PS: Deploy RHEL In Azure

2 minute read

Description:

So I had to deploy a set of RHEL 8 boxes in Azure but I kept being told to destroy them and move them between subnets. After the second time, I decided it would be better to script the installation. The following script will:

  • Deploy RHEL 8 box to the Resource Group and Subnet of your choosing
  • Attach an extra 80 GB disk to the VM
  • Set the IP assigned to it as static (you will need to know the subnet and available IP Addresses before hand)
  • Requires MS Az module

To Resolve:

  1. Use the following script and set your variables in the Variables for each section:

    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    11
    12
    13
    14
    15
    16
    17
    18
    19
    20
    21
    22
    23
    24
    25
    26
    27
    28
    29
    30
    31
    32
    33
    34
    35
    36
    37
    38
    39
    40
    41
    42
    43
    44
    45
    46
    47
    48
    49
    50
    51
    52
    53
    54
    55
    56
    57
    58
    59
    60
    61
    62
    63
    64
    65
    66
    67
    68
    69
    70
    71
    72
    
    ################################
    # Run once
    Import-Module Az
    Connect-AzAccount
    ################################
    # Variables for each
    
    $vmName = 'myRHEL8'
    $vmSize = 'Standard_D2_v3'
    $staticIP = "10.20.20.102"
    
    $resourceGroupName = 'RHEL8-Instances'
    $location = 'southcentralus'
    $vnetName = 'Linux_VNET'
    $vnetSubnetName = 'RHEL8_Subnet'
    $nsgName = "nsg_rhel"
    
    $adminUsername = 'seeKeepass'
    $adminPassword = 'seeKeepass'
    
    # OS image
    $publisherName = 'RedHat'
    $offerName = 'RHEL'
    $skuName = '8'
    # if you want Windows, just change to:
    # per https://docs.microsoft.com/en-us/azure/virtual-machines/windows/cli-ps-findimage
    # $publisherName = 'MicrosoftWindowsServer'
    # $offerName = 'WindowsServer'
    # $skuName = '2019-Datacenter'
    
    
    ################################
    
    # start
    $resourceGroup = Get-AzResourceGroup -Name $resourceGroupName
    $rgName = $resourceGroup.ResourceGroupName
    
    # Set the network card info
    $vnet = Get-AzVirtualNetwork -Name $vnetName -ResourceGroupName $rgName
    $subnetid = (Get-AzVirtualNetworkSubnetConfig -Name $vnetSubnetName -VirtualNetwork $vnet).Id
    $nsg = Get-AzNetworkSecurityGroup -ResourceGroupName $rgName -Name $nsgName
    $nic = New-AzNetworkInterface -Name "$($vmName)$(Get-Random)" -ResourceGroupName $rgName -Location $location -SubnetId $subnetid -NetworkSecurityGroupId $nsg.Id
    
    # Set the Azure Marketplace image
    $adminCreds = New-Object PSCredential $adminUsername, ($adminPassword | ConvertTo-SecureString -AsPlainText -Force)
    # Set the disk info
    $dataDiskName = $vmName + '_datadisk1'
    $storageType = 'StandardSSD_LRS'
    $diskConfig = New-AzDiskConfig -SkuName $storageType -Location $location -CreateOption Empty -DiskSizeGB 80
    $dataDisk1 = New-AzDisk -DiskName $dataDiskName -Disk $diskConfig -ResourceGroupName $rgName
    
    # Set OS info / create VM
    $vmSize = 'Standard_D2_v3'
    $vmConfig = New-AzVMConfig -VMName $vmName -VMSize $vmSize
    Add-AzVMNetworkInterface -VM $vmConfig -Id $nic.Id
    Set-AzVMOperatingSystem -VM $vmConfig -Linux -ComputerName $vmName -Credential $adminCreds
    Set-AzVMSourceImage -VM $vmConfig -PublisherName $publisherName -Offer $offerName -Skus $skuName -Version 'latest'
    Set-AzVMOSDisk -VM $vmConfig -Name "$($vmName)_OsDisk_1_$(Get-Random)" -CreateOption "FromImage"
    Set-AzVMBootDiagnostic -VM $vmConfig -Disable
    New-AzVM -ResourceGroupName $rgName -Location $location -VM $vmConfig
    
    # Attach disk
    $vm = Get-AzVM -Name $vmName -ResourceGroupName $rgName 
    $vm = Add-AzVMDataDisk -VM $vm -Name $dataDiskName -CreateOption Attach -ManagedDiskId $dataDisk1.Id -Lun 1
    Update-AzVM -VM $vm -ResourceGroupName $rgName
    
    # Set static IP
    $postInstallNic = Get-AzNetworkInterface -ResourceGroupName $rgName -Name $nic.Name
    $postInstallNic.IpConfigurations[0].PrivateIpAddress = $staticIP
    $postInstallNic.IpConfigurations[0].PrivateIpAllocationMethod = "Static"
    $postInstallNic.Tag = @{Name = "Name"; Value = "Value" }
    Set-AzNetworkInterface -NetworkInterface $postInstallNic
    

-----------------------------------------------------------
Spotted a mistake in this article? Why not suggest an edit!
Did you like the article? Donations are always welcome!
-----------------------------------------------------------

Comments