AWS Instance Metadata Service (IMDS)

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Wikipedia:AWS Instance Metadata Service it is a service provided by AWS that allows EC2 instances to access metadata about themselves and their environment.



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.

  • Datadog AWS Integration Billing: If your EC2 instances are configured to require the use of Instance Metadata Service Version 2 (IMDSv2), then you must set the parameter ec2_prefer_imdsv2 to true in your Datadog agent configuration to avoid double-billing.

Metadata Endpoint[edit]

http://169.254.169.254/latest/meta-data/

Example[edit]

 TOKEN=`curl -X PUT "http://169.254.169.254/latest/api/token" -H "X-aws-ec2-metadata-token-ttl-seconds: 21600"` \ && curl -H "X-aws-ec2-metadata-token: $TOKEN" -v http://169.254.169.254/latest/user-data

Activities[edit]

Related[edit]

See also[edit]

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