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Add zone selection image and tip box
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articles/chaos-studio/chaos-studio-tutorial-dynamic-target-portal.md

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@@ -39,25 +39,23 @@ With your Virtual Machine Scale Sets now onboarded, you can create your experime
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1. Within Chaos Studio, navigate to **Experiments** and select **Create**.
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![A screenshot showing the Experiments screen, with the Create button highlighted.](images/tutorial-dynamic-targets-experiment-browse.png)
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1. Add a name for your experiment that complies with resource naming guidelines, and select **Next: experiment designer**.
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1. Add a name for your experiment that complies with resource naming guidelines, and select **Next: Experiment designer**.
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![A screenshot showing the experiment creation screen, with the Next button highlighted.](images/tutorial-dynamic-targets-create-exp.png)
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1. Within Step 1 and Branch 1, select **Add action**, then **Add fault**.
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![A screenshot showing the experiment creation screen, with the Add Fault button highlighted.](images/tutorial-dynamic-targets-experiment-fault.png)
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1. Select the **VMSS Shutdown (version 2.0)** fault. Choose your desired duration and whether you want the shutdown to be abrupt, then select **Next: Target resources**.
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![A screenshot showing the fault details view.](images/tutorial-dynamic-targets-fault-details.png)
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1. Choose the Virtual Machine Scale Sets resource that you want to use in the experiment, then select **Next: Scope**.
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![A screenshot showing the fault details view, with the VMSS resource selected.](images/tutorial-dynamic-targets-fault-resources.png)
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1. In the Zones dropdown, select the zone where you want Virtual Machines in the Virtual Machine Scale Sets instance to be shut down.
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1. Select **Add** to add the fault to the experiment.
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![A screenshot showing the zone selection step within the fault pane.](images/tutorial-dynamic-targets-enable.png)
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1. In the Zones dropdown, select the zone where you want Virtual Machines in the Virtual Machine Scale Sets instance to be shut down, then select **Add**.
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![A screenshot showing the fault details view, with only Zone 1 selected.](images/tutorial-dynamic-targets-fault-zones.png)
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1. Select **Review + create** and then **Create** to save the experiment.
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## Give experiment permission to your Virtual Machine Scale Sets
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When you create a chaos experiment, Chaos Studio creates a system-assigned managed identity that executes faults against your target resources. This identity must be given [appropriate permissions](chaos-studio-fault-providers.md) to the target resource for the experiment to run successfully. These steps can be used for any resource and target type by modifying the role assignment in step #3 to match the [appropriate role for that resource and target type](chaos-studio-fault-providers.md).
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1. Navigate to your Virtual Machine Scale Sets resource and select **Access control (IAM)**.
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2. Select **Add role assignment**.
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1. Navigate to your Virtual Machine Scale Sets resource and select **Access control (IAM)**, then select **Add role assignment**.
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![A screenshot of the Virtual Machine Scale Sets resource page.](images/tutorial-dynamic-targets-vmss-iam.png)
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3. In the **Role** tab, choose **Virtual Machine Contributor** and then select **Next**.
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![A screenshot of the access control overview for Virtual Machine Scale Sets.](images/tutorial-dynamic-targets-role-selection.png)
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In this example, the chaos experiment successfully shut down the instance in Zone 1, as expected.
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![A screenshot of the Virtual Machine Scale Sets resource page showing an instance in the Stopped state.](images/tutorial-dynamic-targets-view-vmss.png)
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## Next steps
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> [!TIP]
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> If your Virtual Machine Scale Set uses an Autoscale policy, try improving this experiment by adding a parallel branch with the **Disable Autoscale** fault against the Virtual Machine Scale Set's `microsoft.insights/autoscaleSettings` resource.
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Now that you've run a dynamically targeted Virtual Machine Scale Sets shutdown experiment, you're ready to:
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- [Create an experiment that uses agent-based faults](chaos-studio-tutorial-agent-based-portal.md)
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- [Manage your experiment](chaos-studio-run-experiment.md)

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