Virtual Machines

• This is a basic resource & most widely used resource in cloud compute.
• Virtual Machines offered by Azure are called Azure vms.
• Azure offers VMs in various types and sizes.
• Each type has been optimized to suit to some purpose.
• In Azure we have different vm purchasing options.
• Broadly azure supports windows & linux vms

How Azure Works?

• To Create Virtual Machines Azure uses Hypervisor (HyperV)
• These Hypervisors are available on all physical servers in Azure regions
• Every rack will have a fabric controller.
• The Fabric controllers are orchestrated by an orchestrator, which instructs creation of resources like vm’s
• When an user requests for a vm in that region the request is passed to orchestrator through API, and then Orchestrator will send the request to suitable fabric controller to create a vm on Some physical machine

Terms

• Every physical machines needs some operating system which is installed, in the case of virtual machines we have VM Images. Azure also uses the same terminology, when we create a vm, we will be asked to select Image.
• OS in the Azure VMs are selected by the Image you choose while creating vm.
• Azure Provides VM Images for standard Linux, Windows OS and Azure also has market place where you can find third party images, You can also create your custom vm images.
• Azure Gives options to set credentials to your vm while creating VM.
• Every VM needs a disk and network for communication.
• For Azure free trail accounts we can use 750 hours of linux vm and 750 hours of windows vm of size (B1s) for free (12 months)

Lets create a windows 2016 server vm

• Refer the below images
• To connect to this vm use connect option and download rdp file
• Now lets install IIS Server on Windows VM
• Open Powershell as an admin and execute

Install-WindowsFeature -name Web-Server -IncludeManagementTools

• Navigate to the http://<publicip-windowsvm&gt;

Lets create a ubuntu vm

• Watch Here
• To connect to linux machines we need ssh tools, Please watch here
• Connect to ubuntu instance using ssh and install apache server

sudo apt-get update
sudo apt-get install apache2 -y

• Navigate to the http://<publicip-linuxvm&gt;
• Delete the resource group once you have done with this activity.