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Lab 19: Compare service endpoints and private endpoints

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This self-contained lab uses Azure CLI commands hosted in PowerShell. Complete the guided lane or the automated lane—not both with the same run ID.

Scenario, role, and outcome

Scenario: You are a network administrator comparing storage service and private endpoints. Build and prove this disposable service path: The storage account denies public access while a blob private endpoint receives an IP from the private subnet; its zone group writes records into the linked private DNS zone so VNet clients resolve the private service path.

Learner role: A network administrator comparing Storage service and private endpoints.

Outcome: Use Azure CLI in PowerShell to create a locked-down storage service and endpoint subnet, create the blob private endpoint and dns zone group, and reconcile endpoint approval, dns records, and network policy, with recoverable state and deterministic cleanup.

Item Value
Duration 120 minutes
Difficulty applied
Cost class moderate
Command surface Azure CLI (az, az rest, Bicep, AzCopy, or KQL where required) hosted in PowerShell
Live state Not executed during this offline rebuild

Completion criteria:

  • All required checkpoints report pass.
  • The deterministic break/fix is injected, diagnosed, and repaired.
  • cleanup.json reports no active run-owned resources, with any retained item explicitly documented.
LAB-19 five-checkpoint roadmap: Compare service endpoints and private endpoints
Five learning checkpoints in task order. These arrows show the exercise sequence; see the architecture figure for service connections. Open at full size.

Objectives and checkpoints

Objective Skill Checkpoints
ST-ACCESS-01 Configure Azure Storage firewalls and virtual networks LAB19-CP01, LAB19-CP05
CP-APP-07 Configure networking settings for an App Service LAB19-CP02, LAB19-CP05
NW-SECURE-04 Configure service endpoints for Azure platform as a service (PaaS) LAB19-CP03, LAB19-CP05
NW-SECURE-05 Configure private endpoints for Azure PaaS LAB19-CP04, LAB19-CP05

The authoritative objective wording comes from the Microsoft AZ-104 study guide, skills measured as of 2026-04-17.

Architecture and service topology

LAB-19: Compare service endpoints and private endpoints; service topology and connections
Compare service endpoints and private endpoints — topology for this lab. Open at full size.

The editable source is architecture.mmd. The storage account denies public access while a blob private endpoint receives an IP from the private subnet; its zone group writes records into the linked private DNS zone so VNet clients resolve the private service path.

Concept primer and design decisions

A service endpoint authorizes a subnet to the public service endpoint. A private endpoint creates a NIC with a private IP. Private DNS must map the normal service name to that private IP for clients inside linked VNets.

Design decisions:

  • Use separate subnets for comparison.
  • Default-deny the storage firewall before adding network authorization.
  • Use a DNS zone group to keep endpoint records synchronized.

Required and optional inputs

Input Required Source Safe example Gate behavior
run-id — Unique lowercase run ownership identifier Yes parameter az104l19-01 block
subscription-id — Expected disposable subscription ID Yes parameter-or-environment (AZ104_SUBSCRIPTION_ID) 00000000-0000-0000-0000-000000000000 block
location — Approved primary Azure region Yes parameter-or-environment (AZ104_LOCATION) westeurope block

Secrets stay in temporary environment variables and are never written to run.json, validation evidence, or Git. A skip-checkpoint gate produces a visible partial result; it never becomes a pass.

Read-only preflight

Readiness, preview, explicit execution, and result validation
Follow the read-only checks and execution gates defined by this lab. A failed required gate blocks progress. Open at full size.

Sign in deliberately, inspect the active context, then run the lab preflight. It never signs in, changes context, installs an extension, registers a provider, or creates a resource.

az login
az account show --query '{cloud:environmentName,subscription:id,tenant:tenantId,user:user.name}' --output json
./scripts/cli/Preflight.ps1 -SubscriptionId $env:AZ104_SUBSCRIPTION_ID -RunId 'az104l19-01' -Location 'westeurope'

Representative redacted output:

context                 True  cloud=AzureCloud; tenant=<redacted>; subscription=<redacted>
azure-cli               True  2.88.x
provider:<namespace>    True  Registered
region                  True  westeurope
Preflight passed. It performed no Azure mutation.

If a required row fails, stop. Correct the local tool, context, provider, quota, SKU, region, permission, or input outside the lab, then rerun preflight.

Task 1 — Verify private-link and private-DNS regional support

Checkpoint: LAB19-CP01

Purpose and operational relevance: Read the provider, region, SKU, feature, quota, and companion-tool signals needed for verify private-link and private-dns regional support, without changing Azure state. The change is unsafe when a wrong group ID or unsupported service subresource leaves a private-endpoint connection rejected. This checkpoint therefore proves: The storage private-link resource exposes the blob group ID and the selected region accepts private endpoints.

Run these commands from PowerShell. If you already used the automated lane, choose a new run ID before trying this guided lane.

az provider show --namespace Microsoft.Network --query registrationState --output tsv
az provider show --namespace Microsoft.Storage --query registrationState --output tsv

Expected state: The storage private-link resource exposes the blob group ID and the selected region accepts private endpoints.

Representative redacted output:

The storage private-link resource exposes the blob group ID and the selected region accepts private endpoints.

Positive validation:

$network = az provider show --namespace Microsoft.Network --query registrationState --output tsv
if ($network -ne 'Registered') { throw 'Microsoft.Network is not registered.' }

Expected positive result: The storage private-link resource exposes the blob group ID and the selected region accepts private endpoints.

Negative validation:

$storageProvider = az provider show --namespace Microsoft.Storage --query registrationState --output tsv
if ($storageProvider -ne 'Registered') { throw 'Microsoft.Storage is not registered.' }

Expected negative result: LAB19-CP01 negative boundary: The undesired state is absent; the negative assertion must not report: Microsoft.Storage is not registered.

Evidence to retain:

  • LAB19-CP01 UTC result for verify private-link and private-dns regional support.
  • Exact run-owned resource/object ID returned by the commands in LAB19-CP01.
  • Positive assertion proving: The storage private-link resource exposes the blob group ID and the selected region accepts private endpoints.
  • Negative assertion proving absence of: Microsoft.Storage is not registered.

Common failure and safe retry: A wrong group ID or unsupported service subresource leaves a private-endpoint connection rejected. Retry LAB19-CP01 for verify private-link and private-dns regional support only after its exact recorded ID and current property are read. If the ID exists, reissue only the idempotent update; if it is absent, repeat only the owning create command, then rerun both assertions.

Cleanup dependency: After LAB19-CP02, LAB19-CP03, LAB19-CP04, LAB19-CP05, remove the exact manifest IDs created or configured by LAB19-CP01 for verify private-link and private-dns regional support; its residual probe must then return zero active IDs.

Task 2 — Create a locked-down storage service and endpoint subnet

Checkpoint: LAB19-CP02

Purpose and operational relevance: Provision and immediately inventory the exact run-owned resources needed to create a locked-down storage service and endpoint subnet, so partial completion remains recoverable. The change is unsafe when disabling public access before private DNS is ready can make all data-plane tests appear broken. This checkpoint therefore proves: The storage account denies public network access and the endpoint subnet has private-endpoint policies configured for the design.

Run these commands from PowerShell. If you already used the automated lane, choose a new run ID before trying this guided lane.

$vnet = "vnet-$suffix"; $storage = "st19$suffix"; $endpoint = "pe-$suffix"; $zone = "privatelink.blob.core.windows.net"
az network vnet create --resource-group $ResourceGroupName --name $vnet --address-prefixes 10.19.0.0/16 --subnet-name service --subnet-prefixes 10.19.1.0/24 --output none
az network vnet subnet update --resource-group $ResourceGroupName --vnet-name $vnet --name service --service-endpoints Microsoft.Storage --output none
az network vnet subnet create --resource-group $ResourceGroupName --vnet-name $vnet --name private --address-prefixes 10.19.2.0/24 --disable-private-endpoint-network-policies true --output none
az storage account create --resource-group $ResourceGroupName --name $storage --location $Location --sku Standard_LRS --kind StorageV2 --https-only true --allow-blob-public-access false --output none
$serviceSubnetId = az network vnet subnet show --resource-group $ResourceGroupName --vnet-name $vnet --name service --query id --output tsv
az storage account network-rule add --resource-group $ResourceGroupName --account-name $storage --subnet $serviceSubnetId --output none
az storage account update --resource-group $ResourceGroupName --name $storage --default-action Deny --output none
$storageId = az storage account show --resource-group $ResourceGroupName --name $storage --query id --output tsv
az network private-endpoint create --resource-group $ResourceGroupName --name $endpoint --location $Location --vnet-name $vnet --subnet private --private-connection-resource-id $storageId --group-id blob --connection-name "conn-$suffix" --output none
az network private-dns zone create --resource-group $ResourceGroupName --name $zone --output none
az network private-dns link vnet create --resource-group $ResourceGroupName --zone-name $zone --name "link-$suffix" --virtual-network $vnet --registration-enabled false --output none

Expected state: The storage account denies public network access and the endpoint subnet has private-endpoint policies configured for the design.

Representative redacted output:

The storage account denies public network access and the endpoint subnet has private-endpoint policies configured for the design.

Positive validation:

$serviceEndpoint = az network vnet subnet show --resource-group $ResourceGroupName --vnet-name $vnet --name service --query "serviceEndpoints[?service=='Microsoft.Storage'] | length(@)" --output tsv
if ([int]$serviceEndpoint -ne 1) { throw 'The Storage service endpoint is absent.' }

Expected positive result: The storage account denies public network access and the endpoint subnet has private-endpoint policies configured for the design.

Negative validation:

$defaultAction = az storage account show --resource-group $ResourceGroupName --name $storage --query networkRuleSet.defaultAction --output tsv
if ($defaultAction -ne 'Deny') { throw "Storage default network action is $defaultAction." }

Expected negative result: LAB19-CP02 negative boundary: The undesired state is absent; the negative assertion must not report: Storage default network action is reported defaultAction.

Evidence to retain:

  • LAB19-CP02 UTC result for create a locked-down storage service and endpoint subnet.
  • Exact run-owned resource/object ID returned by the commands in LAB19-CP02.
  • Positive assertion proving: The storage account denies public network access and the endpoint subnet has private-endpoint policies configured for the design.
  • Negative assertion proving absence of: Storage default network action is reported defaultAction.

Common failure and safe retry: Disabling public access before private DNS is ready can make all data-plane tests appear broken. Retry LAB19-CP02 for create a locked-down storage service and endpoint subnet only after its exact recorded ID and current property are read. If the ID exists, reissue only the idempotent update; if it is absent, repeat only the owning create command, then rerun both assertions.

Cleanup dependency: After LAB19-CP03, LAB19-CP04, LAB19-CP05, remove the exact manifest IDs created or configured by LAB19-CP02 for create a locked-down storage service and endpoint subnet; its residual probe must then return zero active IDs.

Task 3 — Create the blob private endpoint and DNS zone group

Checkpoint: LAB19-CP03

Purpose and operational relevance: Configure and independently inspect the control-plane and data-path properties needed to create the blob private endpoint and dns zone group. The change is unsafe when a missing VNet link or zone-group association creates a private IP without working name resolution. This checkpoint therefore proves: The private endpoint connection is Approved and its zone group links privatelink.blob.core.windows.net to the VNet.

Run these commands from PowerShell. If you already used the automated lane, choose a new run ID before trying this guided lane.

az network private-endpoint dns-zone-group create --resource-group $ResourceGroupName --endpoint-name $endpoint --name default --private-dns-zone $zone --zone-name blob --output none

Expected state: The private endpoint connection is Approved and its zone group links privatelink.blob.core.windows.net to the VNet.

Representative redacted output:

The private endpoint connection is Approved and its zone group links privatelink.blob.core.windows.net to the VNet.

Positive validation:

$connection = az network private-endpoint show --resource-group $ResourceGroupName --name $endpoint --query "privateLinkServiceConnections[0].privateLinkServiceConnectionState.status" --output tsv
if ($connection -ne 'Approved') { throw "Private endpoint connection is $connection." }

Expected positive result: The private endpoint connection is Approved and its zone group links privatelink.blob.core.windows.net to the VNet.

Negative validation:

$policies = az network vnet subnet show --resource-group $ResourceGroupName --vnet-name $vnet --name private --query privateEndpointNetworkPolicies --output tsv
if ($policies -notin @('Disabled','NetworkSecurityGroupEnabled','RouteTableEnabled')) { throw "Unexpected private endpoint policy state: $policies" }

Expected negative result: LAB19-CP03 negative boundary: The undesired state is absent; the negative assertion must not report: Unexpected private endpoint policy state: reported policies.

Evidence to retain:

  • LAB19-CP03 UTC result for create the blob private endpoint and dns zone group.
  • Exact run-owned resource/object ID returned by the commands in LAB19-CP03.
  • Positive assertion proving: The private endpoint connection is Approved and its zone group links privatelink.blob.core.windows.net to the VNet.
  • Negative assertion proving absence of: Unexpected private endpoint policy state: reported policies.

Common failure and safe retry: A missing VNet link or zone-group association creates a private IP without working name resolution. Retry LAB19-CP03 for create the blob private endpoint and dns zone group only after its exact recorded ID and current property are read. If the ID exists, reissue only the idempotent update; if it is absent, repeat only the owning create command, then rerun both assertions.

Cleanup dependency: After LAB19-CP04, LAB19-CP05, remove the exact manifest IDs created or configured by LAB19-CP03 for create the blob private endpoint and dns zone group; its residual probe must then return zero active IDs.

Task 4 — Prove private DNS integration and public denial

Checkpoint: LAB19-CP04

Purpose and operational relevance: Exercise the deterministic operational or denied path needed to prove private dns integration and public denial, then retain comparable before-and-after results. The change is unsafe when testing DNS only from the administrator workstation does not prove resolution inside the linked VNet. This checkpoint therefore proves: The endpoint NIC owns a private address, private DNS records reference it, and the public-network property remains Disabled.

Run these commands from PowerShell. If you already used the automated lane, choose a new run ID before trying this guided lane.

az network private-endpoint dns-zone-group list --resource-group $ResourceGroupName --endpoint-name $endpoint --output json
az network private-dns record-set a list --resource-group $ResourceGroupName --zone-name $zone --output table

Expected state: The endpoint NIC owns a private address, private DNS records reference it, and the public-network property remains Disabled.

Representative redacted output:

The endpoint NIC owns a private address, private DNS records reference it, and the public-network property remains Disabled.

