无法创建RDS实例，即使子网位于不同的可用区域
无法创建RDS实例，即使子网位于不同的可用区域
提问于 2020-11-07 07:37:46
Terraform代码在这里：
resource "aws_rds_cluster" "tf-aws-rds-1" {
cluster_identifier = "aurora-cluster-1"
engine = "aurora-mysql"
engine_version = "5.7.mysql_aurora.2.03.2"
availability_zones = ["us-east-1a","us-east-1b","us-east-1c"]
database_name = "cupday"
master_username = "administrator"
master_password = var.password
backup_retention_period = 5
preferred_backup_window = "07:00-09:00"
storage_encrypted = true
kms_key_id = data.aws_kms_key.rds_key.arn
}但是，当我运行terraform应用程序时，我会得到以下错误消息：
aws_rds_cluster.tf-aws-rds-1: Creating...
Error: error creating RDS cluster: InvalidVPCNetworkStateFault: DB Subnet Group doesn't meet availability zone coverage requirement. Please add subnets to cover at least 2 availability zones. Current coverage: 0
status code: 400, request id: bc05fb5f-311c-4d15-821a-8b97fc27ab5b但是，我在多个AZ中有子网，截图如下：
你知道问题是什么吗?我该怎么解决呢？P.S:如下所创建的子网
resource "aws_subnet" "tf-aws-sn" {
count = var.subnet_count
vpc_id = aws_vpc.tf-aws-vn.id
cidr_block = data.template_file.public_cidrsubnet[count.index].rendered
availability_zone = slice(data.aws_availability_zones.available.names, 0, var.subnet_count)[count.index]
tags = local.common_tags
}可用性区域如下所示：
data "aws_availability_zones" "available" {}回答 1
Stack Overflow用户
回答已采纳
发布于 2020-11-07 07:52:22
我看不到您对组的代码引用，所以我猜使用的默认子网组不满足这一限制。您可以创建自己的aws_db_subnet_group
resource "aws_db_subnet_group" "db_subnets" {
name = "main"
subnet_ids = aws_subnet.tf-aws-sn[*].id
tags = {
Name = "My DB subnet group"
}
}然后使用它(在本例中不需要availability_zones )
resource "aws_rds_cluster" "tf-aws-rds-1" {
cluster_identifier = "aurora-cluster-1"
engine = "aurora-mysql"
engine_version = "5.7.mysql_aurora.2.03.2"
db_subnet_group_name = aws_db_subnet_group.db_subnets.name
database_name = "cupday"
master_username = "administrator"
master_password = var.password
backup_retention_period = 5
preferred_backup_window = "07:00-09:00"
storage_encrypted = true
kms_key_id = data.aws_kms_key.rds_key.arn
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/64725496
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