AWS Instance Metadata Service (IMDS)

• https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/configuring-instance-metadata-service.html

• aws ec2 modify-instance-metadata-options
• IMDSv2

If you use Auto Scaling groups and you need to require the use of IMDSv2 on all new instances, your Auto Scaling groups must use launch templates.

Related

• Azure Instance Metadata Service
• Instance metadata and user data
• ec2-imdsv2-check, the rule is NON_COMPLIANT if the HttpTokens is set to optional.
• aws ec2 describe-instances | grep HttpTokens

See also

• IMDS, IMDS versions (IMDSv2), IMDS initiate session, ec2-imdsv2-check, aws ec2 modify-instance-metadata-options, /latest/meta-data, /latest/user-data, modify-instance-metadata-defaults
• AWS EC2, Amazon EC2 API, aws ec2, AWS::EC2, Amazon EC2 Spot Instances, CPU credits, Instance type, EC2 limitations, 169.254.169.254, Instance metadata and user data (IMDS), InstanceType, InstanceId, Amazon EC2 Auto Scaling, AWS EC2 Instance Connect, launch template, lifecycle, AWS Security group (SG), Amazon EC2 Recycle Bin, Amazon EC2 Mac Instances, Global View