Move multi-project module to test tree (#1957)

The multi-project module is actually a testing module, but was included
in the modules/ tree for convenience. This commit moves it to
`test/external-modules/` which is where it belongs.

Author: tvernum

modules/multi-project/src/internalClusterTest/java/org/elasticsearch/reservedstate/service/MultiProjectComponentTemplatesFileSettingsIT.java

@@ -1,25 +1,17 @@
 import org.elasticsearch.gradle.testclusters.StandaloneRestIntegTestTask
 
+apply plugin: 'elasticsearch.internal-es-plugin'
 apply plugin: 'elasticsearch.test-with-dependencies'
-apply plugin: 'elasticsearch.internal-cluster-test'
-apply plugin: 'elasticsearch.internal-yaml-rest-test'
 apply plugin: 'elasticsearch.internal-java-rest-test'
-apply plugin: 'elasticsearch.yaml-rest-compat-test'
 
 esplugin {
-  description = 'The Multi-Project module adds functionality for working with multiple projects in ES (only for internal use).'
+  description = 'The Multi-Project module adds functionality for working with multiple projects in ES (for testing purposes).'
   classname = 'org.elasticsearch.multiproject.TestOnlyMultiProjectPlugin'
 }
 
-restResources {
-  restApi {
-    include '*'
-  }
-}
-
 dependencies {
   testImplementation project(path: ':test:test-clusters')
-  clusterModules project(':modules:multi-project')
+  clusterModules project(':test:external-modules:test-multi-project')
 }
 
 tasks.withType(StandaloneRestIntegTestTask).configureEach {

modules/multi-project/build.gradle renamed to test/external-modules/multi-project/build.gradle

@@ -35,7 +35,7 @@ public class ClusterStatsMultiProjectIT extends MultiProjectRestTestCase {
     public static ElasticsearchCluster cluster = ElasticsearchCluster.local()
         .nodes(1)
         .distribution(DistributionType.INTEG_TEST)
-        .module("multi-project")
+        .module("test-multi-project")
         .setting("multi_project.enabled", "true")
         .setting("xpack.security.enabled", "true")
         .user("admin", PASSWORD)

modules/multi-project/src/javaRestTest/java/org/elasticsearch/action/admin/cluster/stats/ClusterStatsMultiProjectIT.java renamed to test/external-modules/multi-project/src/javaRestTest/java/org/elasticsearch/action/admin/cluster/stats/ClusterStatsMultiProjectIT.java

@@ -47,7 +47,7 @@ private static ElasticsearchCluster createCluster() {
         LocalClusterSpecBuilder<ElasticsearchCluster> clusterBuilder = ElasticsearchCluster.local()
             .nodes(NODE_NUM)
             .distribution(DistributionType.INTEG_TEST) // TODO multi-project: make this test suite work under the default distrib
-            .module("multi-project")
+            .module("test-multi-project")
             .setting("multi_project.enabled", "true")
             .setting("xpack.security.enabled", "false") // TODO multi-project: make this test suite work with Security enabled
             .setting("xpack.ml.enabled", "false"); // TODO multi-project: make this test suite work with ML enabled

modules/multi-project/src/javaRestTest/java/org/elasticsearch/action/admin/indices/IndexMultiProjectCRUDIT.java renamed to test/external-modules/multi-project/src/javaRestTest/java/org/elasticsearch/action/admin/indices/IndexMultiProjectCRUDIT.java

@@ -43,7 +43,7 @@ private static ElasticsearchCluster createCluster() {
         LocalClusterSpecBuilder<ElasticsearchCluster> clusterBuilder = ElasticsearchCluster.local()
             .nodes(NODE_NUM)
             .distribution(DistributionType.INTEG_TEST) // TODO multi-project: make this test suite work under the default distrib
-            .module("multi-project")
+            .module("test-multi-project")
             .setting("multi_project.enabled", "true")
             .setting("xpack.security.enabled", "false") // TODO multi-project: make this test suite work with Security enabled
             .setting("xpack.ml.enabled", "false"); // TODO multi-project: make this test suite work with ML enabled

modules/multi-project/src/javaRestTest/java/org/elasticsearch/action/index/IndexDocumentMultiProjectIT.java renamed to test/external-modules/multi-project/src/javaRestTest/java/org/elasticsearch/action/index/IndexDocumentMultiProjectIT.java

@@ -41,7 +41,7 @@ public class SecurityRolesMultiProjectIT extends MultiProjectRestTestCase {
     public static ElasticsearchCluster cluster = ElasticsearchCluster.local()
         .nodes(1)
         .distribution(DistributionType.DEFAULT)
-        .module("multi-project")
+        .module("test-multi-project")
         .setting("multi_project.enabled", "true")
         .setting("xpack.security.enabled", "true")
         .user("admin", PASSWORD)