Implemented factory pattern for server abstraction creation. Implemented raw fs and docker provisioner. Implemented docker event service with observer pattern

MoonlightServers.Daemon/Configuration/AppConfiguration.cs

@@ -44,10 +44,10 @@ public class AppConfiguration
     
     public class StorageData
     {
-        public string Volumes { get; set; } = PathBuilder.Dir("volumes");
-        public string VirtualDisks { get; set; } = PathBuilder.Dir("virtualDisks");
-        public string Backups { get; set; } = PathBuilder.Dir("backups");
-        public string Install { get; set; } = PathBuilder.Dir("install");
+        public string Volumes { get; set; } = Path.Combine("storage", "volumes");
+        public string VirtualDisks { get; set; } = Path.Combine("storage", "virtualDisks");
+        public string Backups { get; set; } = Path.Combine("storage", "backups");
+        public string Install { get; set; } =Path.Combine("storage", "install");
 
         public VirtualDiskData VirtualDiskOptions { get; set; } = new();
     }

MoonlightServers.Daemon/Helpers/CompositeServiceProvider.cs

@@ -0,0 +1,24 @@
+namespace MoonlightServers.Daemon.Helpers;
+
+public class CompositeServiceProvider : IServiceProvider
+{
+    private readonly List<IServiceProvider> ServiceProviders;
+
+    public CompositeServiceProvider(params IServiceProvider[] serviceProviders)
+    {
+        ServiceProviders = new List<IServiceProvider>(serviceProviders);
+    }
+
+    public object? GetService(Type serviceType)
+    {
+        foreach (var provider in ServiceProviders)
+        {
+            var service = provider.GetService(serviceType);
+            
+            if (service != null)
+                return service;
+        }
+
+        return null;
+    }
+}

