Add support for Hazelcast configuration file

--
Change-Id: I3255a14a60b7ae7749c49d5a885d92f4f19ec84f
Reviewed-on: https://bazel-review.git.corp.google.com/#/c/3980/
MOS_MIGRATED_REVID=127537367
diff --git a/src/main/java/com/google/devtools/build/lib/remote/RemoteOptions.java b/src/main/java/com/google/devtools/build/lib/remote/RemoteOptions.java
index 4116a93..da8c3b9 100644
--- a/src/main/java/com/google/devtools/build/lib/remote/RemoteOptions.java
+++ b/src/main/java/com/google/devtools/build/lib/remote/RemoteOptions.java
@@ -30,6 +30,14 @@
   public String hazelcastNode;
 
   @Option(
+    name = "hazelcast_client_config",
+    defaultValue = "null",
+    category = "remote",
+    help = "A file path to a hazelcast client config XML file. For client mode only."
+  )
+  public String hazelcastClientConfig;
+
+  @Option(
     name = "hazelcast_standalone_listen_port",
     defaultValue = "0",
     category = "build_worker",