Azure vmss events. This project welcomes contributions and suggestions.
Azure vmss events. You can send logs and A sample nodejs service subscribing to Azure Scheduled Events. Scale sets provide the following key benefits: Easy to create and manage multiple VMs Provides high availability and application resiliency by distributing VMs across Sep 17, 2024 · I am facing an issue with Azure VMSS autoscale notifications (through webbhook) triggering multiple executions of an Azure Function. . Aug 1, 2025 · Virtual Machine related Maintenance notifications are available under Service Health in the Azure portal. For a small subset of Virtual Machine Planned Maintenance specific scenarios, Azure may also communicate the schedule by sending an additional email to the members of Subscription Owners group. A service is run that polls for scheduled events on one of the VMs that act as a collector, to get events for all of the other Aug 5, 2021 · Resource events in event grid could cover the gaps but the delay on the event grid events for VMSS changes seems to be something like 1-2 minutes so its not very useful for what i'm looking to develop. You can also use Application Health Extension to monitor the Jul 7, 2025 · For this example, you need to create a Windows Virtual Machine in an Availability Set. For more information about autoscale metrics, see the Supported metrics document. The termination notification is sent through Azure Metadata Service - Scheduled Events, which provides notifications for and delaying of impactful operations such as reboots and redeploy. Dec 19, 2024 · This article shows how you can use scheduled events to be notified about maintenance events that could affect your VMs and build some basic automation that can help with monitoring and analysis. The project is for Windows Virtual Machines and contains a powershell script that listens and logs the events to Windows Event logs. Jul 10, 2025 · Common Azure CLI commands to manage Virtual Machine Scale Sets, such as how to start and stop an instance, or change the scale set capacity. 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. This project enables your Azure Virtual Machines to subscribe to Scheduled Events which informs your application about upcoming Azure Maintenance. You can try to filter out duplicate notifications in your Azure Function code or modify your autoscale rules to trigger the Azure Function only once per autoscale event. When a VMSS is reimaged, three main events are logged in the Activity Log:… Nov 14, 2024 · In this blog, we will explore different options to reimage a Virtual Machine Scale Set (VMSS) and its instances. Nov 14, 2024 · In this blog, we will explore different options to reimage a Virtual Machine Scale Set (VMSS) and its instances. Mar 9, 2025 · Describes how to collect Windows events counters from virtual machines, Virtual Machine Scale Sets, and Arc-enabled on-premises servers using Azure Monitor Agent. The number of VM instances can automatically increase or decrease in response to demand or a defined schedule. The two categories are: Autoscale Evaluations contain log data relating to rule evaluation. Aug 22, 2024 · Scheduled Events is enabled for your scale set the first time you make a request for events. Scheduled Events provides events in the following use cases: Platform initiated maintenance (for example, VM reboot, live migration or memory preserving updates for host). May 19, 2025 · Scale set instances can opt in to receive instance termination notifications and set a pre-defined delay timeout to the terminate operation. Each VMSS must have Scale In and Scale Out events configured. It provides information about upcoming maintenance events (for example, reboot) so that your application can prepare for them and limit disruption. Aug 22, 2024 · Learn how to use scale-in policies with Azure Virtual Machine Scale Sets that use autoscale configuration to manage instance count Mar 21, 2025 · Azure Virtual Machine Scale Sets let you create and manage a group of load balanced virtual machines (VM) instances. Most contributions require you to agree to a Contributor License Agreement (CLA) declaring that you have the right to, and actually do, grant us the rights to use your contribution Sep 17, 2024 · Your VMSS is sending multiple notifications for the same autoscale event, such as "scale up initiated", "scale up in progress", and "scale up completed". Scheduled Events provide notifications about changes that can affect any of the virtual machines in your availability set, Cloud Service, Virtual Machine Scale Set or standalone VMs. To take advantage of Azure's event-driven capabilities and achieve autoscaling, we can configure Azure VM Scale Sets (VMSS) to dynamically increase or decrease the number of VMs based on specific events. Related command az vmss update --enable-terminate-notification {false, true} az vmss update --additional-events True --enable Oct 17, 2023 · My first idea was to use event grid triggers to trigger azure function based on resource modification on the vmss. Jun 5, 2025 · Scheduled Events is an Azure Metadata Service that gives your application time to prepare for virtual machine (VM) maintenance. 