Add start/stop option to dashboard and command line option to disable auto-start

src/Microsoft.Tye.Core/HostOptions.cs

@@ -12,6 +12,8 @@ public class HostOptions
 
         public List<string> Debug { get; } = new List<string>();
 
+        public List<string> NoStart { get; } = new List<string>();
+
         public string? DistributedTraceProvider { get; set; }
 
         public bool Docker { get; set; }

src/Microsoft.Tye.Hosting/Dashboard/Pages/Index.razor

@@ -19,6 +19,7 @@
             <th>Replicas</th>
             <th>Restarts</th>
             <th>Logs</th>
+            <th>Actions</th>
         </tr>
     </thead>
     <tbody>
@@ -92,16 +93,38 @@
                     <td>@service.Replicas.Count/@service.Description.Replicas</td>
                     <td>@service.Restarts</td>
                     <td><NavLink href="@logsPath">View</NavLink></td>
+                    <td>
+                        @if (CanStartStop(service))
+                        {
+                            if (service.Replicas.Count == 0)
+                            {
+                                <button @onclick="async () => await StartServiceAsync(service)" class="btn btn-default btn-xs">
+                                    <span class="oi oi-media-play"></span>
+                                </button>
+                            }
+                            else
+                            {
+                                <button @onclick="async () => await StopServiceAsync(service)" class="btn btn-default btn-xs">
+                                    <span class="oi oi-media-stop"></span>
+                                </button>
+                            }
+                        }
+                    </td>
                 }
             </tr>
         }
     </tbody>
 </table>
 
 @code {
-
+    static readonly ServiceType[] stopables = new[] { ServiceType.Container, ServiceType.Executable, ServiceType.Project, ServiceType.Function };
     private List<IDisposable> _subscriptions = new List<IDisposable>();
 
+    bool CanStartStop(Service? service)
+    {
+        return service != null && stopables.Contains(service.ServiceType);
+    }
+
     string GetUrl(ServiceBinding b)
     {
         return $"{(b.Protocol ?? "tcp")}://{b.Host ?? "localhost"}:{b.Port}";
@@ -120,6 +143,31 @@
         InvokeAsync(() => StateHasChanged());
     }
 
+    private async Task StartServiceAsync(Service service)
+    {
+        if (service.ServiceType == ServiceType.Container)
+        {
+            await DockerRunner.RestartContainerAsync(service);
+        }
+        else
+        {
+            await ProcessRunner.RestartService(service);
+        }
+    }
+
+    private async Task StopServiceAsync(Service service)
+    {
+        if (service.ServiceType == ServiceType.Container)
+        {
+            await DockerRunner.StopContainerAsync(service);
+        }
+        else
+        {
+            await ProcessRunner.KillProcessAsync(service);
+        }
+    }
+
+
     void IDisposable.Dispose()
     {
         _subscriptions.ForEach(d => d.Dispose());

src/Microsoft.Tye.Hosting/DockerRunner.cs

@@ -24,11 +24,13 @@ public class DockerRunner : IApplicationProcessor
         private readonly ILogger _logger;
 
         private readonly ReplicaRegistry _replicaRegistry;
+        private readonly DockerRunnerOptions _options;
 
-        public DockerRunner(ILogger logger, ReplicaRegistry replicaRegistry)
+        public DockerRunner(ILogger logger, ReplicaRegistry replicaRegistry, DockerRunnerOptions options)
         {
             _logger = logger;
             _replicaRegistry = replicaRegistry;
+            _options = options;
         }
 
         public async Task StartAsync(Application application)
@@ -537,15 +539,21 @@ Task DockerRunAsync(CancellationToken cancellationToken)
                 return Task.WhenAll(tasks);
             }
 
+            var dockerInfo = new DockerInformation();
             async Task BuildAndRunAsync(CancellationToken cancellationToken)
             {
                 await DockerBuildAsync(cancellationToken);
 
                 await DockerRunAsync(cancellationToken);
             }
 
-            var dockerInfo = new DockerInformation();
-            dockerInfo.Task = BuildAndRunAsync(dockerInfo.StoppingTokenSource.Token);
+            dockerInfo.SetBuildAndRunTask(BuildAndRunAsync);
+
+            if (!_options.ManualStartServices &&
+                !(_options.ServicesNotToStart?.Contains(service.Description.Name, StringComparer.OrdinalIgnoreCase) ?? false))
+            {
+                dockerInfo.BuildAndRun();
+            }
 
             service.Items[typeof(DockerInformation)] = dockerInfo;
         }
@@ -587,22 +595,53 @@ private static void PrintStdOutAndErr(Service service, string replica, ProcessRe
             }
         }
 
-        private Task StopContainerAsync(Service service)
+        public static async Task RestartContainerAsync(Service service)
+        {
+            if (service.Items.TryGetValue(typeof(DockerInformation), out var value) && value is DockerInformation di)
+            {
+                await StopContainerAsync(service);
+
+                di.BuildAndRun();
+                service.Restarts++;
+                await di.Task;
+            }
+        }
+
+        public static Task StopContainerAsync(Service service)
         {
             if (service.Items.TryGetValue(typeof(DockerInformation), out var value) && value is DockerInformation di)
             {
-                di.StoppingTokenSource.Cancel();
+                di.CancelAndResetStoppingTokenSource();
+                return di.Task ?? Task.CompletedTask;
 