Positive validation:

$zoneGroups = az network private-endpoint dns-zone-group list --resource-group $ResourceGroupName --endpoint-name $endpoint --query "length(@)" --output tsv
if ([int]$zoneGroups -ne 1) { throw "Expected one DNS zone group; found $zoneGroups." }

Expected positive result: The endpoint NIC owns a private address, private DNS records reference it, and the public-network property remains Disabled.

Negative validation:

$links = az network private-dns link vnet list --resource-group $ResourceGroupName --zone-name $zone --query "[?virtualNetwork.id!=null] | length(@)" --output tsv
if ([int]$links -ne 1) { throw "Expected one VNet link; found $links." }

Expected negative result: LAB19-CP04 negative boundary: The undesired state is absent; the negative assertion must not report: Expected one VNet link; found reported links.

Evidence to retain:

  • LAB19-CP04 UTC result for prove private dns integration and public denial.
  • Exact run-owned resource/object ID returned by the commands in LAB19-CP04.
  • Positive assertion proving: The endpoint NIC owns a private address, private DNS records reference it, and the public-network property remains Disabled.
  • Negative assertion proving absence of: Expected one VNet link; found reported links.

Common failure and safe retry: Testing DNS only from the administrator workstation does not prove resolution inside the linked VNet. Retry LAB19-CP04 for prove private dns integration and public denial only after its exact recorded ID and current property are read. If the ID exists, reissue only the idempotent update; if it is absent, repeat only the owning create command, then rerun both assertions.

Cleanup dependency: After LAB19-CP05, remove the exact manifest IDs created or configured by LAB19-CP04 for prove private dns integration and public denial; its residual probe must then return zero active IDs.

Task 5 — Reconcile endpoint approval, DNS records, and network policy

Checkpoint: LAB19-CP05

Purpose and operational relevance: Reconcile live service properties, returned IDs, and dependency-aware removal needed to reconcile endpoint approval, dns records, and network policy before handoff. The change is unsafe when an Approved connection alone can conceal a missing DNS record that sends clients to the public endpoint. This checkpoint therefore proves: Connection status, endpoint IP, zone link, record set, and storage publicNetworkAccess jointly prove the private service path.

Run these commands from PowerShell. If you already used the automated lane, choose a new run ID before trying this guided lane.

az network private-endpoint show --resource-group $ResourceGroupName --name $endpoint --query "{state:provisioningState,connection:privateLinkServiceConnections[0].privateLinkServiceConnectionState.status,nic:networkInterfaces[0].id}" --output json

Expected state: Connection status, endpoint IP, zone link, record set, and storage publicNetworkAccess jointly prove the private service path.

Representative redacted output:

Connection status, endpoint IP, zone link, record set, and storage publicNetworkAccess jointly prove the private service path.

Positive validation:

$records = az network private-dns record-set a list --resource-group $ResourceGroupName --zone-name $zone --query "length(@)" --output tsv
if ([int]$records -lt 1) { throw 'The private DNS A record is absent.' }

Expected positive result: Connection status, endpoint IP, zone link, record set, and storage publicNetworkAccess jointly prove the private service path.

Negative validation:

$publicAccess = az storage account show --resource-group $ResourceGroupName --name $storage --query publicNetworkAccess --output tsv
if ($publicAccess -eq 'Disabled') { return }
$defaultAction = az storage account show --resource-group $ResourceGroupName --name $storage --query networkRuleSet.defaultAction --output tsv
if ($defaultAction -ne 'Deny') { throw 'The storage public network boundary is permissive.' }

Expected negative result: LAB19-CP05 negative boundary: The undesired state is absent; the negative assertion must not report: The storage public network boundary is permissive.

Evidence to retain:

  • LAB19-CP05 UTC result for reconcile endpoint approval, dns records, and network policy.
  • Exact run-owned resource/object ID returned by the commands in LAB19-CP05.
  • Positive assertion proving: Connection status, endpoint IP, zone link, record set, and storage publicNetworkAccess jointly prove the private service path.
  • Negative assertion proving absence of: The storage public network boundary is permissive.

Common failure and safe retry: An Approved connection alone can conceal a missing DNS record that sends clients to the public endpoint. Retry LAB19-CP05 for reconcile endpoint approval, dns records, and network policy only after its exact recorded ID and current property are read. If the ID exists, reissue only the idempotent update; if it is absent, repeat only the owning create command, then rerun both assertions.

Cleanup dependency: After all service validation and evidence capture, remove the exact manifest IDs created or configured by LAB19-CP05 for reconcile endpoint approval, dns records, and network policy; its residual probe must then return zero active IDs.

Final validation and result interpretation

Run independent deployment validation after all required checkpoints:

./scripts/cli/Validate.ps1 -RunId 'az104l19-01' -Mode Deployment
az resource list --resource-group 'rg-az104-l19-az104l19-01' --query '[].{name:name,type:type}' --output table
  • pass: every required positive and negative check passed.
  • partial: every required check passed, but at least one optional gate was deliberately skipped.
  • fail: a required checkpoint failed; do not record the lab as complete.

Keep the redacted validation.json; do not retain credentials, tokens, access keys, certificate material, email addresses, tenant IDs, or unredacted command output.

Deterministic break/fix exercise

Injection: Remove the private DNS VNet link while leaving the endpoint connected.

Inject the bounded fault:

az network private-dns link vnet delete --resource-group $ResourceGroupName --zone-name $zone --name "link-$suffix" --yes

Capture the failed state with a read-only query:

az network private-endpoint dns-zone-group list --resource-group $ResourceGroupName --endpoint-name $endpoint --output table
az network private-dns link vnet list --resource-group $ResourceGroupName --zone-name $zone --output table

Repair only the injected setting, then repeat the same query:

az network private-dns link vnet create --resource-group $ResourceGroupName --zone-name $zone --name "link-$suffix" --virtual-network $vnet --registration-enabled false --output none
az network private-dns link vnet show --resource-group $ResourceGroupName --zone-name $zone --name "link-$suffix" --query virtualNetworkLinkState --output tsv

Expected symptom: Clients resolve the public address and private-path validation fails.

Diagnose with a read-only service query:

az network private-endpoint dns-zone-group list --resource-group $ResourceGroupName --endpoint-name $endpoint --output table
az network private-dns link vnet list --resource-group $ResourceGroupName --zone-name $zone --output table

Diagnosis: Inspect the zone group, A record, link, and client DNS result.

Repair: Restore the recorded VNet link and verify private resolution.

Before/after evidence must show the failed negative or positive check before repair and the same check passing afterward. Do not inject a second fault until the first is removed.

Optional job-style challenge

Recommend service endpoint or private endpoint for three security and cost scenarios.

Deliver a short change record containing assumptions, exact commands, redacted evidence, cost and risk notes, rollback, and residual results. The challenge is optional and never changes required checkpoint status.

Troubleshooting

Evidence-led troubleshooting from observation to revalidation
Use read-only evidence to identify the cause, make a targeted repair, and rerun the relevant validation. Open at full size.
Symptom Likely cause Safe next step
Context mismatch Active CLI context differs from run.json Stop, inspect az account show, and select the intended disposable context yourself.
Provider or feature unavailable Registration, region, feature, or SKU gate is unmet Read the preflight result; do not register or enable tenant features implicitly.
Name already exists The run ID is reused or a globally unique name collided Keep existing state intact and choose a new run ID.
Expected state is delayed The service is converging asynchronously Repeat only the read-only query with bounded retries; do not duplicate creation.
Permission denied Role, Graph scope, or data-plane authorization is insufficient Confirm the declared least-privilege boundary; do not broaden access automatically.
Cleanup refuses ownership ID, context, or tags differ from the manifest Investigate the mismatch; never bypass ownership verification.

Cleanup and residual verification

Run-owned cleanup boundary and residual-resource audit
Only verified run-owned objects are eligible for cleanup. Report deliberately retained or soft-deleted items; do not assume they were purged. Open at full size.

Preview exact targets first, execute only after ownership review, then validate post-cleanup:

./scripts/cli/Cleanup.ps1 -RunId 'az104l19-01'
./scripts/cli/Cleanup.ps1 -RunId 'az104l19-01' -Execute
./scripts/cli/Validate.ps1 -RunId 'az104l19-01' -Mode PostCleanup
$publicAccess = az storage account show --resource-group $ResourceGroupName --name $storage --query publicNetworkAccess --output tsv
if ($publicAccess -eq 'Disabled') { return }
$defaultAction = az storage account show --resource-group $ResourceGroupName --name $storage --query networkRuleSet.defaultAction --output tsv
if ($defaultAction -ne 'Deny') { throw 'The storage public network boundary is permissive.' }

cleanup.json passes only when no active manifest-managed object remains. Soft-deleted or intentionally retained items must be listed with their reason and expected disposition. The lifecycle never performs irreversible purge automatically.

Exam debrief and assessment

Explain why the expected state, negative check, and cleanup boundary matter—not only which command was used. Map any missed concept back to its task anchor before reviewing the answer key.

Complete QUESTIONS.md, then use ANSWERS.md for option-by-option remediation. Scores of 85–100% indicate mastery, 70–84% indicate targeted review, and below 70% means repeat the mapped tasks.

Microsoft Learn sources

Lifecycle script appendix

The guided task blocks above and these executable scripts are generated from the same checkpoint data. The scripts are an optional automated lane; use a different run ID if you already completed the guided lane.

Preflight.ps1

# BEGIN GENERATED AZ104 V2
#requires -Version 7.4
[CmdletBinding()]
[Diagnostics.CodeAnalysis.SuppressMessageAttribute('PSAvoidUsingWriteHost', '', Justification = 'Interactive lab progress is intentionally written to the host.')]
[Diagnostics.CodeAnalysis.SuppressMessageAttribute('PSReviewUnusedParameter', '', Justification = 'All lifecycle scripts expose a stable cross-lab interface.')]
[Diagnostics.CodeAnalysis.SuppressMessageAttribute('PSUseDeclaredVarsMoreThanAssignments', '', Justification = 'Generated task variables are intentionally shared across checkpoint blocks.')]
param(
    [string]$SubscriptionId = $env:AZ104_SUBSCRIPTION_ID,
    [Parameter(Mandatory)][ValidatePattern('^[a-z0-9](?:[a-z0-9-]{0,30}[a-z0-9])?$')][string]$RunId,
    [Parameter(Mandatory)][ValidatePattern('^[a-z0-9]+$')][string]$Location,
    [string]$SecondaryLocation = $env:AZ104_SECONDARY_LOCATION
)

Set-StrictMode -Version Latest
$ErrorActionPreference = 'Stop'
$PSNativeCommandUseErrorActionPreference = $true

if (-not (Get-Command az -ErrorAction SilentlyContinue)) {
    throw 'Azure CLI is required. Run the repository readiness initializer, then retry.'
}

$account = az account show --output json | ConvertFrom-Json
if (-not $account) { throw 'No active Azure CLI context. Run az login deliberately before this lab.' }
if ($SubscriptionId -and [string]$account.id -ne $SubscriptionId) {
    throw "Context mismatch: active subscription is $($account.id), expected $SubscriptionId. Preflight will not switch it."
}
if (-not $SubscriptionId) { $SubscriptionId = [string]$account.id }
# The account read above is the mandatory context gate. All remaining Azure
# probes are collected as results instead of allowing one unavailable SKU or
# provider query to abort the readiness report before it can explain the gap.
$PSNativeCommandUseErrorActionPreference = $false
$suffix = (($RunId -replace '[^a-z0-9]', '') + '000000000000').Substring(0, 12)
$ResourceGroupName = $(if ('19' -in @('00', '01', '02')) { $null } else { "rg-az104-l19-$RunId" })

$checks = [System.Collections.Generic.List[object]]::new()
function Add-PreflightResult {
    param([string]$Id, [bool]$Required, [bool]$Passed, [string]$Actual)
    $checks.Add([pscustomobject]@{ id = $Id; required = $Required; passed = $Passed; actual = $Actual })
}

Add-PreflightResult -Id 'context' -Required $true -Passed $true -Actual "cloud=$($account.environmentName); tenant=<redacted>; subscription=<redacted>"
$azVersion = (az version --query '"azure-cli"' --output tsv)
$bicepVersion = (az bicep version 2>&1 | Out-String).Trim()
Add-PreflightResult -Id 'azure-cli' -Required $true -Passed ([bool]$azVersion) -Actual $azVersion
Add-PreflightResult -Id 'powershell' -Required $true -Passed ($PSVersionTable.PSVersion -ge [version]'7.4') -Actual $PSVersionTable.PSVersion.ToString()
Add-PreflightResult -Id 'bicep' -Required $true -Passed ([bool]$bicepVersion) -Actual $bicepVersion

$requiredEnvironmentVariables = @()
foreach ($variableName in $requiredEnvironmentVariables) {
    $present = -not [string]::IsNullOrWhiteSpace([Environment]::GetEnvironmentVariable($variableName))
    Add-PreflightResult -Id "input:$variableName" -Required $true -Passed $present -Actual $(if ($present) { 'present (value redacted)' } else { 'missing' })
}

$providers = @(
    'Microsoft.Network'
    'Microsoft.Storage'
)
foreach ($provider in $providers) {
    $registrationState = az provider show --namespace $provider --query registrationState --output tsv 2>$null
    Add-PreflightResult -Id "provider:$provider" -Required $true -Passed ($registrationState -eq 'Registered') -Actual $(if ($registrationState) { $registrationState } else { 'Unavailable' })
}

$knownLocation = az account list-locations --query "[?name=='$Location'].name | [0]" --output tsv
Add-PreflightResult -Id 'region' -Required $true -Passed ($knownLocation -eq $Location) -Actual $(if ($knownLocation) { $knownLocation } else { 'not available' })

$probePassed = $true
$probeActual = 'assertion passed (output not persisted)'
try {
    $LASTEXITCODE = 0
    & {
$network = az provider show --namespace Microsoft.Network --query registrationState --output tsv
if ($network -ne 'Registered') { throw 'Microsoft.Network is not registered.' }
$storageProvider = az provider show --namespace Microsoft.Storage --query registrationState --output tsv
if ($storageProvider -ne 'Registered') { throw 'Microsoft.Storage is not registered.' }
    } | Out-Null
    if ($LASTEXITCODE -ne 0) { throw "native exit code $LASTEXITCODE" }
} catch {
    $probePassed = $false
    $probeActual = "assertion failed: $($_.Exception.GetType().Name)"
}
Add-PreflightResult -Id 'preflight.authored.service' -Required $true -Passed $probePassed -Actual $probeActual

