mcast addr and port as JAVA_OPTS

templates/cache-ispn.xml.j2

@@ -21,23 +21,6 @@
         xsi:schemaLocation="urn:infinispan:config:11.0 http://www.infinispan.org/schemas/infinispan-config-11.0.xsd"
         xmlns="urn:infinispan:config:11.0">
 
-    <jgroups>
-        <UDP
-            mcast_port="{{ keycloak_jgroups_multicast_port }}"
-            mcast_addr="{{ keycloak_jgroups_multicast_address }}"
-            ucast_recv_buf_size="5M"
-            ucast_send_buf_size="640K"
-            mcast_recv_buf_size="5M"
-            mcast_send_buf_size="640K"
-            max_bundle_size="64K"
-            ip_ttl="${jgroups.udp.ip_ttl:2}"
-            enable_diagnostics="true"
-
-            thread_pool.min_threads="2"
-            thread_pool.max_threads="8"
-            thread_pool.keep_alive_time="5000"/>
-    </jgroups>
-
     <cache-container name="{{ keycloak_cache_container_name }}">
         <transport lock-timeout="60000"/>
         <local-cache name="realms">

templates/keycloak.service.j2

@@ -16,6 +16,7 @@ Before=apache2.service
 [Service]
 Environment=JAVA={{ keycloak_openjdk_bin }}
 Environment=JAVA_HOME=/usr/lib/jvm/java-{{ keycloak_openjdk_runtime_version}}-openjdk-amd64
+Environment=JAVA_OPTS_APPEND="-Djgroups.mcast_addr={{ keycloak_jgroups_multicast_address}} -Djgroups.mcast_port={{ keycloak_jgroups_multicast_port }}"
 User={{ keycloak_user }}
 Group={{ keycloak_user }}
 SuccessExitStatus=0 143