-                return di.Task;
             }
 
             return Task.CompletedTask;
         }
 
         private class DockerInformation
         {
-            public Task Task { get; set; } = default!;
-            public CancellationTokenSource StoppingTokenSource { get; } = new CancellationTokenSource();
+            private Func<CancellationToken, Task>? _buildAndRunAsync;
+
+            public Task Task { get; private set; } = default!;
+            public CancellationTokenSource StoppingTokenSource { get; private set; } = new CancellationTokenSource();
+
+            public void SetBuildAndRunTask(Func<CancellationToken, Task> func)
+            {
+                _buildAndRunAsync = func;
+            }
+
+            public void BuildAndRun()
+            {
+                Task = _buildAndRunAsync?.Invoke(StoppingTokenSource.Token) ?? Task.CompletedTask;
+            }
+
+            internal void CancelAndResetStoppingTokenSource()
+            {
+                StoppingTokenSource.Cancel();
+                StoppingTokenSource.Dispose();
+                StoppingTokenSource = new CancellationTokenSource();
+            }
         }
 
         private class DockerApplicationInformation

src/Microsoft.Tye.Hosting/DockerRunnerOptions.cs

@@ -0,0 +1,24 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System;
+using System.Linq;
+
+namespace Microsoft.Tye.Hosting
+{
+    public class DockerRunnerOptions
+    {
+        public bool ManualStartServices { get; set; }
+        public string[]? ServicesNotToStart { get; set; }
+
+        public static DockerRunnerOptions FromHostOptions(HostOptions options)
+        {
+            return new DockerRunnerOptions
+            {
+                ManualStartServices = options.NoStart?.Contains("*", StringComparer.OrdinalIgnoreCase) ?? false,
+                ServicesNotToStart = options.NoStart?.ToArray()
+            };
+        }
+    }
+}

src/Microsoft.Tye.Hosting/ProcessRunner.cs

@@ -179,10 +179,11 @@ service.Description.RunInfo is ProjectRunInfo project2 &&
         }
 
         private void LaunchService(Application application, Service service)
+
         {
-            var serviceDescription = service.Description;
-            var processInfo = new ProcessInfo(new Task[service.Description.Replicas]);
-            var serviceName = serviceDescription.Name;
+            var processInfo = (service.Items.ContainsKey(typeof(ProcessInfo)) ? (ProcessInfo?)service.Items[typeof(ProcessInfo)] : null)
+                                      ?? new ProcessInfo(new Task[service.Description.Replicas]);
+            var serviceName = service.Description.Name;
 
             // Set by BuildAndRunService
             var args = service.Status.Args!;
@@ -258,7 +259,7 @@ async Task RunApplicationAsync(IEnumerable<(int ExternalPort, int Port, string?
 
                 var backOff = TimeSpan.FromSeconds(5);
 
-                while (!processInfo.StoppedTokenSource.IsCancellationRequested)
+                while (!processInfo!.StoppedTokenSource.IsCancellationRequested)
                 {
                     var replica = serviceName + "_" + Guid.NewGuid().ToString().Substring(0, 10).ToLower();
                     var status = new ProcessStatus(service, replica);
@@ -297,7 +298,7 @@ async Task RunApplicationAsync(IEnumerable<(int ExternalPort, int Port, string?
                     try
                     {
                         service.Logs.OnNext($"[{replica}]:{path} {copiedArgs}");
-                        var processInfo = new ProcessSpec
+                        var processSpec = new ProcessSpec
                         {
                             Executable = path,
                             WorkingDirectory = workingDirectory,
@@ -351,8 +352,10 @@ async Task RunApplicationAsync(IEnumerable<(int ExternalPort, int Port, string?
                                     // Only increase backoff when not watching project as watch will wait for file changes before rebuild.
                                     backOff *= 2;
                                 }
-
-                                service.Restarts++;
+                                if (!processInfo.StoppedTokenSource.IsCancellationRequested)
+                                {
+                                    service.Restarts++;
+                                }
 
                                 service.Replicas.TryRemove(replica, out var _);
                                 service.ReplicaEvents.OnNext(new ReplicaEvent(ReplicaState.Removed, status));
@@ -385,7 +388,7 @@ async Task RunApplicationAsync(IEnumerable<(int ExternalPort, int Port, string?
                             environment["DOTNET_WATCH"] = "1";
 
                             await new DotNetWatcher(_logger)
-                                .WatchAsync(processInfo, fileSetFactory, replica, status.StoppingTokenSource.Token);
+                                .WatchAsync(processSpec, fileSetFactory, replica, status.StoppingTokenSource.Token);
                         }
                         else if (_options.Watch && (service.Description.RunInfo is AzureFunctionRunInfo azureFunctionRunInfo) && !string.IsNullOrEmpty(azureFunctionRunInfo.ProjectFile))
                         {
@@ -397,11 +400,11 @@ async Task RunApplicationAsync(IEnumerable<(int ExternalPort, int Port, string?
                             environment["DOTNET_WATCH"] = "1";
 