$checks | Format-Table -AutoSize
$failedRequired = @($checks | Where-Object { $_.required -and -not $_.passed })
if ($failedRequired.Count -gt 0) {
    throw "Preflight blocked: $($failedRequired.id -join ', ')"
}
Write-Host 'Preflight passed. It performed no sign-in, context switch, provider registration, or Azure mutation.'
# END GENERATED AZ104 V2

Setup.ps1

# BEGIN GENERATED AZ104 V2
#requires -Version 7.4
[CmdletBinding()]
[Diagnostics.CodeAnalysis.SuppressMessageAttribute('PSAvoidUsingWriteHost', '', Justification = 'Interactive lab progress is intentionally written to the host.')]
[Diagnostics.CodeAnalysis.SuppressMessageAttribute('PSReviewUnusedParameter', '', Justification = 'All lifecycle scripts expose a stable cross-lab interface.')]
[Diagnostics.CodeAnalysis.SuppressMessageAttribute('PSUseDeclaredVarsMoreThanAssignments', '', Justification = 'Generated task variables are intentionally shared across checkpoint blocks.')]
param(
    [string]$SubscriptionId = $env:AZ104_SUBSCRIPTION_ID,
    [Parameter(Mandatory)][ValidatePattern('^[a-z0-9](?:[a-z0-9-]{0,30}[a-z0-9])?$')][string]$RunId,
    [Parameter(Mandatory)][ValidatePattern('^[a-z0-9]+$')][string]$Location,
    [string]$SecondaryLocation = $env:AZ104_SECONDARY_LOCATION,
    [switch]$AcknowledgeCost,
    [switch]$AcknowledgeTenantChange,
    [switch]$Execute
)

Set-StrictMode -Version Latest
$ErrorActionPreference = 'Stop'
$PSNativeCommandUseErrorActionPreference = $true

if (-not (Get-Command az -ErrorAction SilentlyContinue)) {
    throw 'Azure CLI is required. Run the repository readiness initializer, then retry.'
}

$LabRoot = (Resolve-Path (Join-Path $PSScriptRoot '../..')).Path
$StateDir = Join-Path $LabRoot ".state/$RunId"
$Manifest = Join-Path $StateDir 'run.json'
$ResourceGroupName = $(if ('19' -in @('00', '01', '02')) { $null } else { "rg-az104-l19-$RunId" })
$suffix = (($RunId -replace '[^a-z0-9]', '') + '000000000000').Substring(0, 12)

Write-Host 'LAB-19 execution plan'
Write-Host "  subscription: $SubscriptionId"
Write-Host "  location: $Location"
Write-Host '  command surface: Azure CLI hosted in PowerShell'
Write-Host '  state: run.json, validation.json, cleanup.json'
if (-not $Execute) {
    Write-Host 'Preview only. Review context, inputs, cost, tenant scope, and cleanup before using -Execute.'
    return
}
if ($true -and -not $AcknowledgeCost) { throw 'This lab requires -AcknowledgeCost before execution.' }
if ($false -and -not $AcknowledgeTenantChange) { throw 'This lab requires -AcknowledgeTenantChange before execution.' }

& (Join-Path $PSScriptRoot 'Preflight.ps1') -SubscriptionId $SubscriptionId -RunId $RunId -Location $Location -SecondaryLocation $SecondaryLocation
if (Test-Path -LiteralPath $Manifest) { throw "State already exists at $Manifest. Choose a new run ID." }
New-Item -ItemType Directory -Path $StateDir -Force | Out-Null
$account = az account show --output json | ConvertFrom-Json
if (-not $SubscriptionId) { $SubscriptionId = [string]$account.id }
$now = (Get-Date).ToUniversalTime().ToString('o')
$state = @{
    schemaVersion = '1.0.0'
    labId = 'LAB-19'
    runId = $RunId
    createdAt = $now
    updatedAt = $now
    status = 'initialized'
    context = @{ cloud = [string]$account.environmentName; tenantId = [string]$account.tenantId; subscriptionId = [string]$SubscriptionId }
    acknowledgements = @{ cost = [bool]$AcknowledgeCost; tenantChange = [bool]$AcknowledgeTenantChange }
    inputs = @{ 'location' = $Location; 'secondary-location' = $SecondaryLocation }
    checkpointStates = @(
        @{ checkpointId = 'LAB19-CP01'; required = $true; status = 'pending'; updatedAt = $now; message = 'Not started.' }
        @{ checkpointId = 'LAB19-CP02'; required = $true; status = 'pending'; updatedAt = $now; message = 'Not started.' }
        @{ checkpointId = 'LAB19-CP03'; required = $true; status = 'pending'; updatedAt = $now; message = 'Not started.' }
        @{ checkpointId = 'LAB19-CP04'; required = $true; status = 'pending'; updatedAt = $now; message = 'Not started.' }
        @{ checkpointId = 'LAB19-CP05'; required = $true; status = 'pending'; updatedAt = $now; message = 'Not started.' }
    )
    managedObjects = @()
    originalSettings = @()
}
$external = @{}

function Save-RunState {
    $state.updatedAt = (Get-Date).ToUniversalTime().ToString('o')
    $state | ConvertTo-Json -Depth 30 | Set-Content -LiteralPath $Manifest -Encoding utf8
}

function Save-ExternalState {
    foreach ($key in @($external.Keys)) {
        $value = $external[$key]
        if ($null -eq $value -or $value -is [string] -or $value -is [ValueType]) {
            $inputKey = 'external-' + (([string]$key -creplace '([a-z0-9])([A-Z])', '$1-$2') -replace '[^a-zA-Z0-9-]', '-').ToLowerInvariant()
            $state.inputs[$inputKey] = $value
        }
    }
    Save-RunState
}

function Write-CheckpointState {
    param([string]$CheckpointId, [string]$Status, [string]$Message)
    $entry = @($state.checkpointStates | Where-Object { $_.checkpointId -eq $CheckpointId })[0]
    $entry.status = $Status
    $entry.updatedAt = (Get-Date).ToUniversalTime().ToString('o')
    $entry.message = $Message
}

function Add-ManagedObject {
    param([string]$CheckpointId, [string]$Kind, [string]$Id, [string]$Name, [string]$Type, [string]$Scope, [string]$OwnershipMethod)
    if ([string]::IsNullOrWhiteSpace($Id)) { return }
    $existing = @($state.managedObjects | Where-Object { $_.id -eq $Id })
    if ($existing.Count -gt 0) { return }
    $expectedTags = @{}
    if ($OwnershipMethod -eq 'manifest-id-and-tags') {
        $expectedTags = @{ purpose = 'az104-lab'; labId = '19'; runId = $RunId }
    }
    $state.managedObjects += @{
        checkpointId = $CheckpointId
        kind = $Kind
        id = $Id
        name = $Name
        type = $Type
        scope = $Scope
        ownership = @{ method = $OwnershipMethod; expectedTags = $expectedTags }
        recordedAt = (Get-Date).ToUniversalTime().ToString('o')
        lifecycleStatus = 'active'
    }
    Save-RunState
}

function Sync-ManagedResource {
    param([string]$CheckpointId)
    # The entire recovery inventory is best effort so a state-helper or Azure
    # query failure cannot mask the original mutation error. Every object that
    # can be recovered is still persisted immediately as it is discovered.
    $nativePreference = $PSNativeCommandUseErrorActionPreference
    $PSNativeCommandUseErrorActionPreference = $false
    try {
        Save-ExternalState
        $resourceGroupNames = [System.Collections.Generic.HashSet[string]]::new([System.StringComparer]::OrdinalIgnoreCase)
        if ($ResourceGroupName) { $null = $resourceGroupNames.Add([string]$ResourceGroupName) }
        foreach ($key in @($external.Keys | Where-Object { [string]$_ -match '(?i)ResourceGroupName$' })) {
            if ($external[$key]) { $null = $resourceGroupNames.Add([string]$external[$key]) }
        }
        foreach ($groupName in $resourceGroupNames) {
            $groupJson = az group show --subscription $SubscriptionId --name $groupName --output json 2>$null
            $group = $(if ($LASTEXITCODE -eq 0 -and $groupJson) { $groupJson | ConvertFrom-Json } else { $null })
            if ($group) {
                $groupCheckpoint = $(if ([string]$group.name -eq [string]$ResourceGroupName) { 'LAB19-CP01' } else { $CheckpointId })
                Add-ManagedObject -CheckpointId $groupCheckpoint -Kind 'azure-resource' -Id ([string]$group.id) -Name ([string]$group.name) -Type 'Microsoft.Resources/resourceGroups' -Scope "/subscriptions/$SubscriptionId" -OwnershipMethod 'manifest-id-and-tags'
                $resourcesJson = az resource list --subscription $SubscriptionId --resource-group $groupName --output json 2>$null
                $resources = @($(if ($LASTEXITCODE -eq 0 -and $resourcesJson) { $resourcesJson | ConvertFrom-Json } else { @() }))
                foreach ($resource in $resources) {
                    Add-ManagedObject -CheckpointId $CheckpointId -Kind 'azure-resource' -Id ([string]$resource.id) -Name ([string]$resource.name) -Type ([string]$resource.type) -Scope ([string]$group.id) -OwnershipMethod 'manifest-id-and-tags'
                }
            }
        }
        if ($external.ContainsKey('groupId') -and $external.groupId) { Add-ManagedObject -CheckpointId $CheckpointId -Kind 'entra-object' -Id ([string]$external.groupId) -Name 'lab-group' -Type 'Microsoft.Graph/group' -Scope $state.context.tenantId -OwnershipMethod 'manifest-id' }
        if ($external.ContainsKey('guestUserId') -and $external.guestUserId) { Add-ManagedObject -CheckpointId $CheckpointId -Kind 'entra-object' -Id ([string]$external.guestUserId) -Name 'guest-user' -Type 'Microsoft.Graph/user' -Scope $state.context.tenantId -OwnershipMethod 'manifest-id' }
        if ($external.ContainsKey('userIds')) {
            foreach ($userId in @($external.userIds)) { Add-ManagedObject -CheckpointId $CheckpointId -Kind 'entra-object' -Id ([string]$userId) -Name 'lab-user' -Type 'Microsoft.Graph/user' -Scope $state.context.tenantId -OwnershipMethod 'manifest-id' }
        }
        if ($external.ContainsKey('delegationRecordId') -and $external.delegationRecordId) {
            Add-ManagedObject -CheckpointId $CheckpointId -Kind 'azure-resource' -Id ([string]$external.delegationRecordId) -Name ([string]$external.delegationRecordName) -Type 'Microsoft.Network/dnsZones/NS' -Scope ([string]$external.parentZoneId) -OwnershipMethod 'manifest-id'
        }
        if ($external.ContainsKey('connectionMonitorId') -and $external.connectionMonitorId) {
            Add-ManagedObject -CheckpointId $CheckpointId -Kind 'azure-resource' -Id ([string]$external.connectionMonitorId) -Name ([string]$external.connectionMonitorName) -Type 'Microsoft.Network/networkWatchers/connectionMonitors' -Scope ([string]$external.networkWatcherId) -OwnershipMethod 'manifest-id'
        }
    } catch {
        Write-Warning "Recovery inventory for $CheckpointId was incomplete: $($_.Exception.Message)"
    } finally {
        $PSNativeCommandUseErrorActionPreference = $nativePreference
    }
}

# The manifest exists before the first Azure mutation.
Save-RunState
$state.status = 'setup-in-progress'
Save-RunState

$expiresOn = (Get-Date).ToUniversalTime().AddDays(1).ToString('yyyy-MM-dd')
try {
    az group create --subscription $SubscriptionId --name $ResourceGroupName --location $Location --tags purpose=az104-lab labId=19 runId=$RunId expiresOn=$expiresOn --output none
} catch {
    Write-CheckpointState -CheckpointId 'LAB19-CP01' -Status 'fail' -Message "Resource-group boundary creation failed: $($_.Exception.GetType().Name)"
    $state.status = 'failed'
    Save-RunState
    throw
} finally {
    Sync-ManagedResource -CheckpointId 'LAB19-CP01'
}

# CHECKPOINT LAB19-CP01 BEGIN
try {
    Write-CheckpointState -CheckpointId 'LAB19-CP01' -Status 'in-progress' -Message 'Checkpoint execution started.'
    $activeCheckpointId = 'LAB19-CP01'
    Save-RunState

    az provider show --namespace Microsoft.Network --query registrationState --output tsv
    az provider show --namespace Microsoft.Storage --query registrationState --output tsv

    Sync-ManagedResource -CheckpointId 'LAB19-CP01'
    Write-CheckpointState -CheckpointId 'LAB19-CP01' -Status 'pass' -Message 'The storage private-link resource exposes the blob group ID and the selected region accepts private endpoints.'
    Save-RunState
} catch {
    Sync-ManagedResource -CheckpointId 'LAB19-CP01'
    Write-CheckpointState -CheckpointId 'LAB19-CP01' -Status 'fail' -Message "Checkpoint failed: $($_.Exception.GetType().Name)"
    $state.status = 'failed'
    Save-RunState
    throw
}
# CHECKPOINT LAB19-CP01 END

# CHECKPOINT LAB19-CP02 BEGIN
try {
    Write-CheckpointState -CheckpointId 'LAB19-CP02' -Status 'in-progress' -Message 'Checkpoint execution started.'
    $activeCheckpointId = 'LAB19-CP02'
    Save-RunState

