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Manage virtual machines using Ruby

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This sample demonstrates how to manage your Azure virtual machines using the Ruby SDK.

On this page

Run this sample

  1. If you don't already have it, install Ruby and the Ruby DevKit.

  2. If you don't have bundler, install it.

    gem install bundler
    
  3. Clone the repository.

    git clone https://github.com/Azure-Samples/compute-ruby-manage-vm.git
    
  4. Install the dependencies using bundle.

    cd compute-ruby-manage-vm
    bundle install
    
  5. Create an Azure service principal either through

    Azure CLI, PowerShell or the portal.

  6. Set the following environment variables using the information from the service principle that you created.

    export AZURE_TENANT_ID={your tenant id}
    export AZURE_CLIENT_ID={your client id}
    export AZURE_CLIENT_SECRET={your client secret}
    export AZURE_SUBSCRIPTION_ID={your subscription id}
    

    [AZURE.NOTE] On Windows, use set instead of export.

  7. Run the sample.

    bundle exec ruby example.rb
    

What is example.rb doing?

This sample starts by setting up ResourceManagementClient, the resource provider clients, a resource group, and a storage account using your subscription and credentials.

subscription_id = ENV['AZURE_SUBSCRIPTION_ID'] || '11111111-1111-1111-1111-111111111111' # your Azure Subscription Id
provider = MsRestAzure::ApplicationTokenProvider.new(
    ENV['AZURE_TENANT_ID'],
    ENV['AZURE_CLIENT_ID'],
    ENV['AZURE_CLIENT_SECRET'])
credentials = MsRest::TokenCredentials.new(provider)
resource_client = Azure::ARM::Resources::ResourceManagementClient.new(credentials)
resource_client.subscription_id = subscription_id
network_client = Azure::ARM::Network::NetworkManagementClient.new(credentials)
network_client.subscription_id = subscription_id
storage_client = Azure::ARM::Storage::StorageManagementClient.new(credentials)
storage_client.subscription_id = subscription_id
compute_client = Azure::ARM::Compute::ComputeManagementClient.new(credentials)
compute_client.subscription_id = subscription_id

resource_group_params = Azure::ARM::Resources::Models::ResourceGroup.new.tap do |rg|
    rg.location = REGION
end

resource_group = resource_client.resource_groups.create_or_update(RESOURCE_GROUP_NAME, resource_group_params)
postfix = rand(1000)
storage_account_name = "rubystor#{postfix}"
puts "Creating a premium storage account with encryption off named #{storage_account_name} in resource group #{GROUP_NAME}"
storage_create_params = StorageModels::StorageAccountCreateParameters.new.tap do |account|
    account.location = WEST_US
    account.sku = StorageModels::Sku.new.tap do |sku|
        sku.name = StorageModels::SkuName::PremiumLRS
        sku.tier = StorageModels::SkuTier::Premium
    end
    account.kind = StorageModels::Kind::Storage  
    account.encryption = StorageModels::Encryption.new.tap do |encrypt|
        encrypt.services = StorageModels::EncryptionServices.new.tap do |services|
            services.blob = StorageModels::EncryptionService.new.tap do |service|
                service.enabled = false
            end
        end
    end
end
print_item storage_account = storage_client.storage_accounts.create(GROUP_NAME, storage_account_name, storage_create_params)

Create a virtual network

puts 'Creating a virtual network for the VM'
vnet_create_params = NetworkModels::VirtualNetwork.new.tap do |vnet|
    vnet.location = WEST_US
    vnet.address_space = NetworkModels::AddressSpace.new.tap do |addr_space|
        addr_space.address_prefixes = ['10.0.0.0/16']
    end
    vnet.dhcp_options = NetworkModels::DhcpOptions.new.tap do |dhcp|
        dhcp.dns_servers = ['8.8.8.8']
    end
    vnet.subnets = [
        NetworkModels::Subnet.new.tap do |subnet|
            subnet.name = 'rubySampleSubnet'
            subnet.address_prefix = '10.0.0.0/24'
        end
    ]
end
print_item vnet = network_client.virtual_networks.create_or_update(GROUP_NAME, 'sample-ruby-vnet', vnet_create_params)