MoonlightServers.Daemon/Mappers/ServerConfigurationMapper.cs

@@ -0,0 +1,284 @@
+using Docker.DotNet.Models;
+using Mono.Unix.Native;
+using MoonCore.Helpers;
+using MoonlightServers.Daemon.Configuration;
+using MoonlightServers.Daemon.Models.Cache;
+
+namespace MoonlightServers.Daemon.Mappers;
+
+public class ServerConfigurationMapper
+{
+    private readonly AppConfiguration AppConfiguration;
+
+    public ServerConfigurationMapper(AppConfiguration appConfiguration)
+    {
+        AppConfiguration = appConfiguration;
+    }
+
+    public CreateContainerParameters ToRuntimeParameters(
+        ServerConfiguration serverConfiguration,
+        string hostPath,
+        string containerName
+    )
+    {
+        var parameters = ToSharedParameters(serverConfiguration);
+
+        #region Security
+
+        parameters.HostConfig.CapDrop = new List<string>()
+        {
+            "setpcap", "mknod", "audit_write", "net_raw", "dac_override",
+            "fowner", "fsetid", "net_bind_service", "sys_chroot", "setfcap"
+        };
+
+        parameters.HostConfig.ReadonlyRootfs = true;
+        parameters.HostConfig.SecurityOpt = new List<string>()
+        {
+            "no-new-privileges"
+        };
+
+        #endregion
+
+        #region Name
+
+        parameters.Name = containerName;
+        parameters.Hostname = containerName;
+
+        #endregion
+
+        #region Docker Image
+
+        parameters.Image = serverConfiguration.DockerImage;
+
+        #endregion
+
+        #region Working Dir
+
+        parameters.WorkingDir = "/home/container";
+
+        #endregion
+
+        #region User
+
+        // TODO: Extract this to an external service with config options and return a userspace user id and a install user id
+        // in order to know which permissions are required in order to run the container with the correct permissions
+        
+        var userId = Syscall.getuid();
+
+        if (userId == 0)
+            userId = 998;
+
+        parameters.User = $"{userId}:{userId}";
+
+        /*
+        if (userId == 0)
+        {
+            // We are running as root, so we need to run the container as another user and chown the files when we make changes
+            parameters.User = $"998:998";
+        }
+        else
+        {
+            // We are not running as root, so we start the container as the same user,
+            // as we are not able to chown the container content to a different user
+            parameters.User = $"{userId}:{userId}";
+        }*/
+
+        #endregion
+
+        #region Mounts
+
+        parameters.HostConfig.Mounts = new List<Mount>();
+
+        parameters.HostConfig.Mounts.Add(new()
+        {
+            Source = hostPath,
+            Target = "/home/container",
+            ReadOnly = false,
+            Type = "bind"
+        });
+
+        #endregion
+
+        #region Port Bindings
+
+        if (true) // TODO: Add network toggle
+        {
+            parameters.ExposedPorts = new Dictionary<string, EmptyStruct>();
+            parameters.HostConfig.PortBindings = new Dictionary<string, IList<PortBinding>>();
+
+            foreach (var allocation in serverConfiguration.Allocations)
+            {
+                parameters.ExposedPorts.Add($"{allocation.Port}/tcp", new());
+                parameters.ExposedPorts.Add($"{allocation.Port}/udp", new());
+
+                parameters.HostConfig.PortBindings.Add($"{allocation.Port}/tcp", new List<PortBinding>
+                {
+                    new()
+                    {
+                        HostPort = allocation.Port.ToString(),
+                        HostIP = allocation.IpAddress
+                    }
+                });
+
+                parameters.HostConfig.PortBindings.Add($"{allocation.Port}/udp", new List<PortBinding>
+                {
+                    new()
+                    {
+                        HostPort = allocation.Port.ToString(),
+                        HostIP = allocation.IpAddress
+                    }
+                });
+            }
+        }
+
+        #endregion
+
+        // TODO: Implement a way to directly startup a server without using the entrypoint.sh and parsing the startup command here
+        // in the daemon instead of letting it the entrypoint do. iirc pelican wants to do that as well so we need to do that
+        // sooner or later in order to stay compatible to pelican
+        // Possible flag name: LegacyEntrypointMode
+        
+        return parameters;
+    }
+
+    public CreateContainerParameters ToSharedParameters(ServerConfiguration serverConfiguration)
+    {
+        var parameters = new CreateContainerParameters()
+        {
+            HostConfig = new()
+        };
+
+        #region Input, output & error streams and tty
+
+        parameters.Tty = true;
+        parameters.AttachStderr = true;
+        parameters.AttachStdin = true;
+        parameters.AttachStdout = true;
+        parameters.OpenStdin = true;
+
+        #endregion
+
+        #region CPU
+
+        parameters.HostConfig.CPUQuota = serverConfiguration.Cpu * 1000;
+        parameters.HostConfig.CPUPeriod = 100000;
+        parameters.HostConfig.CPUShares = 1024;
+
+        #endregion
+
+        #region Memory & Swap
+
+        var memoryLimit = serverConfiguration.Memory;
+
+        // The overhead multiplier gives the container a little bit more memory to prevent crashes
+        var memoryOverhead = memoryLimit + (memoryLimit * AppConfiguration.Server.MemoryOverheadMultiplier);
+
+        long swapLimit = -1;
+
+        /*
+
+        // If swap is enabled globally and not disabled on this server, set swap
+        if (!configuration.Limits.DisableSwap && config.Server.EnableSwap)
+            swapLimit = (long)(memoryOverhead + memoryOverhead * config.Server.SwapMultiplier);
+            co
+            */
+
+        // Finalize limits by converting and updating the host config
+        parameters.HostConfig.Memory = ByteConverter.FromMegaBytes((long)memoryOverhead, 1000).Bytes;
+        parameters.HostConfig.MemoryReservation = ByteConverter.FromMegaBytes(memoryLimit, 1000).Bytes;
+        parameters.HostConfig.MemorySwap =
+            swapLimit == -1 ? swapLimit : ByteConverter.FromMegaBytes(swapLimit, 1000).Bytes;
+
+        #endregion
+
+        #region Misc Limits
+
+        // -- Other limits
+        parameters.HostConfig.BlkioWeight = 100;
+        //container.HostConfig.PidsLimit = configuration.Limits.PidsLimit;
+        parameters.HostConfig.OomKillDisable = true; //!configuration.Limits.EnableOomKill;
+
+        #endregion
+
+        #region DNS
+
+        // TODO: Read hosts dns settings?
+
+        parameters.HostConfig.DNS = /*config.Docker.DnsServers.Any() ? config.Docker.DnsServers :*/ new List<string>()
+        {
+            "1.1.1.1",
+            "9.9.9.9"
+        };
+
+        #endregion
+
+        #region Tmpfs
+
+        parameters.HostConfig.Tmpfs = new Dictionary<string, string>()
+        {
+            { "/tmp", $"rw,exec,nosuid,size={AppConfiguration.Server.TmpFsSize}M" }
+        };
+
+        #endregion
+
+        #region Logging
+
+        parameters.HostConfig.LogConfig = new()
+        {
+            Type = "json-file", // We need to use this provider, as the GetLogs endpoint needs it
+            Config = new Dictionary<string, string>()
+        };
+
+        #endregion
+
+        #region Labels
+
+        parameters.Labels = new Dictionary<string, string>();
+
+        parameters.Labels.Add("Software", "Moonlight-Panel");
+        parameters.Labels.Add("ServerId", serverConfiguration.Id.ToString());
+
+        #endregion
+
+        #region Environment
+
+        parameters.Env = CreateEnvironmentVariables(serverConfiguration);
+
+        #endregion
+
+        return parameters;
+    }
+
+    private List<string> CreateEnvironmentVariables(ServerConfiguration serverConfiguration)
+    {
+        var result = new Dictionary<string, string>
+        {
+            //TODO: Add timezone, add server ip
+            { "STARTUP", serverConfiguration.StartupCommand },
+            { "SERVER_MEMORY", serverConfiguration.Memory.ToString() }
+        };
+
+        if (serverConfiguration.Allocations.Length > 0)
+        {
+            for (var i = 0; i < serverConfiguration.Allocations.Length; i++)
+            {
+                var allocation = serverConfiguration.Allocations[i];
+                
+                result.Add($"ML_PORT_{i}", allocation.Port.ToString());
+
+                if (i == 0) // TODO: Implement a way to set the default/main allocation
+                {
+                    result.Add("SERVER_IP", allocation.IpAddress);
+                    result.Add("SERVER_PORT", allocation.Port.ToString());
+                }
+            }
+        }
+        
+        // Copy variables as env vars
+        foreach (var variable in serverConfiguration.Variables)
+            result.Add(variable.Key, variable.Value);
+
+        // Convert to the format of the docker library
+        return result.Select(variable => $"{variable.Key}={variable.Value}").ToList();
+    }
+}

