Integrate external monitoring solution with Azure Stack Hub

Artikkeli
03/06/2024

For external monitoring of the Azure Stack Hub infrastructure, you need to monitor the Azure Stack Hub software, the physical computers, and the physical network switches. Each of these areas offers a method to retrieve health and alert information:

Azure Stack Hub software offers a REST-based API to retrieve health and alerts. The use of software-defined technologies such as Storage Spaces Direct, storage health, and alerts are part of software monitoring.
Physical computers can make health and alert information available via the baseboard management controllers (BMCs).
Physical network devices can make health and alert information available via the SNMP protocol.

Each Azure Stack Hub solution ships with a hardware lifecycle host. This host runs the original equipment manufacturer (OEM) hardware vendor's monitoring software for the physical servers and network devices. Check with your OEM provider if their monitoring solutions can integrate with existing monitoring solutions in your datacenter.

Important

The external monitoring solution you use must be agentless. You can't install third-party agents inside Azure Stack Hub components.

The following diagram shows traffic flow between an Azure Stack Hub integrated system, the hardware lifecycle host, an external monitoring solution, and an external ticketing/data collection system.

Diagram showing traffic between Azure Stack Hub, monitoring, and ticketing solution.

Note

External monitoring integration directly with physical servers isn't allowed and actively blocked by Access Control Lists (ACLs). External monitoring integration directly with physical network devices is supported. Check with your OEM provider on how to enable this feature.

This article explains how to integrate Azure Stack Hub with external monitoring solutions such as System Center Operations Manager and Nagios. It also includes how to work with alerts programmatically by using PowerShell or through REST API calls.

Integrate with Operations Manager

You can use Operations Manager for external monitoring of Azure Stack Hub. The System Center Management Pack for Microsoft Azure Stack Hub enables you to monitor multiple Azure Stack Hub deployments with a single Operations Manager instance. The management pack uses the health resource provider and update resource provider REST APIs to communicate with Azure Stack Hub. If you plan to bypass the OEM monitoring software that's running on the hardware lifecycle host, you can install vendor management packs to monitor physical servers. You can also use Operations Manager network device discovery to monitor network switches.

The management pack for Azure Stack Hub provides the following capabilities:

You can manage multiple Azure Stack Hub deployments.
There's support for Microsoft Entra ID and Active Directory Federation Services (AD FS).
You can retrieve and close alerts.
There's a health and a capacity dashboard.
Includes Auto Maintenance Mode detection for when patch and update (P&U) is in progress.
Includes Force Update tasks for deployment and region.
You can add custom information to a region.
Supports notification and reporting.

To download the System Center Management Pack and the associated user guide, see Download System Center Management Pack for Microsoft Azure Stack Hub.

For a ticketing solution, you can integrate Operations Manager with System Center Service Manager. The integrated product connector enables bidirectional communication that allows you to close an alert in Azure Stack Hub and Operations Manager after you resolve a service request in Service Manager.

The following diagram shows integration of Azure Stack Hub with an existing System Center deployment. You can automate Service Manager further with System Center Orchestrator or Service Management Automation (SMA) to run operations in Azure Stack Hub.

Diagram showing integration with OM, Service Manager, and SMA.

Integrate with Nagios

You can set up and configure the Nagios Plugin for Microsoft Azure Stack Hub.

A Nagios monitoring plugin was developed together with partner Cloudbase Solutions, which is available under the permissive free software license - MIT (Massachusetts Institute of Technology).

The plugin is written in Python and leverages the health resource provider REST API. It offers basic functionality to retrieve and close alerts in Azure Stack Hub. Like the System Center management pack, it enables you to add multiple Azure Stack Hub deployments and to send notifications.

With Version 1.2 the Azure Stack Hub - Nagios plugin leverages the Microsoft ADAL library and supports authentication using Service Principal with a secret or certificate. Also, the configuration has been simplified using a single configuration file with new parameters. It now supports Azure Stack Hub deployments using Microsoft Entra ID and AD FS as the identity system.

Important

AD FS only supports interactive sign-in sessions. If you require a non-interactive sign-in for an automated scenario, you must use a SPN.

The plugin works with Nagios 4x and XI. To download the plugin, see Monitoring Azure Stack Hub Alerts. The download site also includes installation and configuration details.

Requirements for Nagios

Minimum Nagios Version is 4.x
Microsoft Entra Python library. This library can be installed using Python PIP.
```
sudo pip install adal pyyaml six
```

Install plugin

This section describes how to install the Azure Stack Hub plugin assuming a default installation of Nagios.

The plugin package contains the following files:

azurestack_plugin.py
azurestack_handler.sh
samples/etc/azurestack.cfg
samples/etc/azurestack_commands.cfg
samples/etc/azurestack_contacts.cfg
samples/etc/azurestack_hosts.cfg
samples/etc/azurestack_services.cfg

Copy the plugin azurestack_plugin.py into the following directory: /usr/local/nagios/libexec.
Copy the handler azurestack_handler.sh into the following directory: /usr/local/nagios/libexec/eventhandlers.

