Azure Resource Manager Overview - ARM is the deployment and management service for Azure. It provides a management layer that enables you to create, update, and delete resources in your Azure account. You use management features, like access control, locks, and tags, to secure and organize your resources after deployment.
Consistent management layer
When a user sends a request from any of the Azure tools, APIs, or SDKs, Resource Manager receives the request. It authenticates and authorizes the request. Resource Manager sends the request to the Azure service, which takes the requested action. Because all requests are handled through the same API, you see consistent results and capabilities in all the different tools.
Terminology
If you're new to Azure Resource Manager, there are some terms you might not be familiar with.
resource - A manageable item that is available through Azure. Virtual machines, storage accounts, web apps, databases, and virtual networks are examples of resources. Resource groups, subscriptions, management groups, and tags are also examples of resources.
resource group - A container that holds related resources for an Azure solution. The resource group includes those resources that you want to manage as a group. You decide which resources belong in a resource group based on what makes the most sense for your organization. See Resource groups.
resource provider - A service that supplies Azure resources. For example, a common resource provider is Microsoft.Compute, which supplies the virtual machine resource. Microsoft.Storage is another common resource provider. See Resource providers and types.
Resource Manager template - A JavaScript Object Notation (JSON) file that defines one or more resources to deploy to a resource group, subscription, management group, or tenant. The template can be used to deploy the resources consistently and repeatedly.
declarative syntax - Syntax that lets you state "Here is what I intend to create" without having to write the sequence of programming commands to create it. The Resource Manager template is an example of declarative syntax. In the file, you define the properties for the infrastructure to deploy to Azure.
The benefits of using Resource Manager
With Resource Manager, you can:
Manage your infrastructure through declarative templates rather than scripts.
Deploy, manage, and monitor all the resources for your solution as a group, rather than handling these resources individually.
Redeploy your solution throughout the development lifecycle and have confidence your resources are deployed in a consistent state.
Define the dependencies between resources so they're deployed in the correct order.
Apply access control to all services because Azure role-based access control (Azure RBAC) is natively integrated into the management platform.
Apply tags to resources to logically organize all the resources in your subscription.
Clarify your organization's billing by viewing costs for a group of resources sharing the same tag
Understand scope
ure provides four levels of scope: management groups, subscriptions, resource groups, and resources.
You apply management settings at any of these levels of scope. The level you select determines how widely the setting is applied. Lower levels inherit settings from higher levels. For example, when you apply a policy to the subscription, the policy is applied to all resource groups and resources in your subscription. When you apply a policy on the resource group, that policy is applied the resource group and all its resources. However, another resource group doesn't have that policy assignment.
Resource groups
There are some important factors to consider when defining your resource group:
All the resources in your resource group should share the same lifecycle. You deploy, update, and delete them together. If one resource, such as a server, needs to exist on a different deployment cycle it should be in another resource group.
Each resource can exist in only one resource group.
You can add or remove a resource to a resource group at any time.
You can move a resource from one resource group to another group. For more information, see Move resources to new resource group or subscription.
The resources in a resource group can be located in different regions than the resource group.
Resiliency of Azure Resource Manager
The Azure Resource Manager service is designed for resiliency and continuous availability. Resource Manager and control plane operations (requests sent to management.azure.com) in the REST API are:
This resiliency applies to services that receive requests through Resource Manager. For example, Key Vault benefits from this resiliency.
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29 авг 2024
