[Fix-310][gateway]Configure hadoop_conf for Flink

dlink-gateway/src/main/java/com/dlink/gateway/yarn/YarnGateway.java

@@ -54,6 +54,8 @@ import com.dlink.utils.LogUtil;
  **/
 public abstract class YarnGateway extends AbstractGateway {
 
+    public static final String HADOOP_CONFIG = "fs.hdfs.hadoopconf";
+
     protected YarnConfiguration yarnConfiguration;
     protected YarnClient yarnClient;
 
@@ -83,6 +85,10 @@ public abstract class YarnGateway extends AbstractGateway {
             configuration.set(YarnConfigOptions.APPLICATION_NAME, config.getFlinkConfig().getJobName());
         }
 
+        if (Asserts.isNotNullString(config.getClusterConfig().getYarnConfigPath())) {
+            configuration.setString(HADOOP_CONFIG, config.getClusterConfig().getYarnConfigPath());
+        }
+
         if (configuration.containsKey(SecurityOptions.KERBEROS_LOGIN_KEYTAB.key())) {
             try {
                 SecurityUtils.install(new SecurityConfiguration(configuration));