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* this work for additional information regarding copyright
* ownership. Elasticsearch 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.
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package org.elasticsearch.discovery.ec2;
import com.amazonaws.util.IOUtils;
import com.sun.net.httpserver.Headers;
import com.sun.net.httpserver.HttpServer;
import org.apache.http.NameValuePair;
import org.apache.http.client.utils.URLEncodedUtils;
import org.elasticsearch.common.SuppressForbidden;
import org.elasticsearch.common.io.FileSystemUtils;
import org.elasticsearch.common.logging.Loggers;
import org.elasticsearch.common.settings.MockSecureSettings;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.discovery.DiscoveryModule;
import org.elasticsearch.mocksocket.MockHttpServer;
import org.elasticsearch.plugins.Plugin;
import org.elasticsearch.test.ESIntegTestCase;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import javax.xml.XMLConstants;
import javax.xml.stream.XMLOutputFactory;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamWriter;
import java.io.IOException;
import java.io.OutputStream;
import java.io.StringWriter;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import java.util.UUID;
import java.util.concurrent.ExecutionException;
import static org.elasticsearch.test.hamcrest.ElasticsearchAssertions.assertNoTimeout;
import static org.hamcrest.Matchers.equalTo;
@ESIntegTestCase.ClusterScope(supportsDedicatedMasters = false, numDataNodes = 2, numClientNodes = 0)
@SuppressForbidden(reason = "use http server")
// TODO this should be a IT but currently all ITs in this project run against a real cluster
public class Ec2DiscoveryClusterFormationTests extends ESIntegTestCase {
private static HttpServer httpServer;
private static Path logDir;
@Override
protected Collection<Class<? extends Plugin>> nodePlugins() {
return Arrays.asList(Ec2DiscoveryPlugin.class);
}
@Override
protected Settings nodeSettings(int nodeOrdinal) {
Path resolve = logDir.resolve(Integer.toString(nodeOrdinal));
try {
Files.createDirectory(resolve);
} catch (IOException e) {
throw new RuntimeException(e);
}
MockSecureSettings secureSettings = new MockSecureSettings();
secureSettings.setString(AwsEc2Service.ACCESS_KEY_SETTING.getKey(), "some_access");
secureSettings.setString(AwsEc2Service.SECRET_KEY_SETTING.getKey(), "some_secret");
return Settings.builder().put(super.nodeSettings(nodeOrdinal))
.put(DiscoveryModule.DISCOVERY_HOSTS_PROVIDER_SETTING.getKey(), "ec2")
.put("path.logs", resolve)
.put("transport.tcp.port", 0)
.put("node.portsfile", "true")
.put(AwsEc2Service.ENDPOINT_SETTING.getKey(), "http://" + httpServer.getAddress().getHostName() + ":" +
httpServer.getAddress().getPort())
.setSecureSettings(secureSettings)
.build();
}
/**
* Creates mock EC2 endpoint providing the list of started nodes to the DescribeInstances API call
*/
@BeforeClass
public static void startHttpd() throws Exception {
logDir = createTempDir();
httpServer = MockHttpServer.createHttp(new InetSocketAddress(InetAddress.getLoopbackAddress().getHostAddress(), 0), 0);
httpServer.createContext("/", (s) -> {
Headers headers = s.getResponseHeaders();
headers.add("Content-Type", "text/xml; charset=UTF-8");
String action = null;
for (NameValuePair parse : URLEncodedUtils.parse(IOUtils.toString(s.getRequestBody()), StandardCharsets.UTF_8)) {
if ("Action".equals(parse.getName())) {
action = parse.getValue();
break;
}
}
assertThat(action, equalTo("DescribeInstances"));
