00mjk / client-jvm

Service Bindings for Kubernetes Java Client

client-jvm

client-jvm is a library to access Service Binding Specification for Kubernetes conformant Service Binding Workload Projections.

Example

import com.nebhale.bindings.Binding;
import com.nebhale.bindings.Bindings;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;

public class Application {

    public static void main(String[] args) {
        Binding[] bindings = Bindings.fromServiceBindingRoot();
        bindings = Bindings.filter(bindings, "postgresql");
        if (bindings.length != 1) {
            System.err.printf("Incorrect number of PostgreSQL drivers: %d\n", bindings.length);
            System.exit(1);
        }

        String url = bindings[0].get("url");
        if (url == null) {
            System.err.println("No URL in binding");
            System.exit(1);
        }

        Connection conn;
        try {
            conn = DriverManager.getConnection(url);
        } catch (SQLException e) {
            System.err.printf("Unable to connect to database: %s", e);
            System.exit(1);
        }

        // ...
    }

}

License

Apache License v2.0: see LICENSE for details.