Deploy the ExtraHop Explore Appliance in Azure

The following procedures explain how to deploy an ExtraHop Discover virtual appliance in a Microsoft Azure environment and join multiple Explore appliances to create an Explore cluster. You must have experience administering in an Azure environment to complete these procedures.

Before you begin

  • You must have experience deploying virtual machines in Azure within your virtual network infrastructure. To ensure that the deployment is successful, make sure you have access to, or the ability to create the required resources. You might need to work with other experts in your organization to ensure that the necessary resources are available.
  • You must have a Linux, Mac, or Windows client with the latest version of Azure CLI installed.
  • You must have the ExtraHop virtual hard disk (VHD) file, available on the ExtraHop Customer Portal.
  • You must have an ExtraHop product key.

System requirements

The table below shows the environmental parameters that you need to configure, or might have already configured in your Azure environment to successfully deploy your ExtraHop virtual appliance.

Parameter Description
Azure account Provides access to your Azure subscriptions.
Resource Group A container that holds related resources for the ExtraHop appliance.
Location The geographic region where the Azure resources are located to sustain your virtual appliances.
Storage account The Azure storage account contains all of your Azure Storage data objects, including blobs and disks.
Blob storage container The storage container where the ExtraHop appliance image is stored as a blob.
Managed disk The disk required for ExtraHop appliance data storage.
Network security group The network security group contains security rules that allow or deny inbound network traffic to, or outbound network traffic from the ExtraHop appliance.
Azure VM instance size An Azure instance size that most closely matches the Explore appliance VM size. See the table below.
Public or private IP address The IP address that enables access to the Web UI and Admin UI of the ExtraHop appliance.
Table 1. Azure datastore and instance sizes
vCPUs Memory Datastore disk Azure Instance Size
4 8 GB RAM 150 GB to 500 GB Standard_F4s_v2
8 16 GB RAM 150 GB to 1.2 TB Standard_F8s_v2
16 32 GB RAM 150 GB to 2.5 TB Standard_F16s_v2
32 64 GB RAM 150 GB to 4.1 TB Standard_F32s_v2

Deploy the EXA 5100v

Before you begin

The procedures below assume that you do not have the required resource group, storage account, storage container, and network security group configured. If you already have these parameters configured, you can proceed to step 5 after you log into your Azure account.
  1. Open a terminal application on your client and log into to your Azure account.
    az login
  2. Open https://aka.ms/devicelogin in a web browser and enter the code to authenticate, and then return to the command-line-interface.
  3. Create a resource group.
    az group create --name <name> --location <location>

    For example, create a new resource group in the West US region.

    az group create --name exampleRG --location westus
  4. Create a storage account.
    az storage account create --resource-group <resource group name> --name <storage account name> 

    For example:

    az storage account create --resource-group exampleRG --name exampleSA 
  5. View the storage account key. The value for key1 is required for step 6.
    az storage account keys list --resource-group <resource group name> --account-name <storage account name>

    For example:

    az storage account keys list --resource-group exampleRG --account-name exampleSA

    Output similar to the following appears:

    [ 
     {
       "keyName": "key1",
       "permissions": "Full",
       "value": "CORuU8mTcxLxq0bbszhZ4RKTB93CqLpjZdAhCrNJugAorAyvJjhGmBSedjYPmnzXPikSRigd
    5T5/YGYBoIzxNg=="
     },
     { "keyName": "key2",
       "permissions": "Full",
       "value": "DOlda4+6U3Cf5TUAng8/GKotfX1HHJuc3yljAlU+aktRAf4/KwVQUuAUnhdrw2yg5Pba5FpZn6oZYvROncnT8Q=="
     }
    ]
  6. Set default Azure storage account environment variables. You can have multiple storage accounts in your Azure subscription. To select one of them to apply to all subsequent storage commands, set these environment variables. If you do not set environment variables you will always have to specify --account-name and --account-key in the commands in the rest of this procedure.
    export AZURE_STORAGE_ACCOUNT=<storage account name>
    
    export AZURE_STORAGE_KEY=<key1>

    Where <key1> is the storage account key value that appears in step 5.

    For example:

    export AZURE_STORAGE_ACCOUNT=exampleSA
    export AZURE_STORAGE_KEY=CORuU8mTcxLxq0bbszhZ4RKTB93CqLpjZdAhCrNJugAor
    AyvJjhGmBSedjYPmnzXPikSRigd5T5/YGYBoIzxNg==
    
  7. Create a storage container.
    az storage container create --name <storage container name>

    For example:

    az storage container create --name exampleSC
  8. Upload the Explore appliance VHD file to the blob storage.
     az storage blob upload --container-name <container> --type page --name <blob name> --file <path/to/file> --validate-content 
    

    For example:

    az storage blob upload --container-name exampleSC --type page
    --name explore_appliance.vhd --file /Users/admin/Downloads/extrahop-exa-5100v-azure-7.2.0.5000.vhd --validate-content
  9. Retrieve the blob URI. You need the URI when you create the managed disk in the next step.
    az storage blob url --container-name <storage container name> --name <blob name>

    For example:

    az storage blob url --container-name exampleSC --name explore_appliance.vhd

    Output similar to the following appears:

    https://exampleSA.blob.core.windows.net/exampleSC/explore_appliance.vhd
  10. Create a managed disk, sourcing the Explore VHD file.
    az disk create --resource-group <resource group name> --location <Azure region> 
    --name <disk name> --sku Premium_LRS --source <blob uri> --size-gb <size gb>

    Where storage SKU specifies the type of disk and desired replication pattern. For example, Premium_LRS, StandardSSD_LRS, or Standard_LRS.

    For example:
    az disk create --resource-group exampleRG --location westus 
    --name exampleDisk --sku Standard_LRS --source https://exampleSA.blob.core.windows.net/exampleSC/explore_appliance.vhd 
    --size-gb 200
  11. Create the VM and attach the managed disk. This command creates the Explore appliance VM with a default network security group and private IP address.
    az vm create --resource-group <resource group name> --public-ip-address "" 
    --location <Azure region> --name <vm name> --os-type linux --attach-os-disk <disk name> 
    --size <azure machine size>

    For example:

    az vm create --resource-group exampleRG --public-ip-address "" --location westus --name exampleVM --os-type linux 
    --attach-os-disk exampleDisk --size Standard_F4s_v2
  12. Log into the Azure portal, https://portal.azure.com, and configure the networking rules for the appliance. The network security group must have the following rules configured:
    Table 2. Inbound Port Rules
    Name Port Protocol
    EXA 9443 TCP
    HTTPS 443 TCP
    SSH 22 TCP
    Table 3. Outbound Port Rules
    Name Port Protocol
    EXA 9443 ANY
    HTTPS 443 TCP
    SSH 22 TCP
  13. Repeat steps 10 - 12 to deploy additional Explore appliances to create your Explore cluster.
    Important:Do not create a copy of an existing ExtraHop virtual machine to deploy a new instance. Always start by creating a new managed disk from the original VHD file.

Next steps

Open a web browser and log into the Admin UI on the Explore appliance through the configured IP address. The default login name is setup and the password is default.

Complete the following procedures:

Published 2019-07-16 15:00