Provide PostgreSQL/Keycloak mapped port information.

[whitingjr]

For subsequent container configuration.

Fixes Issue

fixes #1940

Changes proposed

• My code follows the code style of this project.
• My change requires changes to the documentation.
• I have updated the documentation accordingly.
• All new and existing tests passed.

[johnaohara]

What is the need to push all the configuration properties into system properties?

it is possible to obtain a programmatic reference to the infra container properties with something like;

import io.hyperfoil.tools.horreum.infra.common.Const;
import io.hyperfoil.tools.horreum.infra.common.HorreumResources;
import org.junit.Test;

import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;

public class TestInfraStart {

    @Test
    public void test_start_infra() {

        final Map<String, String> containerArgs = new HashMap<>();
        containerArgs.put(Const.HORREUM_DEV_KEYCLOAK_ENABLED, Boolean.toString(true));
        containerArgs.put(Const.HORREUM_DEV_KEYCLOAK_IMAGE, "quay.io/keycloak/keycloak:23.0.3");
        containerArgs.put(Const.HORREUM_DEV_KEYCLOAK_NETWORK_ALIAS, Const.DEFAULT_KEYCLOAK_NETWORK_ALIAS);
        containerArgs.put(Const.HORREUM_DEV_POSTGRES_ENABLED, Boolean.toString(true));
        containerArgs.put(Const.HORREUM_DEV_POSTGRES_IMAGE, "postgres:16");
        containerArgs.put(Const.HORREUM_DEV_POSTGRES_NETWORK_ALIAS, Const.DEFAULT_POSTGRES_NETWORK_ALIAS);
        containerArgs.put(Const.HORREUM_DEV_KEYCLOAK_DB_USERNAME, Const.DEFAULT_KC_DB_USERNAME);
        containerArgs.put(Const.HORREUM_DEV_KEYCLOAK_DB_PASSWORD, Const.DEFAULT_KC_DB_PASSWORD);
        containerArgs.put(Const.HORREUM_DEV_KEYCLOAK_ADMIN_USERNAME, Const.DEFAULT_KC_ADMIN_USERNAME);
        containerArgs.put(Const.HORREUM_DEV_KEYCLOAK_ADMIN_PASSWORD, Const.DEFAULT_KC_ADMIN_PASSWORD);

        Map<String, String> container_props = HorreumResources.startContainers(Collections.unmodifiableMap(containerArgs));

        System.out.println(Arrays.toString(container_props.entrySet().toArray()) );

        HorreumResources.stopContainers();

    }
}

You can query container_props to get any necessary ephemeral container properties to bootstrap Horreum

[whitingjr]

I'll redo this using the map of properties.

[whitingjr]

Actually this information is already contained in keycloak.host and quarkus.datasource.jdbc.url so this pr can be scrapped.