Set the mcast addr and port.

defaults/main.yml

@@ -81,3 +81,6 @@ keycloak_cluster: false
 keycloak_cache_type: ispn
 keycloak_cache_stack: tcp
 keycloak_cache_container_name: keycloak
+keycloak_jgroups_multicast_port: '46655'
+keycloak_jgroups_multicast_address: '228.6.7.8'
+keycloak_jgroups_multicast_net: '224.0.0.1'

meta/main.yml

@@ -1,13 +1,13 @@
 galaxy_info:
   author: Andrea Dell'Amico
-  description: Systems Architect
+  description: Role that installs Keycloak, <https://www.keycloak.org>
   company: ISTI-CNR
-
   issue_tracker_url: https://redmine-s2i2s.isti.cnr.it/projects/provisioning
+  role_name: keycloak
 
   license: EUPL 1.2+
 
-  min_ansible_version: 2.8
+  min_ansible_version: "2.9"
 
   # To view available platforms and versions (or releases), visit:
   # https://galaxy.ansible.com/api/v1/platforms/
@@ -20,9 +20,9 @@ galaxy_info:
         - jammy
     - name: EL
       versions:
-        - 7
-        - 8
-        - 9
+        - "7"
+        - "8"
+        - "9"
 
   galaxy_tags:
     - users

templates/cache-ispn.xml.j2

@@ -21,6 +21,23 @@
         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">