    $vnet = "vnet-$suffix"; $storage = "st19$suffix"; $endpoint = "pe-$suffix"; $zone = "privatelink.blob.core.windows.net"
    try {
        az network vnet create --resource-group $ResourceGroupName --name $vnet --address-prefixes 10.19.0.0/16 --subnet-name service --subnet-prefixes 10.19.1.0/24 --output none
    } finally {
        Sync-ManagedResource -CheckpointId 'LAB19-CP02'
    }
    az network vnet subnet update --resource-group $ResourceGroupName --vnet-name $vnet --name service --service-endpoints Microsoft.Storage --output none
    try {
        az network vnet subnet create --resource-group $ResourceGroupName --vnet-name $vnet --name private --address-prefixes 10.19.2.0/24 --disable-private-endpoint-network-policies true --output none
    } finally {
        Sync-ManagedResource -CheckpointId 'LAB19-CP02'
    }
    try {
        az storage account create --resource-group $ResourceGroupName --name $storage --location $Location --sku Standard_LRS --kind StorageV2 --https-only true --allow-blob-public-access false --output none
    } finally {
        Sync-ManagedResource -CheckpointId 'LAB19-CP02'
    }
    $serviceSubnetId = az network vnet subnet show --resource-group $ResourceGroupName --vnet-name $vnet --name service --query id --output tsv
    az storage account network-rule add --resource-group $ResourceGroupName --account-name $storage --subnet $serviceSubnetId --output none
    az storage account update --resource-group $ResourceGroupName --name $storage --default-action Deny --output none
    $storageId = az storage account show --resource-group $ResourceGroupName --name $storage --query id --output tsv
    try {
        az network private-endpoint create --resource-group $ResourceGroupName --name $endpoint --location $Location --vnet-name $vnet --subnet private --private-connection-resource-id $storageId --group-id blob --connection-name "conn-$suffix" --output none
    } finally {
        Sync-ManagedResource -CheckpointId 'LAB19-CP02'
    }
    try {
        az network private-dns zone create --resource-group $ResourceGroupName --name $zone --output none
    } finally {
        Sync-ManagedResource -CheckpointId 'LAB19-CP02'
    }
    try {
        az network private-dns link vnet create --resource-group $ResourceGroupName --zone-name $zone --name "link-$suffix" --virtual-network $vnet --registration-enabled false --output none
    } finally {
        Sync-ManagedResource -CheckpointId 'LAB19-CP02'
    }

    Sync-ManagedResource -CheckpointId 'LAB19-CP02'
    Write-CheckpointState -CheckpointId 'LAB19-CP02' -Status 'pass' -Message 'The storage account denies public network access and the endpoint subnet has private-endpoint policies configured for the design.'
    Save-RunState
} catch {
    Sync-ManagedResource -CheckpointId 'LAB19-CP02'
    Write-CheckpointState -CheckpointId 'LAB19-CP02' -Status 'fail' -Message "Checkpoint failed: $($_.Exception.GetType().Name)"
    $state.status = 'failed'
    Save-RunState
    throw
}
# CHECKPOINT LAB19-CP02 END

# CHECKPOINT LAB19-CP03 BEGIN
try {
    Write-CheckpointState -CheckpointId 'LAB19-CP03' -Status 'in-progress' -Message 'Checkpoint execution started.'
    $activeCheckpointId = 'LAB19-CP03'
    Save-RunState

    try {
        az network private-endpoint dns-zone-group create --resource-group $ResourceGroupName --endpoint-name $endpoint --name default --private-dns-zone $zone --zone-name blob --output none
    } finally {
        Sync-ManagedResource -CheckpointId 'LAB19-CP03'
    }

    Sync-ManagedResource -CheckpointId 'LAB19-CP03'
    Write-CheckpointState -CheckpointId 'LAB19-CP03' -Status 'pass' -Message 'The private endpoint connection is Approved and its zone group links privatelink.blob.core.windows.net to the VNet.'
    Save-RunState
} catch {
    Sync-ManagedResource -CheckpointId 'LAB19-CP03'
    Write-CheckpointState -CheckpointId 'LAB19-CP03' -Status 'fail' -Message "Checkpoint failed: $($_.Exception.GetType().Name)"
    $state.status = 'failed'
    Save-RunState
    throw
}
# CHECKPOINT LAB19-CP03 END

# CHECKPOINT LAB19-CP04 BEGIN
try {
    Write-CheckpointState -CheckpointId 'LAB19-CP04' -Status 'in-progress' -Message 'Checkpoint execution started.'
    $activeCheckpointId = 'LAB19-CP04'
    Save-RunState

    az network private-endpoint dns-zone-group list --resource-group $ResourceGroupName --endpoint-name $endpoint --output json
    az network private-dns record-set a list --resource-group $ResourceGroupName --zone-name $zone --output table

    Sync-ManagedResource -CheckpointId 'LAB19-CP04'
    Write-CheckpointState -CheckpointId 'LAB19-CP04' -Status 'pass' -Message 'The endpoint NIC owns a private address, private DNS records reference it, and the public-network property remains Disabled.'
    Save-RunState
} catch {
    Sync-ManagedResource -CheckpointId 'LAB19-CP04'
    Write-CheckpointState -CheckpointId 'LAB19-CP04' -Status 'fail' -Message "Checkpoint failed: $($_.Exception.GetType().Name)"
    $state.status = 'failed'
    Save-RunState
    throw
}
# CHECKPOINT LAB19-CP04 END

# CHECKPOINT LAB19-CP05 BEGIN
try {
    Write-CheckpointState -CheckpointId 'LAB19-CP05' -Status 'in-progress' -Message 'Checkpoint execution started.'
    $activeCheckpointId = 'LAB19-CP05'
    Save-RunState

    az network private-endpoint show --resource-group $ResourceGroupName --name $endpoint --query "{state:provisioningState,connection:privateLinkServiceConnections[0].privateLinkServiceConnectionState.status,nic:networkInterfaces[0].id}" --output json

    Sync-ManagedResource -CheckpointId 'LAB19-CP05'
    Write-CheckpointState -CheckpointId 'LAB19-CP05' -Status 'pass' -Message 'Connection status, endpoint IP, zone link, record set, and storage publicNetworkAccess jointly prove the private service path.'
    Save-RunState
} catch {
    Sync-ManagedResource -CheckpointId 'LAB19-CP05'
    Write-CheckpointState -CheckpointId 'LAB19-CP05' -Status 'fail' -Message "Checkpoint failed: $($_.Exception.GetType().Name)"
    $state.status = 'failed'
    Save-RunState
    throw
}
# CHECKPOINT LAB19-CP05 END

$skippedRequired = @($state.checkpointStates | Where-Object { $_.required -and $_.status -eq 'skipped' })
if ($skippedRequired.Count -gt 0) {
    $state.status = 'failed'
    Save-RunState
    throw "Required checkpoints were skipped: $($skippedRequired.checkpointId -join ', ')"
}
$skippedOptional = @($state.checkpointStates | Where-Object { -not $_.required -and $_.status -eq 'skipped' })
$state.status = $(if ($skippedOptional.Count -gt 0) { 'partial' } else { 'setup-complete' })
Save-RunState
Write-Host "Setup result: $($state.status). State: $Manifest"
Write-Host "Next: ./Validate.ps1 -RunId $RunId -Mode Deployment"
# END GENERATED AZ104 V2

Validate.ps1

# BEGIN GENERATED AZ104 V2
#requires -Version 7.4
[CmdletBinding()]
[Diagnostics.CodeAnalysis.SuppressMessageAttribute('PSAvoidUsingWriteHost', '', Justification = 'Interactive lab progress is intentionally written to the host.')]
[Diagnostics.CodeAnalysis.SuppressMessageAttribute('PSReviewUnusedParameter', '', Justification = 'All lifecycle scripts expose a stable cross-lab interface.')]
[Diagnostics.CodeAnalysis.SuppressMessageAttribute('PSUseDeclaredVarsMoreThanAssignments', '', Justification = 'Generated task variables are intentionally shared across checkpoint blocks.')]
param(
    [string]$SubscriptionId = $env:AZ104_SUBSCRIPTION_ID,
    [Parameter(Mandatory)][ValidatePattern('^[a-z0-9](?:[a-z0-9-]{0,30}[a-z0-9])?$')][string]$RunId,
    [ValidateSet('Deployment', 'PostCleanup')][string]$Mode = 'Deployment'
)

Set-StrictMode -Version Latest
$ErrorActionPreference = 'Stop'
$PSNativeCommandUseErrorActionPreference = $true

if (-not (Get-Command az -ErrorAction SilentlyContinue)) {
    throw 'Azure CLI is required. Run the repository readiness initializer, then retry.'
}

$LabRoot = (Resolve-Path (Join-Path $PSScriptRoot '../..')).Path
$StateDir = Join-Path $LabRoot ".state/$RunId"
$Manifest = Join-Path $StateDir 'run.json'
$ValidationPath = Join-Path $StateDir 'validation.json'
if (-not (Test-Path -LiteralPath $Manifest)) { throw "Run manifest not found: $Manifest" }
$state = Get-Content -LiteralPath $Manifest -Raw | ConvertFrom-Json -AsHashtable
if ($state.labId -ne 'LAB-19' -or $state.runId -ne $RunId) { throw 'Manifest ownership does not match this lab and run ID.' }
$PSNativeCommandUseErrorActionPreference = $false
$accountJson = az account show --output json 2>$null
$account = $(if ($LASTEXITCODE -eq 0 -and $accountJson) { $accountJson | ConvertFrom-Json } else { $null })
if (-not $account -or [string]$account.tenantId -ne [string]$state.context.tenantId -or [string]$account.id -ne [string]$state.context.subscriptionId) {
    $capturedAt = (Get-Date).ToUniversalTime().ToString('o')
    $actualContext = $(if ($account) { "tenant=$($account.tenantId); subscription=$($account.id)" } else { 'active context unavailable' })
    $contextFailure = @{
        schemaVersion = '1.0.0'; labId = 'LAB-19'; runId = $RunId; mode = $Mode
        generatedAt = $capturedAt; result = 'fail'
        summary = @{ required = 1; passed = 0; failed = 1; skipped = 0 }
        checks = @(@{ id = 'context.active'; checkpointId = 'LAB19-CP01'; kind = 'context'; required = $true; status = 'fail'; message = 'Active Azure context does not match the run manifest.'; evidence = @{ command = 'az account show --output json'; expected = 'tenant and subscription exactly match run.json'; actual = $actualContext; capturedAt = $capturedAt; redacted = $true } })
    }
    $contextFailure | ConvertTo-Json -Depth 30 | Set-Content -LiteralPath $ValidationPath -Encoding utf8
    Write-Host "Validation $Mode result: fail"
    Write-Host "Artifact: $ValidationPath"
    exit 1
}
$SubscriptionId = [string]$state.context.subscriptionId
$Location = [string]$state.inputs['location']
$SecondaryLocation = [string]$state.inputs['secondary-location']
$ResourceGroupName = $(if ('19' -in @('00', '01', '02')) { $null } else { "rg-az104-l19-$RunId" })
$suffix = (($RunId -replace '[^a-z0-9]', '') + '000000000000').Substring(0, 12)
$vnet = "vnet-$suffix"; $storage = "st19$suffix"; $endpoint = "pe-$suffix"; $zone = "privatelink.blob.core.windows.net"

$checks = [System.Collections.Generic.List[object]]::new()
function Add-ValidationCheck {
    param([string]$Id, [string]$CheckpointId, [string]$Kind, [bool]$Required, [bool]$Passed, [string]$Command, [string]$Expected, [string]$Actual, [bool]$Skipped = $false)
    $capturedAt = (Get-Date).ToUniversalTime().ToString('o')
    $checks.Add(@{
        id = $Id
        checkpointId = $CheckpointId
        kind = $Kind
        required = $Required
        status = $(if ($Skipped) { 'skipped' } elseif ($Passed) { 'pass' } else { 'fail' })
        message = $(if ($Skipped) { 'Optional gate was deliberately skipped.' } elseif ($Passed) { 'Expected state observed.' } else { 'Expected state was not observed.' })
        evidence = @{ command = $Command; expected = $Expected; actual = $Actual; capturedAt = $capturedAt; redacted = $true }
    })
}

# CHECKPOINT LAB19-CP01 BEGIN
$checkpointState = @($state.checkpointStates | Where-Object { $_.checkpointId -eq 'LAB19-CP01' })[0]
$checkpointObjects = @($state.managedObjects | Where-Object { $_.checkpointId -eq 'LAB19-CP01' })

if ($Mode -eq 'Deployment') {
    if ($checkpointState.status -eq 'skipped') {
        Add-ValidationCheck -Id 'lab19-cp01.positive' -CheckpointId 'LAB19-CP01' -Kind 'positive' -Required ([bool]$checkpointState.required) -Passed $true -Skipped $true -Command 'optional gate evaluation' -Expected 'The optional checkpoint is explicitly skipped when its documented input is absent.' -Actual 'optional gate absent'
        Add-ValidationCheck -Id 'lab19-cp01.negative' -CheckpointId 'LAB19-CP01' -Kind 'negative' -Required ([bool]$checkpointState.required) -Passed $true -Skipped $true -Command 'optional gate evaluation' -Expected 'No mutation occurs for a skipped optional checkpoint.' -Actual 'optional gate absent'
    } else {
    $positivePassed = $checkpointState.status -eq 'pass'
    $positiveActual = "checkpoint=$($checkpointState.status); managedObjects=$($checkpointObjects.Count)"
    foreach ($managedObject in $checkpointObjects) {
        if ($managedObject.type -eq 'Microsoft.Management/managementGroups') {
            $null = az account management-group show --name $managedObject.name --output none 2>$null
            if ($LASTEXITCODE -ne 0) { $positivePassed = $false; $positiveActual += "; missing=$($managedObject.id)" }
        } elseif ($managedObject.kind -eq 'azure-resource') {
            $null = az resource show --ids $managedObject.id --output none 2>$null
            if ($LASTEXITCODE -ne 0) { $positivePassed = $false; $positiveActual += "; missing=$($managedObject.id)" }
        } elseif ($managedObject.kind -eq 'entra-object') {
            $null = az rest --method get --url "https://graph.microsoft.com/v1.0/directoryObjects/$($managedObject.id)" --output none 2>$null
            if ($LASTEXITCODE -ne 0) { $positivePassed = $false; $positiveActual += "; missing=$($managedObject.id)" }
        }
    }

    # AUTHORED SERVICE ASSERTION: positive
    try {
        $LASTEXITCODE = 0
        & {
$network = az provider show --namespace Microsoft.Network --query registrationState --output tsv
if ($network -ne 'Registered') { throw 'Microsoft.Network is not registered.' }
        } | Out-Null
        if ($LASTEXITCODE -ne 0) {
            $positivePassed = $false
            $positiveActual += "; serviceProbeExit=$LASTEXITCODE"
        } else {
            $positiveActual += '; serviceProbe=pass (output not persisted)'
        }
    } catch {
        $positivePassed = $false
        $positiveActual += "; serviceProbeError=$($_.Exception.GetType().Name)"
    }
    Add-ValidationCheck -Id 'lab19-cp01.positive' -CheckpointId 'LAB19-CP01' -Kind 'positive' -Required ([bool]$checkpointState.required) -Passed $positivePassed -Command 'query each manifest-recorded object by exact ID and run the authored service probe' -Expected 'Checkpoint state is pass, recorded objects exist, and service state matches.' -Actual $positiveActual

    $unsafe = @($checkpointObjects | Where-Object { $_.ownership.method -eq 'manifest-id-and-tags' -and ($_.ownership.expectedTags.runId -ne $RunId) })

