Azure RBAC Configuration and Role-Based Access Control

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Azure RBAC configuration is a crucial aspect of securing your Azure resources. It's a way to control access to your Azure resources based on the user's identity and role.

To implement Azure RBAC, you need to create a role definition that outlines the permissions and actions a user can perform on a specific resource. This role definition is then assigned to a user or group, giving them the necessary permissions to manage the resource.

Azure RBAC supports three types of roles: built-in, custom, and inherited roles. Built-in roles are pre-defined by Azure and can be assigned to users or groups directly. Custom roles, on the other hand, can be created to meet specific organizational needs.

Azure RBAC Basics

Each Azure subscription is homed to an Azure Active Directory.

Only users, groups, and applications from that directory can be granted access to manage resources in the Azure subscription.

Access is granted by assigning the appropriate RBAC role to users, groups, and applications, at the right scope.

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You can assign roles at the subscription scope to grant access to the entire subscription.

Assigning a role at the resource group scope grants access to a specific resource group within a subscription.

Roles can be assigned at specific resources like websites, virtual machines, and subnets to grant access only to those resources.

The RBAC role you assign dictates what resources the user or application can manage within that scope.

Assigning Roles

Assigning roles is a crucial step in Azure RBAC configuration. You can assign roles to users, groups, and applications at subscription, resource group, and resource scope.

To assign a role, you must first create the role in the Azure portal. You can create a custom role using RBAC command-line tools in Azure PowerShell and Azure Command-Line Interface. A custom role can be created with specific access needs, such as allowing monitoring and restarting virtual machines.

You can make a custom role available for assignment in specific subscriptions or resource groups using the AssignableScopes property. This property controls who can view, update, and delete the role. For example, you can make a role available for assignment in two subscriptions by specifying "/subscriptions/c276fc76-9cd4-44c9-99a7-4fd71546436e", "/subscriptions/e91d47c4-76f3-4271-a796-21b4ecfe3624" as the AssignableScopes.

Credit: youtube.com, Azure Role-based Access Control (RBAC)

To assign a role to a user, you must first navigate to the Access control (IAM) section of the Subscriptions blade. From there, you can click +Add and select the role you want to assign. You can also assign roles to applications, such as App Configuration data roles.

Here are some valid assignable scopes for a custom role:

  • /subscriptions/c276fc76-9cd4-44c9-99a7-4fd71546436e
  • /subscriptions/e91d47c4-76f3-4271-a796-21b4ecfe3624
  • /subscriptions/c276fc76-9cd4-44c9-99a7-4fd71546436e/resourceGroups/Network

You must assign the role you created to your registered app in the Azure portal. To do this, click Subscriptions, select the subscription you want Alert Logic to protect, and then click Access control (IAM). Click +Add, and then click Add role assignment to assign the role to your app registration.

Role Configuration

Role configuration is a crucial part of Azure RBAC. You can create custom roles that meet your specific access needs.

Custom roles can be created using RBAC command-line tools in Azure PowerShell and Azure Command-Line Interface. They can be assigned to users, groups, and applications at subscription, resource group, and resource scope.

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To assign custom roles, you can use the Azure portal or the Azure CLI. You can also use Azure PowerShell to create and manage custom roles.

If you need to read data from an App Configuration store, you can assign the App Configuration Data Reader role. If you need to write data to the store, you can assign the App Configuration Data Owner role.

Here are the steps to assign App Configuration Data roles:

  1. In the Azure portal, navigate to your App Configuration store and select Access control (IAM).
  2. Select Add -> Add role assignment.
  3. Select the App Configuration Data Reader role (or another App Configuration role as appropriate) and then select Next.
  4. Follow the wizard to select the credential you're granting access to and then select Next.
  5. Finally, select Review + assign to assign the role.

Only users with Owner or User Access Administrator roles can make role assignments.

Managing Roles

Managing Roles is a crucial part of Azure RBAC configuration. You can list RBAC roles available for assignment using the azure role list command in the Azure Command-Line Interface.