MoonlightServers.Daemon/ServerSys/Abstractions/IConsole.cs

@@ -10,6 +10,7 @@ public interface IConsole : IServerComponent
     
     public Task WriteToOutput(string content);
     public Task WriteToInput(string content);
+    public Task WriteToMoonlight(string content);
     
     public Task ClearOutput();
     public string[] GetOutput();

MoonlightServers.Daemon/ServerSys/Abstractions/IProvisioner.cs

@@ -4,10 +4,11 @@ public interface IProvisioner : IServerComponent
 {
     public IAsyncObservable<object> OnExited { get; set; }
 
+    public Task Provision();
     public Task Start();
     public Task Stop();
     public Task Kill();
-    public Task Cleanup();
+    public Task Deprovision();
     
     public Task<ServerCrash?> SearchForCrash();
 }

MoonlightServers.Daemon/ServerSys/Abstractions/Server.cs

@@ -119,8 +119,59 @@ public class Server : IAsyncDisposable
 
         // Handle transitions
 
+        StateMachine.Configure(ServerState.Starting)
+            .OnActivateAsync(HandleStart);
     }
 
+    #region State machine handlers
+
+    private async Task HandleStart()
+    {
+        try
+        {
+            // Plan for starting the server:
+            // 1. Fetch latest configuration from panel (maybe: and perform sync)
+            // 2. Ensure that the file system exists
+            // 3. Mount the file system
+            // 4. Provision the container
+            // 5. Attach console to container
+            // 6. Start the container
+            
+            // 1. Fetch latest configuration from panel
+            // TODO: Implement
+
+            // 2. Ensure that the file system exists
+            if (!FileSystem.Exists)
+            {
+                await Console.WriteToMoonlight("Creating storage");
+                await FileSystem.Create();
+            }
+
+            // 3. Mount the file system
+            if (!FileSystem.IsMounted)
+            {
+                await Console.WriteToMoonlight("Mounting storage");
+                await FileSystem.Mount();
+            }
+            
+            // 4. Provision the container
+            await Console.WriteToMoonlight("Provisioning runtime");
+            await Provisioner.Provision();
+            
+            // 5. Attach console to container
+            await Console.AttachToRuntime();
+            
+            // 6. Start the container
+            await Provisioner.Start();
+        }
+        catch (Exception e)
+        {
+            Logger.LogError(e, "An error occured while starting the server");
+        }
+    }
+
+    #endregion
+
     public async ValueTask DisposeAsync()
     {
         if (ProvisionExitSubscription != null)

MoonlightServers.Daemon/ServerSys/Abstractions/ServerMeta.cs

@@ -0,0 +1,10 @@
+using MoonlightServers.Daemon.Models.Cache;
+
+namespace MoonlightServers.Daemon.ServerSys.Abstractions;
+
+public record ServerMeta
+{
+    public ServerConfiguration Configuration { get; set; }
+    public IServiceCollection ServiceCollection { get; set; }
+    public IServiceProvider ServiceProvider { get; set; }
+}

MoonlightServers.Daemon/ServerSys/Implementations/DockerConsole.cs

@@ -1,6 +1,9 @@
 using System.Reactive.Linq;
 using System.Reactive.Subjects;
+using System.Text;
 using Docker.DotNet;
+using Docker.DotNet.Models;
+using Microsoft.Extensions.Options;
 using MoonCore.Helpers;
 using MoonlightServers.Daemon.ServerSys.Abstractions;
 
