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An Amazon Machine Image (AMI) is a pre-configured template used to launch EC2 instances. It contains the operating system, application software, and configuration needed to boot a server. Understanding AMIs is essential for repeatable, reliable infrastructure.
An AMI is a blueprint for an EC2 instance. It packages:
When you launch an instance, the AMI is used to create the root volume (and any additional volumes defined in the block device mapping). The instance then boots from that volume.
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