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amazon-web-servicesaws-fis

AWS Fault Injection Simulator returning 'Not authorized to perform the required action.'

I am trying to use AWS FIS to stress CPU on an ubuntu VM thru ssm send command (aws:ssm:send-command/AWSFIS-Run-CPU-Stress).

When I ssh to the VM and use 'top' command I see the CPU shooting up successfully from 0.3% to 99.9% but surprisingly the FIS experiment ends up in 'failed' state with a tag:'Not authorized to perform the required action'.

Since the cpu definitely increased and I even see COMMAND name 'stress-ng-cpu' against the 99.9% cpu entry, any idea why it is still saying 'not authorized' and ending up in failed status?

Thanks.

Solution

  • It worked after I completely removed mine and applied the permissions as shown here: https://chaos-engineering.workshop.aws/en/030_basic_content/030_basic_experiment/10-permissions.html

    Posting this for the benefit of others who might run into similar issues.