无法启动计数为1的ec2实例，并且从for_each循环创建了子网(2)

Question

子网是从下面的代码创建的:

resource "aws_subnet" "Private" {
for_each          = var.subnet_cidrs_private
vpc_id            = aws_vpc.vpc.id
cidr_block        = each.value
availability_zone = each.key
tags = {
Name = format("%s-%s-%s", var.environment, "Pri-Subnet", substr(each.key, -2, -1))
}
}

尝试创建一个带有count参数的实例。

resource "aws_instance" "visualapp" {
instance_type          = "t2.micro"
ami                    = var.visualapp-ami
key_name               = var.key_pair
vpc_security_group_ids = [aws_security_group.visualapp.id]
subnet_id              = element(aws_subnet.Private[*].id, count.index)
count                  = 1
tags = {
Name = format("%s-%s", var.environment, "mage-varnish-${count.index + 1}")
}
}

得到以下错误:

subnet_id = element(aws_subnet.Private[*].id, count.index)
This object does not have an attribute named "id".

变量:

variable "subnet_cidrs_private" {
default = {
eu-west-1a = "172.26.3.0/24",
eu-west-1b = "172.26.4.0/24"
}
}

有人能帮我吗?

Answer 1

如果使用count，则使用element。既然您已经使用了for_each，那么您需要先使用values:

subnet_id = element(values(aws_subnet.Private)[*].id, count.index)