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Jumpbox Virtual Machine Azure Resource Manager Template

Architecture

Sets up the following:

  • Windows Jumpbox VM
    • VM
      • OS Disk
    • Network Interfaces
    • Diagnostics Storage Account
    • Public IP Address
    • Custom Script Extension to disable IE Enhanced Security Configuration (ESC)
    • Diagnostics Extension
    • Log Analytics (aka OMS) Extension
    • Azure Automation to turn off on schedule (alternative to Schedule which is available in Azure Gov)

Naming Convention

This template only has 1 parameter: namingPrefix. This parameter is used to autogenerate the names of all resources. For example, for namingPrefix of contoso_ will result in contoso_vm_jumpbox and contoso_nic_jumpbox.

Assumptions

All resources are created in the same location as the resource group they are contained in.

Instructions

  1. Create a resource group for your jumpboxes if you don't already have one

    az group create -n contoso-jumpboxes -l usgovvirginia

  2. Deploy the template

    az group deployment create -g contoso-jumpboxes -n $(date +%Y%m%d_%H%M%S) --template-file vms-jumpbox-win/template.json --parameters namingPrefix=winjumpbox1

  3. Once that completes, you can:

    • RDP into the VM
    • Got to Log Analytics and see telemetry for this VM
    • Use Storage Explorer to query the diagnostics metrics in the diagnostics storage account
    • Wait for the automation job to kick in and automatically turn off the VM at the end of the day

Other Notes

  • VM Computer Names don't use the prefix given naming constraints.
  • VM storageProfile.osDisk.ostype is hardcoded due to dependency on osProfile.[windows/linux]Configuration
  • VM diagnosticsProfile.bootDiagnostics.storageUri is a reference implemented via the reference function to retreive the storage account's primaryEndpoints.blob.
  • VM is deployed in vnet & subnets that are deployed separately, can be on same or different resource group. Implemented using resourceId(subscriptionId,resourceGroupName,...).
  • Extensions in general can be added at the root level or as child resources of VMs, opted for root level to reduce nesting.
  • Diagnostics extension gathers logs and sends them to storage account.
    • Configuration must include ResourceId.
    • According to docs, can use XML but v1.9 assumes JSON, thus went with JSON.
    • storageAccountEndpoint is a reference, don't hardcode it.
    • v1.11 not available in Gov, had to use v1.9 (see list of extension versions available in Gov)
  • Log Analytics (aka OMS) extensions sends logs from Diagnostics extension to Log Analytics.
    • Log Analytics deployment is not supported via Azure Resource Manager templates.
    • The extension is only deployed if WorkspaceId and WorkspaceKey parameters are provided. Implemented using condition.
  • Custom script extension disables IE ESC for the jumpbox.
    • Scripts pulled from open URI. Alternatively can use storage account & storage key.

Outstanding Items

  • Add Recovery Services

  • Add Alert rules

  • Add proper notes for Linux jumpbox and document differences

    • osDisk.osType
    • osProfile.linuxConfiguration

  • Add support for multiple VMs through copy and copyIndex()