To understand what operations each role grants access to, use the azure role show command. This will give you a clear picture of what you can manage within a specific scope.

You can assign roles at the subscription scope, resource group scope, or even at specific resources like websites, virtual machines, and subnets. This allows you to grant access to users, groups, and applications only to the resources they need to manage.

Credit: youtube.com, What are RBAC Roles in Azure and How to Use Them

Here are some key RBAC commands to manage roles:

  • azure role assignment list: Lists RBAC access assignments effective at the specified subscription or resource group or resource.
  • azure role assignment create: Grants access to users, groups, and applications.
  • azure role assignment delete: Removes access.

Custom roles can be created using RBAC command-line tools in Azure PowerShell and Azure Command-Line Interface. This is useful when none of the built-in roles meet your specific access needs.

Role Permissions

In Azure RBAC, custom roles can be created using RBAC command-line tools in Azure PowerShell, and Azure Command-Line Interface.

Custom roles can be assigned to users, groups, and applications at subscription, resource group, and resource scope.

To create a custom role, you can use the RBAC command-line tools, which allows for specific access needs to be met.

Custom roles can be used to allow monitoring and restarting virtual machines, as shown in an example custom role definition.

You can grant permissions to access Azure Key Vault by following a series of steps in the Azure portal.

To do this, you must select a key vault from the list, and then click on Access policies.

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Clicking on + Add Access Policy allows you to add a new access policy, which includes selecting the permissions you want to grant.

The Key permissions field and Secret permissions field must be populated with the necessary permissions, such as Get and List.

Here is a summary of the required permissions:

You must repeat these steps for each key vault in the list to ensure that Alert Logic can perform CIS benchmark checks.

Change History Report

To track changes to Azure RBAC, you can use the Access Change History Report, which logs all access changes in your Azure subscriptions as Azure events.

You can also create a report using Azure PowerShell to see who granted or revoked access to whom on what scope within your subscriptions.

With Azure CLI, you can create a report of access changes in your subscription for the past 7 days, and even query access changes for the past 90 days in 15-day batches.

Access changes can be queried for the past 90 days, but be aware that this is limited to 15-day batches.

To view all access changes in the subscription for the past 7 days, use the Azure CLI command listed in the relevant documentation.

Using Azure CLI

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Using Azure CLI, you can manage access to your Azure resources with ease. To start, you'll need to run the account list command with custom output filters to list the IDs of the cloud subscriptions available in your Azure cloud account.

The command output should return the requested subscription identifiers (IDs). This is a crucial step in setting up RBAC configuration in Azure.

To set the selected subscription to be the current active subscription, run the account set command with the ID of the Azure cloud subscription that you want to examine as the identifier parameter.

The account set command does not produce an output, but it's essential for further configuration steps.

To list the name and the associated resource group for each Azure Kubernetes Service (AKS) cluster available in the selected Azure subscription, run the aks list command with custom query filters.

The command output should return the requested AKS cluster names. You can use this information to further configure RBAC access for each cluster.

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To describe the configuration status of the Azure Role-Based Access Control (RBAC) feature, available for the selected AKS cluster, run the aks show command with the name of the AKS cluster that you want to examine (and the associated resource group) as identifier parameters.

The command output should return the requested feature status (true for enabled, false for disabled). Repeat this step for each AKS cluster available within the selected Azure subscription.

Here is a summary of the Azure CLI commands used in this section:

Frequently Asked Questions

What is the difference between Azure RBAC and IAM?

Azure RBAC is the authorization system that manages access to Azure resources, while IAM (Identity and Access Management) is the page where you assign roles to grant access. In other words, Azure RBAC is the "what" and IAM is the "how" of managing access to Azure resources.

Oscar Hettinger

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Oscar Hettinger is a skilled writer with a passion for crafting informative and engaging content. With a keen eye for detail, he has established himself as a go-to expert in the tech industry, covering topics such as cloud storage and productivity tools. His work has been featured in various online publications, where he has shared his insights on Google Drive subtitle management and other related topics.

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