Autoscale Settings

vmss {
    name "my-vmss"
    vm_profile (
        vm {
            vm_size Vm.Standard_B1s
            username "azureuser"
            operating_system Vm.UbuntuServer_2204LTS
            os_disk 30 Vm.Premium_LRS
            no_data_disk
            custom_script "apt update && apt install -y stress"
        }
    )
    autoscale (
        autoscaleSettings {
            name "my-vmss-autoscale"
            properties (
                autoscaleSettingsProperties {
                    profiles [
                        autoscaleProfile {
                            capacity (
                                autoscaleCapacity {
                                    maximum 10
                                }
                            )
                            rules [ // Two rules, one for scaling out and one for scaling in.
                                autoscaleRule { // Scale up with CPU > 60 across the scale set
                                    metric_trigger (
                                        autoscaleMetricTrigger {
                                            metric_name "Percentage CPU"
                                            divide_per_instance true
                                            operator MetricTriggerOperator.GreaterThan
                                            statistic MetricTriggerStatistic.Average
                                            threshold 60
                                            time_aggregation MetricTriggerTimeAggregation.Average
                                            time_grain (TimeSpan.FromMinutes 5)
                                            time_window (TimeSpan.FromMinutes 10)
                                        }
                                    )
                                    scale_action (
                                        scaleAction {
                                            cooldown (TimeSpan.FromMinutes 10)
                                            direction ScaleActionDirection.Increase
                                            action_type ScaleActionType.ChangeCount
                                            value 2
                                        }
                                    )
                                }
                                autoscaleRule { // Scale down with CPU < 20 across the scale set
                                    metric_trigger (
                                        autoscaleMetricTrigger { // Leaving most defaults
                                            metric_name "Percentage CPU"
                                            divide_per_instance true
                                            operator MetricTriggerOperator.LessThan
                                            threshold 20
                                        }
                                    )
                                    scale_action (
                                        scaleAction { // Leaving most defaults
                                            direction ScaleActionDirection.Decrease
                                        }
                                    )
                                }
                            ]
                        }
                    ]
                }
            )
        }
    )
}