = Path.GetTempFileName();
 
-                File.WriteAllText(DeploymentParameters.ApplicationHostConfigLocation, DeploymentParameters.ApplicationHostConfigTemplateContent);
+                File.WriteAllText(DeploymentParameters.ServerConfigLocation, DeploymentParameters.ServerConfigTemplateContent);
             }
 
             var webroot = DeploymentParameters.ApplicationPath;
@@ -71,9 +71,9 @@ namespace Microsoft.AspNetCore.Server.Testing
                 webroot = Path.Combine(webroot, "wwwroot");
             }
 
-            var parameters = string.IsNullOrWhiteSpace(DeploymentParameters.ApplicationHostConfigLocation) ?
+            var parameters = string.IsNullOrWhiteSpace(DeploymentParameters.ServerConfigLocation) ?
                             string.Format("/port:{0} /path:\"{1}\" /trace:error", uri.Port, webroot) :
-                            string.Format("/site:{0} /config:{1} /trace:error", DeploymentParameters.SiteName, DeploymentParameters.ApplicationHostConfigLocation);
+                            string.Format("/site:{0} /config:{1} /trace:error", DeploymentParameters.SiteName, DeploymentParameters.ServerConfigLocation);
 
             var iisExpressPath = GetIISExpressPath();
 
@@ -140,18 +140,18 @@ namespace Microsoft.AspNetCore.Server.Testing
         {
             ShutDownIfAnyHostProcess(_hostProcess);
 
-            if (!string.IsNullOrWhiteSpace(DeploymentParameters.ApplicationHostConfigLocation)
-                && File.Exists(DeploymentParameters.ApplicationHostConfigLocation))
+            if (!string.IsNullOrWhiteSpace(DeploymentParameters.ServerConfigLocation)
+                && File.Exists(DeploymentParameters.ServerConfigLocation))
             {
                 // Delete the temp applicationHostConfig that we created.
                 try
                 {
-                    File.Delete(DeploymentParameters.ApplicationHostConfigLocation);
+                    File.Delete(DeploymentParameters.ServerConfigLocation);
                 }
                 catch (Exception exception)
                 {
                     // Ignore delete failures - just write a log.
-                    Logger.LogWarning("Failed to delete '{config}'. Exception : {exception}", DeploymentParameters.ApplicationHostConfigLocation, exception.Message);
+                    Logger.LogWarning("Failed to delete '{config}'. Exception : {exception}", DeploymentParameters.ServerConfigLocation, exception.Message);
                 }
             }
 

