private void WaitUntilSiteStarted() { ServiceController serviceController = new ServiceController("w3svc"); Logger.LogInformation("W3SVC status " + serviceController.Status); if (serviceController.Status != ServiceControllerStatus.Running && serviceController.Status != ServiceControllerStatus.StartPending) { Logger.LogInformation("Starting W3SVC"); serviceController.Start(); serviceController.WaitForStatus(ServiceControllerStatus.Running, _timeout); } RetryServerManagerAction(serverManager => { var site = serverManager.Sites.Single(); var appPool = serverManager.ApplicationPools.Single(); if (appPool.State != ObjectState.Started && appPool.State != ObjectState.Starting) { var state = appPool.Start(); Logger.LogInformation($"Starting pool, state: {state.ToString()}"); } if (site.State != ObjectState.Started && site.State != ObjectState.Starting) { var state = site.Start(); Logger.LogInformation($"Starting site, state: {state.ToString()}"); } if (site.State != ObjectState.Started) { throw new InvalidOperationException("Site not started yet"); } var workerProcess = appPool.WorkerProcesses.SingleOrDefault(); if (workerProcess == null) { throw new InvalidOperationException("Site is started but no worked process found"); } HostProcess = Process.GetProcessById(workerProcess.ProcessId); // Ensure w3wp.exe is killed if test process termination is non-graceful. // Prevents locked files when stop debugging unit test. ProcessTracker.Add(HostProcess); // cache the process start time for verifying log file name. var _ = HostProcess.StartTime; Logger.LogInformation("Site has started."); }); }
private async Task <(Uri url, CancellationToken hostExitToken)> StartIISExpressAsync(Uri uri, string contentRoot) { using (Logger.BeginScope("StartIISExpress")) { var port = uri.Port; if (port == 0) { port = (uri.Scheme == "https") ? TestPortHelper.GetNextSSLPort() : TestPortHelper.GetNextPort(); } Logger.LogInformation("Attempting to start IIS Express on port: {port}", port); PrepareConfig(contentRoot, port); var parameters = string.IsNullOrEmpty(DeploymentParameters.ServerConfigLocation) ? string.Format("/port:{0} /path:\"{1}\" /trace:error /systray:false", uri.Port, contentRoot) : string.Format("/site:{0} /config:{1} /trace:error /systray:false", DeploymentParameters.SiteName, DeploymentParameters.ServerConfigLocation); var iisExpressPath = GetIISExpressPath(); for (var attempt = 0; attempt < MaximumAttempts; attempt++) { Logger.LogInformation("Executing command : {iisExpress} {parameters}", iisExpressPath, parameters); var startInfo = new ProcessStartInfo { FileName = iisExpressPath, Arguments = parameters, UseShellExecute = false, CreateNoWindow = true, RedirectStandardError = true, RedirectStandardOutput = true, // VS sets current directory to C:\Program Files\IIS Express WorkingDirectory = Path.GetDirectoryName(iisExpressPath) }; AddEnvironmentVariablesToProcess(startInfo, DeploymentParameters.EnvironmentVariables); Uri url = null; var started = new TaskCompletionSource <bool>(); var process = new Process() { StartInfo = startInfo }; process.OutputDataReceived += (sender, dataArgs) => { if (string.Equals(dataArgs.Data, UnableToStartIISExpressMessage)) { // We completely failed to start and we don't really know why started.TrySetException(new InvalidOperationException("Failed to start IIS Express")); } else if (string.Equals(dataArgs.Data, FailedToInitializeBindingsMessage)) { started.TrySetResult(false); } else if (string.Equals(dataArgs.Data, IISExpressRunningMessage)) { started.TrySetResult(true); } else if (!string.IsNullOrEmpty(dataArgs.Data)) { var m = UrlDetectorRegex.Match(dataArgs.Data); if (m.Success) { url = new Uri(m.Groups["url"].Value); } } }; process.EnableRaisingEvents = true; var hostExitTokenSource = new CancellationTokenSource(); process.Exited += (sender, e) => { Logger.LogInformation("iisexpress Process {pid} shut down", process.Id); // If TrySetResult was called above, this will just silently fail to set the new state, which is what we want started.TrySetException(new Exception($"Command exited unexpectedly with exit code: {process.ExitCode}")); TriggerHostShutdown(hostExitTokenSource); }; process.StartAndCaptureOutAndErrToLogger("iisexpress", Logger); Logger.LogInformation("iisexpress Process {pid} started", process.Id); if (process.HasExited) { Logger.LogError("Host process {processName} {pid} exited with code {exitCode} or failed to start.", startInfo.FileName, process.Id, process.ExitCode); throw new Exception("Failed to start host"); } // Wait for the app to start // The timeout here is large, because we don't know how long the test could need // We cover a lot of error cases above, but I want to make sure we eventually give up and don't hang the build // just in case we missed one -anurse if (!await started.Task.TimeoutAfter(TimeSpan.FromMinutes(10))) { Logger.LogInformation("iisexpress Process {pid} failed to bind to port {port}, trying again", process.Id, port); // Wait for the process to exit and try again process.WaitForExit(30 * 1000); await Task.Delay(1000); // Wait a second to make sure the socket is completely cleaned up } else { _hostProcess = process; // Ensure iisexpress.exe is killed if test process termination is non-graceful. // Prevents locked files when stop debugging unit test. ProcessTracker.Add(_hostProcess); // cache the process start time for verifying log file name. var _ = _hostProcess.StartTime; Logger.LogInformation("Started iisexpress successfully. Process Id : {processId}, Port: {port}", _hostProcess.Id, port); return(url : url, hostExitToken : hostExitTokenSource.Token); } } var message = $"Failed to initialize IIS Express after {MaximumAttempts} attempts to select a port"; Logger.LogError(message); throw new TimeoutException(message); } }