Running multiple applications and ASP.NET core applications with a deployment manifest

{
  "manifestVersion": 1,
  "deployments": {
    "aspNetCoreWeb": [
      {
        "name": "my-dotnet-core-app",
        "parameters": {
          "archive": "dotnet-core-app.zip",
          "iisPath": "/"
        }
      }
    ]
  }
}

.
|-- aws-windows-deployment-manifest.json
`-- dotnet-core-app.zip

.
|-- Microsoft.AspNetCore.Hosting.Abstractions.dll
|-- Microsoft.AspNetCore.Hosting.Server.Abstractions.dll
|-- Microsoft.AspNetCore.Hosting.dll
|-- Microsoft.AspNetCore.Http.Abstractions.dll
|-- Microsoft.AspNetCore.Http.Extensions.dll
|-- Microsoft.AspNetCore.Http.Features.dll
|-- Microsoft.AspNetCore.Http.dll
|-- Microsoft.AspNetCore.HttpOverrides.dll
|-- Microsoft.AspNetCore.Server.IISIntegration.dll
|-- Microsoft.AspNetCore.Server.Kestrel.dll
|-- Microsoft.AspNetCore.WebUtilities.dll
|-- Microsoft.Extensions.Configuration.Abstractions.dll
|-- Microsoft.Extensions.Configuration.EnvironmentVariables.dll
|-- Microsoft.Extensions.Configuration.dll
|-- Microsoft.Extensions.DependencyInjection.Abstractions.dll
|-- Microsoft.Extensions.DependencyInjection.dll
|-- Microsoft.Extensions.FileProviders.Abstractions.dll
|-- Microsoft.Extensions.FileProviders.Physical.dll
|-- Microsoft.Extensions.FileSystemGlobbing.dll
|-- Microsoft.Extensions.Logging.Abstractions.dll
|-- Microsoft.Extensions.Logging.dll
|-- Microsoft.Extensions.ObjectPool.dll
|-- Microsoft.Extensions.Options.dll
|-- Microsoft.Extensions.PlatformAbstractions.dll
|-- Microsoft.Extensions.Primitives.dll
|-- Microsoft.Net.Http.Headers.dll
|-- System.Diagnostics.Contracts.dll
|-- System.Net.WebSockets.dll
|-- System.Text.Encodings.Web.dll
|-- dotnet-core-app.deps.json
|-- dotnet-core-app.dll
|-- dotnet-core-app.pdb
|-- dotnet-core-app.runtimeconfig.json
`-- web.config

{
  "manifestVersion": 1,
  "deployments": {
    "aspNetCoreWeb": [
      {
        "name": "WebAPISample",
        "parameters": {
          "appBundle": "WebApiSampleApp.zip",
          "iisPath": "/api"
        }
      },
      {
        "name": "DotNetSample",
        "parameters": {
          "appBundle": "DotNetSampleApp.zip",
          "iisPath": "/"
        }
      }
    ]
  }
}

{
  "manifestVersion": 1,
  "iisConfig": {
    "websites": [
      {
        "name": "MyCustomSite",
        "physicalPath": "C:\inetpub\wwwroot\mysite",
        "bindings": [
          {
            "protocol": "http",
            "port": 8080,
            "hostName": "mysite.local"
          }
        ]
      }
    ]
  },
  "deployments": {
    "aspNetCoreWeb": [
      {
        "name": "my-dotnet-core-app",
        "parameters": {
          "appBundle": "dotnet-core-app.zip",
          "iisWebSite": "MyCustomSite",
          "iisPath": "/"
        }
      }
    ]
  }
}

{
  "manifestVersion": 1,
  "iisConfig": {
    "websites": [
      {
        "name": "ARRSite",
        "physicalPath": "C:\\inetpub\\wwwroot\\arrsite",
        "bindings": [
          {
            "protocol": "http",
            "port": 8080,
            "hostName": "localhost"
          }
        ]
      }
    ]
  },
  "deployments": {
    "aspNetCoreWeb": [
      {
        "name": "BackendApp",
        "parameters": {
          "appBundle": "backend-app.zip",
          "iisWebSite": "ARRSite",
          "iisPath": "/backend"
        }
      }
    ]
  }
}

files:
  "C:\\temp\\configure-arr.ps1":
    content: |
      # Enable ARR proxy at server level
      Set-WebConfigurationProperty -PSPath 'MACHINE/WEBROOT/APPHOST' -Filter 'system.webServer/proxy' -Name 'enabled' -Value 'True'
      
      # Clear any existing global rules to avoid conflicts
      Clear-WebConfiguration -PSPath 'MACHINE/WEBROOT/APPHOST' -Filter 'system.webServer/rewrite/globalRules'

