2023102823483030 AWS EC2

AWS EC2

• AMI: includes the operating system, storage mapping, architecture type, launch permissions, and any additional preinstalled software applications.
• EC2 instances are live instantiations (or versions) of what is defined in an AMI.
• AWS has commonly used AMIs created by AWS and AWS in marketplace that you can use
• You can create your own AMIs even from your EC2 instance
• AMI id is unique for each AWS region
• EC2 settings
  • instance type 2023102419072828 Amazon EC2 Instance Types Families
  • network
  • storage.
• EC2 by default us launched in default VPC 202310290003033 AWS default VPS

EC2 lifecycle

2023102900133333 AWS EC2 Lifecycle

HA

• For high availability, consider using at least two EC2 instances in two separate Availability Zones. ­­

References

1. https://explore.skillbuilder.aws/learn/course/external/view/elearning/1851/aws-technical-essentials?da=sec&sec=prep Module 2
2. AWS website: Amazon EC2(opens in a new tab)
3. AWS user guide: Amazon Machine Images (AMI)(opens in a new tab)(opens in a new tab)
4. AWS user guide: Creatie an Amazon EBS-Backed Linux AMI(opens in a new tab)
5. AWS user guide: What Is EC2 Image Builder?(opens in a new tab)(opens in a new tab)
6. AWS user guide: Default VPCs(opens in a new tab)
7. AWS whitepaper: Reliability Pillar - AWS Well-Architected Framework