    # AUTHORED SERVICE ASSERTION: negative
    $negativeProbePassed = $true
    $negativeProbeActual = 'serviceProbe=pass (output not persisted)'
    try {
        $LASTEXITCODE = 0
        & {
$storageProvider = az provider show --namespace Microsoft.Storage --query registrationState --output tsv
if ($storageProvider -ne 'Registered') { throw 'Microsoft.Storage is not registered.' }
        } | Out-Null
        if ($LASTEXITCODE -ne 0) {
            $negativeProbePassed = $false
            $negativeProbeActual = "serviceProbeExit=$LASTEXITCODE"
        }
    } catch {
        $negativeProbePassed = $false
        $negativeProbeActual = "serviceProbeError=$($_.Exception.GetType().Name)"
    }
    $negativePassed = $unsafe.Count -eq 0 -and $negativeProbePassed
    $negativeActual = "unsafeObjects=$($unsafe.Count)" + "; $negativeProbeActual"
    Add-ValidationCheck -Id 'lab19-cp01.negative' -CheckpointId 'LAB19-CP01' -Kind 'negative' -Required ([bool]$checkpointState.required) -Passed $negativePassed -Command 'run the authored denied-state probe and compare manifest ownership' -Expected 'The service boundary and ownership checks both pass.' -Actual $negativeActual
    }
} else {
    $active = [System.Collections.Generic.List[string]]::new()
    foreach ($managedObject in $checkpointObjects) {
        if ($managedObject.type -eq 'Microsoft.Management/managementGroups') {
            $null = az account management-group show --name $managedObject.name --output none 2>$null
            if ($LASTEXITCODE -eq 0) { $active.Add([string]$managedObject.id) }
        } elseif ($managedObject.kind -eq 'azure-resource') {
            $null = az resource show --ids $managedObject.id --output none 2>$null
            if ($LASTEXITCODE -eq 0) { $active.Add([string]$managedObject.id) }
        } elseif ($managedObject.kind -eq 'entra-object') {
            $null = az rest --method get --url "https://graph.microsoft.com/v1.0/directoryObjects/$($managedObject.id)" --output none 2>$null
            if ($LASTEXITCODE -eq 0) { $active.Add([string]$managedObject.id) }
        }
    }
    Add-ValidationCheck -Id 'lab19-cp01.residual' -CheckpointId 'LAB19-CP01' -Kind 'residual' -Required ([bool]$checkpointState.required) -Passed ($active.Count -eq 0) -Command 'query every recorded object by exact ID after cleanup' -Expected 'No active manifest-managed object remains.' -Actual "active=$($active -join ',')"
}
# CHECKPOINT LAB19-CP01 END

# CHECKPOINT LAB19-CP02 BEGIN
$checkpointState = @($state.checkpointStates | Where-Object { $_.checkpointId -eq 'LAB19-CP02' })[0]
$checkpointObjects = @($state.managedObjects | Where-Object { $_.checkpointId -eq 'LAB19-CP02' })

if ($Mode -eq 'Deployment') {
    if ($checkpointState.status -eq 'skipped') {
        Add-ValidationCheck -Id 'lab19-cp02.positive' -CheckpointId 'LAB19-CP02' -Kind 'positive' -Required ([bool]$checkpointState.required) -Passed $true -Skipped $true -Command 'optional gate evaluation' -Expected 'The optional checkpoint is explicitly skipped when its documented input is absent.' -Actual 'optional gate absent'
        Add-ValidationCheck -Id 'lab19-cp02.negative' -CheckpointId 'LAB19-CP02' -Kind 'negative' -Required ([bool]$checkpointState.required) -Passed $true -Skipped $true -Command 'optional gate evaluation' -Expected 'No mutation occurs for a skipped optional checkpoint.' -Actual 'optional gate absent'
    } else {
    $positivePassed = $checkpointState.status -eq 'pass'
    $positiveActual = "checkpoint=$($checkpointState.status); managedObjects=$($checkpointObjects.Count)"
    foreach ($managedObject in $checkpointObjects) {
        if ($managedObject.type -eq 'Microsoft.Management/managementGroups') {
            $null = az account management-group show --name $managedObject.name --output none 2>$null
            if ($LASTEXITCODE -ne 0) { $positivePassed = $false; $positiveActual += "; missing=$($managedObject.id)" }
        } elseif ($managedObject.kind -eq 'azure-resource') {
            $null = az resource show --ids $managedObject.id --output none 2>$null
            if ($LASTEXITCODE -ne 0) { $positivePassed = $false; $positiveActual += "; missing=$($managedObject.id)" }
        } elseif ($managedObject.kind -eq 'entra-object') {
            $null = az rest --method get --url "https://graph.microsoft.com/v1.0/directoryObjects/$($managedObject.id)" --output none 2>$null
            if ($LASTEXITCODE -ne 0) { $positivePassed = $false; $positiveActual += "; missing=$($managedObject.id)" }
        }
    }

    # AUTHORED SERVICE ASSERTION: positive
    try {
        $LASTEXITCODE = 0
        & {
$serviceEndpoint = az network vnet subnet show --resource-group $ResourceGroupName --vnet-name $vnet --name service --query "serviceEndpoints[?service=='Microsoft.Storage'] | length(@)" --output tsv
if ([int]$serviceEndpoint -ne 1) { throw 'The Storage service endpoint is absent.' }
        } | Out-Null
        if ($LASTEXITCODE -ne 0) {
            $positivePassed = $false
            $positiveActual += "; serviceProbeExit=$LASTEXITCODE"
        } else {
            $positiveActual += '; serviceProbe=pass (output not persisted)'
        }
    } catch {
        $positivePassed = $false
        $positiveActual += "; serviceProbeError=$($_.Exception.GetType().Name)"
    }
    Add-ValidationCheck -Id 'lab19-cp02.positive' -CheckpointId 'LAB19-CP02' -Kind 'positive' -Required ([bool]$checkpointState.required) -Passed $positivePassed -Command 'query each manifest-recorded object by exact ID and run the authored service probe' -Expected 'Checkpoint state is pass, recorded objects exist, and service state matches.' -Actual $positiveActual

    $unsafe = @($checkpointObjects | Where-Object { $_.ownership.method -eq 'manifest-id-and-tags' -and ($_.ownership.expectedTags.runId -ne $RunId) })

    # AUTHORED SERVICE ASSERTION: negative
    $negativeProbePassed = $true
    $negativeProbeActual = 'serviceProbe=pass (output not persisted)'
    try {
        $LASTEXITCODE = 0
        & {
$defaultAction = az storage account show --resource-group $ResourceGroupName --name $storage --query networkRuleSet.defaultAction --output tsv
if ($defaultAction -ne 'Deny') { throw "Storage default network action is $defaultAction." }
        } | Out-Null
        if ($LASTEXITCODE -ne 0) {
            $negativeProbePassed = $false
            $negativeProbeActual = "serviceProbeExit=$LASTEXITCODE"
        }
    } catch {
        $negativeProbePassed = $false
        $negativeProbeActual = "serviceProbeError=$($_.Exception.GetType().Name)"
    }
    $negativePassed = $unsafe.Count -eq 0 -and $negativeProbePassed
    $negativeActual = "unsafeObjects=$($unsafe.Count)" + "; $negativeProbeActual"
    Add-ValidationCheck -Id 'lab19-cp02.negative' -CheckpointId 'LAB19-CP02' -Kind 'negative' -Required ([bool]$checkpointState.required) -Passed $negativePassed -Command 'run the authored denied-state probe and compare manifest ownership' -Expected 'The service boundary and ownership checks both pass.' -Actual $negativeActual
    }
} else {
    $active = [System.Collections.Generic.List[string]]::new()
    foreach ($managedObject in $checkpointObjects) {
        if ($managedObject.type -eq 'Microsoft.Management/managementGroups') {
            $null = az account management-group show --name $managedObject.name --output none 2>$null
            if ($LASTEXITCODE -eq 0) { $active.Add([string]$managedObject.id) }
        } elseif ($managedObject.kind -eq 'azure-resource') {
            $null = az resource show --ids $managedObject.id --output none 2>$null
            if ($LASTEXITCODE -eq 0) { $active.Add([string]$managedObject.id) }
        } elseif ($managedObject.kind -eq 'entra-object') {
            $null = az rest --method get --url "https://graph.microsoft.com/v1.0/directoryObjects/$($managedObject.id)" --output none 2>$null
            if ($LASTEXITCODE -eq 0) { $active.Add([string]$managedObject.id) }
        }
    }
    Add-ValidationCheck -Id 'lab19-cp02.residual' -CheckpointId 'LAB19-CP02' -Kind 'residual' -Required ([bool]$checkpointState.required) -Passed ($active.Count -eq 0) -Command 'query every recorded object by exact ID after cleanup' -Expected 'No active manifest-managed object remains.' -Actual "active=$($active -join ',')"
}
# CHECKPOINT LAB19-CP02 END

# CHECKPOINT LAB19-CP03 BEGIN
$checkpointState = @($state.checkpointStates | Where-Object { $_.checkpointId -eq 'LAB19-CP03' })[0]
$checkpointObjects = @($state.managedObjects | Where-Object { $_.checkpointId -eq 'LAB19-CP03' })

if ($Mode -eq 'Deployment') {
    if ($checkpointState.status -eq 'skipped') {
        Add-ValidationCheck -Id 'lab19-cp03.positive' -CheckpointId 'LAB19-CP03' -Kind 'positive' -Required ([bool]$checkpointState.required) -Passed $true -Skipped $true -Command 'optional gate evaluation' -Expected 'The optional checkpoint is explicitly skipped when its documented input is absent.' -Actual 'optional gate absent'
        Add-ValidationCheck -Id 'lab19-cp03.negative' -CheckpointId 'LAB19-CP03' -Kind 'negative' -Required ([bool]$checkpointState.required) -Passed $true -Skipped $true -Command 'optional gate evaluation' -Expected 'No mutation occurs for a skipped optional checkpoint.' -Actual 'optional gate absent'
    } else {
    $positivePassed = $checkpointState.status -eq 'pass'
    $positiveActual = "checkpoint=$($checkpointState.status); managedObjects=$($checkpointObjects.Count)"
    foreach ($managedObject in $checkpointObjects) {
        if ($managedObject.type -eq 'Microsoft.Management/managementGroups') {
            $null = az account management-group show --name $managedObject.name --output none 2>$null
            if ($LASTEXITCODE -ne 0) { $positivePassed = $false; $positiveActual += "; missing=$($managedObject.id)" }
        } elseif ($managedObject.kind -eq 'azure-resource') {
            $null = az resource show --ids $managedObject.id --output none 2>$null
            if ($LASTEXITCODE -ne 0) { $positivePassed = $false; $positiveActual += "; missing=$($managedObject.id)" }
        } elseif ($managedObject.kind -eq 'entra-object') {
            $null = az rest --method get --url "https://graph.microsoft.com/v1.0/directoryObjects/$($managedObject.id)" --output none 2>$null
            if ($LASTEXITCODE -ne 0) { $positivePassed = $false; $positiveActual += "; missing=$($managedObject.id)" }
        }
    }

    # AUTHORED SERVICE ASSERTION: positive
    try {
        $LASTEXITCODE = 0
        & {
$connection = az network private-endpoint show --resource-group $ResourceGroupName --name $endpoint --query "privateLinkServiceConnections[0].privateLinkServiceConnectionState.status" --output tsv
if ($connection -ne 'Approved') { throw "Private endpoint connection is $connection." }
        } | Out-Null
        if ($LASTEXITCODE -ne 0) {
            $positivePassed = $false
            $positiveActual += "; serviceProbeExit=$LASTEXITCODE"
        } else {
            $positiveActual += '; serviceProbe=pass (output not persisted)'
        }
    } catch {
        $positivePassed = $false
        $positiveActual += "; serviceProbeError=$($_.Exception.GetType().Name)"
    }
    Add-ValidationCheck -Id 'lab19-cp03.positive' -CheckpointId 'LAB19-CP03' -Kind 'positive' -Required ([bool]$checkpointState.required) -Passed $positivePassed -Command 'query each manifest-recorded object by exact ID and run the authored service probe' -Expected 'Checkpoint state is pass, recorded objects exist, and service state matches.' -Actual $positiveActual

    $unsafe = @($checkpointObjects | Where-Object { $_.ownership.method -eq 'manifest-id-and-tags' -and ($_.ownership.expectedTags.runId -ne $RunId) })

    # AUTHORED SERVICE ASSERTION: negative
    $negativeProbePassed = $true
    $negativeProbeActual = 'serviceProbe=pass (output not persisted)'
    try {
        $LASTEXITCODE = 0
        & {
$policies = az network vnet subnet show --resource-group $ResourceGroupName --vnet-name $vnet --name private --query privateEndpointNetworkPolicies --output tsv
if ($policies -notin @('Disabled','NetworkSecurityGroupEnabled','RouteTableEnabled')) { throw "Unexpected private endpoint policy state: $policies" }
        } | Out-Null
        if ($LASTEXITCODE -ne 0) {
            $negativeProbePassed = $false
            $negativeProbeActual = "serviceProbeExit=$LASTEXITCODE"
        }
    } catch {
        $negativeProbePassed = $false
        $negativeProbeActual = "serviceProbeError=$($_.Exception.GetType().Name)"
    }
    $negativePassed = $unsafe.Count -eq 0 -and $negativeProbePassed
    $negativeActual = "unsafeObjects=$($unsafe.Count)" + "; $negativeProbeActual"
    Add-ValidationCheck -Id 'lab19-cp03.negative' -CheckpointId 'LAB19-CP03' -Kind 'negative' -Required ([bool]$checkpointState.required) -Passed $negativePassed -Command 'run the authored denied-state probe and compare manifest ownership' -Expected 'The service boundary and ownership checks both pass.' -Actual $negativeActual
    }
} else {
    $active = [System.Collections.Generic.List[string]]::new()
    foreach ($managedObject in $checkpointObjects) {
        if ($managedObject.type -eq 'Microsoft.Management/managementGroups') {
            $null = az account management-group show --name $managedObject.name --output none 2>$null
            if ($LASTEXITCODE -eq 0) { $active.Add([string]$managedObject.id) }
        } elseif ($managedObject.kind -eq 'azure-resource') {
            $null = az resource show --ids $managedObject.id --output none 2>$null
            if ($LASTEXITCODE -eq 0) { $active.Add([string]$managedObject.id) }
        } elseif ($managedObject.kind -eq 'entra-object') {
            $null = az rest --method get --url "https://graph.microsoft.com/v1.0/directoryObjects/$($managedObject.id)" --output none 2>$null
            if ($LASTEXITCODE -eq 0) { $active.Add([string]$managedObject.id) }
        }
    }
    Add-ValidationCheck -Id 'lab19-cp03.residual' -CheckpointId 'LAB19-CP03' -Kind 'residual' -Required ([bool]$checkpointState.required) -Passed ($active.Count -eq 0) -Command 'query every recorded object by exact ID after cleanup' -Expected 'No active manifest-managed object remains.' -Actual "active=$($active -join ',')"
}
# CHECKPOINT LAB19-CP03 END

