如何解决具有两个以上列表的Terraset setproduct函数
在以下情况下,如何将Terraform setproduct函数与两个以上的列表一起使用,或者是否有其他方法可以达到最终结果。
在main.tf文件中,我有以下数据。
$ cat main.tf
variable "nodes" {
default = ["1","2","3"]
}
variable "ebs_volumes" {
default = [
{
ebs_name = "/dev/xdba"
ebs_size = "50"
ebs_type = "gp2"
},{
ebs_name = "/dev/xdbb"
ebs_size = "20"
ebs_type = "gp2"
}
]
}
locals {
ebs_name = [for i in var.ebs_volumes : i.ebs_name]
ebs_size = [for i in var.ebs_volumes : i.ebs_size]
ebs_type = [for i in var.ebs_volumes : i.ebs_type]
}
locals {
node_disks = { for pair in setproduct(var.nodes,local.ebs_name) : "${pair[0]}:${pair[1]}" => {
node_index = pair[0]
ebs_name = pair[1]
ebs_size = [for i in var.ebs_volumes : i.ebs_size]
ebs_type = [for i in var.ebs_volumes : i.ebs_type]
} }
}
output "combined" {
value = local.node_disks
}
当我运行Terraform Apply时,我得到以下结果
$ terraform apply
Apply complete! Resources: 0 added,0 changed,0 destroyed.
Outputs:
combined = {
"1:/dev/xdba" = {
"ebs_name" = "/dev/xdba"
"ebs_size" = [
"50","20",]
"ebs_type" = [
"gp2","gp2",]
"node_index" = "1"
}
"1:/dev/xdbb" = {
"ebs_name" = "/dev/xdbb"
"ebs_size" = [
"50",]
"node_index" = "1"
}
"2:/dev/xdba" = {
"ebs_name" = "/dev/xdba"
"ebs_size" = [
"50",]
"node_index" = "2"
}
"2:/dev/xdbb" = {
"ebs_name" = "/dev/xdbb"
"ebs_size" = [
"50",]
"node_index" = "2"
}
"3:/dev/xdba" = {
"ebs_name" = "/dev/xdba"
"ebs_size" = [
"50",]
"node_index" = "3"
}
"3:/dev/xdbb" = {
"ebs_name" = "/dev/xdbb"
"ebs_size" = [
"50",]
"node_index" = "3"
}
}
相反,我希望能够得到如下所示的结果(伪代码):
combined = {
"1:/dev/xvdb" = {
"disk_dev_path" = "/dev/xvda"
"node_name" = "1"
"disk_size" = "10"
"disk_type" = "gp2"
}
"1:/dev/xvdc" = {
"disk_dev_path" = "/dev/xvdb"
"node_name" = "1"
"disk_size" = "30"
"disk_type" = "gp2"
}
"2:/dev/xvdb" = {
"disk_dev_path" = "/dev/xvda"
"node_name" = "2"
"disk_size" = "10"
"disk_type" = "gp2"
}
"2:/dev/xvdc" = {
"disk_dev_path" = "/dev/xvdb"
"node_name" = "2"
"disk_size" = "30"
"disk_type" = "gp2"
}
"3:/dev/xvdb" = {
"disk_dev_path" = "/dev/xvda"
"node_name" = "3"
"disk_size" = "10"
"disk_type" = "gp2"
}
"3:/dev/xvdc" = {
"disk_dev_path" = "/dev/xvdb"
"node_name" = "3"
"disk_size" = "30"
"disk_type" = "gp2"
}
}
如何实现?
我需要这样做,以便在 for_each 中使用它来创建ec2实例和ebs卷,并在用户使用我们的ec2模块在变量中添加输入时分别附加它们。
解决方法
如果可以的话,也许可以使用带有flatten
的 double for-loop 。对我来说似乎更自然。
下面是一个工作示例:
variable "nodes" {
default = ["1","2","3"]
}
variable "ebs_volumes" {
default = [
{
ebs_name = "/dev/xdba"
ebs_size = "50"
ebs_type = "gp2"
},{
ebs_name = "/dev/xdbb"
ebs_size = "20"
ebs_type = "gp2"
}
]
}
locals {
node_disks2 = {for idx,value in flatten([for node in var.nodes:
[for volume in var.ebs_volumes:
{
node_index = node
ebs_name = volume.ebs_name
ebs_size = volume.ebs_size
ebs_type = volume.ebs_type
}]
]): idx => value}
}
output "combined" {
value = local.node_disks2
}
输出:
ombined = {
"0" = {
"ebs_name" = "/dev/xdba"
"ebs_size" = "50"
"ebs_type" = "gp2"
"node_index" = "1"
}
"1" = {
"ebs_name" = "/dev/xdbb"
"ebs_size" = "20"
"ebs_type" = "gp2"
"node_index" = "1"
}
"2" = {
"ebs_name" = "/dev/xdba"
"ebs_size" = "50"
"ebs_type" = "gp2"
"node_index" = "2"
}
"3" = {
"ebs_name" = "/dev/xdbb"
"ebs_size" = "20"
"ebs_type" = "gp2"
"node_index" = "2"
}
"4" = {
"ebs_name" = "/dev/xdba"
"ebs_size" = "50"
"ebs_type" = "gp2"
"node_index" = "3"
}
"5" = {
"ebs_name" = "/dev/xdbb"
"ebs_size" = "20"
"ebs_type" = "gp2"
"node_index" = "3"
}
}
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