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When launching a new EC2 instance, I can select between 2 different Amazon Linux images:
What is the difference?
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The EC2 is used for creating the virtual server instance. The AMI is the EC2 virtual machines image. ECS provides container services such as docker and the AWS lambda is used to run the code without a server.
The Amazon Linux AMI is a supported and maintained Linux image provided by Amazon Web Services for use on Amazon Elastic Compute Cloud (Amazon EC2). It is designed to provide a stable, secure, and high performance execution environment for applications running on Amazon EC2.
An Amazon Machine Image (AMI) is a master image for the creation of virtual servers -- known as EC2 instances -- in the Amazon Web Services (AWS) environment. The machine images are like templates that are configured with an operating system and other software that determine the user's operating environment.
All AMIs are categorized as either backed by Amazon EBS or backed by instance store. Amazon EBS-backed AMI – The root device for an instance launched from the AMI is an Amazon Elastic Block Store (Amazon EBS) volume created from an Amazon EBS snapshot.
The first option is your image is a more stripped down/bare bones Linux image while the second includes commonly used packages/tools that are used when creating hosted services (such as AWS command line tools and Ruby).
I have an Amazon Linux 2 AMI (HVM), SSD Volume Type and you can see that extra packages like java and ruby are not installed.
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