XMLOutputFactory xmlOutputFactory = XMLOutputFactory.newFactory();
xmlOutputFactory.setProperty(XMLOutputFactory.IS_REPAIRING_NAMESPACES, true);
StringWriter out = new StringWriter();
XMLStreamWriter sw;
try {
sw = xmlOutputFactory.createXMLStreamWriter(out);
sw.writeStartDocument();
String namespace = "http://ec2.amazonaws.com/doc/2013-02-01/";
sw.setDefaultNamespace(namespace);
sw.writeStartElement(XMLConstants.DEFAULT_NS_PREFIX, "DescribeInstancesResponse", namespace);
{
sw.writeStartElement("requestId");
sw.writeCharacters(UUID.randomUUID().toString());
sw.writeEndElement();
sw.writeStartElement("reservationSet");
{
Path[] files = FileSystemUtils.files(logDir);
for (int i = 0; i < files.length; i++) {
Path resolve = files[i].resolve("transport.ports");
if (Files.exists(resolve)) {
List<String> addresses = Files.readAllLines(resolve);
Collections.shuffle(addresses, random());
sw.writeStartElement("item");
{
sw.writeStartElement("reservationId");
sw.writeCharacters(UUID.randomUUID().toString());
sw.writeEndElement();
sw.writeStartElement("instancesSet");
{
sw.writeStartElement("item");
{
sw.writeStartElement("instanceId");
sw.writeCharacters(UUID.randomUUID().toString());
sw.writeEndElement();
sw.writeStartElement("imageId");
sw.writeCharacters(UUID.randomUUID().toString());
sw.writeEndElement();
sw.writeStartElement("instanceState");
{
sw.writeStartElement("code");
sw.writeCharacters("16");
sw.writeEndElement();
sw.writeStartElement("name");
sw.writeCharacters("running");
sw.writeEndElement();
}
sw.writeEndElement();
sw.writeStartElement("privateDnsName");
sw.writeCharacters(addresses.get(0));
sw.writeEndElement();
sw.writeStartElement("dnsName");
sw.writeCharacters(addresses.get(0));
sw.writeEndElement();
sw.writeStartElement("instanceType");
sw.writeCharacters("m1.medium");
sw.writeEndElement();
sw.writeStartElement("placement");
{
sw.writeStartElement("availabilityZone");
sw.writeCharacters("use-east-1e");
sw.writeEndElement();
sw.writeEmptyElement("groupName");
sw.writeStartElement("tenancy");
sw.writeCharacters("default");
sw.writeEndElement();
}
sw.writeEndElement();
sw.writeStartElement("privateIpAddress");
sw.writeCharacters(addresses.get(0));
sw.writeEndElement();
sw.writeStartElement("ipAddress");
sw.writeCharacters(addresses.get(0));
sw.writeEndElement();
}
sw.writeEndElement();
}
sw.writeEndElement();
}
sw.writeEndElement();
}
}
}
sw.writeEndElement();
}
sw.writeEndElement();
sw.writeEndDocument();
sw.flush();
final byte[] responseAsBytes = out.toString().getBytes(StandardCharsets.UTF_8);
s.sendResponseHeaders(200, responseAsBytes.length);
OutputStream responseBody = s.getResponseBody();
responseBody.write(responseAsBytes);
responseBody.close();
} catch (XMLStreamException e) {
Loggers.getLogger(Ec2DiscoveryClusterFormationTests.class).error("Failed serializing XML", e);
throw new RuntimeException(e);
}
});
httpServer.start();
}
@AfterClass
public static void stopHttpd() throws IOException {
for (int i = 0; i < internalCluster().size(); i++) {
// shut them all down otherwise we get spammed with connection refused exceptions
internalCluster().stopRandomDataNode();
}
httpServer.stop(0);
httpServer = null;
logDir = null;
}
public void testJoin() throws ExecutionException, InterruptedException {
// only wait for the cluster to form
assertNoTimeout(client().admin().cluster().prepareHealth().setWaitForNodes(Integer.toString(2)).get());
// add one more node and wait for it to join
internalCluster().startDataOnlyNode();
assertNoTimeout(client().admin().cluster().prepareHealth().setWaitForNodes(Integer.toString(3)).get());
}
}