public/Convert-Value.ps1
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<# .SYNOPSIS One pass replacement of variables in a file, similar to qetza.replacetokens.replacetokens-task.replacetokens in Azure DevOps .DESCRIPTION This is useful if you have a values.yaml file that has #{variable}# in it, and you want to replace those with values to run locally. .PARAMETER ValuesFile Name of the file to replace variables in .PARAMETER Variables Hashtable of variables to replace, will override VariableFile .PARAMETER VariableFile Yaml file of variables to replace .PARAMETER StartDelimiter Start delimiter for the variable to replace, defaults to #{ .PARAMETER EndDelimiter End delimiter for the variable to replace, defaults to }# .EXAMPLE $newFolder = '~/code/PlatformApi' $oldFolder = '~/temp/PlatformApi' "dev","test","qa","prod","staging","demo" | % { Convert-Value -ValuesFile "$newFolder/DevOps/deploy/helm/api/values.yaml" -VariablesFile "$newFolder/DevOps/deploy/variables/variables-$_.yml" -Variables @{Environment=$_;ImageTag='1.2.3'} > "~/temp/valuesyaml/values-platformapi-$_.yaml" } bc ~/temp/valuesyaml "$oldFolder/Docker/helm/api" Convert using a yaml file, then compare the results .EXAMPLE Convert-Value "~/code/BackendTemplate/DevOps/helm/values.yaml" ` -Variables @{ imageTag = 114090 fullEnvironmentName = "dev" 'cert-password' = $env:cert_password environment = "dev" availabilityZoneLower = "sc" } | Out-File ./new-values.yml Convert using a hashtable of variables .OUTPUTS The file with the variables replaced #> function Convert-Value { [CmdletBinding()] param ( [ValidateScript({ Test-Path $_ -PathType Leaf})] [string] $ValuesFile, [hashtable] $Variables, [string] $VariablesFile, [string] $StartDelimiter = '#{', [string] $EndDelimiter = '}#' ) Set-StrictMode -Version Latest $ErrorActionPreference = 'Stop' if ($VariablesFile) { $fileVariables = (Get-Content $VariablesFile -Raw) | ConvertFrom-Yaml foreach ($v in $fileVariables.variables) { Set-Variable -Name $v.name -Value $v.value } } if ($Variables) { foreach ($k in $Variables.Keys) { Set-Variable -Name $k -Value $Variables[$k] } } $content = (Get-Content $ValuesFile -Raw) -replace "$StartDelimiter([\w-]+)$EndDelimiter", '${$1}' Write-Verbose "Content: $content" $ExecutionContext.InvokeCommand.ExpandString($content) } |