Make sure the plugin file is set to be executable:

sudo cp azurestack_plugin.py <PLUGINS_DIR>
sudo chmod +x <PLUGINS_DIR>/azurestack_plugin.py

Configure plugin

The following parameters are available to be configured in the azurestack.cfg file. Parameters in bold need to be configured independently from the authentication model you choose.

For more information on how to create an SPN, see Use an app identity to access resources.

Parameter	Description	Authentication
External_domain_fqdn	External Domain FQDN
region:	Region Name
tenant_id:	Tenant ID*
client_id:	Client ID	SPN with secret
client_secret:	Client Password	SPN with secret
client_cert**:	Path to Certificate	SPN with certificate
client_cert_thumbprint**:	Certificate Thumbprint	SPN with certificate

*Tenant ID isn't required for Azure Stack Hub deployments with AD FS.

** Client secret and client cert are mutually exclusive.

The other configuration files contain optional configuration settings as they can be configured in Nagios as well.

Note

Check the location destination in azurestack_hosts.cfg and azurestack_services.cfg.

Configuration	Description
azurestack_commands.cfg	Handler configuration no changes requirement
azurestack_contacts.cfg	Notification Settings
azurestack_hosts.cfg	Azure Stack Hub Deployment Naming
azurestack_services.cfg	Configuration of the Service

Setup steps

Modify the configuration file.
Copy the modified configuration files into the following folder: /usr/local/nagios/etc/objects.

Update Nagios configuration

The Nagios configuration needs to be updated to ensure the Azure Stack Hub - Nagios Plugin is loaded.

Open the following file:
```
/usr/local/nagios/etc/nagios.cfg
```

Add the following entry:

# Load the Azure Stack Hub Plugin Configuration
cfg_file=/usr/local/Nagios/etc/objects/azurestack_contacts.cfg
cfg_file=/usr/local/Nagios/etc/objects/azurestack_commands.cfg
cfg_file=/usr/local/Nagios/etc/objects/azurestack_hosts.cfg
cfg_file=/usr/local/Nagios/etc/objects/azurestack_services.cfg

Reload Nagios.
```
sudo service nagios reload
```

Manually close active alerts

Active alerts can be closed within Nagios using the custom notification functionality. The custom notification must be:

/close-alert <ALERT_GUID>

An alert can also be closed using a terminal with the following command:

/usr/local/nagios/libexec/azurestack_plugin.py --config-file /usr/local/nagios/etc/objects/azurestack.cfg --action Close --alert-id <ALERT_GUID>

Troubleshooting

Troubleshooting the plugin is done by calling the plugin manually in a terminal. Use the following method:

/usr/local/nagios/libexec/azurestack_plugin.py --config-file /usr/local/nagios/etc/objects/azurestack.cfg --action Monitor

Use PowerShell to monitor health and alerts

If you're not using Operations Manager, Nagios, or a Nagios-based solution, you can use PowerShell to enable a broad range of monitoring solutions to integrate with Azure Stack Hub.

Az modules
AzureRM modules

To use PowerShell, make sure that you have PowerShell installed and configured for an Azure Stack Hub operator environment. Install PowerShell on a local computer that can reach the Resource Manager (administrator) endpoint (https://adminmanagement.[region].[External_FQDN]).

Run the following commands to connect to the Azure Stack Hub environment as an Azure Stack Hub operator:

Add-AzEnvironment -Name "AzureStackAdmin" -ArmEndpoint https://adminmanagement.[Region].[External_FQDN] `
   -AzureKeyVaultDnsSuffix adminvault.[Region].[External_FQDN] `
   -AzureKeyVaultServiceEndpointResourceId https://adminvault.[Region].[External_FQDN]

Connect-AzAccount -EnvironmentName "AzureStackAdmin"

Use commands such as the following examples to work with alerts:

# Retrieve all alerts
$Alerts = Get-AzsAlert
$Alerts

# Filter for active alerts
$Active = $Alerts | Where-Object { $_.State -eq "active" }
$Active

# Close alert
Close-AzsAlert -AlertID "ID"

#Retrieve resource provider health
$RPHealth = Get-AzsRPHealth
$RPHealth

# Retrieve infrastructure role instance health
$FRPID = $RPHealth | Where-Object { $_.DisplayName -eq "Capacity" }
   Get-AzsRegistrationHealth -ServiceRegistrationId $FRPID.RegistrationId

To use PowerShell, make sure that you have PowerShell installed and configured for an Azure Stack Hub operator environment. Install PowerShell on a local computer that can reach the Resource Manager (administrator) endpoint (https://adminmanagement.[region].[External_FQDN]).