@@ -15,12 +18,18 @@ public class DockerConsole : IConsole
     private readonly AsyncSubject<string> OnInputSubject = new();
 
     private readonly ConcurrentList<string> OutputCache = new();
-
     private readonly DockerClient DockerClient;
     private readonly ILogger<DockerConsole> Logger;
+    private readonly ServerMeta Meta;
+    
     private MultiplexedStream? CurrentStream;
     private CancellationTokenSource Cts = new();
     
+    public DockerConsole(ServerMeta meta)
+    {
+        Meta = meta;
+    }
+
     public Task Initialize()
         => Task.CompletedTask;
 
@@ -29,12 +38,101 @@ public class DockerConsole : IConsole
 
     public async Task AttachToRuntime()
     {
-        throw new NotImplementedException();
+        var containerName = $"moonlight-runtime-{Meta.Configuration.Id}";
+        await AttachStream(containerName);
     }
 
     public async Task AttachToInstallation()
     {
-        throw new NotImplementedException();
+        var containerName = $"moonlight-install-{Meta.Configuration.Id}";
+        await AttachStream(containerName);
+    }
+
+    private Task AttachStream(string containerName)
+    {
+        Task.Run(async () =>
+        {
+            // This loop is here to reconnect to the container if for some reason the container
+            // attach stream fails before the server tasks have been canceled i.e. the before the server
+            // goes offline
+
+            while (!Cts.Token.IsCancellationRequested)
+            {
+                try
+                {
+                    CurrentStream = await DockerClient.Containers.AttachContainerAsync(
+                        containerName,
+                        true,
+                        new ContainerAttachParameters()
+                        {
+                            Stderr = true,
+                            Stdin = true,
+                            Stdout = true,
+                            Stream = true
+                        },
+                        Cts.Token
+                    );
+
+                    var buffer = new byte[1024];
+
+                    try
+                    {
+                        // Read while server tasks are not canceled
+                        while (!Cts.Token.IsCancellationRequested)
+                        {
+                            var readResult = await CurrentStream.ReadOutputAsync(
+                                buffer,
+                                0,
+                                buffer.Length,
+                                Cts.Token
+                            );
+
+                            if (readResult.EOF)
+                                break;
+
+                            var resizedBuffer = new byte[readResult.Count];
+                            Array.Copy(buffer, resizedBuffer, readResult.Count);
+                            buffer = new byte[buffer.Length];
+
+                            var decodedText = Encoding.UTF8.GetString(resizedBuffer);
+                            await WriteToOutput(decodedText);
+                        }
+                    }
+                    catch (TaskCanceledException)
+                    {
+                        // Ignored
+                    }
+                    catch (OperationCanceledException)
+                    {
+                        // Ignored
+                    }
+                    catch (Exception e)
+                    {
+                        Logger.LogWarning("An unhandled error occured while reading from container stream: {e}", e);
+                    }
+                    finally
+                    {
+                        CurrentStream.Dispose();
+                    }
+                }
+                catch (TaskCanceledException)
+                {
+                    // ignored
+                }
+                catch (Exception e)
+                {
+                    Logger.LogError("An error occured while attaching to container: {e}", e);
+                }
+            }
+
+
+            // Reset stream so no further inputs will be piped to it
+            CurrentStream = null;
+
+            Logger.LogDebug("Disconnected from container stream");
+        }, Cts.Token);
+        
+        return Task.CompletedTask;
     }
 
     public Task WriteToOutput(string content)
@@ -56,9 +154,22 @@ public class DockerConsole : IConsole
 
     public async Task WriteToInput(string content)
     {
-        throw new NotImplementedException();
+        if (CurrentStream == null)
+            return;
+
+        var contentBuffer = Encoding.UTF8.GetBytes(content);
+
+        await CurrentStream.WriteAsync(
+            contentBuffer,
+            0,
+            contentBuffer.Length,
+            Cts.Token
+        );
     }
 
+    public async Task WriteToMoonlight(string content)
+        => await WriteToOutput($"\x1b[0;38;2;255;255;255;48;2;124;28;230m Moonlight \x1b[0m\x1b[38;5;250m\x1b[3m {content}\x1b[0m\n\r");
+
     public Task ClearOutput()
     {
         OutputCache.Clear();

