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# Walks AWS Organizations tree (Root -> OUs -> Accounts) and dumps SCP attachments.
# Uses whatever AWS CLI credentials/profile are currently active in your shell.
# Read-only. Run from the management account (or Organizations delegated admin).
[CmdletBinding()]
param(
[string]$OutputDir = "."
)
$ErrorActionPreference = "Stop"
function Invoke-AwsJson {
param([string[]]$CliArgs)
$raw = & aws @CliArgs 2>&1
if ($LASTEXITCODE -ne 0) {
throw "aws $($CliArgs -join ' ') failed:`n$raw"
}
return $raw | ConvertFrom-Json
}
function Get-AttachedScps {
param([string]$TargetId)
$result = Invoke-AwsJson -CliArgs @(
"organizations", "list-policies-for-target",
"--target-id", $TargetId,
"--filter", "SERVICE_CONTROL_POLICY",
"--output", "json"
)
$policies = @($result.Policies | ForEach-Object {
[PSCustomObject]@{
Id = $_.Id
Arn = $_.Arn
Name = $_.Name
Description = $_.Description
AwsManaged = $_.AwsManaged
}
})
return , $policies
}
function Get-OuNode {
param([string]$ParentId, [string]$OuId, [string]$OuName)
Write-Host "Scanning OU: $OuName ($OuId)" -ForegroundColor Cyan
$scps = Get-AttachedScps -TargetId $OuId
$accountsRaw = Invoke-AwsJson -CliArgs @(
"organizations", "list-accounts-for-parent",
"--parent-id", $OuId, "--output", "json"
)
$accounts = @()
foreach ($acct in $accountsRaw.Accounts) {
Write-Host " Scanning Account: $($acct.Name) ($($acct.Id))" -ForegroundColor DarkCyan
$acctScps = Get-AttachedScps -TargetId $acct.Id
$accounts += [PSCustomObject]@{
Id = $acct.Id
Name = $acct.Name
Email = $acct.Email
Status = $acct.Status
AttachedSCPs = $acctScps
SCPCount = @($acctScps).Count
}
}
$childOusRaw = Invoke-AwsJson -CliArgs @(
"organizations", "list-organizational-units-for-parent",
"--parent-id", $OuId, "--output", "json"
)
$childOus = @()
foreach ($childOu in $childOusRaw.OrganizationalUnits) {
$childOus += Get-OuNode -ParentId $OuId -OuId $childOu.Id -OuName $childOu.Name
}
return [PSCustomObject]@{
Id = $OuId
Name = $OuName
ParentId = $ParentId
AttachedSCPs = $scps
SCPCount = @($scps).Count
Accounts = $accounts
ChildOUs = $childOus
}
}
# ---- main ----
Write-Host "`nFetching AWS Organizations root..." -ForegroundColor Yellow
$rootsRaw = Invoke-AwsJson -CliArgs @("organizations", "list-roots", "--output", "json")
$root = $rootsRaw.Roots[0]
Write-Host "Root: $($root.Name) ($($root.Id))" -ForegroundColor Green
$rootScps = Get-AttachedScps -TargetId $root.Id
$rootAccountsRaw = Invoke-AwsJson -CliArgs @(
"organizations", "list-accounts-for-parent",
"--parent-id", $root.Id, "--output", "json"
)
$rootAccounts = @()
foreach ($acct in $rootAccountsRaw.Accounts) {
Write-Host " Scanning Account (direct under root): $($acct.Name) ($($acct.Id))" -ForegroundColor DarkCyan
$acctScps = Get-AttachedScps -TargetId $acct.Id
$rootAccounts += [PSCustomObject]@{
Id = $acct.Id
Name = $acct.Name
Email = $acct.Email
Status = $acct.Status
AttachedSCPs = $acctScps
SCPCount = @($acctScps).Count
}
}
$topLevelOusRaw = Invoke-AwsJson -CliArgs @(
"organizations", "list-organizational-units-for-parent",
"--parent-id", $root.Id, "--output", "json"
)
$childOus = @()
foreach ($ou in $topLevelOusRaw.OrganizationalUnits) {
