diff --git a/docker/swarm/stack/jenkins/master.yml b/docker/swarm/stack/jenkins/master.yml
index 54b0093..d851962 100644
--- a/docker/swarm/stack/jenkins/master.yml
+++ b/docker/swarm/stack/jenkins/master.yml
@@ -1,6 +1,8 @@
 parameters:
   _param:
     docker_image_jenkins: tcpcloud/jenkins:2.63
+    jenkins_master_extra_opts: ""
+    jenkins_master_executors_num: 4
   docker:
     client:
       stack:
@@ -8,8 +10,8 @@
           service:
             master:
               environment:
-                JAVA_OPTS: "-Djenkins.install.runSetupWizard=false -Dhudson.DNSMultiCast.disabled=true -Dhudson.udp=-1 -Dhudson.footerURL=https://www.mirantis.com"
-                JENKINS_NUM_EXECUTORS: 4
+                JAVA_OPTS: " -server -XX:+AlwaysPreTouch -Xloggc:$JENKINS_HOME/gc-%t.log -XX:NumberOfGCLogFiles=5 -XX:+UseGCLogFileRotation -XX:GCLogFileSize=20m -XX:+PrintGC -XX:+PrintGCDateStamps -XX:+PrintGCDetails -XX:+PrintHeapAtGC -XX:+PrintGCCause -XX:+PrintTenuringDistribution -XX:+PrintReferenceGC -XX:+PrintAdaptiveSizePolicy -XX:+UseG1GC -XX:+ExplicitGCInvokesConcurrent -XX:+ParallelRefProcEnabled -XX:+UseStringDeduplication -XX:+UnlockExperimentalVMOptions -XX:G1NewSizePercent=20 -XX:+UnlockDiagnosticVMOptions -XX:G1SummarizeRSetStatsPeriod=1-Djenkins.install.runSetupWizard=false -Dhudson.DNSMultiCast.disabled=true -Dhudson.udp=-1 -Dhudson.footerURL=https://www.mirantis.com ${_param:jenkins_master_extra_opts}"
+                JENKINS_NUM_EXECUTORS: ${_param:jenkins_master_executors_num}
               deploy:
                 restart_policy:
                   condition: any