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Why is "sts:AssumeRole" permission now required in IAM permission policy?

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cloud-volumes-ontap-cvo
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cloud
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Applies to

  • Cloud Volumes ONTAP (CVO)
  • AWS
  • CVO Mediator

Answer

The mediator now requires the "sts:AssumeRole" permission in the IAM permissions policy for non-direct routing(CVO AWS, not FSx), assume role is needed by mediator to update MAZ route tables for shared VPCs and their shared subnets(route tables). If direct-routing was enabled in CVO AWS, the permissions including assume role would be needed by ONTAP nodes to update shared routes(to update Route Tables for shared subnets and VPC). If there are no shared subnets used, assume role permissions should not be needed.

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