# CHECKPOINT LAB19-CP04 BEGIN
$checkpointState = @($state.checkpointStates | Where-Object { $_.checkpointId -eq 'LAB19-CP04' })[0]
$checkpointObjects = @($state.managedObjects | Where-Object { $_.checkpointId -eq 'LAB19-CP04' })

if ($Mode -eq 'Deployment') {
    if ($checkpointState.status -eq 'skipped') {
        Add-ValidationCheck -Id 'lab19-cp04.positive' -CheckpointId 'LAB19-CP04' -Kind 'positive' -Required ([bool]$checkpointState.required) -Passed $true -Skipped $true -Command 'optional gate evaluation' -Expected 'The optional checkpoint is explicitly skipped when its documented input is absent.' -Actual 'optional gate absent'
        Add-ValidationCheck -Id 'lab19-cp04.negative' -CheckpointId 'LAB19-CP04' -Kind 'negative' -Required ([bool]$checkpointState.required) -Passed $true -Skipped $true -Command 'optional gate evaluation' -Expected 'No mutation occurs for a skipped optional checkpoint.' -Actual 'optional gate absent'
    } else {
    $positivePassed = $checkpointState.status -eq 'pass'
    $positiveActual = "checkpoint=$($checkpointState.status); managedObjects=$($checkpointObjects.Count)"
    foreach ($managedObject in $checkpointObjects) {
        if ($managedObject.type -eq 'Microsoft.Management/managementGroups') {
            $null = az account management-group show --name $managedObject.name --output none 2>$null
            if ($LASTEXITCODE -ne 0) { $positivePassed = $false; $positiveActual += "; missing=$($managedObject.id)" }
        } elseif ($managedObject.kind -eq 'azure-resource') {
            $null = az resource show --ids $managedObject.id --output none 2>$null
            if ($LASTEXITCODE -ne 0) { $positivePassed = $false; $positiveActual += "; missing=$($managedObject.id)" }
        } elseif ($managedObject.kind -eq 'entra-object') {
            $null = az rest --method get --url "https://graph.microsoft.com/v1.0/directoryObjects/$($managedObject.id)" --output none 2>$null
            if ($LASTEXITCODE -ne 0) { $positivePassed = $false; $positiveActual += "; missing=$($managedObject.id)" }
        }
    }

    # AUTHORED SERVICE ASSERTION: positive
    try {
        $LASTEXITCODE = 0
        & {
$zoneGroups = az network private-endpoint dns-zone-group list --resource-group $ResourceGroupName --endpoint-name $endpoint --query "length(@)" --output tsv
if ([int]$zoneGroups -ne 1) { throw "Expected one DNS zone group; found $zoneGroups." }
        } | Out-Null
        if ($LASTEXITCODE -ne 0) {
            $positivePassed = $false
            $positiveActual += "; serviceProbeExit=$LASTEXITCODE"
        } else {
            $positiveActual += '; serviceProbe=pass (output not persisted)'
        }
    } catch {
        $positivePassed = $false
        $positiveActual += "; serviceProbeError=$($_.Exception.GetType().Name)"
    }
    Add-ValidationCheck -Id 'lab19-cp04.positive' -CheckpointId 'LAB19-CP04' -Kind 'positive' -Required ([bool]$checkpointState.required) -Passed $positivePassed -Command 'query each manifest-recorded object by exact ID and run the authored service probe' -Expected 'Checkpoint state is pass, recorded objects exist, and service state matches.' -Actual $positiveActual

    $unsafe = @($checkpointObjects | Where-Object { $_.ownership.method -eq 'manifest-id-and-tags' -and ($_.ownership.expectedTags.runId -ne $RunId) })

    # AUTHORED SERVICE ASSERTION: negative
    $negativeProbePassed = $true
    $negativeProbeActual = 'serviceProbe=pass (output not persisted)'
    try {
        $LASTEXITCODE = 0
        & {
$links = az network private-dns link vnet list --resource-group $ResourceGroupName --zone-name $zone --query "[?virtualNetwork.id!=null] | length(@)" --output tsv
if ([int]$links -ne 1) { throw "Expected one VNet link; found $links." }
        } | Out-Null
        if ($LASTEXITCODE -ne 0) {
            $negativeProbePassed = $false
            $negativeProbeActual = "serviceProbeExit=$LASTEXITCODE"
        }
    } catch {
        $negativeProbePassed = $false
        $negativeProbeActual = "serviceProbeError=$($_.Exception.GetType().Name)"
    }
    $negativePassed = $unsafe.Count -eq 0 -and $negativeProbePassed
    $negativeActual = "unsafeObjects=$($unsafe.Count)" + "; $negativeProbeActual"
    Add-ValidationCheck -Id 'lab19-cp04.negative' -CheckpointId 'LAB19-CP04' -Kind 'negative' -Required ([bool]$checkpointState.required) -Passed $negativePassed -Command 'run the authored denied-state probe and compare manifest ownership' -Expected 'The service boundary and ownership checks both pass.' -Actual $negativeActual
    }
} else {
    $active = [System.Collections.Generic.List[string]]::new()
    foreach ($managedObject in $checkpointObjects) {
        if ($managedObject.type -eq 'Microsoft.Management/managementGroups') {
            $null = az account management-group show --name $managedObject.name --output none 2>$null
            if ($LASTEXITCODE -eq 0) { $active.Add([string]$managedObject.id) }
        } elseif ($managedObject.kind -eq 'azure-resource') {
            $null = az resource show --ids $managedObject.id --output none 2>$null
            if ($LASTEXITCODE -eq 0) { $active.Add([string]$managedObject.id) }
        } elseif ($managedObject.kind -eq 'entra-object') {
            $null = az rest --method get --url "https://graph.microsoft.com/v1.0/directoryObjects/$($managedObject.id)" --output none 2>$null
            if ($LASTEXITCODE -eq 0) { $active.Add([string]$managedObject.id) }
        }
    }
    Add-ValidationCheck -Id 'lab19-cp04.residual' -CheckpointId 'LAB19-CP04' -Kind 'residual' -Required ([bool]$checkpointState.required) -Passed ($active.Count -eq 0) -Command 'query every recorded object by exact ID after cleanup' -Expected 'No active manifest-managed object remains.' -Actual "active=$($active -join ',')"
}
# CHECKPOINT LAB19-CP04 END

# CHECKPOINT LAB19-CP05 BEGIN
$checkpointState = @($state.checkpointStates | Where-Object { $_.checkpointId -eq 'LAB19-CP05' })[0]
$checkpointObjects = @($state.managedObjects | Where-Object { $_.checkpointId -eq 'LAB19-CP05' })

if ($Mode -eq 'Deployment') {
    if ($checkpointState.status -eq 'skipped') {
        Add-ValidationCheck -Id 'lab19-cp05.positive' -CheckpointId 'LAB19-CP05' -Kind 'positive' -Required ([bool]$checkpointState.required) -Passed $true -Skipped $true -Command 'optional gate evaluation' -Expected 'The optional checkpoint is explicitly skipped when its documented input is absent.' -Actual 'optional gate absent'
        Add-ValidationCheck -Id 'lab19-cp05.negative' -CheckpointId 'LAB19-CP05' -Kind 'negative' -Required ([bool]$checkpointState.required) -Passed $true -Skipped $true -Command 'optional gate evaluation' -Expected 'No mutation occurs for a skipped optional checkpoint.' -Actual 'optional gate absent'
    } else {
    $positivePassed = $checkpointState.status -eq 'pass'
    $positiveActual = "checkpoint=$($checkpointState.status); managedObjects=$($checkpointObjects.Count)"
    foreach ($managedObject in $checkpointObjects) {
        if ($managedObject.type -eq 'Microsoft.Management/managementGroups') {
            $null = az account management-group show --name $managedObject.name --output none 2>$null
            if ($LASTEXITCODE -ne 0) { $positivePassed = $false; $positiveActual += "; missing=$($managedObject.id)" }
        } elseif ($managedObject.kind -eq 'azure-resource') {
            $null = az resource show --ids $managedObject.id --output none 2>$null
            if ($LASTEXITCODE -ne 0) { $positivePassed = $false; $positiveActual += "; missing=$($managedObject.id)" }
        } elseif ($managedObject.kind -eq 'entra-object') {
            $null = az rest --method get --url "https://graph.microsoft.com/v1.0/directoryObjects/$($managedObject.id)" --output none 2>$null
            if ($LASTEXITCODE -ne 0) { $positivePassed = $false; $positiveActual += "; missing=$($managedObject.id)" }
        }
    }

    # AUTHORED SERVICE ASSERTION: positive
    try {
        $LASTEXITCODE = 0
        & {
$records = az network private-dns record-set a list --resource-group $ResourceGroupName --zone-name $zone --query "length(@)" --output tsv
if ([int]$records -lt 1) { throw 'The private DNS A record is absent.' }
        } | Out-Null
        if ($LASTEXITCODE -ne 0) {
            $positivePassed = $false
            $positiveActual += "; serviceProbeExit=$LASTEXITCODE"
        } else {
            $positiveActual += '; serviceProbe=pass (output not persisted)'
        }
    } catch {
        $positivePassed = $false
        $positiveActual += "; serviceProbeError=$($_.Exception.GetType().Name)"
    }
    Add-ValidationCheck -Id 'lab19-cp05.positive' -CheckpointId 'LAB19-CP05' -Kind 'positive' -Required ([bool]$checkpointState.required) -Passed $positivePassed -Command 'query each manifest-recorded object by exact ID and run the authored service probe' -Expected 'Checkpoint state is pass, recorded objects exist, and service state matches.' -Actual $positiveActual

    $unsafe = @($checkpointObjects | Where-Object { $_.ownership.method -eq 'manifest-id-and-tags' -and ($_.ownership.expectedTags.runId -ne $RunId) })

    # AUTHORED SERVICE ASSERTION: negative
    $negativeProbePassed = $true
    $negativeProbeActual = 'serviceProbe=pass (output not persisted)'
    try {
        $LASTEXITCODE = 0
        & {
$publicAccess = az storage account show --resource-group $ResourceGroupName --name $storage --query publicNetworkAccess --output tsv
if ($publicAccess -eq 'Disabled') { return }
$defaultAction = az storage account show --resource-group $ResourceGroupName --name $storage --query networkRuleSet.defaultAction --output tsv
if ($defaultAction -ne 'Deny') { throw 'The storage public network boundary is permissive.' }
        } | Out-Null
        if ($LASTEXITCODE -ne 0) {
            $negativeProbePassed = $false
            $negativeProbeActual = "serviceProbeExit=$LASTEXITCODE"
        }
    } catch {
        $negativeProbePassed = $false
        $negativeProbeActual = "serviceProbeError=$($_.Exception.GetType().Name)"
    }
    $negativePassed = $unsafe.Count -eq 0 -and $negativeProbePassed
    $negativeActual = "unsafeObjects=$($unsafe.Count)" + "; $negativeProbeActual"
    Add-ValidationCheck -Id 'lab19-cp05.negative' -CheckpointId 'LAB19-CP05' -Kind 'negative' -Required ([bool]$checkpointState.required) -Passed $negativePassed -Command 'run the authored denied-state probe and compare manifest ownership' -Expected 'The service boundary and ownership checks both pass.' -Actual $negativeActual
    }
} else {
    $active = [System.Collections.Generic.List[string]]::new()
    foreach ($managedObject in $checkpointObjects) {
        if ($managedObject.type -eq 'Microsoft.Management/managementGroups') {
            $null = az account management-group show --name $managedObject.name --output none 2>$null
            if ($LASTEXITCODE -eq 0) { $active.Add([string]$managedObject.id) }
        } elseif ($managedObject.kind -eq 'azure-resource') {
            $null = az resource show --ids $managedObject.id --output none 2>$null
            if ($LASTEXITCODE -eq 0) { $active.Add([string]$managedObject.id) }
        } elseif ($managedObject.kind -eq 'entra-object') {
            $null = az rest --method get --url "https://graph.microsoft.com/v1.0/directoryObjects/$($managedObject.id)" --output none 2>$null
            if ($LASTEXITCODE -eq 0) { $active.Add([string]$managedObject.id) }
        }
    }
    Add-ValidationCheck -Id 'lab19-cp05.residual' -CheckpointId 'LAB19-CP05' -Kind 'residual' -Required ([bool]$checkpointState.required) -Passed ($active.Count -eq 0) -Command 'query every recorded object by exact ID after cleanup' -Expected 'No active manifest-managed object remains.' -Actual "active=$($active -join ',')"
}
# CHECKPOINT LAB19-CP05 END

$requiredChecks = @($checks | Where-Object { $_.required })
$failedChecks = @($checks | Where-Object { $_.status -eq 'fail' })
$requiredSkippedChecks = @($checks | Where-Object { $_.required -and $_.status -eq 'skipped' })
$skippedChecks = @($checks | Where-Object { $_.status -eq 'skipped' })
$result = if ($failedChecks.Count -gt 0 -or $requiredSkippedChecks.Count -gt 0) { 'fail' } elseif ($skippedChecks.Count -gt 0) { 'partial' } else { 'pass' }
$document = @{
    schemaVersion = '1.0.0'
    labId = 'LAB-19'
    runId = $RunId
    mode = $Mode
    generatedAt = (Get-Date).ToUniversalTime().ToString('o')
    result = $result
    summary = @{
        required = $requiredChecks.Count
        passed = @($checks | Where-Object { $_.status -eq 'pass' }).Count
        failed = $failedChecks.Count
        skipped = $skippedChecks.Count
    }
    checks = @($checks)
}
$document | ConvertTo-Json -Depth 30 | Set-Content -LiteralPath $ValidationPath -Encoding utf8
Write-Host "Validation $Mode result: $result"
Write-Host "Artifact: $ValidationPath"
if ($result -eq 'fail') { exit 1 }
# END GENERATED AZ104 V2

