Plan your Update Management deployment
Step 1 - Automation account
Update Management is an Azure Automation feature, and therefore requires an Automation account. You can use an existing Automation account in your subscription, or create a new account dedicated only for Update Management and no other Automation features.
Step 2 - Azure Monitor Logs
Update Management depends on a Log Analytics workspace in Azure Monitor to store assessment and update status log data collected from managed machines. Integration with Log Analytics also enables detailed analysis and alerting in Azure Monitor. You can use an existing workspace in your subscription, or create a new one dedicated only for Update Management.
If you are new to Azure Monitor Logs and the Log Analytics workspace, you should review the Design a Log Analytics workspace deployment guide.
Step 3 - Supported operating systems
Update Management supports specific versions of the Windows Server and Linux operating systems. Before you enable Update Management, confirm that the target machines meet the operating system requirements.
Step 4 - Log Analytics agent
The Log Analytics agent for Windows and Linux is required to support Update Management. The agent is used for both data collection, and the Automation system Hybrid Runbook Worker role to support Update Management runbooks used to manage the assessment and update deployments on the machine.
On Azure VMs, if the Log Analytics agent isn't already installed, when you enable Update Management for the VM it is automatically installed using the Log Analytics VM extension for Windows or Linux. The agent is configured to report to the Log Analytics workspace linked to the Automation account Update Management is enabled in.
Non-Azure VMs or servers need to have the Log Analytics agent for Windows or Linux installed and reporting to the linked workspace. We recommend installing the Log Analytics agent for Windows or Linux by first connecting your machine to Azure Arc-enabled servers, and then use Azure Policy to assign the Deploy Log Analytics agent to Linux or Windows Azure Arc machines built-in policy definition. Alternatively, if you plan to monitor the machines with VM insights, instead use the Enable Azure Monitor for VMs initiative.
If you're enabling a machine that's currently managed by Operations Manager, a new agent isn't required. The workspace information is added to the agents configuration when you connect the management group to the Log Analytics workspace.
Having a machine registered for Update Management in more than one Log Analytics workspace (also referred to as multihoming) isn't supported.
Step 5 - Network planning
To prepare your network to support Update Management, you may need to configure some infrastructure components. For example, open firewall ports to pass the communications used by Update Management and Azure Monitor.
Review Azure Automation Network Configuration for detailed information on the ports, URLs, and other networking details required for Update Management, including the Hybrid Runbook Worker role. To connect to the Automation service from your Azure VMs securely and privately, review Use Azure Private Link.
For Windows machines, you must also allow traffic to any endpoints required by Windows Update agent. You can find an updated list of required endpoints in Issues related to HTTP/Proxy. If you have a local Windows Server Update Services (WSUS) deployment, you must also allow traffic to the server specified in your WSUS key.
For Red Hat Linux machines, see IPs for the RHUI content delivery servers for required endpoints. For other Linux distributions, see your provider documentation.
If your IT security policies do not allow machines on the network to connect to the internet, you can set up a Log Analytics gateway and then configure the machine to connect through the gateway to Azure Automation and Azure Monitor.
Step 6 - Permissions
To create and manage update deployments, you need specific permissions. To learn about these permissions, see Role-based access - Update Management.
Step 7 - Windows Update Agent
Azure Automation Update Management relies on the Windows Update Agent to download and install Windows updates. There are specific group policy settings that are used by Windows Update Agent (WUA) on machines to connect to Windows Server Update Services (WSUS) or Microsoft Update. These group policy settings are also used to successfully scan for software update compliance, and to automatically update the software updates. To review our recommendations, see Configure Windows Update settings for Update Management.
Step 8 - Linux repository
VMs created from the on-demand Red Hat Enterprise Linux (RHEL) images available in Azure Marketplace are registered to access the Red Hat Update Infrastructure (RHUI) that's deployed in Azure. Any other Linux distribution must be updated from the distribution's online file repository by using methods supported by that distribution.
To classify updates on Red Hat Enterprise version 6, you need to install the yum-security plugin. On Red Hat Enterprise Linux 7, the plugin is already a part of yum itself and there's no need to install anything. For more information, see the following Red Hat knowledge article.
Step 9 - Plan deployment targets
Update Management allows you to target updates to a dynamic group representing Azure or non-Azure machines, so you can ensure that specific machines always get the right updates at the most convenient times. A dynamic group is resolved at deployment time and is based on the following criteria:
- Resource groups
For non-Azure machines, a dynamic group uses saved searches, also called computer groups. Update deployments scoped to a group of machines is only visible from the Automation account in the Update Management Deployment schedules option, not from a specific Azure VM.
Alternatively, updates can be managed only for a selected Azure VM. Update deployments scoped to the specific machine are visible from both the machine and from the Automation account in Update Management Deployment schedules option.
Enable Update Management and select machines to be managed using one of the following methods:
Using an Azure Resource Manager template to deploy Update Management to a new or existing Automation account and Azure Monitor Log Analytics workspace in your subscription. It does not configure the scope of machines that should be managed, this is performed as a separate step after using the template.
From your Automation account for one or more Azure and non-Azure machines, including Azure Arc-enabled servers.
Using the Enable-AutomationSolution runbook to automate onboarding Azure VMs.
For a selected Azure VM from the Virtual machines page in the Azure portal. This scenario is available for Linux and Windows VMs.
For multiple Azure VMs by selecting them from the Virtual machines page in the Azure portal.
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