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   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You under the Apache License, Version 2.0
   * (the "License"); you may not use this file except in compliance with
   * the License.  You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.apache.camel.quarkus.component.elasticsearch.rest.client.it;
  
  import java.io.File;
  import java.io.FileInputStream;
  import java.io.FileOutputStream;
  import java.io.OutputStreamWriter;
  import java.nio.charset.StandardCharsets;
  import java.nio.file.Files;
  import java.nio.file.Path;
  import java.nio.file.Paths;
  import java.security.KeyStore;
  import java.security.cert.Certificate;
  import java.util.Base64;
  import java.util.Map;
  
  import com.github.dockerjava.api.model.ExposedPort;
  import com.github.dockerjava.api.model.HostConfig;
  import com.github.dockerjava.api.model.Ports;
  import io.quarkus.test.common.QuarkusTestResourceLifecycleManager;
  import org.apache.camel.util.CollectionHelper;
  import org.eclipse.microprofile.config.ConfigProvider;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  import org.testcontainers.DockerClientFactory;
  import org.testcontainers.containers.GenericContainer;
  import org.testcontainers.containers.Network;
  import org.testcontainers.containers.output.Slf4jLogConsumer;
  import org.testcontainers.containers.wait.strategy.Wait;
  import org.testcontainers.images.builder.Transferable;
  
  public class ElasticsearchRestTestResource implements QuarkusTestResourceLifecycleManager {
  
      public static final String CERTS_BASEDIR = "target/certs";
      public static final String CERTIFICATE_NAME = "elasticsearch";
      public static final String KEYSTORE_PASSWORD = "s3cr3t";
      private static final Logger LOGGER = LoggerFactory.getLogger(ElasticsearchRestTestResource.class);
      private static final String ELASTICSEARCH_IMAGE = ConfigProvider.getConfig().getValue("elasticsearch.container.image",
              String.class);
      private static final String ELASTICSEARCH_USERNAME = "elastic";
      private static final String ELASTICSEARCH_PASSWORD = "changeme";
      private static final int ELASTICSEARCH_PORT = 9200;
  
      private GenericContainer<?> container;
  
      @Override
      public Map<String, String> start() {
          exportCertificateCAForClient();
  
          try {
              Network elasticSearchNetwork = Network.newNetwork();
  
              container = new GenericContainer<>(ELASTICSEARCH_IMAGE)
                      .withExposedPorts(ELASTICSEARCH_PORT)
                      .withLogConsumer(new Slf4jLogConsumer(LOGGER))
                      .withEnv("cluster.routing.allocation.disk.threshold_enabled", "false")
                      .withEnv("discovery.type", "single-node")
                      .withEnv("http.publish_host", DockerClientFactory.instance().dockerHostIpAddress())
                      .withEnv("xpack.security.enabled", "true")
                      .withEnv("xpack.security.transport.ssl.enabled", "true")
                      .withEnv("xpack.security.transport.ssl.verification_mode", "certificate")
                      .withEnv("xpack.security.transport.ssl.keystore.path", "certs/elasticsearch-keystore.p12")
                      .withEnv("xpack.security.transport.ssl.keystore.password", KEYSTORE_PASSWORD)
                      .withEnv("xpack.security.transport.ssl.truststore.path", "certs/elasticsearch-truststore.p12")
                      .withEnv("xpack.security.transport.ssl.truststore.password", KEYSTORE_PASSWORD)
                      .withEnv("action.destructive_requires_name", "false") // needed for deleting all indexes after each test (allowing _all wildcard)
                      .withEnv("ELASTIC_USERNAME", ELASTICSEARCH_USERNAME)
                      .withEnv("ELASTIC_PASSWORD", ELASTICSEARCH_PASSWORD)
                      .withEnv("ES_JAVA_OPTS", "-Xms512m -Xmx512m")
                      .withCopyToContainer(
                              Transferable.of(Files.readAllBytes(Paths.get("target/certs/elasticsearch-keystore.p12"))),
                              "/usr/share/elasticsearch/config/certs/elasticsearch-keystore.p12")
                      .withCopyToContainer(
                              Transferable.of(Files.readAllBytes(Paths.get("target/certs/elasticsearch-truststore.p12"))),
                              "/usr/share/elasticsearch/config/certs/elasticsearch-truststore.p12")
                      .withCreateContainerCmdModifier(createContainerCmd -> {
                          Ports portBindings = new Ports();
                          portBindings.bind(ExposedPort.tcp(ELASTICSEARCH_PORT), Ports.Binding.bindPort(ELASTICSEARCH_PORT));
                          HostConfig hostConfig = HostConfig.newHostConfig()
                                  .withPortBindings(portBindings)
                                  .withNetworkMode(elasticSearchNetwork.getId());
                          createContainerCmd.withHostConfig(hostConfig);
                      })
                      .waitingFor(Wait.forListeningPort());
  
              container.start();
              String hostAddresses = String.format("%s:%s", container.getHost(), container.getMappedPort(ELASTICSEARCH_PORT));
  
              return CollectionHelper.mapOf(
                      "camel.component.elasticsearch-rest-client.host-addresses-list", hostAddresses,
                      "camel.component.elasticsearch-rest-client.user", ELASTICSEARCH_USERNAME,
                      "camel.component.elasticsearch-rest-client.password", ELASTICSEARCH_PASSWORD,
                      "camel.component.elasticsearch-rest-client.certificatePath", "file:target/certs/ca.crt",
                      "camel.component.elasticsearch-rest-client.enableSniffer", "true");
  
          } catch (Exception e) {
              throw new RuntimeException(e);
          }
      }
  
      @Override
      public void stop() {
          try {
              if (container != null) {
                  container.stop();
              }
          } catch (Exception e) {
              // Ignored
          }
      }
  
      private void exportCertificateCAForClient() {
          Path path = Paths.get("target/certs/elasticsearch-keystore.p12");
          File outputFile = path.getParent().resolve("ca.crt").toFile();
          try {
              KeyStore keyStore = KeyStore.getInstance("pkcs12");
              try (FileInputStream fis = new FileInputStream(path.toAbsolutePath().toString())) {
                  keyStore.load(fis, KEYSTORE_PASSWORD.toCharArray());
              }
  
              Certificate cert = keyStore.getCertificate(CERTIFICATE_NAME);
              if (cert == null) {
                  throw new IllegalStateException("Unable to find a certificate in keystore named " + CERTIFICATE_NAME);
              }
  
              Base64.Encoder encoder = Base64.getEncoder();
              try (OutputStreamWriter writer = new OutputStreamWriter(new FileOutputStream(outputFile), StandardCharsets.UTF_8)) {
                  writer.write("-----BEGIN CERTIFICATE-----");
                  writer.write("\n");
                  writer.write(encoder.encodeToString(cert.getEncoded()));
                  writer.write("\n");
                  writer.write("-----END CERTIFICATE-----");
              }
          } catch (Exception e) {
              throw new RuntimeException(e);
          }
      }
  }
  