AWS Security Cookbook

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Let's quickly go through some important concepts related to AMIs:

• Multiple EC2 instances can be launched from a single AMI.
• AMIs are specific to a region, but you can copy them across regions.
• While launching an instance, we can choose between the AMIs suggested by Amazon, our own AMIs, AWS Marketplace AMIs, and community AMIs. We can also filter the list based on additional parameters.
• We should only use public AMIs that we trust. We can check ratings for AMIs before using them.
• AMIs are stored in S3. Hence, we will be charged based on S3 pricing, which is also dependent on our free tier eligibility and usage. However, we won't be able to see the AMI or its bucket from the S3 console.
• By default, AMIs are private for our ...