EC2 Metadata

Links: 101 AWS SAA Index

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• We can query a URL from the EC2 instance to get more information about the instance.
• The URL is http://169.254.169.254/latest/meta-data
• We can query details like the instance ID, public IP etc.

You can retrieve the IAM Role name from the metadata, but you CANNOT retrieve the IAM Policy.

• When a role is attached to the EC2 machine it gets temporary credentials. It queries these credentials from this end point and to execute commands from the CLI.
• We can also use instance meta data query tool. The Instance Metadata Query tool allows you to query the instance metadata without having to type out the full URI or category names.

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Last updated: 2022-04-20