bsingh4

    /**
     * The MySQL or PostgreSQL version to
     * use. Can be `MYSQL_5_6`, `MYSQL_5_7`, `POSTGRES_9_6` or `POSTGRES_11` (beta) for second-generation
     * instances, or `MYSQL_5_5` or `MYSQL_5_6` for first-generation instances.
     * See [Second Generation Capabilities](https://cloud.google.com/sql/docs/1st-2nd-gen-differences)
     * for more information.
     */
    readonly databaseVersion?: pulumi.Input<string>;

  const db = new gcp.sql.DatabaseInstance('app-db', {
    databaseVersion: 'POSTGRES_11',
    region: 'us-central1',
    settings: {
      tier: 'db-f1-micro',
      diskType: 'PD_HDD',
    },
  });

  const db = new rds.DatabaseInstance(this, 'AppDb', {
    engine: rds.DatabaseInstanceEngine.POSTGRES,
    engineVersion: '11.5',
    instanceClass: ec2.InstanceType.of(
      ec2.InstanceClass.STANDARD5,
      ec2.InstanceSize.XLARGE
    ),
    storageType: rds.StorageType.GP2
  })