Azure vmss rolling upgrade Sep 20, 2025 · The upgrade policy mode you choose can impact the overall service uptime of your Virtual Machine Scale Set. The available upgrade policy modes are: automatic, manual, and rolling. A 在应用程序的整个生命周期内，你可能需要修改或更新你的虚拟机规模集。 这些更新可能包括更新规模集的配置，或更改应用程序配置。 本文介绍如何使用 PowerShell 修改现有的规模集。 Oct 10, 2025 · The upgrade policy mode you choose can impact the overall service uptime of your Virtual Machine Scale Set. If using a rolling upgrade policy mode, see configure rolling upgrade policy for more configuration options and suggestions. This article describes how you can use the two types of Apr 25, 2023 · The commands will return the JSON format with the updated settings, but it does not immediately affect in azure portal. In the menu under Settings, select Upgrade Policy and from the drop-down menu, select Rolling - Upgrades roll out in batches with optional pause. This article describes how to modify an existing scale set with the REST APIs, Azure PowerShell, or Azure CLI. These custom metrics can be used to tell the scale set the order in which virtual machines should be updated when a rolling upgrade is triggered. Start a rolling upgrade to move all virtual machine scale set instances to the latest available Platform Image OS version. Nov 19, 2024 · Available Now Rolling upgrades with MaxSurge is available in all public Azure regions. Nov 19, 2024 · During the Virtual Machine Scale Set creation in the Azure portal, under the Management tab, set the upgrade policy to Rolling, Automatic, or Manual. Mar 21, 2025 · Using a rolling upgrade policy is the safest way to apply updates to instances in a Virtual Machine Scale Set. Apr 1, 2025 · Learn more about Compute service - Gets the status of the latest virtual machine scale set rolling upgrade. Learn more about MaxSurge rolling upgrades for Virtual Machine Scale Sets. Jul 10, 2025 · 使用 az vmss update 和 --upgrade-policy-mode 参数更新现有虚拟机规模集。 使用 Update-AzVmss 和 -UpgradePolicyMode 更新现有虚拟机规模集以设置升级策略模式。 使用升级策略模式更新 ARM 模板的属性部分。 Custom metrics for rolling upgrades enables you to utilize the application health extension to emit custom metrics to your Virtual Machine Scale Set. If your scale set is set to manual upgrades, you can trigger a manual upgrade using Update-AzVmss. Nov 7, 2024 · Portal Select the Virtual Machine Scale Set you want to change the upgrade policy mode for. Monitoring your application health is an important signal for managing and upgrading your deployment. The custom metrics can also inform your scale set when an upgrade should be skipped on a specific Apr 18, 2025 · Throughout the lifecycle of your applications, you may need to modify or update your Virtual Machine Scale Set. Update an existing Virtual Machine Scale Set using az vmss update. Below, we declare environment variables that will be used throughout this document. Custom metrics for rolling upgrades enables you to utilize the application health extension to emit custom metrics to your Virtual Machine Scale Set. Alternatively, for existing Virtual Machine Scale Sets, select the Virtual Machine Scale Set you want to change the upgrade policy for. Mar 24, 2025 · In the menu under Settings, select Upgrade Policy and from the drop-down menu, select Rolling - Upgrades roll out in batches with optional pause. Azure Virtual Machine Scale Sets provide support for Rolling Upgrades including Automatic OS-Image Upgrades and Automatic VM Guest Patching, which rely on health monitoring of the individual instances to upgrade your deployment. Rolling upgrade policy is best suited for production workloads. In the menu under Settings, select Upgrade Policy and from the drop-down menu, select the upgrade policy mode you want to enable. Throughout the lifecycle of your applications, you may need to modify or update your Virtual Machine Scale Set. This article describes how to modify an existing scale set using the Azure CLI. The custom metrics can also inform your scale set when an upgrade should be skipped on a specific . In order to update the upgrade policy values, update the VMSS settings using the Update-AzVmss cmdlet after modifying the RollingUpgradePolicy settings. Rolling - In this mode, the scale set rolls out the update in batches with an optional pause time between batches. Manual - In this mode, when you update the scale set model, nothing happens to existing VMs until a manual update is triggered. These updates may include how to update the configuration of the scale set, or change the application configuration. Nov 19, 2024 · If using a rolling upgrade policy mode, see configure rolling upgrade policy mode for configuration settings and suggestions. When creating a new scale set using Azure CLI, use az vmss create and the -upgrade-policy-mode to set the upgrade policy mode. Performing updates in batches ensures that your scale set maintains a set number of instances available to take traffic, meaning you don't need to take down your entire workload to make a change. Instances which are already running the latest available OS version are not affected. follow the the MS Doc on updating the VMSS settings. voofctlb qztiu rnt utswa cgeij bvbbqw itftd ztpviexx uqzr tegag xiwhthb ljg bviskj zre tjpb