如何在terraform中运行同一文件中的多个模块？

Question

我使用https://github.com/cloudposse/terraform-aws-acm-request-certificate生成证书，使用terraform和aws。

如何在terraform中运行同一文件中的多个域？(非子域)

我尝试了一下，但出现了错误Error: Duplicate module call

module "acm_request_certificate" {
  source                            = "git::https://github.com/cloudposse/terraform-aws-acm-request-certificate.git?ref=master"
  domain_name                       = "example.com"
  process_domain_validation_options = true
  ttl                               = "300"
}

module "acm_request_certificate" {
  source                            = "git::https://github.com/cloudposse/terraform-aws-acm-request-certificate.git?ref=master"
  domain_name                       = "otherexample.com"
  process_domain_validation_options = true
  ttl                               = "300"
}

我寻找的解决方案如下：

const domains = ["example.com", "otherexample.com"]

foreach(domain of domains) {
 module "acm_request_certificate" {
  source                            = "git::https://github.com/cloudposse/terraform-aws-acm-request-certificate.git?ref=master"
  domain_name                       = domain
  process_domain_validation_options = true
  ttl                               = "300"
 }
}

Answer 1

首先，您对两个模块使用相同的名称。它们应该是不同的，例如：

module "acm_request_certificate_example" {
  source                            = "git::https://github.com/cloudposse/terraform-aws-acm-request-certificate.git?ref=master"
  domain_name                       = "otherexample.com"
  process_domain_validation_options = true
  ttl                               = "300"
}

module "acm_request_certificate_other_example" {
  source                            = "git::https://github.com/cloudposse/terraform-aws-acm-request-certificate.git?ref=master"
  domain_name                       = "otherexample.com"
  process_domain_validation_options = true
  ttl                               = "300"
}

此外，在terraform 0.13中，您可以使用foreach作为模块。

# my_buckets.tf
module "bucket" {
  for_each = toset(["assets", "media"])
  source   = "./publish_bucket"
  name     = "${each.key}_bucket"
}

请参阅release notes中的详细信息。