MoonlightServers.Daemon/ServerSys/Implementations/DockerProvisioner.cs

@@ -0,0 +1,246 @@
+using System.Reactive.Subjects;
+using Docker.DotNet;
+using Docker.DotNet.Models;
+using MoonlightServers.Daemon.Mappers;
+using MoonlightServers.Daemon.ServerSys.Abstractions;
+using MoonlightServers.Daemon.Services;
+
+namespace MoonlightServers.Daemon.ServerSys.Implementations;
+
+public class DockerProvisioner : IProvisioner
+{
+    public IAsyncObservable<object> OnExited { get; set; }
+
+    private readonly DockerClient DockerClient;
+    private readonly ILogger<DockerProvisioner> Logger;
+    private readonly DockerEventService EventService;
+    private readonly ServerMeta Meta;
+    private readonly IConsole Console;
+    private readonly DockerImageService ImageService;
+    private readonly ServerConfigurationMapper Mapper;
+    private readonly IFileSystem FileSystem;
+
+    private AsyncSubject<object> OnExitedSubject = new();
+
+    private string? ContainerId;
+    private string ContainerName;
+    private IAsyncDisposable? ContainerEventSubscription;
+
+    public DockerProvisioner(
+        DockerClient dockerClient,
+        ILogger<DockerProvisioner> logger,
+        DockerEventService eventService,
+        ServerMeta meta,
+        IConsole console,
+        DockerImageService imageService,
+        ServerConfigurationMapper mapper,
+        IFileSystem fileSystem
+    )
+    {
+        DockerClient = dockerClient;
+        Logger = logger;
+        EventService = eventService;
+        Meta = meta;
+        Console = console;
+        ImageService = imageService;
+        Mapper = mapper;
+        FileSystem = fileSystem;
+    }
+
+    public async Task Initialize()
+    {
+        ContainerName = $"moonlight-runtime-{Meta.Configuration.Id}";
+
+        ContainerEventSubscription = await EventService
+            .OnContainerEvent
+            .SubscribeAsync(HandleContainerEvent);
+        
+        // Check for any already existing runtime container
+        // TODO: Implement a way for restoring the state
+        // Needs to be able to be consumed by the restorer
+    }
+
+    private ValueTask HandleContainerEvent(Message message)
+    {
+        // Only handle events for our own container
+        if (message.ID != ContainerId)
+            return ValueTask.CompletedTask;
+
+        // Only handle die events
+        if (message.Action != "die")
+            return ValueTask.CompletedTask;
+
+        OnExitedSubject.OnNext(message);
+
+        return ValueTask.CompletedTask;
+    }
+
+    public Task Sync()
+    {
+        return Task.CompletedTask; // TODO: Implement
+    }
+
+    public async Task Provision()
+    {
+        // Plan of action:
+        // 1. Ensure no other container with that name exist
+        // 2. Ensure the docker image has been downloaded
+        // 3. Create the container from the configuration in the meta
+
+        // 1. Ensure no other container with that name exist
+
+        try
+        {
+            Logger.LogDebug("Searching for orphan container");
+
+            var possibleContainer = await DockerClient.Containers.InspectContainerAsync(ContainerName);
+
+            Logger.LogDebug("Orphan container found. Removing it");
+            await Console.WriteToMoonlight("Found orphan container. Removing it");
+
+            await EnsureContainerOffline(possibleContainer);
+
+            Logger.LogInformation("Removing orphan container");
+            await DockerClient.Containers.RemoveContainerAsync(ContainerName, new());
+        }
+        catch (DockerContainerNotFoundException)
+        {
+            // Ignored
+        }
+
+        // 2. Ensure the docker image has been downloaded
+        await Console.WriteToMoonlight("Downloading docker image");
+
+        await ImageService.Download(Meta.Configuration.DockerImage, async message =>
+        {
+            try
+            {
+                await Console.WriteToMoonlight(message);
+            }
+            catch (Exception)
+            {
+                // Ignored. Not handling it here could cause an application wide crash afaik
+            }
+        });
+
+        // 3. Create the container from the configuration in the meta
+        var hostFsPath = FileSystem.GetExternalPath();
+
+        var parameters = Mapper.ToRuntimeParameters(
+            Meta.Configuration,
+            hostFsPath,
+            ContainerName
+        );
+        
+        var createdContainer = await DockerClient.Containers.CreateContainerAsync(parameters);
+        
+        ContainerId = createdContainer.ID;
+        
+        Logger.LogInformation("Created container");
+        await Console.WriteToMoonlight("Created container");
+    }
+
+    public async Task Start()
+    {
+        if(string.IsNullOrEmpty(ContainerId))
+            throw new ArgumentNullException(nameof(ContainerId), "Container id of runtime is unknown");
+        
+        await Console.WriteToMoonlight("Starting container");
+        await DockerClient.Containers.StartContainerAsync(ContainerId, new());
+    }
+
+    public async Task Stop()
+    {
+        if (Meta.Configuration.StopCommand.StartsWith('^'))
+        {
+            await DockerClient.Containers.KillContainerAsync(ContainerId, new()
+            {
+                Signal = Meta.Configuration.StopCommand.Substring(1)
+            });
+        }
+        else
+            await Console.WriteToInput(Meta.Configuration.StopCommand);
+    }
+
+    public async Task Kill()
+    {
+        await EnsureContainerOffline();
+    }
+
+    public async Task Deprovision()
+    {
+        // Plan of action:
+        // 1. Search for the container by id or name
+        // 2. Ensure container is offline
+        // 3. Remove the container
+
+        // 1. Search for the container by id or name
+        ContainerInspectResponse? container = null;
+
+        try
+        {
+            if (string.IsNullOrEmpty(ContainerId))
+                container = await DockerClient.Containers.InspectContainerAsync(ContainerName);
+            else
+                container = await DockerClient.Containers.InspectContainerAsync(ContainerId);
+        }
+        catch (DockerContainerNotFoundException)
+        {
+            // Ignored
+
+            Logger.LogDebug("Runtime container could not be found. Reporting deprovision success");
+        }
+
+        // No container found? We are done here then
+        if (container == null)
+            return;
+
+        // 2. Ensure container is offline
+        await EnsureContainerOffline(container);
+
+        // 3. Remove the container
+        Logger.LogInformation("Removing container");
+        await Console.WriteToMoonlight("Removing container");
+
+        await DockerClient.Containers.RemoveContainerAsync(container.ID, new());
+    }
+
+    private async Task EnsureContainerOffline(ContainerInspectResponse? container = null)
+    {
+        try
+        {
+            if (string.IsNullOrEmpty(ContainerId))
+                container = await DockerClient.Containers.InspectContainerAsync(ContainerName);
+            else
+                container = await DockerClient.Containers.InspectContainerAsync(ContainerId);
+        }
+        catch (DockerContainerNotFoundException)
+        {
+            // Ignored
+        }
+
+        // No container found? We are done here then
+        if (container == null)
+            return;
+
+        // Check if container is running
+        if (!container.State.Running)
+            return;
+
+        await Console.WriteToMoonlight("Killing container");
+        await DockerClient.Containers.KillContainerAsync(ContainerId, new());
+    }
+
+    public Task<ServerCrash?> SearchForCrash()
+    {
+        throw new NotImplementedException();
+    }
+
+    public async ValueTask DisposeAsync()
+    {
+        OnExitedSubject.Dispose();
+
+        if (ContainerEventSubscription != null)
+            await ContainerEventSubscription.DisposeAsync();
+    }
+}