Create a public IP address

puts 'Creating a public IP address for the VM'
public_ip_params = NetworkModels::PublicIPAddress.new.tap do |ip|
    ip.location = WEST_US
    ip.public_ipallocation_method = NetworkModels::IPAllocationMethod::Dynamic
    ip.dns_settings = NetworkModels::PublicIPAddressDnsSettings.new.tap do |dns|
        dns.domain_name_label = 'sample-ruby-domain-name-label'
    end
end
print_item public_ip = network_client.public_ipaddresses.create_or_update(GROUP_NAME, 'sample-ruby-pubip', public_ip_params)

Create a virtual machine

print_item nic = network_client.network_interfaces.create_or_update(
    GROUP_NAME,
    "sample-ruby-nic-#{vm_name}",
    NetworkModels::NetworkInterface.new.tap do |interface|
        interface.location = WEST_US
        interface.ip_configurations = [
            NetworkModels::NetworkInterfaceIPConfiguration.new.tap do |nic_conf|
                nic_conf.name = "sample-ruby-nic-#{vm_name}"
                nic_conf.private_ipallocation_method = NetworkModels::IPAllocationMethod::Dynamic
                nic_conf.subnet = subnet
                nic_conf.public_ipaddress = public_ip
            end
        ]
    end
)
puts 'Creating a Ubuntu 16.04.0-LTS Standard DS2 V2 virtual machine w/ a public IP'
vm_create_params = ComputeModels::VirtualMachine.new.tap do |vm|
    vm.location = location
    vm.os_profile = ComputeModels::OSProfile.new.tap do |os_profile|
        os_profile.computer_name = vm_name
        os_profile.admin_username = 'notAdmin'
        os_profile.admin_password = 'Pa$$w0rd92'
    end
    vm.storage_profile = ComputeModels::StorageProfile.new.tap do |store_profile|
        store_profile.image_reference = ComputeModels::ImageReference.new.tap do |ref|
            ref.publisher = 'canonical'
            ref.offer = 'UbuntuServer'
            ref.sku = '16.04.0-LTS'
            ref.version = 'latest'
        end
        store_profile.os_disk = ComputeModels::OSDisk.new.tap do |os_disk|
            os_disk.name = "sample-os-disk-#{vm_name}"
            os_disk.caching = ComputeModels::CachingTypes::None
            os_disk.create_option = ComputeModels::DiskCreateOptionTypes::FromImage
            os_disk.vhd = ComputeModels::VirtualHardDisk.new.tap do |vhd|
                vhd.uri = "https://#{storage_acct.name}.blob.core.windows.net/rubycontainer/#{vm_name}.vhd"
            end
        end
    end
    vm.hardware_profile = ComputeModels::HardwareProfile.new.tap do |hardware|
        hardware.vm_size = ComputeModels::VirtualMachineSizeTypes::StandardDS2V2
    end
    vm.network_profile = ComputeModels::NetworkProfile.new.tap do |net_profile|
        net_profile.network_interfaces = [
            ComputeModels::NetworkInterfaceReference.new.tap do |ref|
                ref.id = nic.id
                ref.primary = true
            end
        ]
    end
end
ssh_pub_location = File.expand_path('~/.ssh/id_rsa.pub')
if File.exists? ssh_pub_location
    puts "Found SSH public key in #{ssh_pub_location}. Disabling password and enabling SSH authentication."
    key_data = File.read(ssh_pub_location)
    puts "Using public key: #{key_data}"
    vm_create_params.os_profile.linux_configuration = ComputeModels::LinuxConfiguration.new.tap do |linux|
        linux.disable_password_authentication = true
        linux.ssh = ComputeModels::SshConfiguration.new.tap do |ssh_config|
            ssh_config.public_keys = [
                ComputeModels::SshPublicKey.new.tap do |pub_key|
                    pub_key.key_data = key_data
                    pub_key.path = '/home/notAdmin/.ssh/authorized_keys'
                end
            ]
        end
    end
end
print_item vm = compute_client.virtual_machines.create_or_update(GROUP_NAME, "sample-ruby-vm-#{vm_name}", vm_create_params)
    vm
end

Stop the VM

compute_client.virtual_machines.power_off(GROUP_NAME, vm.name)

Start the VM

compute_client.virtual_machines.start(GROUP_NAME, vm.name)

Restart the VM

compute_client.virtual_machines.restart(GROUP_NAME, vm.name)

Delete the resources

resource_client.resource_groups.delete(GROUP_NAME)