ReadOnlyAccessのDynamoDB部分

抜粋

        "ds:Verify*",
        "dynamodb:BatchGet*",
        "dynamodb:Describe*",
        "dynamodb:Get*",
        "dynamodb:List*",
        "dynamodb:PartiQLSelect",
        "dynamodb:Query",
        "dynamodb:Scan",
        "ec2:Describe*",

みたいな感じなので、書き込みはできないのはもちろん、ExportTableToPointInTimeやImportTableもできない

docs.aws.amazon.com

docs.aws.amazon.com