MoonlightServers.Daemon/ServerSys/Implementations/RawFileSystem.cs

@@ -0,0 +1,55 @@
+using MoonlightServers.Daemon.Configuration;
+using MoonlightServers.Daemon.ServerSys.Abstractions;
+
+namespace MoonlightServers.Daemon.ServerSys.Implementations;
+
+public class RawFileSystem : IFileSystem
+{
+    public bool IsMounted { get; private set; }
+    public bool Exists { get; private set; }
+
+    private readonly ServerMeta Meta;
+    private readonly AppConfiguration Configuration;
+    private string HostPath => Path.Combine(Configuration.Storage.Volumes, Meta.Configuration.Id.ToString());
+
+    public RawFileSystem(ServerMeta meta, AppConfiguration configuration)
+    {
+        Meta = meta;
+        Configuration = configuration;
+    }
+
+    public Task Initialize()
+        => Task.CompletedTask;
+
+    public Task Sync()
+        => Task.CompletedTask;
+
+    public Task Create()
+    {
+        return Task.CompletedTask;
+    }
+
+    public Task Mount()
+    {
+        IsMounted = true;
+        return Task.CompletedTask;
+    }
+
+    public Task Unmount()
+    {
+        IsMounted = false;
+        return Task.CompletedTask;
+    }
+
+    public Task Delete()
+    {
+        Directory.Delete(HostPath, true);
+        return Task.CompletedTask;
+    }
+
+    public string GetExternalPath()
+     => HostPath;
+
+    public ValueTask DisposeAsync()
+        => ValueTask.CompletedTask;
+}

