hack: dockerfiles: start off a nanoserver plus image

the official mcr.microsoft.com/windows/nanoserver:ltsc2022 image
does not ship with some binaries so as to reduce the image size.
Some of those are needed for testing, etc.

We are therefore creating a custom nanoserver aka nanoserver-plus
image that ships with these binaries, and more others as needed

Signed-off-by: Anthony Nandaa <profnandaa@gmail.com>

Author: profnandaa

hacks/.gitignore

@@ -1 +1,2 @@
 private/
+bin/

hacks/scripts/dockerfiles/nanoserver_plus/dockerfile

@@ -0,0 +1,12 @@
+FROM mcr.microsoft.com/windows/nanoserver:ltsc2022
+
+# this is a minimal image based on nanoserver
+# mainly for the purpose of testing, e.g. integration
+# tests on moby/buildkit.
+
+# before building the image, run ./get_binaries.ps1
+# from the host. This dumps all the required binaries
+# in the ./bin directory that is later moved to
+# C:\Windows\system32 to be accessed within %PATH%
+
+COPY ./bin/* /Windows/System32/

hacks/scripts/dockerfiles/nanoserver_plus/get_binaries.ps1

@@ -0,0 +1,18 @@
+
+# files to copy from Windows host.
+# this are mainly legacy files that don't have any
+# extra dependencies.
+$filePaths = @(
+    "C:\Windows\System32\fc.exe",
+    "C:\Windows\System32\whoami.exe"
+)
+
+$dest = "./bin"
+
+if (-not (Test-Path -Path $dest)) {
+    New-Item -ItemType Directory -Path $dest
+}
+
+foreach ($filePath in $filePaths) {
+    Copy-Item -Path $filePath -Destination $dest
+}