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Aurora Serverless IaC Example Using CDK & TypeScript
// Run `mkdir aurora && cd aurora && cdk init sample-app --language=typescript`
// and replace the `lib/aurora-stack.ts` with this file. May need to remove non-needed
// packages from package.json and add others like "@aws-cdk/aws-rds" and
// "@aws-cdk/aws-secretsmanager"
//
// Running assumes you pass in the following environment variables or hard code values.
//
// * ASCLUSTER_MASTER_USER
// * ASCLUSTER_MASTER_PASS
// * SUBNET_GROUP_NAME
//
// For an example that also creates a VPC, Subnet Group, & User: https://git.io/JexsN
//
import { CfnOutput, Construct, Stack, StackProps } from "@aws-cdk/core";
import { CfnDBCluster, CfnDBClusterParameterGroup } from "@aws-cdk/aws-rds";
import { CfnSecret } from "@aws-cdk/aws-secretsmanager";
const MASTER_USER = process.env.ASCLUSTER_MASTER_USER;
const MASTER_PASS = process.env.ASCLUSTER_MASTER_PASS;
const SUBNET_GROUP_NAME = process.env.SUBNET_GROUP_NAME;
export class AuroraStack extends Stack {
constructor(scope: Construct, id: string, props?: StackProps) {
super(scope, id, props);
// RDS PARAMETER GROUP
const dbParamGroup = new CfnDBClusterParameterGroup(
this,
"ParameterGroup",
{
family: "aurora5.6",
description: "My Aurora Serverless Database Parameters.",
parameters: {
innodb_large_prefix: "1",
innodb_file_per_table: "1",
innodb_file_format: "Barracuda",
character_set_client: "utf8mb4",
character_set_connection: "utf8mb4",
character_set_database: "utf8mb4",
character_set_results: "utf8mb4",
character_set_server: "utf8mb4",
collation_server: "utf8mb4_unicode_ci",
collation_connection: "utf8mb4_unicode_ci"
}
}
);
// AURORA SERVERLESS CLUSTERS
const aurora = new CfnDBCluster(this, "AuroraServerless", {
databaseName: "mydatabase",
dbClusterIdentifier: "mydatabase",
engine: "aurora",
engineMode: "serverless",
masterUsername: MASTER_USER,
masterUserPassword: MASTER_PASS,
enableHttpEndpoint: true,
port: 3306,
dbSubnetGroupName: SUBNET_GROUP_NAME,
dbClusterParameterGroupName: dbParamGroup.ref,
scalingConfiguration: {
autoPause: true,
minCapacity: 1,
maxCapacity: 4,
secondsUntilAutoPause: 10800 // 3 hours.
}
});
aurora.addDependsOn(dbParamGroup);
new CfnOutput(this, "MyAuroraResourceArn", {
value: `arn:aws:rds:${this.region}:${this.account}:cluster:mydatabase`
});
// SECRETS
const secret = new CfnSecret(this, "Secret", {
secretString: JSON.stringify({
username: MASTER_USER,
password: MASTER_PASS,
engine: "mysql",
host: aurora.attrEndpointAddress,
port: aurora.attrEndpointPort,
dbClusterIdentifier: "mydatabase"
}),
description: "My Aurora Master Credentials."
});
secret.addDependsOn(aurora);
new CfnOutput(this, "MySecretArn", {
value: secret.ref
});
}
}
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