Terraform如何在路由表中获取动态路由

问题描述

Terraform 如何根据工作空间在路由表中获取动态路由

UAT

资源aws_vpn_gateway"micorsoft_vpn_gw"{vpc_id = aws_vpc.default.id标签 = {名称 = 微软"}}资源aws_route_table"私人"{vpc_id = aws_vpc.default.id路线 {cidr_block = "0.0.0.0/0";nat_gateway_id = aws_nat_gateway.default.id}路线 {cidr_block = "0.0.0.0/0";gateway_id = aws_vpn_gateway.micorsoft_vpn_gw.id}标签 = 合并(地图(名称"，${var.namespace}-${var.environment}")，var.tags)}

开发

资源aws_route_table"私人"{vpc_id = aws_vpc.default.id路线 {cidr_block = "0.0.0.0/0";nat_gateway_id = aws_nat_gateway.default.id}标签 = 合并(地图(名称"，${var.namespace}-${var.environment}")，var.tags)}

如何实现这是基于工作空间/环境的动态方式

解决方案

您可以使用 动态块 .

资源aws_route_table"私人"{vpc_id = aws_vpc.default.id路线 {cidr_block = "0.0.0.0/0";nat_gateway_id = aws_nat_gateway.default.id}动态路线"{for_each = var.env == "DEV";?toset([]) : toset([1])内容 {cidr_block = "0.0.0.0/0";gateway_id = aws_vpn_gateway.micorsoft_vpn_gw.id}}标签 = 合并(地图(名称"，${var.namespace}-${var.environment}")，var.tags)}

基本上，当 var.env 为 DEV 时，不会创建第二个 route.

Terraform how to get dynamic route in route table based on the workspace

resource "aws_vpn_gateway" "micorsoft_vpn_gw" {
  vpc_id = aws_vpc.default.id

  tags = {
    Name = "micorsoft"
  }
}

resource "aws_route_table" "private" {
  vpc_id = aws_vpc.default.id
  route {
    cidr_block     = "0.0.0.0/0"
    nat_gateway_id = aws_nat_gateway.default.id
  }

  route {
    cidr_block     = "0.0.0.0/0"
    gateway_id     =  aws_vpn_gateway.micorsoft_vpn_gw.id
  }

  tags = merge(map("Name", "${var.namespace}-${var.environment}"), var.tags)
}

resource "aws_route_table" "private" {
  vpc_id = aws_vpc.default.id
  route {
    cidr_block     = "0.0.0.0/0"
    nat_gateway_id = aws_nat_gateway.default.id
  }

  tags = merge(map("Name", "${var.namespace}-${var.environment}"), var.tags)
}

How to achieve this is dynamic way based on workdspace/environment

解决方案

You can use dynamic block for that.

resource "aws_route_table" "private" {
  vpc_id = aws_vpc.default.id

  route {
    cidr_block     = "0.0.0.0/0"
    nat_gateway_id = aws_nat_gateway.default.id
  }

  dynamic "route" {
      for_each = var.env == "DEV" ? toset([]) : toset([1])
      content {
        cidr_block     = "0.0.0.0/0"
        gateway_id     =  aws_vpn_gateway.micorsoft_vpn_gw.id
      }
  }

  tags = merge(map("Name", "${var.namespace}-${var.environment}"), var.tags)
}

Basically, when the var.env is DEV, no second route will be created.

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