Why does an EC2 service use the wrong AWS identity after an instance role is attached?

0 reputation · 26 Jan 2022, 10:47 UTC

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In this example, a team attaches the intended instance profile to EC2. A diagnostic command in a clean shell shows the expected role, but the application still identifies itself as an older IAM user. The system service definition contains legacy AWS environment variables. What should change?

Environment

Editorial worked example. See the question for the scenario and assumptions.

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Why does an EC2 service use the wrong AWS identity after an instance role is attached?

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