use-classes-2.ps1

class Cluster {
    [ValidatePattern("^[A-z]+$")]
    [string] $Service
    [ValidateSet("TEST", "STAGE", "CANARY", "PROD")]
    [string] $FlightingRing
    [ValidateSet("EastUS", "WestUS", "NorthEurope")]
    [string] $Region
    [ValidateRange(0, 255)]
    [int] $Index

    Cluster([string] $id) {
        $this.Service, $this.FlightingRing, $this.Region, $this.Index = $id -split "-"
    }
}

[Cluster]"MyService-PROD-EastUS-2"

Apparently the github UI makes submitting a pull request hard for gist's...so the line:

$this.Service, $this.FlightingRing, $this.Region, $this.Index -split "-"

should be

$this.Service, $this.FlightingRing, $this.Region, $this.Index = $id -split "-"

Thanks!

you're welcome...your article on POSH classes was very helpful in my efforts at work yesterday.