                             await new DotNetWatcher(_logger)
-                                .WatchAsync(processInfo, fileSetFactory, replica, status.StoppingTokenSource.Token);
+                                .WatchAsync(processSpec, fileSetFactory, replica, status.StoppingTokenSource.Token);
                         }
                         else
                         {
-                            await ProcessUtil.RunAsync(processInfo, status.StoppingTokenSource.Token, throwOnError: false);
+                            await ProcessUtil.RunAsync(processSpec, status.StoppingTokenSource.Token, throwOnError: false);
                         }
                     }
                     catch (Exception ex)
@@ -429,50 +432,77 @@ async Task RunApplicationAsync(IEnumerable<(int ExternalPort, int Port, string?
                 }
             }
 
-            if (serviceDescription.Bindings.Count > 0)
+            void Start()
             {
-                // Each replica is assigned a list of internal ports, one mapped to each external
-                // port
-                for (int i = 0; i < serviceDescription.Replicas; i++)
+                if (service.Description!.Bindings.Count > 0)
                 {
-                    var ports = new List<(int, int, string?, string?)>();
-                    foreach (var binding in serviceDescription.Bindings)
+                    // Each replica is assigned a list of internal ports, one mapped to each external
+                    // port
+                    for (int i = 0; i < service.Description.Replicas; i++)
                     {
-                        if (binding.Port == null)
+                        var ports = new List<(int, int, string?, string?)>();
+                        foreach (var binding in service.Description.Bindings)
                         {
-                            continue;
+                            if (binding.Port == null)
+                            {
+                                continue;
+                            }
+
+                            ports.Add((binding.Port.Value, binding.ReplicaPorts[i], binding.Protocol, binding.Host));
                         }
 
-                        ports.Add((binding.Port.Value, binding.ReplicaPorts[i], binding.Protocol, binding.Host));
+                        processInfo!.Tasks[i] = RunApplicationAsync(ports, args);
+                    }
+                }
+                else
+                {
+                    for (int i = 0; i < service.Description.Replicas; i++)
+                    {
+                        processInfo!.Tasks[i] = RunApplicationAsync(Enumerable.Empty<(int, int, string?, string?)>(), args);
                     }
-
-                    processInfo.Tasks[i] = RunApplicationAsync(ports, args);
                 }
             }
+
+            processInfo.Start = Start;
+            service.Items[typeof(ProcessInfo)] = processInfo;
+            if (!_options.ManualStartServices && !(_options.ServicesNotToStart?.Contains(serviceName, StringComparer.OrdinalIgnoreCase) ?? false))
+            {
+                processInfo.Start();
+            }
             else
             {
-                for (int i = 0; i < service.Description.Replicas; i++)
+                for (int i = 0; i < processInfo.Tasks.Length; i++)
                 {
-                    processInfo.Tasks[i] = RunApplicationAsync(Enumerable.Empty<(int, int, string?, string?)>(), args);
+                    processInfo.Tasks[i] = Task.CompletedTask;
                 }
             }
+        }
 
-            service.Items[typeof(ProcessInfo)] = processInfo;
+        public static async Task RestartService(Service service)
+        {
+            if (service.Items.TryGetValue(typeof(ProcessInfo), out var stateObj) && stateObj is ProcessInfo state)
+            {
+                await KillProcessAsync(service);
+                service.Restarts++;
+                state.Start?.Invoke();
+                await Task.WhenAll(state.Tasks);
+            }
         }
 
-        private Task KillRunningProcesses(IDictionary<string, Service> services)
+        public static async Task KillProcessAsync(Service service)
         {
-            static Task KillProcessAsync(Service service)
+            if (service.Items.TryGetValue(typeof(ProcessInfo), out var stateObj) && stateObj is ProcessInfo state)
             {
-                if (service.Items.TryGetValue(typeof(ProcessInfo), out var stateObj) && stateObj is ProcessInfo state)
-                {
-                    // Cancel the token before stopping the process
-                    state.StoppedTokenSource.Cancel();
+                // Cancel the token before stopping the process
+                state.StoppedTokenSource?.Cancel();
 
-                    return Task.WhenAll(state.Tasks);
-                }
-                return Task.CompletedTask;
+                await Task.WhenAll(state.Tasks);
+                state.ResetStoppedTokenSource();
             }
+        }
+
+        private Task KillRunningProcesses(IDictionary<string, Service> services)
+        {
 
             var index = 0;
             var tasks = new Task[services.Count];
@@ -541,7 +571,13 @@ public ProcessInfo(Task[] tasks)
 
             public Task[] Tasks { get; }
 
-            public CancellationTokenSource StoppedTokenSource { get; } = new CancellationTokenSource();
+            public CancellationTokenSource StoppedTokenSource { get; private set; } = new CancellationTokenSource();
+            public Action? Start { get; internal set; }
+            internal void ResetStoppedTokenSource()
+            {
+                StoppedTokenSource.Dispose();
+                StoppedTokenSource = new CancellationTokenSource();
+            }
         }
 
         private class ProjectGroup