Microsoft Azure: Compute
As part of the Microsoft Enterprise Skills Initiative I am looking into different topics in Azure and summarize my learnings. This post is about Azure Compute
Let’s dig into some of the most prominent services offered by [Azure]
Azure virtual machines
Virtual Machines allows you to create Linux and Windows virtual machines using based on one of the available images. A VM Azure resource consists of several elements:
- The VM which is
- based on an os image
- has a defined Size i.e. memory, cpu, gpu to be used
- sits in a dedicate location
- Storage account for the disks
- virtual machines will have at least two virtual hard disks (VHDs), one for the operating system and the other one a temporary storage.
- additional disks can be added
- Network interface to communicate on the network
- the interface which connect to the VNets
- [Virtual networks (VNets)] (shared with other VMs and services)
- [Virtual networks (VNets)] are used in Azure to provide private connectivity between Azure Virtual Machines and other Azure services.
- [Network Security Groups (NSGs)] to secure the network traffic
- Software firewalls to control the traffic flow to and from subnets and to and from VMs. It consist of rules and allow filtering inbound and outbound traffic on the VNet.
- Public Internet address (optional)
- Public addresses allow you to connect from anywhere to your instance e.g. using SSH
The following picture visualizes the relation VNets, NSGs and VMs:
Before creating a VM you should think about the networking and network segregation