ASG和其他资源(例如EFS)上的地形动态标签

时间:2018-07-06 09:43:20

标签: terraform terraform-provider-aws

我想在aws_autoscaling_group资源上获取动态标签,但是与文档中的示例不同,我现在还没有多少标签,标签必须与其他资源共享。在下面的示例中将是EFS,但基本上所有其他AWS资源都会受到影响。

因此设置了以下几行:

variable "tags" {
  type = "map"

  default = {
    tag1 = "value1"
    tag2 = "value2"
  }
}

resource "aws_autoscaling_group" "asg" {
  name                 = "test-asg"
  launch_configuration = "test-lc"
  min_size             = 1
  max_size             = 1
  min_elb_capacity     = 1
  vpc_zone_identifier  = ["subnet-1234"]
  tags                 = <code_here>
}

resource "aws_efs_file_system" "foo" {
  creation_token = "my-product"
  tags           = "${var.tags}"
}

我提出了一个解决方案,该解决方案最多支持x个动态代码。不幸的是,它使用伪标签来填充未提供的标签,直到x

data "template_file" "test" {
  count    = "9"
  template = "key:@:$${key}:@:value:@:$${value}:@:propagate_at_launch:@:true"

  vars {
    key   = "${element(concat(keys(var.tags), list("unusedtag1", "unusedtag2","unusedtag3","unusedtag4","unusedtag5","unusedtag6","unusedtag7","unusedtag8","unusedtag9")), count.index)}"
    value = "${element(concat(values(var.tags), list("", "","","","","","","","")), count.index)}"
  }
}

locals{
  tag0 = "${split(":@:", data.template_file.test.0.rendered)}"
  tag1 = "${split(":@:", data.template_file.test.1.rendered)}"
  tag2 = "${split(":@:", data.template_file.test.2.rendered)}"
  tag3 = "${split(":@:", data.template_file.test.3.rendered)}"
  tag4 = "${split(":@:", data.template_file.test.4.rendered)}"
  tag5 = "${split(":@:", data.template_file.test.5.rendered)}"
  tag6 = "${split(":@:", data.template_file.test.6.rendered)}"
  tag7 = "${split(":@:", data.template_file.test.7.rendered)}"
  tag8 = "${split(":@:", data.template_file.test.8.rendered)}"

  tags = "${list(
          map(local.tag0[0],local.tag0[1],local.tag0[2],local.tag0[3],local.tag0[4],local.tag0[5]),
          map(local.tag1[0],local.tag1[1],local.tag1[2],local.tag1[3],local.tag1[4],local.tag1[5]),
          map(local.tag2[0],local.tag2[1],local.tag2[2],local.tag2[3],local.tag2[4],local.tag2[5]),
          map(local.tag3[0],local.tag3[1],local.tag3[2],local.tag3[3],local.tag3[4],local.tag3[5]),
          map(local.tag4[0],local.tag4[1],local.tag4[2],local.tag4[3],local.tag4[4],local.tag4[5]),
          map(local.tag5[0],local.tag5[1],local.tag5[2],local.tag5[3],local.tag5[4],local.tag5[5]),
          map(local.tag6[0],local.tag6[1],local.tag6[2],local.tag6[3],local.tag6[4],local.tag6[5]),
          map(local.tag7[0],local.tag7[1],local.tag7[2],local.tag7[3],local.tag7[4],local.tag7[5]),
          map(local.tag8[0],local.tag8[1],local.tag8[2],local.tag8[3],local.tag8[4],local.tag8[5]),
          )}"
}

有了ASG中的此代码,我可以使用tags = ["${local.tags}"]。在示例输入中,资源被标记为

tag1 = value1
tag2 = value2
unusedtag1 = 
unusedtag2 = 
unusedtag3 = 
unusedtag4 = 
unusedtag5 =
unusedtag6 = 
unusedtag7 =  

我想要一个解决方案

  • 动态
  • 不使用不必要的标签
  • 同时使用ASG和其他AWS资源
  • 仅将ASG上的所有标签传播到已启动的实例:propagate_on_launch = true

因此,解决方案必须采用现有标签并在其上添加propagate_at_launch键,然后再将其添加到ASG中。

2 个答案:

答案 0 :(得分:1)

然后,您可以将aws_ec2_tag资源与提供者属性ignore_tags结合使用,该资源也适用于非EC2资源。有关更多详细信息,请参阅我在该主题上所做的another answer

答案 1 :(得分:0)

您可以创建一个包含共享标签的本地地图...

locals {
  shared_tags = "${map(
    "Foo", "1",
    "Bar", "2"
  )}"
}

...然后将它们(带有可选的合并更新)应用于标记资源的属性:

resource "aws_autoscaling_group" "asg" {
  name                 = "test-asg"
  launch_configuration = "test-lc"
  min_size             = 1
  max_size             = 1
  min_elb_capacity     = 1
  vpc_zone_identifier  = ["subnet-1234"]
  tags                 = "${merge(local.shared_tags, map("Baz", "3"))}"
}

resource "aws_efs_file_system" "foo" {
  creation_token = "my-product"
  tags           = "${merge(local.shared_tags, map("Qux", "4"))}"
}

为此dwmkerridea道具。