Get zone domain name dynamically

Before this commit, the zone's domain name had to be passed as a
configuration parameter to Dyna3. This is no longer the case, it
suffices to pass the zone id, and the domain name is resolved
dynamically from the zone id via Route53 API call.

src/dyna53/src/main/java/com/ongres/labs/dyna53/route53/Route53Manager.java

@@ -12,9 +12,12 @@
 import com.ongres.labs.dyna53.route53.exception.Route53Exception;
 import com.ongres.labs.dyna53.route53.exception.TimeoutException;
 import org.eclipse.microprofile.config.inject.ConfigProperty;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import software.amazon.awssdk.services.route53.Route53AsyncClient;
 import software.amazon.awssdk.services.route53.model.*;
 
+import javax.annotation.PostConstruct;
 import javax.enterprise.context.ApplicationScoped;
 import javax.inject.Inject;
 import java.util.Optional;
@@ -33,25 +36,47 @@ public class Route53Manager {
 
     private static final int MAX_VALUES_PER_RESOURCE_RECORD = 400;
 
+    private static final Logger LOGGER = LoggerFactory.getLogger(Route53Manager.class);
+
     @ConfigProperty(name = "hosted_zone")
     String hostedZone;
 
-    @ConfigProperty(name = "zone_domain_name")
     String zoneDomainName;
 
     @Inject
     Route53AsyncClient route53AsyncClient;
 
+    @PostConstruct
+    void getZoneDomainNameFromHostedZone() {
+        var getHostedZoneRequest = GetHostedZoneRequest.builder()
+                .id(hostedZone)
+                .build();
+
+        route53AsyncClient.getHostedZone(getHostedZoneRequest)
+                .orTimeout(ROUTE53_API_CALLS_TIMEOUT_SECONDS, TimeUnit.SECONDS)
+                .whenComplete(
+                        (response, throwable) -> {
+                            if(null == response) {
+                                throw new RuntimeException("Invalid hosted zone id " + hostedZone + " or error querying it");
+                            }
+
+                            zoneDomainName = response.hostedZone().name();
+                            LOGGER.info("Setting zone domain name to " + zoneDomainName);
+                        }
+                )
+                .join();
+    }
+
     private String recordNameDotEnded(String label) {
-        return label + "." + zoneDomainName + ".";
+        return label + "." + zoneDomainName;
     }
 
     private String labelFrom(String subLabel, String label) {
         return subLabel + "." + label;
     }
 
     private String route53FullLabel2Label(String value) {
-        return value.substring(0, value.length() - ("." + zoneDomainName).length() - 1);
+        return value.substring(0, value.length() - ("." + zoneDomainName).length());
     }
 
     private CompletableFuture<ChangeResourceRecordSetsResponse> actionAsyncResourceRecord(
@@ -243,7 +268,7 @@ public Stream<String> listSRVRecordsLabel(int priority, int weight, int port) {
     public Stream<String> listTXTRecordsWithLabel(String label, String namePrefixRegex) {
         return listAllRecords(RRType.TXT)
                 .filter(resourceRecordSet ->
-                        resourceRecordSet.name().endsWith("." + label + "." + zoneDomainName + ".")
+                        resourceRecordSet.name().endsWith("." + label + "." + zoneDomainName)
                         && resourceRecordSet.name().split("\\.")[0].matches(namePrefixRegex)
                 ).flatMap(resourceRecordSet -> resourceRecordSet.resourceRecords().stream())
                 .map(resourceRecord -> txtResourceValue2String(resourceRecord.value()))