5 days ago · You are here: Scale In and Scale Out Events. Overall, is there a best solution here that i'm missing? An easy way to subscribe to all state change events for instances in a VM scale set? Create a vmss with user assigned identity and add encryption identity for Azure disk encryption Jul 10, 2025 · The goal in having two windows is to give you enough time to start maintenance and reboot your VM while knowing when Azure will automatically start maintenance. Jun 5, 2025 · For information about Scheduled Events on Linux, see Scheduled Events for Linux VMs. Oct 11, 2025 · Ingest syslog messages from linux machines and from network and security devices and appliances to Microsoft Sentinel, using data connectors based on the Azure Monitor Agent (AMA). Regarding your use case of launching multiple VMs in an availability zone, you can create an Event Grid subscription to listen to events from all the VMs in the availability zone. We’ll analyze how the activity logs appear after reimaging a VMSS or when reimaging individual instances. Jul 28, 2025 · Learn about node auto-drain functionality and how AKS protects your workloads from scheduled VM maintenance events. Discover how VMSS enables automatic scaling, high availability, and cost-efficient VM management tailored for variable workloads. However, it also triggers the function when any other editing event occurs besides scale in or scale out. Jan 19, 2025 · Scheduled events provide proactive notifications about upcoming events, to Create availability alert rule for Azure virtual machine. Jun 11, 2025 · In this blog, learn about Microsoft Azure Virtual Machine Scale Sets (VMSS) — a powerful feature for deploying and managing scalable sets of identical VMs. The purpose of these updates ranges from patching software components in the hosting environment to upgrading networking components or decommissioning hardware. Query the endpoint periodically to detect upcoming maintenance events and the status of ongoing maintenance activities. You can use the Azure portal, PowerShell, the REST API, and the Azure CLI to query for maintenance windows for your Virtual Machine Scale Set VMs, and to start self-service maintenance. When a VMSS is reimaged, three main events are logged in the Activity Log: Accepted, Started, and Succeeded. Nov 1, 2024 · Autoscale has two log categories and a set of metrics that can be enabled via the Diagnostics settings tab on the Autoscale setting page. This project welcomes contributions and suggestions. These logs can be then exported to Azure Monitor to then build alerting. Scheduled events provide proactive notifications about upcoming events, for reactive information about events that happened in the past see VM availability information in Azure Resource Graph and Create an availability alert rule for Azure virtual machine. The solution adds another event - Terminate - to the list of Apr 1, 2025 · Monitoring your application health is an important signal for managing and upgrading your deployment. Mar 26, 2024 · Explore Azure's VM maintenance processes, learn about the innovative techniques used for updates, understand how to minimize impact during maintenance, and Aug 22, 2023 · Azure Event Grid will retry sending the event to the subscriber for a configurable amount of time before giving up. This causes my function, which includes a pipeline trigger and a DNS update, to be executed multiple times in parallel,… Aug 22, 2024 · Azure periodically updates its platform to improve the reliability, performance, and security of the host infrastructure for virtual machines. Default triggers for the firewall VMSS: Scale Out on more than 80% CPU usage, for an average of five minutes. Apr 17, 2025 · Send guest OS metrics to the Azure Monitor metric store by using a Resource Manager template for a Windows virtual machine scale set Sep 8, 2025 · This article introduces you to Azure Event Grid and provides details about the service's HTTP and Message Queuing Telemetry Transport (MQTT) messaging capabilities. Autoscale Scale Actions log data relating to each scale event. You can expect a delayed response in your first call of up to two minutes. You can edit or see the configuration in Azure Portal > VMSS > Scaling. Sep 11, 2024 · Preconditions No need to upgrade Python SDK or the Python SDK is ready. ttzqwxompmznkxsl04supylx64l65yjqce