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metadata-and-userdata.md

File metadata and controls

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EC2 Metadata and User data

  • EC2 metadata is data about your EC2 instance

    • It can include private and public IP addresses, hostnames, security groups, etc.

  • You can use the curl command to query EC2 metadata

    • curl http://169.254.169.25/latest/meta-data/

  • User data is bootstrap scripts

  • You can use bootstrap scripts to access metadata