ContainerInfo/Get-NavContainerPlatformVersion.ps1

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<#
 .Synopsis
  Get the platform version of Business Central in a Nav container or a Nav container image
  The function will return blank for Dynamics-Nav Containers
 .Description
  Returns the platform version of Business Central in the format major.minor.build.release
 .Parameter containerOrImageName
  Name of the container or container image for which you want to get the platform version
 .Example
  Get-NavContainerPlatformVersion -containerOrImageName navserver
 .Example
  Get-NavContainerPlatformVersion -containerOrImageName mcr.microsoft.com/businesscentral/onprem:dk
#>

function Get-NavContainerPlatformVersion {
    [CmdletBinding()]
    Param
    (
        [Parameter(Mandatory=$true)]
        [string]$containerOrImageName
    )

    Process {
        $inspect = docker inspect $containerOrImageName | ConvertFrom-Json
        if ($inspect.Config.Labels.psobject.Properties.Match('nav').Count -eq 0) {
            throw "Container $containerOrImageName is not a NAV container"
        }
        if ($inspect.Config.Labels.psobject.Properties.Match('platform').Count -eq 0) {
            return ""
        } else {
            return "$($inspect.Config.Labels.platform)"
        }
    }
}
Export-ModuleMember -function Get-NavContainerPlatformVersion