MoonlightServers.Daemon/ServerSys/ServerFactory.cs

@@ -0,0 +1,39 @@
+using MoonlightServers.Daemon.Helpers;
+using MoonlightServers.Daemon.Models.Cache;
+using MoonlightServers.Daemon.ServerSys.Abstractions;
+using MoonlightServers.Daemon.ServerSys.Implementations;
+
+namespace MoonlightServers.Daemon.ServerSys;
+
+public class ServerFactory
+{
+    private readonly IServiceProvider ServiceProvider;
+
+    public ServerFactory(IServiceProvider serviceProvider)
+    {
+        ServiceProvider = serviceProvider;
+    }
+
+    public Server CreateServer(ServerConfiguration configuration)
+    {
+        var serverMeta = new ServerMeta();
+        serverMeta.Configuration = configuration;
+
+        // Build service collection
+        serverMeta.ServiceCollection = new ServiceCollection();
+        
+        // Configure service pipeline for the server components
+        serverMeta.ServiceCollection.AddSingleton<IConsole, DockerConsole>();
+        serverMeta.ServiceCollection.AddSingleton<IFileSystem, RawFileSystem>();
+        
+        // TODO: Handle implementation configurations (e.g. virtual disk) here
+
+        // Combine both app service provider and our server instance specific one
+        serverMeta.ServiceProvider = new CompositeServiceProvider([
+            serverMeta.ServiceCollection.BuildServiceProvider(),
+            ServiceProvider
+        ]);
+        
+        return serverMeta.ServiceProvider.GetRequiredService<Server>();
+    }
+}

MoonlightServers.Daemon/Services/DockerEventService.cs

@@ -0,0 +1,81 @@
+using System.Reactive.Linq;
+using System.Reactive.Subjects;
+using Docker.DotNet;
+using Docker.DotNet.Models;
+
+namespace MoonlightServers.Daemon.Services;
+
+public class DockerEventService : BackgroundService
+{
+    private readonly ILogger<DockerEventService> Logger;
+    private readonly DockerClient DockerClient;
+
+    public IAsyncObservable<Message> OnContainerEvent => OnContainerSubject.ToAsyncObservable();
+    public IAsyncObservable<Message> OnImageEvent => OnImageSubject.ToAsyncObservable();
+    public IAsyncObservable<Message> OnNetworkEvent =>  OnNetworkSubject.ToAsyncObservable();
+    
+    private readonly AsyncSubject<Message> OnContainerSubject = new();
+    private readonly AsyncSubject<Message> OnImageSubject = new();
+    private readonly AsyncSubject<Message> OnNetworkSubject = new();
+
+    public DockerEventService(
+        ILogger<DockerEventService> logger,
+        DockerClient dockerClient
+    )
+    {
+        Logger = logger;
+        DockerClient = dockerClient;
+    }
+
+    protected override async Task ExecuteAsync(CancellationToken stoppingToken)
+    {
+        Logger.LogInformation("Starting docker event service");
+        
+        while (!stoppingToken.IsCancellationRequested)
+        {
+            try
+            {
+                await DockerClient.System.MonitorEventsAsync(
+                    new ContainerEventsParameters(),
+                    new Progress<Message>(message =>
+                    {
+                        switch (message.Type)
+                        {
+                            case "container":
+                                OnContainerSubject.OnNext(message);
+                                break;
+
+                            case "image":
+                                OnImageSubject.OnNext(message);
+                                break;
+
+                            case "network":
+                                OnNetworkSubject.OnNext(message);
+                                break;
+                        }
+                    }),
+                    stoppingToken
+                );
+            }
+            catch (TaskCanceledException)
+            {
+                // ignored
+            }
+            catch (Exception e)
+            {
+                Logger.LogError(e, "An error occured while listening for docker events: {message}", e.Message);
+            }
+        }
+        
+        Logger.LogInformation("Stopping docker event service");
+    }
+
+    public override void Dispose()
+    {
+        base.Dispose();
+        
+        OnContainerSubject.Dispose();
+        OnImageSubject.Dispose();
+        OnNetworkSubject.Dispose();
+    }
+}

MoonlightServers.Daemon/Startup.cs

@@ -8,9 +8,12 @@ using MoonCore.EnvConfiguration;
 using MoonCore.Extended.Extensions;
 using MoonCore.Extensions;
 using MoonCore.Helpers;
+using MoonCore.Logging;
 using MoonlightServers.Daemon.Configuration;
 using MoonlightServers.Daemon.Helpers;
 using MoonlightServers.Daemon.Http.Hubs;
+using MoonlightServers.Daemon.Mappers;
+using MoonlightServers.Daemon.ServerSys;
 using MoonlightServers.Daemon.ServerSystem;
 using MoonlightServers.Daemon.Services;
 