      # Add global rule to route all requests to backend
      Add-WebConfigurationProperty -PSPath 'MACHINE/WEBROOT/APPHOST' `
        -Filter 'system.webServer/rewrite/globalRules' `
        -Name '.' `
        -Value @{
          name = 'Route_to_Backend'
          stopProcessing = 'True'
          match = @{ url = '^(?!backend/)(.*)' }
          action = @{
            type = 'Rewrite'
            url = 'http://localhost:8080/backend/{R:1}'
          }
        }

container_commands:
  01_configure_arr:
    command: powershell -ExecutionPolicy Bypass -File "C:\\temp\\configure-arr.ps1"
    waitAfterCompletion: 0

<configuration>
<location path="." inheritInChildApplications="false">
<system.webServer>
<handlers>
<add 
    name="aspNetCore" 
    path="*" verb="*" 
    modules="AspNetCoreModuleV2" 
    resourceType="Unspecified" />
</handlers>
<aspNetCore 
    processPath="dotnet" 
    arguments=".\CoreWebApp-5-0.dll" 
    stdoutLogEnabled="false" 
    stdoutLogFile=".\logs\stdout" 
    hostingModel="OutofProcess" />
</system.webServer>
</location>
</configuration>

{
"manifestVersion": 1,
  "deployments": {"msDeploy": [
      {"name": "Web-app1",
        "parameters": {"archive": "site1.zip",
          "iisPath": "/"
        }
      },
      {"name": "Web-app2",
        "parameters": {"archive": "site2.zip",
          "iisPath": "/app2"
        }
      }
    ]
  }
}

{
"manifestVersion": 1,
  "iisConfig": {"appPools": [
      {"name": "MyFirstPool",
       "recycling": {"regularTimeInterval": 10}
      },
      {"name": "MySecondPool",
       "recycling": {"regularTimeInterval": 10}
      }
     ]
    },
  "deployments": {"msDeploy": [
      {"name": "Web-app1",
        "parameters": {
           "archive": "site1.zip",
           "iisPath": "/",
           "appPool": "MyFirstPool"
           }
      },
      {"name": "Web-app2",
        "parameters": {
           "archive": "site2.zip",
           "iisPath": "/app2",
           "appPool": "MySecondPool"
          }
      }
     ]
    }
}

{
  "manifestVersion": 1,
  "deployments": {
    "custom": [
      {
        "name": "Custom site",
        "architecture": 32,
        "scripts": {
          "install": {
            "file": "install.ps1"
          },
          "restart": {
            "file": "restart.ps1"
          },
          "uninstall": {
            "file": "uninstall.ps1",
            "ignoreErrors": true
          }
        }
      }
    ]
  }
}

.
|-- aws-windows-deployment-manifest.json
|-- install.ps1
|-- restart.ps1
|-- uninstall.ps1
`-- MyApp.zip

$ErrorActionPreference = "Stop"
$appPath = "C:\inetpub\MyApp"
if (Test-Path $appPath) { Remove-Item $appPath -Recurse -Force }

# Elastic Beanstalk doesn't extract your bundle for custom deployments, so extract it yourself.
# MyApp.zip ships in the bundle, alongside this script. Resolve it relative to the script's
# own location so the path is reliable regardless of the current working directory.
$scriptDir = if ($PSScriptRoot) { $PSScriptRoot } else { (Get-Location).Path }
$bundleZip = Join-Path $scriptDir "MyApp.zip"
Add-Type -AssemblyName "System.IO.Compression.FileSystem"
[IO.Compression.ZipFile]::ExtractToDirectory($bundleZip, $appPath)

# Serve from the Default Web Site root ("/"), where the health check looks.
Import-Module WebAdministration
Set-ItemProperty "IIS:\Sites\Default Web Site" -Name physicalPath -Value $appPath

iisreset.exe /restart
if ($LASTEXITCODE -ne 0) { exit 1 }

$ErrorActionPreference = "Stop"
iisreset.exe /restart
if ($LASTEXITCODE -ne 0) { exit 1 }

# Stop IIS first. While the site is live, w3wp holds locks on files under the app directory,
# which would make the following removal fail.
iisreset.exe /stop | Out-Null
Remove-Item "C:\inetpub\MyApp" -Recurse -Force -ErrorAction SilentlyContinue

{
  "manifestVersion": 1,
  "deployments": {
    "custom": [
      {
        "name": "EbCustomService",
        "architecture": 64,
        "scripts": {
          "install": {
            "file": "serviceInstall.ps1"
          },
          "restart": {
            "file": "serviceRestart.ps1"
          },
          "uninstall": {
            "file": "serviceUninstall.ps1",
            "ignoreErrors": true
          }
        }
      }
    ]
  }
}

.
|-- aws-windows-deployment-manifest.json
|-- EbCustomService.cs
|-- serviceInstall.ps1
|-- serviceRestart.ps1
|-- serviceUninstall.ps1
`-- version.txt

# INSTALL: compile and register a self-hosted HTTP service that owns port 80.
$ErrorActionPreference = "Stop"

$svcName = "EbCustomService"
$appPath = "C:\CustomService"
$scriptDir = if ($PSScriptRoot) { $PSScriptRoot } else { (Get-Location).Path }

