字符串的 Terraform 插值语法 [英] Terraform interpolation syntax for string

问题描述

我正在尝试使用 terraform 为多个 DNS 记录制作 SSL 证书，遵循此处的文档:https://www.terraform.io/docs/providers/aws/r/acm_certificate_validation.html

I'm trying to make an SSL cert with terraform for multiple DNS records, following the docs here: https://www.terraform.io/docs/providers/aws/r/acm_certificate_validation.html

对于 Route 53 的记录，给出了这个例子:

For the Route 53 records is gives this example:

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
}

名称和类型中的 0 指的是他们提供的单个 DNS 条目.如果我将几个 subject_alternative_names 添加到 aws_acm_certificate 并添加几个手动 aws_route53_record 并将 0 替换为 1 2 等，它按我想要的方式工作.

Where the 0 in the name and type refer to the single DNS entry they've provided. If I add several subject_alternative_names to the aws_acm_certificate and add several manual aws_route53_record with the 0 replaced by 1 2 etc, it works the way I want.

我的问题是，我可以使用 Terraform 的 count 一次性完成此操作吗?我用 count = 5 尝试了这两件事:

My question is, can I do this in one go using Terraform's count. I've tried these two things with count = 5:

name = "${aws_acm_certificate.cert.domain_validation_options.*.resource_record_name[count.index]}"

这抱怨它得到的是一个字符串而不是一个列表

This complains that it's getting a string and not a list

name = "${aws_acm_certificate.cert.domain_validation_options.count.index.resource_record_name}"

这给了他们一个相同的名字，只是5".

This gives all of them the same name, and it's just "5".

设置:

resource "aws_route53_record" "cert_validation" {
    count = 5
    name = "${aws_acm_certificate.cert.domain_validation_options.*.resource_record_name[count.index]}"
    type = "CNAME"
    zone_id = "myzoneid"
    records = ["${aws_acm_certificate.cert.domain_validation_options.*.resource_record_value[count.index]}"]
    ttl = 60
}

错误:

* aws_route53_record.cert_validation: 5 error(s) occurred:

* aws_route53_record.cert_validation[4]: At column 95, line 1: invalid index operation into non-indexable type: TypeString in:

${aws_acm_certificate.cert.domain_validation_options.*.resource_record_value[count.index]}
* aws_route53_record.cert_validation[2]: At column 94, line 1: invalid index operation into non-indexable type: TypeString in:

${aws_acm_certificate.cert.domain_validation_options.*.resource_record_name[count.index]}
* aws_route53_record.cert_validation[3]: At column 94, line 1: invalid index operation into non-indexable type: TypeString in:

${aws_acm_certificate.cert.domain_validation_options.*.resource_record_name[count.index]}
* aws_route53_record.cert_validation[0]: At column 95, line 1: invalid index operation into non-indexable type: TypeString in:

${aws_acm_certificate.cert.domain_validation_options.*.resource_record_value[count.index]}
* aws_route53_record.cert_validation[1]: At column 94, line 1: invalid index operation into non-indexable type: TypeString in:

${aws_acm_certificate.cert.domain_validation_options.*.resource_record_name[count.index]}

推荐答案

经过多次反复试验，解决方案是这样的:

After a bunch more trial and error, the solution was this:

resource "aws_route53_record" "cert_validation" {
    count = 5
    name = "${lookup(aws_acm_certificate.cert.domain_validation_options[count.index], "resource_record_name")}"
    type = "CNAME"
    zone_id = "myzoneid"
    records = ["${lookup(aws_acm_certificate.cert.domain_validation_options[count.index], "resource_record_value")}"]
    ttl     = 60
}

这篇关于字符串的 Terraform 插值语法的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！