Marvel: add configuration for integration tests

Original commit: elastic/x-pack-elasticsearch@6161a64d13

marvel/dev-tools/integration-tests.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0"?>
+<project name="commercial-integration-tests">
+
+  <import file="${elasticsearch.integ.antfile.default}"/>
+
+  <target name="start-external-cluster-with-plugin" depends="setup-workspace" unless="${shouldskip}">
+    <install-plugin name="elasticsearch-license" file="${integ.deps}/elasticsearch-license-plugin-${project.version}.zip" />
+    <install-plugin name="${project.artifactId}" file="${project.build.directory}/releases/${project.artifactId}-${project.version}.zip"/>
+    <startup-elasticsearch/>
+  </target>
+</project>

marvel/pom.xml

@@ -15,6 +15,10 @@
         <version>2.0.0-beta1-SNAPSHOT</version>
     </parent>
 
+    <properties>
+        <elasticsearch.integ.antfile>dev-tools/integration-tests.xml</elasticsearch.integ.antfile>
+    </properties>
+
     <dependencies>
 
         <dependency>
@@ -37,6 +41,37 @@
                 </includes>
             </resource>
         </resources>
+
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-assembly-plugin</artifactId>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-dependency-plugin</artifactId>
+                <executions>
+                    <execution>
+                        <id>integ-setup-dependencies</id>
+                        <phase>pre-integration-test</phase>
+                        <goals>
+                            <goal>copy</goal>
+                        </goals>
+                        <configuration>
+                            <artifactItems combine.children="append">
+                                <artifactItem>
+                                    <groupId>org.elasticsearch</groupId>
+                                    <artifactId>elasticsearch-license-plugin</artifactId>
+                                    <version>${project.version}</version>
+                                    <type>zip</type>
+                                    <overWrite>true</overWrite>
+                                </artifactItem>
+                            </artifactItems>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
     </build>
 
 </project>

marvel/src/main/assemblies/plugin.xml

@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <assembly>
     <id>plugin</id>
     <formats>