Updates integTest gradle scripts to run via remote cluster independen…

…tly (#160)

Signed-off-by: sruti1312 <srutiparthiban@gmail.com>

DEVELOPER_GUIDE.md

@@ -35,6 +35,7 @@ To build from the command line, use `./gradlew`.
 `./gradlew paBwcCluster#rollingUpgradeClusterTask -Dtests.security.manager=false` launches a cluster with three nodes of bwc version of OpenSearch with performance-analyzer and tests backwards compatibility by performing rolling upgrade of each node with the current version of OpenSearch with performance-analyzer.
 `./gradlew paBwcCluster#fullRestartClusterTask -Dtests.security.manager=false` launches a cluster with three nodes of bwc version of OpenSearch with performance-analyzer and tests backwards compatibility by performing a full restart on the cluster upgrading all the nodes with the current version of OpenSearch with performance-analyzer.
 `./gradlew bwcTestSuite -Dtests.security.manager=false` runs all the above bwc tests combined.
+`./gradlew integTestRemote -Dtests.enableIT -Dtests.useDockerCluster -Dtests.rest.cluster=localhost:9200 -Dtests.cluster=localhost:9200 -Dtests.clustername="docker-cluster" -Dhttps=true -Duser=admin -Dpassword=admin` launches integration tests against a local cluster and run tests with security
 
 ### Using IntelliJ IDEA
 

build.gradle

@@ -482,6 +482,31 @@ task integTest(type: RestIntegTestTask) {
     classpath = sourceSets.test.runtimeClasspath
 }
 
+def opensearch_tmp_dir = rootProject.file('build/private/opensearch_tmp').absoluteFile
+opensearch_tmp_dir.mkdirs()
+
+task integTestRemote(type: RestIntegTestTask) {
+    onlyIf = {
+        propEnabled("tests.enableIT")
+    }
+    if (System.getProperty("tests.rest.bwcsuite") == null) {
+        filter {
+            excludeTestsMatching "org.opensearch.performanceanalyzer.bwc.*IT"
+        }
+    }
+    if (propEnabled("tests.useDockerCluster")) {
+        dependsOn(setupOpenSearchCluster)
+    }
+    testClassesDirs = sourceSets.test.output.classesDirs
+    classpath = sourceSets.test.runtimeClasspath
+    systemProperty 'tests.security.manager', 'false'
+    systemProperty 'java.io.tmpdir', opensearch_tmp_dir.absolutePath
+
+    systemProperty "https", System.getProperty("https")
+    systemProperty "user", System.getProperty("user")
+    systemProperty "password", System.getProperty("password")
+}
+
 String bwcVersion = "1.13.0.0"
 String baseName = "paBwcCluster"
 String bwcFilePath = "src/test/resources/org/opensearch/performanceanalyzer/bwc/"