build.xml

<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">

  <PropertyGroup>
    <StageDir>$(teamcity_build_checkoutDir)\Stage</StageDir>
  </PropertyGroup>
  
  <Target Name="Build">

    <Message Text="Hello World" Importance="high" />
    <Message Text="teamcity_build_checkoutDir = $(teamcity_build_checkoutDir)" Importance="high" />
    <MSBuild Projects="$(teamcity_build_checkoutDir)\DockerDemoApp.sln" Properties="Configuration=Release" />

    <RemoveDir Condition="Exists($(StageDir))" Directories="$(StageDir)" />
    <MakeDir Directories="$(StageDir)" />

    <ItemGroup>
      <StageFiles Include="$(teamcity_build_checkoutDir)\DockerDemoApp\**\*.cshtml" />
      <StageFiles Include="$(teamcity_build_checkoutDir)\DockerDemoApp\**\*.css" />
      <StageFiles Include="$(teamcity_build_checkoutDir)\DockerDemoApp\**\*.dll" />
      <StageFiles Include="$(teamcity_build_checkoutDir)\DockerDemoApp\**\*.js" />
      <StageFiles Include="$(teamcity_build_checkoutDir)\DockerDemoApp\**\*.config" />
      <StageFiles Include="$(teamcity_build_checkoutDir)\DockerDemoApp\**\*.html" />
      <StageFiles Include="$(teamcity_build_checkoutDir)\DockerDemoApp\**\*.map" />
      <StageFiles Include="$(teamcity_build_checkoutDir)\DockerDemoApp\**\*.eot" />
      <StageFiles Include="$(teamcity_build_checkoutDir)\DockerDemoApp\**\*.svg" />
      <StageFiles Include="$(teamcity_build_checkoutDir)\DockerDemoApp\**\*.ttf" />
      <StageFiles Include="$(teamcity_build_checkoutDir)\DockerDemoApp\**\*.woff" />
      <StageFiles Include="$(teamcity_build_checkoutDir)\DockerDemoApp\**\*.asax" />
      <StageFiles Include="$(teamcity_build_checkoutDir)\DockerFile" />

    </ItemGroup>

    <Copy SourceFiles="@(StageFiles)" DestinationFolder="$(StageDir)\%(RecursiveDir)\" />
    
  </Target>
  
  <Target Name="DockerBuild">
    <PropertyGroup>
      <dockerExe>C:\Windows\SysWOW64\docker.exe</dockerExe>
    </PropertyGroup>
    
    <Exec Command="$(dockerExe) images" />
    <Exec Command="$(dockerExe) build -t dockerdemoapp:0.$(build_number) --pull=false $(StageDir)" />
  </Target>
</Project>