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Amazon Machine Images (AMIs)

Thu, Jul 20, 2017

An Amazon Machine Image (AMI) provides the information required to launch an instance, which is a virtual server in the cloud. You specify an AMI when you launch an instance,and you can launch as many instances from the AMI as you need.

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An AMI includes the following:

  • A template for the root volume for the instance
  • Launch permissions that control which AWS accounts can use the AMI to launch instances
  • A block device mapping that specifies the volumes to attach to the instance when it’s launched

All AMIs are based on x86 OSs, either Linux or Windows.