$childOus += Get-OuNode -ParentId $root.Id -OuId $ou.Id -OuName $ou.Name
}
Write-Host "`nFetching full SCP catalog (attached + unattached)..." -ForegroundColor Yellow
$allScpsRaw = Invoke-AwsJson -CliArgs @(
"organizations", "list-policies",
"--filter", "SERVICE_CONTROL_POLICY", "--output", "json"
)
$allScps = @($allScpsRaw.Policies | ForEach-Object {
[PSCustomObject]@{
Id = $_.Id
Arn = $_.Arn
Name = $_.Name
Description = $_.Description
AwsManaged = $_.AwsManaged
}
})
$tree = [PSCustomObject]@{
GeneratedAtUtc = (Get-Date).ToUniversalTime().ToString("o")
Root = [PSCustomObject]@{
Id = $root.Id
Name = $root.Name
AttachedSCPs = $rootScps
SCPCount = @($rootScps).Count
Accounts = $rootAccounts
ChildOUs = $childOus
}
AllOrgScps = $allScps
AllOrgScpCount = @($allScps).Count
}
$timestamp = Get-Date -Format "yyyyMMdd-HHmmss"
if (-not (Test-Path $OutputDir)) { New-Item -ItemType Directory -Path $OutputDir | Out-Null }
$jsonPath = Join-Path $OutputDir "org-structure-$timestamp.json"
$tree | ConvertTo-Json -Depth 20 | Out-File -FilePath $jsonPath -Encoding utf8
Write-Host "`nJSON written to: $jsonPath" -ForegroundColor Green
$txtPath = Join-Path $OutputDir "org-structure-$timestamp.txt"
$lines = [System.Collections.Generic.List[string]]::new()
function Add-OuLines {
param($Node, [int]$Indent)
$pad = " " * $Indent
$lines.Add("$pad OU: $($Node.Name) [$($Node.Id)] -- SCPs attached: $($Node.SCPCount)/10")
foreach ($scp in $Node.AttachedSCPs) {
$tag = if ($scp.AwsManaged) { "AWS-managed" } else { "custom" }
$lines.Add("$pad - $($scp.Name) [$($scp.Id)] ($tag)")
}
foreach ($acct in $Node.Accounts) {
$lines.Add("$pad Account: $($acct.Name) [$($acct.Id)] ($($acct.Status)) -- SCPs attached: $($acct.SCPCount)/10")
foreach ($scp in $acct.AttachedSCPs) {
$tag = if ($scp.AwsManaged) { "AWS-managed" } else { "custom" }
$lines.Add("$pad - $($scp.Name) [$($scp.Id)] ($tag)")
}
}
foreach ($child in $Node.ChildOUs) {
Add-OuLines -Node $child -Indent ($Indent + 1)
}
}
$lines.Add("AWS Organization Structure & SCP Attachments")
$lines.Add("Generated: $($tree.GeneratedAtUtc)")
$lines.Add("=" * 60)
$lines.Add("")
$lines.Add("ROOT: $($tree.Root.Name) [$($tree.Root.Id)] -- SCPs attached: $($tree.Root.SCPCount)/10")
foreach ($scp in $tree.Root.AttachedSCPs) {
$tag = if ($scp.AwsManaged) { "AWS-managed" } else { "custom" }
$lines.Add(" - $($scp.Name) [$($scp.Id)] ($tag)")
}
foreach ($acct in $tree.Root.Accounts) {
$lines.Add(" Account (direct under root): $($acct.Name) [$($acct.Id)] ($($acct.Status)) -- SCPs attached: $($acct.SCPCount)/10")
foreach ($scp in $acct.AttachedSCPs) {
$tag = if ($scp.AwsManaged) { "AWS-managed" } else { "custom" }
$lines.Add(" - $($scp.Name) [$($scp.Id)] ($tag)")
}
}
$lines.Add("")
foreach ($ou in $tree.Root.ChildOUs) {
Add-OuLines -Node $ou -Indent 1
$lines.Add("")
}
$lines.Add("=" * 60)
$lines.Add("ALL SCPs IN ORG (attached or not): $($tree.AllOrgScpCount)")
foreach ($scp in $tree.AllOrgScps) {
$tag = if ($scp.AwsManaged) { "AWS-managed" } else { "custom" }
$lines.Add(" - $($scp.Name) [$($scp.Id)] ($tag) :: $($scp.Description)")
}
$lines | Out-File -FilePath $txtPath -Encoding utf8
Write-Host "Text tree written to: $txtPath" -ForegroundColor Green
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