当我运行Terraform apply和之后的计划时，总是会对安全组进行另一项出色的修改。我不太明白该怎么读。有人可以照亮吗？
terraform plan
~ module.emr.aws_security_group.ds-emr-master
ingress.#: "3" => "4"
ingress.2364643915.cidr_blocks.#: "0" => "2"
ingress.2364643915.cidr_blocks.0: "" => "34.x.x.x/32"
ingress.2364643915.cidr_blocks.1: "" => "172.x.x.x/32"
ingress.2364643915.from_port: "" => "0"
ingress.2364643915.protocol: "" => "-1"
ingress.2364643915.self: "" => "false"
ingress.2364643915.to_port: "" => "0"
ingress.3989612637.cidr_blocks.#: "2" => "0"
ingress.3989612637.cidr_blocks.0: "34.x.x.x/32" => ""
ingress.3989612637.cidr_blocks.1: "172.x.x.x/32" => ""
ingress.3989612637.protocol: "-1" => ""
ingress.3989612637.security_groups.#: "1" => "0"
ingress.3989612637.security_groups.3719875660: "sg-xxxxx" => ""
ingress.4127332019.from_port: "" => "0"
ingress.4127332019.protocol: "" => "-1"
ingress.4127332019.security_groups.#: "0" => "1"
ingress.4127332019.security_groups.3719875660: "" => "sg-xxxxx"
ingress.4127332019.self: "" => "false"
ingress.4127332019.to_port: "" => "0"