Powershell: Manipulate a Json Configuration File

example.ps1

# read configuration file
$configuration = Get-Content -Raw -Path $parametersFilePath | ConvertFrom-Json

# generate intermediate ARM template parameters file with serialized JSON settings
$armParametersFile = @{
  "`$schema" = "https://schema.management.azure.com/schemas/2015-01-01/deploymentParameters.json#";
  "contentVersion" = "1.0.0.0";
  "parameters" = New-Object psobject;
}

# transform properties with the { Value = "a-value" } subobject required by the arm template
$configuration.ArmParameters.PSObject.Properties | foreach-object { $armParametersFile.parameters | Add-Member -Name $_.Name -Value @{ value = $_.Value } -MemberType NoteProperty }

# serialize LocationSettingsJson and AzureCdnDomainsPostfixJson to json
$locations = ($configuration.Locations | Select-Object -ExpandProperty Settings)
$armParametersFile.parameters | Add-Member -Name "LocationSettingsJson" -Value @{ value = (ConvertTo-Json $locations -Compress) } -MemberType NoteProperty
$armParametersFile.parameters | Add-Member -Name "AzureCdnDomainsPostfixJson" -Value @{ value = (ConvertTo-Json $configuration.AzureCdnDomainsPostfix -Compress) } -MemberType NoteProperty

# save arm template parameters file
$armParametersFile | ConvertTo-Json -depth 10 | Set-Content $parametersTempFilePath

# sign in