From 523f959ad326157cfac07a04f91a925402450d6c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Luk=C3=A1=C5=A1=20Kucharczyk?= <lukas@kucharczyk.xyz>
Date: Fri, 29 Dec 2023 11:25:20 +0100
Subject: [PATCH] GetContainerLayerContents: add

---
 GetContainerLayerContents.ps1 | 51 +++++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100644 GetContainerLayerContents.ps1

diff --git a/GetContainerLayerContents.ps1 b/GetContainerLayerContents.ps1
new file mode 100644
index 0000000..dbf0458
--- /dev/null
+++ b/GetContainerLayerContents.ps1
@@ -0,0 +1,51 @@
+param(
+    [Parameter(Mandatory=$true)]
+    [string]$imageName
+)
+
+# Save the Docker image as a tarball
+$imageTar = "$imageName.tar"
+docker save -o $imageTar $imageName
+
+# Create a temporary directory to extract layers
+$tempDir = [System.IO.Path]::GetTempPath() + [System.Guid]::NewGuid().ToString()
+New-Item -ItemType Directory -Force -Path $tempDir
+
+# Extract the image tarball using 'tar' command
+tar -xf $imageTar -C $tempDir
+
+# Function to list files in a layer
+function ListLayerFiles {
+    param (
+        [string]$layerPath
+    )
+
+    $layerTar = Get-ChildItem -Path $layerPath -Filter "*.tar" -File
+    $layerDir = [System.IO.Path]::Combine($tempDir, [System.IO.Path]::GetRandomFileName())
+    New-Item -ItemType Directory -Force -Path $layerDir
+
+    # Extract the layer tarball using 'tar'
+    tar -xf $layerTar.FullName -C $layerDir
+
+    # List files in the layer
+    Write-Host "Files in layer:"
+    Get-ChildItem -Path $layerDir -Recurse
+}
+
+# List all layers and ask user to choose one
+$layerDirs = Get-ChildItem -Path $tempDir -Directory
+$layerDirs | ForEach-Object -Begin { $i = 0 } -Process { 
+    Write-Host "[$i]: $($_.Name)"
+    $i++
+}
+
+$userChoice = Read-Host "Enter the index of the layer to list"
+if ($userChoice -lt $layerDirs.Count -and $userChoice -ge 0) {
+    ListLayerFiles -layerPath $layerDirs[$userChoice].FullName
+} else {
+    Write-Host "Invalid index selected."
+}
+
+# Cleanup
+Remove-Item -Path $imageTar
+Remove-Item -Path $tempDir -Recurse