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Azure compute services (2) - Coggle Diagram

- - - - Total control over the operating system (OS).
        
        The ability to run custom software.
        
        To use custom hosting configurations.
      - Move to the cloud with VMs
        
        VMs are also an excellent choice when you move from a physical server to the cloud (also known as lift and shift). You can create an image of the physical server and host it within a VM with little or no changes. Just like a physical on-premises server, you must maintain the VM. You update the installed OS and the software it runs.
    - - Containers are lightweight, virtualized application environments.
    - - App Service
        is a PaaS
    - - Functions are ideal when you're concerned only about the code running your service and not the underlying platform or infrastructure. They're commonly used when you need to perform work in response to an event (often via a REST request), timer, or message from another Azure service, and when that work can be completed quickly, within seconds or less.
    - - Virtual machine scale sets are an Azure compute resource that you can use to deploy and manage a set of identical VMs. With all VMs configured the same, virtual machine scale sets are designed to support true autoscale. No pre-provisioning of VMs is required. For this reason, it's easier to build large-scale services targeting big compute, big data, and containerized workloads. As demand goes up, more VM instances can be added. As demand goes down, VM instances can be removed. The process can be manual, automated, or a combination of both.
      - Azure Batch is another service for scale
        
        Azure Batch enables large-scale parallel and high-performance computing (HPC) batch jobs with the ability to scale to tens, hundreds, or thousands of VMs.
        
        Starts a pool of compute VMs for you.
        
        Installs applications and staging data.
        
        Runs jobs with as many tasks as you have.
        
        Identifies failures.
        
        Requeues work.
        
        Scales down the pool as work completes.
- - - - Timers, for example, if a function needs to run every day at 10:00 AM UTC.
      - HTTP, for example, API and webhook scenarios.
      - Queues, for example, with order processing.
- - - - Bring your eligible Windows or Microsoft 365 license to get Windows 10 Enterprise and Windows 7 Enterprise desktops and apps at no additional cost.
        
        If you're an eligible Microsoft Remote Desktop Services Client Access License customer, Windows Server Remote Desktop Services desktops and apps are available at no additional cost.
    - - Buy one-year or three-year Azure Reserved Virtual Machine Instances to save you up to 72 percent versus pay-as-you-go pricing. You can pay for a reservation up front or monthly. Reservations provide a billing discount and don't affect the runtime state of your resources.