Support use of NLB for Aurora Postgres

[vtejapavanreddy]

Hi All,

Currently IAM token is being generated based on the host provided. But when NLB is used we have to specify NLB to connect to DB.
Please enhance such that we can provide both NLB & hostname so that token is generated using host name but connection should be made using NLB.

[crystall-bitquill]

Hi @vtejapavanreddy, you can specify which host to use to generate the IAM token with the iamHost property.

Here is a simple example:

final Properties properties = new Properties();
properties.setProperty("user", "iam_user");
properties.setProperty("wrapperPlugins", "iam");
properties.setProperty("iamHost", "hostname");
properties.setProperty("iamRegion", "region");

String connString = "jdbc:aws-wrapper:postgresql://nlb-url/db";

try (Connection conn = DriverManager.getConnection(connString, properties)) {
    /// ...
}