associateServiceRoleToAccount
Associates a Greengrass service role with IoT Greengrass for your Amazon Web Services account in this Amazon Web Services Region. IoT Greengrass uses this role to verify the identity of client devices and manage core device connectivity information. The role must include the AWSGreengrassResourceAccessRolePolicy managed policy or a custom policy that defines equivalent permissions for the IoT Greengrass features that you use. For more information, see Greengrass service role in the IoT Greengrass Version 2 Developer Guide.