Azure Monitor for VM Insights is a feature of Azure Monitor that provides comprehensive monitoring and diagnostics for your Azure virtual machines and virtual machine scale sets. It collects performance data, process information, and network dependencies from your virtual machines and displays them in interactive charts and maps. You can use Azure Monitor for VM Insights to troubleshoot performance issues, optimize resource utilization, and identify network bottlenecks1.
To enable Azure Monitor for VM Insights, you need to install two agents on your virtual machines: the Azure Monitor agent (preview) and the Dependency agent. The Azure Monitor agent collects performance metrics and sends them to a Log Analytics workspace. The Dependency agent collects process information and network dependencies and sends them to the InsightsMetrics table in the same workspace2.
By default, the agents communicate with Azure Monitor over the public internet. However, if you want to ensure that all the virtual machines only communicate with Azure Monitor through a virtual network named VNet1, you need to configure private network access for the agents.
Private network access allows the agents to communicate with Azure Monitor using a private endpoint, which is a special network interface that connects your virtual network to an Azure service without exposing it to the public internet. A private endpoint uses a private IP address from your virtual network address space, so you can secure and control the network traffic between your virtual machines and Azure Monitor3.
To configure private network access for the agents, you need to create an Azure Monitor Private Link Scope (AMPIS) first. An AMPIS is a resource that groups one or more Log Analytics workspaces together and associates them with a private endpoint. An AMPIS allows you to manage the private connectivity settings for multiple workspaces in one place4.
After creating an AMPIS, you need to create a private endpoint in VNet1 and link it to the AMPIS. This will enable the agents on your virtual machines to send data to the Log Analytics workspaces in the AMPIS using the private IP address of the private endpoint5.

Reference:
https://docs.microsoft.com/en-us/azure/azure-resource-manager/resource-group-using-tags

https://learn.microsoft.com/en-us/azure/active-directory/external-identities/tutorial-bulk-invite?source=recommendations

https://learn.microsoft.com/en-us/azure/azure-monitor/alerts/alerts-create-new-alert-rule You create an alert rule by combining:
- The resources to be monitored.
- The signal or telemetry from the resource.
- Conditions.
Then you define these elements for the resulting alert actions by using:
- Alert processing rules
- Action groups