configure test to retry for CI job

Signed-off-by: rs-eliatra <rafal.stobiecki@eliatra.com>

.github/workflows/ci.yml

@@ -10,7 +10,7 @@ on:
       - opendistro-*
 
 env:
-  MAVEN_OPTS: -Dhttp.keepAlive=false -Dmaven.wagon.http.pool=false -Dmaven.wagon.http.retryHandler.class=standard -Dmaven.wagon.http.retryHandler.count=3
+  GRADLE_OPTS: -Dhttp.keepAlive=false -DCI=true
 
 jobs:
   build:

build.gradle

@@ -41,6 +41,7 @@ plugins {
 
     id "nebula.ospackage" version "9.0.0"
     id "com.google.osdetector" version "1.7.0"
+    id "org.gradle.test-retry" version "1.3.1"
 }
 import org.gradle.crypto.checksum.Checksum
 
@@ -211,13 +212,17 @@ testsJar {
     libsDirName = '.'
 }
 
+boolean isCI = System.getenv().containsKey("CI")
+
 test {
     maxParallelForks = 3
     jvmArgs "-Xmx3072m"
     retry {
-        failOnPassedAfterRetry = false
-        maxFailures = 30
-        maxRetries = 3
+        if (isCI) {
+            failOnPassedAfterRetry = false
+            maxFailures = 30
+            maxRetries = 3
+        }
     }
 }