Microsoft Azure Administrator – Step by step Manage Governance via Azure Policy (part 2 of 17)

Student lab manual

Lab scenario

In order to improve management of Azure resources in Contoso, you have been tasked with implementing the following functionality:

  • tagging resource groups that include only infrastructure resources (such as Cloud Shell storage accounts)
  • ensuring that only properly tagged infrastructure resources can be added to infrastructure resource groups
  • remediating any non-compliant resources

Objectives

In this lab, we will:

  • Task 1: Create and assign tags via the Azure portal
  • Task 2: Enforce tagging via an Azure policy
  • Task 3: Apply tagging via an Azure policy

Estimated timing: 30 minutes

Architecture diagram

Task 1: Assign tags via the Azure portal

Note: If this is the first time you are starting Cloud Shell and you are presented with the You have no storage mounted message, select the subscription you are using in this lab, and click Create storage.

2. From the Cloud Shell pane, run the following to identify the name of the storage account used by Cloud Shell:

df

3. In the output of the command, note the first part of the fully qualified path designating the Cloud Shell home drive mount (marked here as xxxxxxxxxxxxxx:

//xxxxxxxxxxxxxx.file.core.windows.net/cloudshell (..) /usr/csuser/clouddrive

4. In the Azure portal, search and select Storage accounts and, in the list of the storage accounts, click the entry representing the storage account you identified in the previous step.

5. On the storage account blade, click the link representing the name of the resource group containing the storage account.

Note: note what resource group the storage account is in, you’ll need it later in the lab.

6. On the resource group blade, click Tags.

7. Create a tag with the following settings and Apply your change:

SettingValue
NameRole
ValueInfra

8. Navigate back to the storage account blade. Review the Overview information and note that the new tag was not automatically assigned to the storage account.

Task 2: Enforce tagging via an Azure policy

In this task, you will assign the built-in Require a tag and its value on resources policy to the resource group and evaluate the outcome.

1.In the Azure portal, search for and select Policy

2. In the Authoring section, click Definitions. Take a moment to browse through the list of built-in policy definitions that are available for you to use. List all built-in policies that involve the use of tags by selecting the Tags entry (and de-selecting all other entries) in the Category drop-down list.

3. Click the entry representing the Require a tag and its value on resources built-in policy and review its definition.

4. On the Require a tag and its value on resources built-in policy definition blade, click Assign.

5. Specify the Scope by clicking the ellipsis button and selecting the following values:

Setting
Value
Subscriptionthe name of the Azure subscription you are using in this lab
Resource Groupthe name of the resource group containing the Cloud Shell account you identified in the previous task

Note: A scope determines the resources or resource groups where the policy assignment takes effect. You could assign policies on the management group, subscription, or resource group level. You also have the option of specifying exclusions, such as individual subscriptions, resource groups, or resources (depending on the assignment scope).

6.Configure the Basics properties of the assignment by specifying the following settings (leave others with their defaults):

SettingValue
Assignment nameRequire Role tag with Infra value
DescriptionRequire Role tag with Infra value for all resources in the Cloud Shell resource group
Policy enforcementEnabled

7.Click Next and set Parameters to the following values:

SettingValue
Tag NameRole
Tag ValueInfra

8.Click Next and review the Remediation tab. Leave the Create a Managed Identity checkbox unchecked

9.Click Review + Create and then click Create.

Note: Now you will verify that the new policy assignment is in effect by attempting to create another Azure Storage account in the resource group without explicitly adding the required tag.

Note: It might take between 5 and 15 minutes for the policy to take effect.

10.Navigate back to the blade of the resource group hosting the storage account used for the Cloud Shell home drive, which you identified in the previous task

11.On the resource group blade, click + Create and then search for Storage Account, and click +Create

12.On the Basics tab of the Create storage account blade, verify that you are using the Resource Group that the Policy was applied to and specify the following settings (leave others with their defaults), click Review + create and then click Create

SettingValue
Storage account nameany globally unique combination of between 3 and 24 lower case letters and digits, starting with a letter

13.Once you create the deployment, you should see the Deployment failed message in the Notifications list of the portal. From the Notifications list, navigate to the deployment overview and click the Deployment failed. Click here for details message to identify the reason for the failure.

Note: Verify whether the error message states that the resource deployment was disallowed by the policy.

Note: By clicking the Raw Error tab, you can find more details about the error, including the name of the role definition Require Role tag with Infra value. The deployment failed because the storage account you attempted to create did not have a tag named Role with its value set to Infra.

Task 3: Apply tagging via an Azure policy

In this task, we will use a different policy definition to remediate any non-compliant resources.

1.In the Azure portal, search for and select Policy.

2.In the Authoring section, click Assignments.

3.In the list of assignments, right click the ellipsis icon in the row representing the Require Role tag with Infra value policy assignment and use the Delete assignment menu item to delete the assignment.

4.Click Assign policy and specify the Scope by clicking the ellipsis button and selecting the following values:

SettingValue
Subscriptionthe name of the Azure subscription you are using in this lab
Resource Groupthe name of the resource group containing the Cloud Shell account you identified in the first task

5.To specify the Policy definition, click the ellipsis button and then search for and select Inherit a tag from the resource group if missing

6.Configure the remaining Basics properties of the assignment by specifying the following settings (leave others with their defaults):

SettingValue
Assignment nameInherit the Role tag and its Infra value from the Cloud Shell resource group if missing
DescriptionInherit the Role tag and its Infra value from the Cloud Shell resource group if missing
Policy enforcementEnabled

7.Click Next and set Parameters to the following values:

SettingValue
Tag NameRole

8.Click Next and, on the Remediation tab, configure the following settings (leave others with their defaults):

SettingValue
Create a remediation taskenabled
Policy to remediateInherit a tag from the resource group if missing

Note: This policy definition includes the Modify effect.

9.Click Review + Create and then click Create.

Note: To verify that the new policy assignment is in effect, you will create another Azure Storage account in the same resource group without explicitly adding the required tag.

Note: It might take between 5 and 15 minutes for the policy to take effect.

10.Navigate back to the blade of the resource group hosting the storage account used for the Cloud Shell home drive, which you identified in the first task.

11.On the resource group blade, click + Create and then search for Storage Account, and click +Create

12.On the Basics tab of the Create storage account blade, verify that you are using the Resource Group that the Policy was applied to and specify the following settings (leave others with their defaults) and click Review + create:

SettingValue
Storage account nameany globally unique combination of between 3 and 24 lower case letters and digits, starting with a letter

Clean up resources

Note: Remember to remove any newly created Azure resources that you no longer use.

Note: Removing unused resources ensures you will not see unexpected charges, although keep in mind that Azure policies do not incur extra cost.

  1. In the portal, search for and select Policy.
  2. In the Authoring section, click Assignments, click the ellipsis icon to the right of the assignment you created in the previous task and click Delete assignment.
  3. In the portal, search for and select Storage accounts.
  4. In the list of storage accounts, select the resource group corresponding to the storage account you created in the last task of this lab. Select Tags and click Delete (Trash can to the right) to the Role:Infra tag and press Apply.
  5. In the portal, again search for and select Storage accounts or use the menu at the top to select Storage accounts
  6. In the list of storage accounts, select the storage account you created in the last task of this lab, click Delete, when prompted for the confirmation, in the Confirm delete type yes and click Delete.

Review

In this lab, you have:

  • Created and assigned tags via the Azure portal
  • Enforced tagging via an Azure policy
  • Applied tagging via an Azure polic