Cleanup.ps1

# BEGIN GENERATED AZ104 V2
#requires -Version 7.4
[CmdletBinding()]
[Diagnostics.CodeAnalysis.SuppressMessageAttribute('PSAvoidUsingWriteHost', '', Justification = 'Interactive lab progress is intentionally written to the host.')]
[Diagnostics.CodeAnalysis.SuppressMessageAttribute('PSReviewUnusedParameter', '', Justification = 'All lifecycle scripts expose a stable cross-lab interface.')]
[Diagnostics.CodeAnalysis.SuppressMessageAttribute('PSUseDeclaredVarsMoreThanAssignments', '', Justification = 'Generated task variables are intentionally shared across checkpoint blocks.')]
param(
    [string]$SubscriptionId = $env:AZ104_SUBSCRIPTION_ID,
    [Parameter(Mandatory)][ValidatePattern('^[a-z0-9](?:[a-z0-9-]{0,30}[a-z0-9])?$')][string]$RunId,
    [switch]$Execute
)

Set-StrictMode -Version Latest
$ErrorActionPreference = 'Stop'
$PSNativeCommandUseErrorActionPreference = $true

if (-not (Get-Command az -ErrorAction SilentlyContinue)) {
    throw 'Azure CLI is required. Run the repository readiness initializer, then retry.'
}

$LabRoot = (Resolve-Path (Join-Path $PSScriptRoot '../..')).Path
$StateDir = Join-Path $LabRoot ".state/$RunId"
$Manifest = Join-Path $StateDir 'run.json'
$CleanupPath = Join-Path $StateDir 'cleanup.json'
if (-not (Test-Path -LiteralPath $Manifest)) { throw "Run manifest not found: $Manifest" }
$state = Get-Content -LiteralPath $Manifest -Raw | ConvertFrom-Json -AsHashtable
$active = @($state.managedObjects | Where-Object { $_.lifecycleStatus -eq 'active' })
function Write-CleanupRefusal {
    param([string]$Message)
    $refusalActions = @($active | ForEach-Object {
        @{ checkpointId = [string]$_.checkpointId; targetId = [string]$_.id; targetType = [string]$_.type; ownership = @{ method = [string]$_.ownership.method; verified = $false }; status = 'failed'; message = $Message }
    })
    $refusal = @{
        schemaVersion = '1.0.0'; labId = 'LAB-19'; runId = $RunId
        generatedAt = (Get-Date).ToUniversalTime().ToString('o')
        executionMode = $(if ($Execute) { 'execute' } else { 'preview' })
        result = $(if ($Execute) { 'fail' } else { 'preview' })
        ownershipVerified = $false; actions = $refusalActions
        residualChecks = @(@{ id = 'ownership.refusal'; command = 'compare manifest, active context, exact IDs, and ownership proof'; expected = 'all ownership checks pass before mutation'; actual = $Message; status = $(if ($Execute) { 'fail' } else { 'skipped' }) })
        activeManagedObjects = @($active | ForEach-Object id); retainedItems = @()
    }
    $refusal | ConvertTo-Json -Depth 30 | Set-Content -LiteralPath $CleanupPath -Encoding utf8
    throw $Message
}
if ($state.labId -ne 'LAB-19' -or $state.runId -ne $RunId) {
    Write-CleanupRefusal -Message 'Cleanup ownership refusal: manifest lab ID or run ID does not match.'
}
if ($Execute -and $active.Count -eq 0 -and $state.status -eq 'cleaned') {
    $priorRetained = @()
    if (Test-Path -LiteralPath $CleanupPath) {
        try { $priorRetained = @((Get-Content -LiteralPath $CleanupPath -Raw | ConvertFrom-Json).retainedItems) } catch { $priorRetained = @() }
    }
    $idempotent = @{
        schemaVersion = '1.0.0'; labId = 'LAB-19'; runId = $RunId
        generatedAt = (Get-Date).ToUniversalTime().ToString('o'); executionMode = 'execute'; result = 'pass'
        ownershipVerified = $true; actions = @(); activeManagedObjects = @(); retainedItems = $priorRetained
        residualChecks = @(@{ id = 'cleanup.idempotent'; command = 'read run.json active managed-object inventory'; expected = 'zero active manifest-managed objects'; actual = 'active=0; prior cleanup already completed'; status = 'pass' })
    }
    $idempotent | ConvertTo-Json -Depth 30 | Set-Content -LiteralPath $CleanupPath -Encoding utf8
    Write-Host 'Cleanup result: pass (already cleaned)'
    Write-Host "Artifact: $CleanupPath"
    return
}
try {
    $account = az account show --output json | ConvertFrom-Json
} catch {
    Write-CleanupRefusal -Message 'Cleanup ownership refusal: active Azure context could not be read.'
}
if ([string]$account.tenantId -ne [string]$state.context.tenantId -or [string]$account.id -ne [string]$state.context.subscriptionId) {
    Write-CleanupRefusal -Message 'Cleanup ownership refusal: active context does not match the manifest.'
}
$SubscriptionId = [string]$state.context.subscriptionId
$Location = [string]$state.inputs['location']
$SecondaryLocation = [string]$state.inputs['secondary-location']
$ResourceGroupName = $(if ('19' -in @('00', '01', '02')) { $null } else { "rg-az104-l19-$RunId" })
$suffix = (($RunId -replace '[^a-z0-9]', '') + '000000000000').Substring(0, 12)


$ownershipVerified = $true
$verifiedOwnershipById = @{}
$absentIds = [System.Collections.Generic.HashSet[string]]::new([System.StringComparer]::OrdinalIgnoreCase)
$verifiedResourceGroupIds = [System.Collections.Generic.List[string]]::new()
$resourceGroupObjects = @($active | Where-Object { $_.type -eq 'Microsoft.Resources/resourceGroups' })
$resourceGroupObject = $resourceGroupObjects | Select-Object -First 1
$nativeProbePreference = $PSNativeCommandUseErrorActionPreference
$PSNativeCommandUseErrorActionPreference = $false

# A manifest entry is necessary but is not, by itself, proof of ownership. Verify
# each manifest-id-and-tags boundary against the live Azure tags before mutation.
foreach ($groupObject in $resourceGroupObjects) {
    $groupVerified = $false
    try {
        $tagJson = az group show --ids $groupObject.id --query tags --output json 2>$null
        if ($LASTEXITCODE -eq 0 -and $tagJson) {
            $tags = $tagJson | ConvertFrom-Json -AsHashtable
            $expectedTags = $groupObject.ownership.expectedTags
            $groupVerified =
                $groupObject.ownership.method -eq 'manifest-id-and-tags' -and
                [string]$tags['purpose'] -eq [string]$expectedTags['purpose'] -and
                [string]$tags['labId'] -eq [string]$expectedTags['labId'] -and
                [string]$tags['runId'] -eq [string]$expectedTags['runId'] -and
                [string]$tags['purpose'] -eq 'az104-lab' -and
                [string]$tags['labId'] -eq '19' -and
                [string]$tags['runId'] -eq $RunId
        } else {
            $groupExists = az group exists --subscription $state.context.subscriptionId --name $groupObject.name --output tsv 2>$null
            if ($LASTEXITCODE -eq 0 -and $groupExists -eq 'false') {
                $null = $absentIds.Add([string]$groupObject.id)
                $groupVerified = $true
            }
        }
    } catch {
        $groupVerified = $false
    }
    $verifiedOwnershipById[[string]$groupObject.id] = $groupVerified
    if ($groupVerified) { $verifiedResourceGroupIds.Add([string]$groupObject.id) }
    if (-not $groupVerified) { $ownershipVerified = $false }
}

foreach ($object in $active) {
    $objectId = [string]$object.id
    if ($verifiedOwnershipById.ContainsKey($objectId)) { continue }
    $method = [string]$object.ownership.method
    $objectVerified = $false

    $absentGroupBoundary = @($resourceGroupObjects | Where-Object {
        $absentIds.Contains([string]$_.id) -and $objectId.StartsWith("$($_.id)/", [System.StringComparison]::OrdinalIgnoreCase)
    }).Count -gt 0
    if ($absentGroupBoundary) {
        $null = $absentIds.Add($objectId)
        $verifiedOwnershipById[$objectId] = $true
        continue
    }

    if ($method -eq 'manifest-id-and-tags' -and $object.kind -eq 'azure-resource') {
        $expectedTags = $object.ownership.expectedTags
        $manifestTagsMatch =
            [string]$expectedTags['purpose'] -eq 'az104-lab' -and
            [string]$expectedTags['labId'] -eq '19' -and
            [string]$expectedTags['runId'] -eq $RunId
        $verifiedByGroupBoundary = @($verifiedResourceGroupIds | Where-Object {
            $objectId.StartsWith("$_/", [System.StringComparison]::OrdinalIgnoreCase)
        }).Count -gt 0
        $verifiedByOwnTags = $false
        try {
            $tagJson = az resource show --ids $objectId --query tags --output json 2>$null
            if ($LASTEXITCODE -eq 0 -and $tagJson) {
                $tags = $tagJson | ConvertFrom-Json -AsHashtable
                $verifiedByOwnTags =
                    [string]$tags['purpose'] -eq [string]$expectedTags['purpose'] -and
                    [string]$tags['labId'] -eq [string]$expectedTags['labId'] -and
                    [string]$tags['runId'] -eq [string]$expectedTags['runId']
            } elseif ($verifiedByGroupBoundary) {
                $parentGroupObject = $resourceGroupObjects | Where-Object { $objectId.StartsWith("$($_.id)/", [System.StringComparison]::OrdinalIgnoreCase) } | Select-Object -First 1
                $exactCount = az resource list --resource-group $parentGroupObject.name --query "[?id=='$objectId'] | length(@)" --output tsv 2>$null
                if ($LASTEXITCODE -eq 0 -and [int]$exactCount -eq 0) {
                    $null = $absentIds.Add($objectId)
                    $verifiedByOwnTags = $true
                }
            }
        } catch {
            $verifiedByOwnTags = $false
        }
        $objectVerified = $manifestTagsMatch -and ($verifiedByOwnTags -or $verifiedByGroupBoundary)
    } elseif ($method -eq 'manifest-id' -and $object.kind -eq 'azure-resource' -and $object.type -eq 'Microsoft.Management/managementGroups') {
        try {
            $managementGroupJson = az account management-group show --name $object.name --expand --recurse --output json 2>&1
            if ($LASTEXITCODE -eq 0) {
                $managementGroup = $managementGroupJson | ConvertFrom-Json
                $objectVerified = [string]$managementGroup.id -eq $objectId -and @($managementGroup.children).Count -eq 0
            } elseif ([string]$managementGroupJson -match '(?i)404|not.?found') {
                $null = $absentIds.Add($objectId)
                $objectVerified = $true
            }
        } catch {
            $objectVerified = $false
        }
    } elseif ($method -eq 'manifest-id' -and $object.kind -eq 'entra-object') {
        try {
            $graphResult = az rest --method get --url "https://graph.microsoft.com/v1.0/directoryObjects/$objectId" --output none 2>&1
            if ($LASTEXITCODE -eq 0) {
                $objectVerified = $true
            } elseif ([string]$graphResult -match '(?i)404|Request_ResourceNotFound') {
                $null = $absentIds.Add($objectId)
                $objectVerified = $true
            }
        } catch {
            $objectVerified = $false
        }
    } elseif ($method -eq 'manifest-id' -and $object.kind -eq 'azure-resource') {
        try {
            $resourceResult = az resource show --ids $objectId --output none 2>&1
            if ($LASTEXITCODE -eq 0) {
                $objectVerified = $true
            } elseif ([string]$resourceResult -match '(?i)404|ResourceNotFound|could not be found') {
                $null = $absentIds.Add($objectId)
                $objectVerified = $true
            }
        } catch {
            $objectVerified = $false
        }
    } elseif ($method -eq 'local-path') {
        try {
            $candidate = if ([System.IO.Path]::IsPathRooted($objectId)) { $objectId } else { Join-Path $LabRoot $objectId }
            $fullPath = [System.IO.Path]::GetFullPath($candidate)
            $statePrefix = [System.IO.Path]::GetFullPath($StateDir).TrimEnd([System.IO.Path]::DirectorySeparatorChar) + [System.IO.Path]::DirectorySeparatorChar
            $inStateBoundary = $fullPath.StartsWith($statePrefix, [System.StringComparison]::OrdinalIgnoreCase)
            $objectVerified = $inStateBoundary
            if ($inStateBoundary -and -not (Test-Path -LiteralPath $fullPath)) { $null = $absentIds.Add($objectId) }
        } catch {
            $objectVerified = $false
        }
    }

    $verifiedOwnershipById[$objectId] = $objectVerified
    if (-not $objectVerified) { $ownershipVerified = $false }
}
$PSNativeCommandUseErrorActionPreference = $nativeProbePreference

if (-not $ownershipVerified) {
    $failedOwnershipIds = @($active | Where-Object { -not $verifiedOwnershipById[[string]$_.id] } | ForEach-Object id)
    Write-CleanupRefusal -Message "Cleanup ownership refusal: live ID and ownership proof failed for $($failedOwnershipIds -join ', ')."
}

$actions = [System.Collections.Generic.List[object]]::new()
$residualChecks = [System.Collections.Generic.List[object]]::new()
if (-not $Execute) {
    Write-Host 'Preview only. The exact manifest-owned targets below will not be changed.'
}

# CHECKPOINT LAB19-CP05 BEGIN
$targets = @($state.managedObjects | Where-Object { $_.checkpointId -eq 'LAB19-CP05' -and $_.lifecycleStatus -eq 'active' })
foreach ($target in $targets) {
    $alreadyAbsent = $absentIds.Contains([string]$target.id)
    $actions.Add(@{ checkpointId = 'LAB19-CP05'; targetId = [string]$target.id; targetType = [string]$target.type; ownership = @{ method = [string]$target.ownership.method; verified = [bool]$verifiedOwnershipById[[string]$target.id] }; status = $(if ($alreadyAbsent) { 'skipped' } else { 'preview' }); message = $(if ($alreadyAbsent) { 'The exact manifest ID was already absent; idempotent cleanup recorded the safe end state.' } elseif ($Execute) { 'Pending removal through the dependency-safe ownership boundary.' } else { 'Would remove this exact manifest-recorded target.' }) })
}
$state.updatedAt = (Get-Date).ToUniversalTime().ToString('o')
$state | ConvertTo-Json -Depth 30 | Set-Content -LiteralPath $Manifest -Encoding utf8
# CHECKPOINT LAB19-CP05 END

