functions/Deploy-PolicyPlan.ps1
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function Deploy-PolicyPlan { [CmdletBinding()] param ( [parameter( HelpMessage = "Defines which Policy as Code (PAC) environment we are using, if omitted, the script prompts for a value. The values are read from `$DefinitionsRootFolder/global-settings.jsonc.", Position = 0 )] [string] $pacEnvironmentSelector, [Parameter(HelpMessage = "Definitions folder path. Defaults to environment variable `$env:PAC_DEFINITIONS_FOLDER or './Definitions'.")] [string]$definitionsRootFolder, [Parameter(HelpMessage = "Input folder path for plan files. Defaults to environment variable `$env:PAC_INPUT_FOLDER, `$env:PAC_OUTPUT_FOLDER or './Output'.")] [string] $inputFolder, [Parameter(HelpMessage = "Use switch to indicate interactive use")] [switch] $interactive ) $PSDefaultParameterValues = @{ "Write-Information:InformationVariable" = "+global:epacInfoStream" } Clear-Variable -Name epacInfoStream -Scope global -Force -ErrorAction SilentlyContinue # Dot Source Helper Scripts $InformationPreference = "Continue" $pacEnvironment = Select-PacEnvironment $pacEnvironmentSelector -definitionsRootFolder $DefinitionsRootFolder -inputFolder $inputFolder -interactive $interactive Set-AzCloudTenantSubscription -cloud $pacEnvironment.cloud -tenantId $pacEnvironment.tenantId -interactive $pacEnvironment.interactive $planFile = $pacEnvironment.policyPlanInputFile $plan = Get-DeploymentPlan -planFile $planFile if ($null -eq $plan) { Write-Warning "***************************************************************************************************" Write-Warning "Plan does not exist, skipping Policy resource deployment." Write-Warning "***************************************************************************************************" Write-Warning "" } else { Write-Information "***************************************************************************************************" Write-Information "Deploy Policy resources from plan in file '$planFile'" Write-Information "Plan created on $($plan.createdOn)." Write-Information "***************************************************************************************************" [hashtable] $newAssignments = ConvertTo-HashTable $plan.assignments.new [hashtable] $replaceAssignments = ConvertTo-HashTable $plan.assignments.replace [hashtable] $updateAssignments = ConvertTo-HashTable $plan.assignments.update #region delete exemptions, assignment, definitions $exemptions = ConvertTo-HashTable $plan.exemptions.delete if ($exemptions.psbase.Count -gt 0) { Write-Information "" Write-Information "===================================================================================================" Write-Information "Delete orphaned, deleted, and expired Exemptions ($($exemptions.psbase.Count))" Write-Information "---------------------------------------------------------------------------------------------------" foreach ($id in $exemptions.Keys) { $exemption = $exemptions[$id] Write-Information $exemption.displayName $null = Remove-AzPolicyExemption -Id $id -Force -ErrorAction Continue } } $exemptions = ConvertTo-HashTable $plan.exemptions.replace if ($exemptions.psbase.Count -gt 0) { Write-Information "" Write-Information "===================================================================================================" Write-Information "Delete replaced Exemptions ($($exemptions.psbase.Count))" Write-Information "---------------------------------------------------------------------------------------------------" foreach ($id in $exemptions.Keys) { $exemption = $exemptions[$id] Write-Information $exemption.displayName $null = Remove-AzPolicyExemption -Id $id -Force } } $assignments = ConvertTo-HashTable $plan.assignments.delete if ($assignments.psbase.Count -gt 0) { Write-Information "" Write-Information "===================================================================================================" Write-Information "Delete removed Assignments ($($assignments.psbase.Count))" Write-Information "---------------------------------------------------------------------------------------------------" foreach ($id in $assignments.Keys) { $assignment = $assignments[$id] Write-Information $assignment.displayName $null = Remove-AzPolicyAssignment -Id $id } } $assignments = $replaceAssignments if ($assignments.psbase.Count -gt 0) { Write-Information "" Write-Information "===================================================================================================" Write-Information "Delete replaced Assignments ($($assignments.psbase.Count))" Write-Information "---------------------------------------------------------------------------------------------------" foreach ($id in $assignments.Keys) { $assignment = $assignments[$id] Write-Information $assignment.displayName $null = Remove-AzPolicyAssignment -Id $id } } $policySetDefinitions = ConvertTo-HashTable $plan.policySetDefinitions.delete if ($policySetDefinitions.psbase.Count -gt 0) { Write-Information "" Write-Information "===================================================================================================" Write-Information "Delete removed Policy Sets ($($policySetDefinitions.psbase.Count))" Write-Information "---------------------------------------------------------------------------------------------------" foreach ($id in $policySetDefinitions.Keys) { $policySetDefinition = $policySetDefinitions[$id] Write-Information $policySetDefinition.displayName $null = Remove-AzPolicySetDefinition -Id $id -Force } } $policySetDefinitions = ConvertTo-HashTable $plan.policySetDefinitions.replace if ($policySetDefinitions.psbase.Count -gt 0) { Write-Information "" Write-Information "===================================================================================================" Write-Information "Delete replaced Policy Sets ($($policySetDefinitions.psbase.Count))" Write-Information "---------------------------------------------------------------------------------------------------" foreach ($id in $policySetDefinitions.Keys) { $policySetDefinition = $policySetDefinitions[$id] Write-Information $policySetDefinition.displayName $null = Remove-AzPolicySetDefinition -Id $id -Force } } $policyDefinitions = ConvertTo-HashTable $plan.policyDefinitions.replace if ($policyDefinitions.psbase.Count -gt 0) { Write-Information "" Write-Information "===================================================================================================" Write-Information "Delete replaced Policies ($($policyDefinitions.psbase.Count))" Write-Information "---------------------------------------------------------------------------------------------------" foreach ($id in $policyDefinitions.Keys) { $policyDefinition = $policyDefinitions[$id] Write-Information $policyDefinition.displayName $null = Remove-AzPolicyDefinition -Id $id -Force } } #endregion #region create and update definitions $policyDefinitions = ConvertTo-HashTable $plan.policyDefinitions.new if ($policyDefinitions.psbase.Count -gt 0) { Write-Information "" Write-Information "===================================================================================================" Write-Information "Create new Policies ($($policyDefinitions.psbase.Count))" Write-Information "---------------------------------------------------------------------------------------------------" foreach ($id in $policyDefinitions.Keys) { $definitionObj = $policyDefinitions[$id] $null = Set-AzPolicyDefinitionRestMethod -definition $definitionObj } } $policyDefinitions = ConvertTo-HashTable $plan.policyDefinitions.replace if ($policyDefinitions.psbase.Count -gt 0) { Write-Information "" Write-Information "===================================================================================================" Write-Information "Recreate replaced Policies ($($policyDefinitions.psbase.Count))" Write-Information "---------------------------------------------------------------------------------------------------" foreach ($id in $policyDefinitions.Keys) { $definitionObj = $policyDefinitions[$id] $null = Set-AzPolicyDefinitionRestMethod -definition $definitionObj } } $policyDefinitions = ConvertTo-HashTable $plan.policyDefinitions.update if ($policyDefinitions.psbase.Count -gt 0) { Write-Information "" Write-Information "===================================================================================================" Write-Information "Update Policies ($($policyDefinitions.psbase.Count))" Write-Information "---------------------------------------------------------------------------------------------------" foreach ($id in $policyDefinitions.Keys) { $definitionObj = $policyDefinitions[$id] $null = Set-AzPolicyDefinitionRestMethod -definition $definitionObj } } $policySetDefinitions = ConvertTo-HashTable $plan.policySetDefinitions.new if ($policySetDefinitions.psbase.Count -gt 0) { Write-Information "" Write-Information "===================================================================================================" Write-Information "Create new Policy Sets ($($policySetDefinitions.psbase.Count))" Write-Information "---------------------------------------------------------------------------------------------------" foreach ($id in $policySetDefinitions.Keys) { $definitionObj = $policySetDefinitions[$id] $null = Set-AzPolicySetDefinitionRestMethod -definition $definitionObj } } $policySetDefinitions = ConvertTo-HashTable $plan.policySetDefinitions.replace if ($policySetDefinitions.psbase.Count -gt 0) { Write-Information "" Write-Information "===================================================================================================" Write-Information "Recreate replaced Policy Sets ($($policySetDefinitions.psbase.Count))" Write-Information "---------------------------------------------------------------------------------------------------" foreach ($id in $policySetDefinitions.Keys) { $definitionObj = $policySetDefinitions[$id] $null = Set-AzPolicySetDefinitionRestMethod -definition $definitionObj } } $policySetDefinitions = ConvertTo-HashTable $plan.policySetDefinitions.update if ($policySetDefinitions.psbase.Count -gt 0) { Write-Information "" Write-Information "===================================================================================================" Write-Information "Update Policy Sets ($($policySetDefinitions.psbase.Count))" Write-Information "---------------------------------------------------------------------------------------------------" foreach ($id in $policySetDefinitions.Keys) { $definitionObj = $policySetDefinitions[$id] $null = Set-AzPolicySetDefinitionRestMethod -definition $definitionObj } } # Policy Sets are updated, can now delete the obsolete Policies $policyDefinitions = ConvertTo-HashTable $plan.policyDefinitions.delete if ($policyDefinitions.psbase.Count -gt 0) { Write-Information "" Write-Information "===================================================================================================" Write-Information "Delete Policies ($($policyDefinitions.psbase.Count))" Write-Information "---------------------------------------------------------------------------------------------------" foreach ($policyDefinitionName in $policyDefinitions.Keys) { $policyDefinition = $policyDefinitions[$policyDefinitionName] Write-Information $policyDefinition.displayName $null = Remove-AzPolicyDefinition -Id $policyDefinition.id -Force } } #endregion #region create and update assignments if ($newAssignments.psbase.Count -gt 0) { Write-Information "" Write-Information "===================================================================================================" Write-Information "Create new Assignments ($($newAssignments.psbase.Count))" Write-Information "---------------------------------------------------------------------------------------------------" $currentDisplayName = "-" $newAssignments.Values | Sort-Object -Property { $_.displayName } | ForEach-Object -Process { $currentDisplayName = Set-AzPolicyAssignmentRestMethod -assignment $_ -currentDisplayName $currentDisplayName } } if ($replaceAssignments.psbase.Count -gt 0) { Write-Information "" Write-Information "===================================================================================================" Write-Information "Recreate replaced Assignments ($($replaceAssignments.psbase.Count))" Write-Information "---------------------------------------------------------------------------------------------------" $currentDisplayName = "-" $replaceAssignments.Values | Sort-Object -Property { $_.displayName } | ForEach-Object -Process { $currentDisplayName = Set-AzPolicyAssignmentRestMethod -assignment $_ -currentDisplayName $currentDisplayName } } if ($updateAssignments.psbase.Count -gt 0) { Write-Information "" Write-Information "===================================================================================================" Write-Information "Update Assignments ($($updateAssignments.psbase.Count))" Write-Information "---------------------------------------------------------------------------------------------------" $currentDisplayName = "-" $updateAssignments.Values | Sort-Object -Property { $_.displayName } | ForEach-Object -Process { $currentDisplayName = Set-AzPolicyAssignmentRestMethod -assignment $_ -currentDisplayName $currentDisplayName } } #endregion #region Exemptions $exemptions = ConvertTo-HashTable $plan.exemptions.new if ($exemptions.psbase.Count -gt 0) { Write-Information "" Write-Information "===================================================================================================" Write-Information "Create new Exemptions ($($exemptions.psbase.Count))" Write-Information "---------------------------------------------------------------------------------------------------" $splatTransform = "name/Name scope/Scope displayName/DisplayName description/Description metadata/Metadata exemptionCategory/ExemptionCategory expiresOn/ExpiresOn policyDefinitionReferenceIds/PolicyDefinitionReferenceId" $assignmentsCache = @{} foreach ($exemptionId in $exemptions.Keys) { $exemption = $exemptions.$exemptionId $policyAssignmentId = $exemption.policyAssignmentId $filteredExemption = $exemption | Get-FilteredHashTable -splatTransform $splatTransform Write-Information $exemption.displayName # Need assignment $assignment = $null if ($assignmentsCache.ContainsKey($policyAssignmentId)) { $assignment = $assignmentsCache.$policyAssignmentId } else { # Retrieve Policy Assignment $assignment = Get-AzPolicyAssignment -Id $policyAssignmentId $null = $assignmentsCache.Add($policyAssignmentId, $assignment) } $null = New-AzPolicyExemption @filteredExemption -PolicyAssignment $assignment } } $exemptions = ConvertTo-HashTable $plan.exemptions.replace if ($exemptions.psbase.Count -gt 0) { Write-Information "" Write-Information "===================================================================================================" Write-Information "Create replaced Exemptions ($($exemptions.psbase.Count))" Write-Information "---------------------------------------------------------------------------------------------------" $splatTransform = "name/Name scope/Scope displayName/DisplayName description/Description metadata/Metadata exemptionCategory/ExemptionCategory expiresOn/ExpiresOn policyDefinitionReferenceIds/PolicyDefinitionReferenceId" $assignmentsCache = @{} foreach ($exemptionId in $exemptions.Keys) { $exemption = $exemptions.$exemptionId $policyAssignmentId = $exemption.policyAssignmentId $filteredExemption = $exemption | Get-FilteredHashTable -splatTransform $splatTransform Write-Information $exemption.displayName # Need assignment $assignment = $null if ($assignmentsCache.ContainsKey($policyAssignmentId)) { $assignment = $assignmentsCache.$policyAssignmentId } else { # Retrieve Policy Assignment $assignment = Get-AzPolicyAssignment -Id $policyAssignmentId $null = $assignmentsCache.Add($policyAssignmentId, $assignment) } $null = New-AzPolicyExemption @filteredExemption -PolicyAssignment $assignment } } $exemptions = (ConvertTo-HashTable $plan.exemptions.update) if ($exemptions.psbase.Count -gt 0) { Write-Information "" Write-Information "===================================================================================================" Write-Information "Update Exemptions ($($exemptions.psbase.Count))" Write-Information "---------------------------------------------------------------------------------------------------" foreach ($exemptionId in $exemptions.Keys) { $exemption = $exemptions[$exemptionId] $splatTransform = $exemption.splatTransform $filteredExemption = $exemption | Get-FilteredHashTable -splatTransform $splatTransform Write-Information $exemption.displayName $null = Set-AzPolicyExemption @filteredExemption } } #endregion } } |