create kestrel server for serving static files

util/Server/.dockerignore

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+*
+!obj/Docker/publish/*
+!obj/Docker/empty/

util/Server/Dockerfile

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+FROM microsoft/aspnetcore:2.0
+COPY obj/Docker/publish /bitwarden_server

util/Server/Program.cs

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+using Microsoft.AspNetCore.Hosting;
+
+namespace Server
+{
+    public class Program
+    {
+        public static void Main(string[] args)
+        {
+            var builder = new WebHostBuilder()
+                .UseKestrel()
+                .UseStartup<Startup>();
+
+            if(args.Length > 0)
+            {
+                builder.UseContentRoot(args[0]);
+            }
+
+            if(args.Length > 1)
+            {
+                builder.UseWebRoot(args[1]);
+            }
+
+            var host = builder.Build();
+            host.Run();
+        }
+    }
+}

util/Server/Properties/launchSettings.json

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+{
+  "profiles": {
+    "Server": {
+      "commandName": "Project",
+      "launchBrowser": true,
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      },
+      "applicationUrl": "http://localhost:53910/"
+    }
+  }
+}

util/Server/Server.csproj

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+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>netcoreapp2.0</TargetFramework>
+    <MvcRazorCompileOnPublish>false</MvcRazorCompileOnPublish>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.AspNetCore.All" Version="2.0.0" />
+  </ItemGroup>
+
+</Project>

util/Server/Startup.cs

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+using Microsoft.AspNetCore.Builder;
+using Microsoft.Extensions.DependencyInjection;
+
+namespace Server
+{
+    public class Startup
+    {
+        public void ConfigureServices(IServiceCollection services)
+        { }
+
+        public void Configure(IApplicationBuilder app)
+        {
+            app.UseFileServer();
+        }
+    }
+}

util/Server/build.ps1

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+$dir = Split-Path -Parent $MyInvocation.MyCommand.Path
+
+echo "`n# Building Server"
+
+echo "`nBuilding app"
+echo ".NET Core version $(dotnet --version)"
+dotnet publish $dir\Server.csproj -c "Release" -o $dir\obj\Docker\publish
+
+echo "`nBuilding docker image"
+docker --version
+docker build -t bitwarden/server $dir\.

util/Server/build.sh

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+#!/usr/bin/env bash
+set -e
+
+DIR="$(dirname $(readlink -f $0))"
+
+echo -e "\n# Building Server"
+
+echo -e "\nBuilding app"
+echo -e ".NET Core version $(dotnet --version)"
+dotnet publish $DIR/Server.csproj -c "Release" -o $DIR/obj/Docker/publish
+
+echo -e "\nBuilding docker image"
+docker --version
+docker build -t bitwarden/server $DIR/.