@@ -68,8 +71,8 @@ public class Startup
     private Task SetupStorage()
     {
         Directory.CreateDirectory("storage");
-        Directory.CreateDirectory(PathBuilder.Dir("storage", "logs"));
-        Directory.CreateDirectory(PathBuilder.Dir("storage", "plugins"));
+        Directory.CreateDirectory(Path.Combine("storage", "logs"));
+        Directory.CreateDirectory(Path.Combine("storage", "plugins"));
 
         return Task.CompletedTask;
     }
@@ -100,7 +103,7 @@ public class Startup
     private Task UseBase()
     {
         WebApplication.UseRouting();
-        WebApplication.UseApiExceptionHandler();
+        WebApplication.UseExceptionHandler();
 
         return Task.CompletedTask;
     }
@@ -141,7 +144,7 @@ public class Startup
         var configurationBuilder = new ConfigurationBuilder();
 
         // Ensure configuration file exists
-        var jsonFilePath = PathBuilder.File(Directory.GetCurrentDirectory(), "storage", "app.json");
+        var jsonFilePath = Path.Combine(Directory.GetCurrentDirectory(), "storage", "app.json");
 
         if (!File.Exists(jsonFilePath))
             await File.WriteAllTextAsync(jsonFilePath, JsonSerializer.Serialize(new AppConfiguration()));
@@ -187,20 +190,8 @@ public class Startup
 
     private Task SetupLogging()
     {
-        LoggerProviders = LoggerBuildHelper.BuildFromConfiguration(configuration =>
-        {
-            configuration.Console.Enable = true;
-            configuration.Console.EnableAnsiMode = true;
-
-            configuration.FileLogging.Enable = true;
-            configuration.FileLogging.EnableLogRotation = true;
-            configuration.FileLogging.Path = PathBuilder.File("storage", "logs", "WebAppTemplate.log");
-            configuration.FileLogging.RotateLogNameTemplate =
-                PathBuilder.File("storage", "logs", "WebAppTemplate.log.{0}");
-        });
-
         LoggerFactory = new LoggerFactory();
-        LoggerFactory.AddProviders(LoggerProviders);
+        LoggerFactory.AddAnsiConsole();
 
         Logger = LoggerFactory.CreateLogger<Startup>();
 
@@ -211,30 +202,35 @@ public class Startup
     {
         // Configure application logging
         WebApplicationBuilder.Logging.ClearProviders();
-        WebApplicationBuilder.Logging.AddProviders(LoggerProviders);
+        WebApplicationBuilder.Logging.AddAnsiConsole();
+        WebApplicationBuilder.Logging.AddFile(
+            Path.Combine(Directory.GetCurrentDirectory(), "storage", "logs", "MoonlightServer.Daemon.log")
+        );
 
         // Logging levels
-        var logConfigPath = PathBuilder.File("storage", "logConfig.json");
+        var logConfigPath = Path.Combine("storage", "logConfig.json");
 
         // Ensure logging config, add a default one is missing
         if (!File.Exists(logConfigPath))
         {
-            var logLevels = new Dictionary<string, string>
+            var defaultLogLevels = new Dictionary<string, string>
             {
                 { "Default", "Information" },
                 { "Microsoft.AspNetCore", "Warning" },
                 { "System.Net.Http.HttpClient", "Warning" }
             };
 
-            var logLevelsJson = JsonSerializer.Serialize(logLevels);
-            var logConfig = "{\"LogLevel\":" + logLevelsJson + "}";
-            await File.WriteAllTextAsync(logConfigPath, logConfig);
+            var json = JsonSerializer.Serialize(defaultLogLevels);
+            await File.WriteAllTextAsync(logConfigPath, json);
         }
 
-        // Configure logging configuration
-        WebApplicationBuilder.Logging.AddConfiguration(
+        var logLevels = JsonSerializer.Deserialize<Dictionary<string, string>>(
             await File.ReadAllTextAsync(logConfigPath)
-        );
+        )!;
+
+        // Configure logging configuration
+        foreach (var logLevel in logLevels)
+            WebApplicationBuilder.Logging.AddFilter(logLevel.Key, Enum.Parse<LogLevel>(logLevel.Value));
         
         // Mute exception handler middleware
         // https://github.com/dotnet/aspnetcore/issues/19740
@@ -255,10 +251,16 @@ public class Startup
 
     private Task RegisterServers()
     {
-        WebApplicationBuilder.Services.AddHostedService(
-            sp => sp.GetRequiredService<ServerService>()
+        WebApplicationBuilder.Services.AddHostedService(sp => sp.GetRequiredService<ServerService>()
         );
 
+        WebApplicationBuilder.Services.AddSingleton<DockerEventService>();
+        WebApplicationBuilder.Services.AddHostedService(sp => sp.GetRequiredService<DockerEventService>());
+
+        WebApplicationBuilder.Services.AddSingleton<ServerConfigurationMapper>();
+
+        WebApplicationBuilder.Services.AddSingleton<ServerFactory>();
+
         return Task.CompletedTask;
     }