Private/Legacy-Bicep/Add-AvailabilityZonesBicepParameters.ps1
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function Add-AvailabilityZonesBicepParameter { [CmdletBinding(SupportsShouldProcess = $true)] param ( [Parameter(Mandatory = $true)] [Alias("Output")] [Alias("OutputDirectory")] [Alias("O")] [string] $alzEnvironmentDestination, [Parameter(Mandatory = $true)] [PSCustomObject]$zonesSupport ) $parametersConfig = @( [pscustomobject]@{ source = "hubNetworking.parameters.all.json"; parameters = @( "parAzErGatewayAvailabilityZones.value", "parAzVpnGatewayAvailabilityZones.value", "parAzFirewallAvailabilityZones.value" ) } [pscustomobject]@{ source = "vwanConnectivity.parameters.all.json"; parameters = @("parVirtualWanHubs.value[0].parAzFirewallAvailabilityZones") } ) foreach ($parametersFile in $parametersConfig) { $parametersFilePath = Join-Path -Path $alzEnvironmentDestination "config\custom-parameters\$($parametersFile.source)" if(!(Test-Path -Path $parametersFilePath)) { Write-Verbose -Message "The file $parametersFilePath does not exist, so skipping it..." continue } $parametersFileJsonContent = Get-Content -Path $parametersFilePath -Raw $bicepConfiguration = $parametersFileJsonContent | ConvertFrom-Json -AsHashtable $region = $bicepConfiguration.parameters.parLocation.value $zones = ($zonesSupport | Where-Object { $_.region -eq $region }).zones $parametersFile.parameters | ForEach-Object { $target = $_ Write-Verbose "Attempting to update $($target) in $($parametersFile.source) with '$($zones)'" # Find the appropriate item which will be changed in the Bicep file. # Remove array '[' ']' characters so we can use the index value direct. $propertyNames = $target.Replace("[", ".").Replace("]", "").Replace("..", ".") -split "\." $bicepConfigNode = $bicepConfiguration.parameters $index = 0 # Keep navigating into properties which the configuration specifies until we reach the bottom most object, # e.g. not a value type - but the object reference so the value is persisted. do { if ($bicepConfigNode -is [array]) { # If this is an array - use the property as an array index... if ($propertyNames[$index] -match "[0-9]+" -eq $false) { throw "Configuration specifies an array, but the index value '${$propertyNames[$index]}' is not a number" } $bicepConfigNode = $bicepConfigNode[$propertyNames[$index]] } elseif ($bicepConfigNode.ContainsKey($propertyNames[$index]) -eq $true) { # We found the item, keep indexing into the object. $bicepConfigNode = $bicepConfigNode[$propertyNames[$index]] } else { # This property doesn't exist at this level in the hierarchy, # this isn't the property we're looking for, stop looking. $bicepConfigNode = $null } ++$index } while (($null -ne $bicepConfigNode) -and ($index -lt $propertyNames.Length - 1)) # If we're here, we can modify this file and we've got an actual object specified by the Name path value - and we can modify values on it. if ($null -ne $bicepConfigNode) { $leafPropertyName = $propertyNames[-1] Write-Verbose "Attempting to update $($target) in $($parametersFile.source) with '$($zones)'" $bicepConfigNode[$leafPropertyName] = $zones } } Write-Verbose "Updating Bicep parameter file: $parametersFilePath" ConvertTo-Json $bicepConfiguration -Depth 10 | Out-File $parametersFilePath } } |