# Free port 80 from IIS and keep it from reclaiming the port on reboot.
Stop-Service W3SVC -Force -ErrorAction SilentlyContinue
Set-Service  W3SVC -StartupType Manual -ErrorAction SilentlyContinue

# Fresh application directory.
if (Test-Path $appPath) { Remove-Item $appPath -Recurse -Force }
New-Item -ItemType Directory -Path $appPath | Out-Null

# Compile the service with the in-box .NET Framework compiler (no build tooling needed).
$csc = Join-Path $env:WINDIR "Microsoft.NET\Framework64\v4.0.30319\csc.exe"
$src = Join-Path $scriptDir "EbCustomService.cs"
$exe = Join-Path $appPath "EbCustomService.exe"
& $csc /nologo /target:exe /out:"$exe" /reference:System.ServiceProcess.dll "$src"
if ($LASTEXITCODE -ne 0) { exit 1 }

# Write the content served at "/". A real service would serve its own responses;
# here the install script writes a simple marker so the health check passes.
$version = (Get-Content (Join-Path $scriptDir "version.txt") -Raw).Trim()
Set-Content -Path (Join-Path $appPath "marker.txt") `
    -Value "Custom service deployment $version succeeded" -NoNewline

# Register as a LocalSystem service so it can bind http://+:80/ without a URL ACL.
if (Get-Service $svcName -ErrorAction SilentlyContinue) {
    Stop-Service $svcName -Force -ErrorAction SilentlyContinue
    sc.exe delete $svcName | Out-Null
    # sc.exe delete is async; poll until gone so New-Service below doesn't hit
    # "service marked for deletion".
    $deadline = (Get-Date).AddSeconds(30)
    while ((Get-Service $svcName -ErrorAction SilentlyContinue) -and (Get-Date) -lt $deadline) {
        Start-Sleep -Milliseconds 500
    }
}
New-Service -Name $svcName -BinaryPathName "`"$exe`"" `
    -DisplayName "EB Custom Service" -StartupType Automatic | Out-Null
Start-Service $svcName

# RESTART: restart the service so the new version becomes live.
$ErrorActionPreference = "Stop"

$svcName = "EbCustomService"

Restart-Service $svcName -Force

# UNINSTALL: stop and remove the previous version before the new install.
# The manifest sets ignoreErrors:true because the first deploy has nothing to remove.
$ErrorActionPreference = "Stop"

$svcName = "EbCustomService"
$appPath = "C:\CustomService"

if (Get-Service $svcName -ErrorAction SilentlyContinue) {
    Stop-Service $svcName -Force -ErrorAction SilentlyContinue
    sc.exe delete $svcName | Out-Null
    # sc.exe delete is async; poll until the service is really gone so the next
    # deploy's New-Service doesn't hit "service marked for deletion".
    $deadline = (Get-Date).AddSeconds(30)
    while ((Get-Service $svcName -ErrorAction SilentlyContinue) -and (Get-Date) -lt $deadline) {
        Start-Sleep -Milliseconds 500
    }
}
if (Test-Path $appPath) {
    Remove-Item $appPath -Recurse -Force -ErrorAction SilentlyContinue
}

// Minimal self-hosted HTTP Windows service. Hosts an HttpListener on http://+:80/
// and answers the load balancer's GET "/" health check with the content that the
// install script wrote to marker.txt.
using System;
using System.IO;
using System.Net;
using System.ServiceProcess;
using System.Text;
using System.Threading;

namespace EbCustomService
{
    public class MarkerService : ServiceBase
    {
        private const string Root = @"C:\CustomService";
        private HttpListener _listener;
        private Thread _worker;
        private volatile bool _running;

        public MarkerService()
        {
            this.ServiceName = "EbCustomService";
        }

        protected override void OnStart(string[] args)
        {
            _running = true;
            _listener = new HttpListener();
            _listener.Prefixes.Add("http://+:80/");
            _listener.Start();
            _worker = new Thread(Loop) { IsBackground = true };
            _worker.Start();
        }

        protected override void OnStop()
        {
            _running = false;
            try { if (_listener != null) _listener.Stop(); } catch { }
        }

        private void Loop()
        {
            while (_running)
            {
                HttpListenerContext ctx;
                try { ctx = _listener.GetContext(); }
                catch { break; }
                try
                {
                    byte[] buf = Encoding.UTF8.GetBytes(ReadFile(Path.Combine(Root, "marker.txt")));
                    ctx.Response.StatusCode = 200;
                    ctx.Response.ContentType = "text/plain";
                    ctx.Response.ContentLength64 = buf.Length;
                    ctx.Response.OutputStream.Write(buf, 0, buf.Length);
                    ctx.Response.OutputStream.Close();
                }
                catch { }
            }
        }

        private static string ReadFile(string p)
        {
            try { return File.Exists(p) ? File.ReadAllText(p) : ""; }
            catch { return ""; }
        }

        public static void Main()
        {
            ServiceBase.Run(new MarkerService());
        }
    }
}