用于 eu-west-1 中资源的 us-east-1 中的 Terraform AWS ACM 证书 [英] Terraform AWS ACM certificates in us-east-1 for resources in eu-west-1

问题描述

我有一个 terraform 模块，主要在 eu-west-1 中提供资源.我需要一个 ACM 证书才能附加到 Cloudfront 发行版.证书必须在 us-east-1 中提供.

I have a terraform module that provisions resources primarily in eu-west-1. I need an ACM certificate to attach to a Cloudfront distribution. The certificate must be provisioned in us-east-1.

我因此配置了两个提供程序:

I have thus configured two providers:

provider "aws" {
  version = "~> 1.0"
  region = "eu-west-1"
}

provider "aws" {
  version = "~> 1.0"
  region = "us-east-1"
  alias = "us-east-1"
}

在我的模块中，我像这样提供证书:

In my module, I provision the certificate like so:

resource "aws_acm_certificate" "cert" {
  provider = "aws.us-east-1"
  domain_name = "${var.domain_name}"
  validation_method = "DNS"
  tags = "${var.tags}"

  lifecycle {
    create_before_destroy = true
  }
}

问题 #1:我尝试使用以下方法导入现有 ACM 证书:

Problem #1: I tried to import my existing ACM certificate using:

terraform import module.mymod.aws_acm_certificate.cert arn:aws:acm:us-east-1:xyz:certificate/uuid

这失败了:找不到带有 id 的证书".terraform 是否在错误的区域中寻找?我通过 aws CLI 确认证书确实存在(例如 ARN 中没有拼写错误).

This fails with: "Could not find certificate with id". Is terraform looking in the wrong region? I confirmed with the aws CLI that the certificate does indeed exist (e.g. no typos in the ARN).

好的，所以我想我可以创建新证书.这确实有效，我现在有两个证书，但是我遇到了问题 #2:

Ok, so I figured I could just create new certificate. This does work, and I now have two certificates, but I then run into problem #2:

resource "aws_route53_record" "cert_validation" {
  name = "${aws_acm_certificate.cert.domain_validation_options.0.resource_record_name}"
  type = "${aws_acm_certificate.cert.domain_validation_options.0.resource_record_type}"
  zone_id = "${data.aws_route53_zone.zone.id}"
  records = ["${aws_acm_certificate.cert.domain_validation_options.0.resource_record_value}"]
  ttl = 60
}

这会尝试为 ACM 设置 DNS 验证.托管区域存在于 eu-west-1 中，所以我预计这里会出现问题.但是，这仍然因找不到证书..."而失败，我假设 terraform 对区域感到困惑.我也尝试将 provider = "aws.us-east-1" 添加到此资源，但仍然以同样的方式失败.

This attempts to set up DNS validation for ACM. The hosted zone exists in eu-west-1, so I'm expecting problems here. However, this still fails with "Could not find certificate ...", and I'm assuming terraform gets confused about regions. I tried adding provider = "aws.us-east-1" to this resource as well, but it still fails the same way.

因此，无论我做什么，Terraform 都无法找到我的证书，即使它自己创建了它.我做错了吗?

So, no matter what I do, Terraform is unable to locate my certificate, even it has created it itself. Am I doing something wrong?

推荐答案

原来我的问题是 aws_acm_certificate_validation.通过将提供者指定在与证书相同的区域，一切都解决了.

Turns out my problem was with aws_acm_certificate_validation. By specifying the provider in the same region as the certificate, it was all resolved.

resource "aws_acm_certificate_validation" "cert" {
  provider = "aws.us-east-1" # <== Add this
  certificate_arn = "${aws_acm_certificate.cert.arn}"
  validation_record_fqdns = ["${aws_route53_record.cert_validation.fqdn}"]
}

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