src/Microsoft.AspNetCore.Server.Testing/Deployers/NginxDeployer.cs

@@ -0,0 +1,138 @@
+// Copyright (c) .NET Foundation. All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+
+using System;
+using System.Diagnostics;
+using System.IO;
+using System.Net.Http;
+using Microsoft.AspNetCore.Server.Testing.Common;
+using Microsoft.Extensions.Logging;
+
+namespace Microsoft.AspNetCore.Server.Testing
+{
+    /// <summary>
+    /// Deployer for Kestrel on Nginx.
+    /// </summary>
+    public class NginxDeployer : SelfHostDeployer
+    {
+        private string _configFile;
+        private readonly int _waitTime = (int)TimeSpan.FromSeconds(30).TotalMilliseconds;
+
+        public NginxDeployer(DeploymentParameters deploymentParameters, ILogger logger)
+            : base(deploymentParameters, logger)
+        {
+        }
+
+        public override DeploymentResult Deploy()
+        {
+            _configFile = Path.GetTempFileName();
+            var uri = new Uri(DeploymentParameters.ApplicationBaseUriHint);
+
+            var redirectUri = $"http://localhost:{TestUriHelper.FindFreePort()}";
+
+            var exitToken = StartSelfHost(new Uri(redirectUri));
+
+            SetupNginx(redirectUri, uri);
+
+            // Wait for App to be loaded since Nginx returns 502 instead of 503 when App isn't loaded
+            // Target actual address to avoid going through Nginx proxy
+            using (var httpClient = new HttpClient())
+            {
+                var response = RetryHelper.RetryRequest(() =>
+                {
+                    return httpClient.GetAsync(redirectUri);
+                }, Logger).Result;
+
+                if (!response.IsSuccessStatusCode)
+                {
+                    throw new InvalidOperationException("Deploy failed");
+                }
+            }
+            
+            return new DeploymentResult
+            {
+                WebRootLocation = DeploymentParameters.ApplicationPath,
+                DeploymentParameters = DeploymentParameters,
+                ApplicationBaseUri = uri.ToString(),
+                HostShutdownToken = exitToken
+            };
+        }
+
+        private void SetupNginx(string redirectUri, Uri originalUri)
+        {
+            // copy nginx.conf template and replace pertinent information
+            DeploymentParameters.ServerConfigTemplateContent = DeploymentParameters.ServerConfigTemplateContent
+                .Replace("[user]", Environment.GetEnvironmentVariable("LOGNAME"))
+                .Replace("[listenPort]", originalUri.Port.ToString())
+                .Replace("[redirectUri]", redirectUri)
+                .Replace("[pidFile]", Path.Combine(DeploymentParameters.ApplicationPath, Guid.NewGuid().ToString()));
+            File.WriteAllText(_configFile, DeploymentParameters.ServerConfigTemplateContent);
+
+            var startInfo = new ProcessStartInfo
+            {
+                FileName = "nginx",
+                Arguments = $"-c {_configFile}",
+                UseShellExecute = false,
+                CreateNoWindow = true,
+                RedirectStandardError = true,
+                RedirectStandardOutput = true,
+                // Trying a work around for https://github.com/aspnet/Hosting/issues/140.
+                RedirectStandardInput = true
+            };
+
+            using (var runNginx = new Process() { StartInfo = startInfo })
+            {
+                runNginx.ErrorDataReceived += (sender, dataArgs) =>
+                {
+                    if (!string.IsNullOrEmpty(dataArgs.Data))
+                    {
+                        Logger.LogWarning("nginx: " + dataArgs.Data);
+                    }
+                };
+                runNginx.OutputDataReceived += (sender, dataArgs) =>
+                {
+                    if (!string.IsNullOrEmpty(dataArgs.Data))
+                    {
+                        Logger.LogInformation("nginx: " + dataArgs.Data);
+                    }
+                };
+                runNginx.Start();
+                runNginx.BeginErrorReadLine();
+                runNginx.BeginOutputReadLine();
+                runNginx.WaitForExit(_waitTime);
+                if (runNginx.ExitCode != 0)
+                {
+                    throw new Exception("Failed to start Nginx");
+                }
+            }
+        }
+
+        public override void Dispose()
+        {
+            if (!string.IsNullOrEmpty(_configFile))
+            {
+                var startInfo = new ProcessStartInfo
+                {
+                    FileName = "nginx",
+                    Arguments = $"-s stop -c {_configFile}",
+                    UseShellExecute = false,
+                    CreateNoWindow = true,
+                    RedirectStandardError = true,
+                    RedirectStandardOutput = true,
+                    // Trying a work around for https://github.com/aspnet/Hosting/issues/140.
+                    RedirectStandardInput = true
+                };
+
+                using (var runNginx = new Process() { StartInfo = startInfo })
+                {
+                    runNginx.Start();
+                    runNginx.WaitForExit(_waitTime);
+                }
+
+                File.Delete(_configFile);
+            }
+
+            base.Dispose();
+        }
+    }
+}

src/Microsoft.AspNetCore.Server.Testing/Deployers/SelfHostDeployer.cs

@@ -46,7 +46,7 @@ namespace Microsoft.AspNetCore.Server.Testing
             };
         }
 
-        private CancellationToken StartSelfHost(Uri uri)
+        protected CancellationToken StartSelfHost(Uri uri)
         {
             string executableName;
             string executableArgs = string.Empty;