typescript - 资源处理程序返回消息 : "Model validation failed (#/VpcSubnetIds: expected minimum item count: 2, found: 1)"

Question

我正在执行以下操作:

const vpc = ec2.Vpc.fromLookup(this, "vpcDefault", { vpcId: "someid" });
const instanceType: ec2.InstanceType = ec2.InstanceType.of(ec2.InstanceClass.T3, ec2.InstanceSize.LARGE);
const subnetGroup = rds.SubnetGroup.fromSubnetGroupName(this, "subnetGroup", "test subnet group")
const secretKey = kms.Key.fromKeyArn(this, "kmsKey", "someresourcearn")

const secretSecret = new secrets.Secret(this, "secretSecret", {
  encryptionKey: secretKey,
  secretName: "onTheSpotGeneratedKeyFromKMS",
});

// create new DB Instance
const dbInstance = new rds.DatabaseInstance(this, "testDbInstance", {
  vpc,
  subnetGroup,
  instanceType,
  allocatedStorage: 10,
  storageEncrypted: true,
  databaseName: "test_cdk_db",
  instanceIdentifier: "test-db",
  engine: rds.DatabaseInstanceEngine.postgres({ version: rds.PostgresEngineVersion.VER_13 }),
});

const dbProxy = new rds.DatabaseProxy(this, "dbProxy", {
  proxyTarget: rds.ProxyTarget.fromInstance(dbInstance),
  secrets: [secretSecret],
  vpc,
});

我看到以下错误:

创建失败 | AWS::RDS::DBProxy | AWS::RDS::DBProxy数据库代理

Resource handler returned message: "Model validation failed (#/VpcSubnetIds: expected minimum item count: 2, found: 1)" (RequestToken: XXX, HandlerErrorCode: InvalidRequest)

这个问题似乎是在我创建 dbProxy 时发生的。有什么想法吗？

编辑:这些是我的子网。

Answer 1

该错误表示您的子网组不正确:

subnetGroup = rds.SubnetGroup.fromSubnetGroupName(this, "subnetGroup", "test subnet group")

未显示您具体如何创建该组，但该组似乎只有一个子网。它必须有two subnets在不同的可用区:

Your VPC must have at least two subnets. These subnets must be in two different Availability Zones in the AWS Region where you want to deploy your DB instance.