EC2实例创建

Question

我试图创建多个EC2实例，但它们有不同的AMI和实例类型，并且应该位于不同的可用性区域，如下所示。我尝试了几种不同的方法，但都无法成功。

locals {
az_ami = [
{Name = "host1", type = "t3a.medium", az = "eu_west_2a", ami_id = "ami-01234abc"},
{Name = "host2", type = "t3a.micro", az = "eu_west_2b", ami_id = "ami-01234def"},
{Name = "host3", type = "t3a.medium", az = "eu_west_2b", ami_id = "ami-01234gef"},
{Name = "host4", type = "t3a.medium", az = "eu_west_2a", ami_id = "ami-01234hty"}
]
}
#variable "ami_id" {}
resource "aws_instance" "myinstance" {
count    = length(local.az_ami)
for_each = [{ for i in local.az_ami: }]
dynamic "ec2_instance"{
for_each = local.az_ami[count.index]
content {
instance_type     = "ec2_instance.value.Name"
availability_zone = "ec2_instance.value.az"
ami               = "ec2_instance.value.ami_id"
}
}
}

Answer 1

如果您想使用count，那么它应该是：

resource "aws_instance" "myinstance" {
count             = length(local.az_ami)
instance_type     = local.az_ami[count.index].type
availability_zone = local.az_ami[count.index].az
ami               = local.az_ami[count.index].ami_id

tags = {
Name = local.az_ami[count.index].Name
}
}

但有了for_each，它可能是：

resource "aws_instance" "myinstance2" {
for_each    = {for idx, val in local.az_ami: idx => val}
instance_type     = each.value.type
availability_zone = each.value.az
ami               = each.value.ami_id

tags = {
Name = each.value.Name
}
}