Examples of updating machine roles using Octoposh

RolesExamples.ps1

## 1) Updating a Machine's roles

#getting the machine
$machine = Get-OctopusMachine -MachineName "MyMachine" 

#updating the machine's roles
$machine.resource.roles.add("NewRoleToAdd")
$machine.resource.roles.Remove("OldRoleToRemove")

#Saving the machine resource on the database
Update-OctopusResource -Resource $machine.resource

## 2) Updating the roles of a group of machines

#Getting all the machines inside of an Environment
$EnvMachines = Get-OctopusMachine -EnvironmentName Development

#Looping through all the machines and changing their roles
foreach ($machine in $EnvMachines){
    
    $machine.resource.roles.add("NewRoleToAdd") #adding a role
    $machine.resource.roles.Remove("OldRoleToRemove") #removing a role
}

#updating all machines at once
Update-OctopusResource -Resource $EnvMachines.resource -Force