# CHECKPOINT LAB19-CP04 BEGIN
$targets = @($state.managedObjects | Where-Object { $_.checkpointId -eq 'LAB19-CP04' -and $_.lifecycleStatus -eq 'active' })
foreach ($target in $targets) {
    $alreadyAbsent = $absentIds.Contains([string]$target.id)
    $actions.Add(@{ checkpointId = 'LAB19-CP04'; targetId = [string]$target.id; targetType = [string]$target.type; ownership = @{ method = [string]$target.ownership.method; verified = [bool]$verifiedOwnershipById[[string]$target.id] }; status = $(if ($alreadyAbsent) { 'skipped' } else { 'preview' }); message = $(if ($alreadyAbsent) { 'The exact manifest ID was already absent; idempotent cleanup recorded the safe end state.' } elseif ($Execute) { 'Pending removal through the dependency-safe ownership boundary.' } else { 'Would remove this exact manifest-recorded target.' }) })
}
$state.updatedAt = (Get-Date).ToUniversalTime().ToString('o')
$state | ConvertTo-Json -Depth 30 | Set-Content -LiteralPath $Manifest -Encoding utf8
# CHECKPOINT LAB19-CP04 END

# CHECKPOINT LAB19-CP03 BEGIN
$targets = @($state.managedObjects | Where-Object { $_.checkpointId -eq 'LAB19-CP03' -and $_.lifecycleStatus -eq 'active' })
foreach ($target in $targets) {
    $alreadyAbsent = $absentIds.Contains([string]$target.id)
    $actions.Add(@{ checkpointId = 'LAB19-CP03'; targetId = [string]$target.id; targetType = [string]$target.type; ownership = @{ method = [string]$target.ownership.method; verified = [bool]$verifiedOwnershipById[[string]$target.id] }; status = $(if ($alreadyAbsent) { 'skipped' } else { 'preview' }); message = $(if ($alreadyAbsent) { 'The exact manifest ID was already absent; idempotent cleanup recorded the safe end state.' } elseif ($Execute) { 'Pending removal through the dependency-safe ownership boundary.' } else { 'Would remove this exact manifest-recorded target.' }) })
}
$state.updatedAt = (Get-Date).ToUniversalTime().ToString('o')
$state | ConvertTo-Json -Depth 30 | Set-Content -LiteralPath $Manifest -Encoding utf8
# CHECKPOINT LAB19-CP03 END

# CHECKPOINT LAB19-CP02 BEGIN
$targets = @($state.managedObjects | Where-Object { $_.checkpointId -eq 'LAB19-CP02' -and $_.lifecycleStatus -eq 'active' })
foreach ($target in $targets) {
    $alreadyAbsent = $absentIds.Contains([string]$target.id)
    $actions.Add(@{ checkpointId = 'LAB19-CP02'; targetId = [string]$target.id; targetType = [string]$target.type; ownership = @{ method = [string]$target.ownership.method; verified = [bool]$verifiedOwnershipById[[string]$target.id] }; status = $(if ($alreadyAbsent) { 'skipped' } else { 'preview' }); message = $(if ($alreadyAbsent) { 'The exact manifest ID was already absent; idempotent cleanup recorded the safe end state.' } elseif ($Execute) { 'Pending removal through the dependency-safe ownership boundary.' } else { 'Would remove this exact manifest-recorded target.' }) })
}
$state.updatedAt = (Get-Date).ToUniversalTime().ToString('o')
$state | ConvertTo-Json -Depth 30 | Set-Content -LiteralPath $Manifest -Encoding utf8
# CHECKPOINT LAB19-CP02 END

# CHECKPOINT LAB19-CP01 BEGIN
$targets = @($state.managedObjects | Where-Object { $_.checkpointId -eq 'LAB19-CP01' -and $_.lifecycleStatus -eq 'active' })
foreach ($target in $targets) {
    $alreadyAbsent = $absentIds.Contains([string]$target.id)
    $actions.Add(@{ checkpointId = 'LAB19-CP01'; targetId = [string]$target.id; targetType = [string]$target.type; ownership = @{ method = [string]$target.ownership.method; verified = [bool]$verifiedOwnershipById[[string]$target.id] }; status = $(if ($alreadyAbsent) { 'skipped' } else { 'preview' }); message = $(if ($alreadyAbsent) { 'The exact manifest ID was already absent; idempotent cleanup recorded the safe end state.' } elseif ($Execute) { 'Pending removal through the dependency-safe ownership boundary.' } else { 'Would remove this exact manifest-recorded target.' }) })
}
$state.updatedAt = (Get-Date).ToUniversalTime().ToString('o')
$state | ConvertTo-Json -Depth 30 | Set-Content -LiteralPath $Manifest -Encoding utf8
# CHECKPOINT LAB19-CP01 END

$cleanupFailure = $null
if ($Execute) {
    $PSNativeCommandUseErrorActionPreference = $true
    $state.status = 'cleanup-in-progress'
    $state.updatedAt = (Get-Date).ToUniversalTime().ToString('o')
    $state | ConvertTo-Json -Depth 30 | Set-Content -LiteralPath $Manifest -Encoding utf8

    try {
        # Restore shared or tenant-wide settings before removing the disposable
        # objects that were used to exercise them.
        foreach ($setting in @($state.originalSettings)) {
            if ($setting.targetId -eq 'authorizationPolicy' -and $setting.property -eq 'allowedToUseSSPR') {
                $restoreBody = @{ allowedToUseSSPR = [bool]$setting.value } | ConvertTo-Json -Compress
                az rest --method patch --url 'https://graph.microsoft.com/v1.0/policies/authorizationPolicy' --headers 'Content-Type=application/json' --body $restoreBody --output none
                $restored = az rest --method get --url 'https://graph.microsoft.com/v1.0/policies/authorizationPolicy?$select=allowedToUseSSPR' --query allowedToUseSSPR --output tsv
                if ([bool]::Parse([string]$restored) -ne [bool]$setting.value) {
                    throw 'Cleanup stopped because authorizationPolicy.allowedToUseSSPR was not restored.'
                }
            }
        }
        foreach ($object in @($active | Where-Object { $_.type -eq 'Microsoft.Management/managementGroups' -and -not $absentIds.Contains([string]$_.id) })) {
            az account management-group delete --name $object.name --output none
        }
        $hasLiveManagedTarget = @($active | Where-Object { -not $absentIds.Contains([string]$_.id) }).Count -gt 0
        if ($hasLiveManagedTarget) {

        }
        foreach ($groupToDelete in @($resourceGroupObjects | Where-Object { -not $absentIds.Contains([string]$_.id) })) {
            az group delete --ids $groupToDelete.id --yes
        }
        foreach ($object in @($active | Where-Object { $_.kind -eq 'entra-object' -and -not $absentIds.Contains([string]$_.id) })) {
            $collection = switch ([string]$object.type) {
                'Microsoft.Graph/user' { 'users' }
                'Microsoft.Graph/group' { 'groups' }
                default { 'directoryObjects' }
            }
            az rest --method delete --url "https://graph.microsoft.com/v1.0/$collection/$($object.id)" --output none 2>$null
        }
        foreach ($object in $state.managedObjects) {
            $object.lifecycleStatus = 'deleted'
        }
        foreach ($action in $actions) {
            if ($action.status -eq 'skipped') { continue }
            $action.status = 'deleted'
            $action.message = 'The exact manifest-recorded target was removed through its ownership boundary.'
        }
    } catch {
        $cleanupFailure = "Cleanup mutation failed: $($_.Exception.GetType().Name)"
        foreach ($action in $actions) {
            if ($action.status -eq 'preview') {
                $action.status = 'failed'
                $action.message = $cleanupFailure
            }
        }
    }
}

$PSNativeCommandUseErrorActionPreference = $false
$remaining = [System.Collections.Generic.List[string]]::new()
foreach ($object in $state.managedObjects) {
    if (-not $Execute -and $object.lifecycleStatus -eq 'active') { $remaining.Add([string]$object.id); continue }
    if ($Execute -and $object.type -eq 'Microsoft.Management/managementGroups') {
        $null = az account management-group show --name $object.name --output none 2>$null
        if ($LASTEXITCODE -eq 0) { $remaining.Add([string]$object.id) }
    } elseif ($Execute -and $object.type -eq 'Microsoft.Resources/resourceGroups') {
        $groupExists = az group exists --subscription $SubscriptionId --name $object.name --output tsv 2>$null
        if ($LASTEXITCODE -ne 0 -or $groupExists -ne 'false') { $remaining.Add([string]$object.id) }
    } elseif ($Execute -and $object.kind -eq 'azure-resource') {
        $null = az resource show --ids $object.id --output none 2>$null
        if ($LASTEXITCODE -eq 0) {
            $remaining.Add([string]$object.id)
        } elseif ($object.type -eq 'Microsoft.RecoveryServices/vaults' -and $false) {
            $deletedVault = az backup deleted-vault get --location $Location --name $object.name --output json 2>$null
            if ($LASTEXITCODE -eq 0 -and $deletedVault) {
                $object.lifecycleStatus = 'soft-deleted'
                foreach ($action in @($actions | Where-Object { [string]$_.targetId -eq [string]$object.id -and $_.status -ne 'skipped' })) {
                    $action.status = 'soft-deleted'
                    $action.message = 'The active ARM vault is absent and the exact recoverable deleted-vault record was confirmed; no purge was performed.'
                }
            } else {
                $remaining.Add([string]$object.id)
            }
        }
    } elseif ($Execute -and $object.kind -eq 'entra-object') {
        $null = az rest --method get --url "https://graph.microsoft.com/v1.0/directoryObjects/$($object.id)" --output none 2>$null
        if ($LASTEXITCODE -eq 0) { $remaining.Add([string]$object.id) }
    }
}
$residualChecks.Clear()
$checkpointRemaining = @($remaining | Where-Object { $_ -in @($state.managedObjects | Where-Object { $_.checkpointId -eq 'LAB19-CP01' } | ForEach-Object id) }); $residualChecks.Add(@{ id = 'cp01.residual'; command = 'query manifest-recorded IDs for LAB19-CP01'; expected = 'zero active objects for LAB19-CP01'; actual = "active=$($checkpointRemaining.Count)"; status = $(if ($Execute -and $checkpointRemaining.Count -eq 0) { 'pass' } elseif (-not $Execute) { 'skipped' } else { 'fail' }) })
$checkpointRemaining = @($remaining | Where-Object { $_ -in @($state.managedObjects | Where-Object { $_.checkpointId -eq 'LAB19-CP02' } | ForEach-Object id) }); $residualChecks.Add(@{ id = 'cp02.residual'; command = 'query manifest-recorded IDs for LAB19-CP02'; expected = 'zero active objects for LAB19-CP02'; actual = "active=$($checkpointRemaining.Count)"; status = $(if ($Execute -and $checkpointRemaining.Count -eq 0) { 'pass' } elseif (-not $Execute) { 'skipped' } else { 'fail' }) })
$checkpointRemaining = @($remaining | Where-Object { $_ -in @($state.managedObjects | Where-Object { $_.checkpointId -eq 'LAB19-CP03' } | ForEach-Object id) }); $residualChecks.Add(@{ id = 'cp03.residual'; command = 'query manifest-recorded IDs for LAB19-CP03'; expected = 'zero active objects for LAB19-CP03'; actual = "active=$($checkpointRemaining.Count)"; status = $(if ($Execute -and $checkpointRemaining.Count -eq 0) { 'pass' } elseif (-not $Execute) { 'skipped' } else { 'fail' }) })
$checkpointRemaining = @($remaining | Where-Object { $_ -in @($state.managedObjects | Where-Object { $_.checkpointId -eq 'LAB19-CP04' } | ForEach-Object id) }); $residualChecks.Add(@{ id = 'cp04.residual'; command = 'query manifest-recorded IDs for LAB19-CP04'; expected = 'zero active objects for LAB19-CP04'; actual = "active=$($checkpointRemaining.Count)"; status = $(if ($Execute -and $checkpointRemaining.Count -eq 0) { 'pass' } elseif (-not $Execute) { 'skipped' } else { 'fail' }) })
$checkpointRemaining = @($remaining | Where-Object { $_ -in @($state.managedObjects | Where-Object { $_.checkpointId -eq 'LAB19-CP05' } | ForEach-Object id) }); $residualChecks.Add(@{ id = 'cp05.residual'; command = 'query manifest-recorded IDs for LAB19-CP05'; expected = 'zero active objects for LAB19-CP05'; actual = "active=$($checkpointRemaining.Count)"; status = $(if ($Execute -and $checkpointRemaining.Count -eq 0) { 'pass' } elseif (-not $Execute) { 'skipped' } else { 'fail' }) })
if ($Execute -and $remaining.Count -gt 0) {
    foreach ($object in $state.managedObjects) {
        if ([string]$object.id -in @($remaining)) { $object.lifecycleStatus = 'active' }
    }
    foreach ($action in $actions) {
        if ([string]$action.targetId -in @($remaining) -and $action.status -ne 'skipped') {
            $action.status = 'failed'
            $action.message = 'Residual query found the target still active after cleanup.'
        }
    }
}
$result = if (-not $Execute) { 'preview' } elseif ($cleanupFailure -or $remaining.Count -gt 0) { 'fail' } else { 'pass' }
$cleanup = @{
    schemaVersion = '1.0.0'
    labId = 'LAB-19'
    runId = $RunId
    generatedAt = (Get-Date).ToUniversalTime().ToString('o')
    executionMode = $(if ($Execute) { 'execute' } else { 'preview' })
    result = $result
    ownershipVerified = $ownershipVerified
    actions = @($actions)
    residualChecks = @($residualChecks)
    activeManagedObjects = @($remaining)
    retainedItems = @(

    )
}
$cleanup | ConvertTo-Json -Depth 30 | Set-Content -LiteralPath $CleanupPath -Encoding utf8
if ($Execute) {
    if ($result -eq 'pass') { $state.status = 'cleaned' }
    $state.updatedAt = (Get-Date).ToUniversalTime().ToString('o')
    $state | ConvertTo-Json -Depth 30 | Set-Content -LiteralPath $Manifest -Encoding utf8
}
Write-Host "Cleanup result: $result"
Write-Host "Artifact: $CleanupPath"
Write-Host 'Irreversible purge is never automated; retained or soft-deleted items must be documented explicitly.'
if ($result -eq 'fail') { exit 1 }
# END GENERATED AZ104 V2

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