[#2362] Set cache manager TTL by default 10sec (#2378)

Signed-off-by: Avgustin Marinov <Avgustin.Marinov@bosch.com>

hawkbit-autoconfigure/src/main/java/org/eclipse/hawkbit/autoconfigure/cache/CacheProperties.java

@@ -25,7 +25,7 @@ public class CacheProperties {
     /**
      * TTL for cached entries in millis.
      */
-    private int ttl;
+    private int ttl = 10_000; // default TTL - 10 seconds
 
     /**
      * Initial delay in millis

hawkbit-monolith/hawkbit-update-server/src/main/resources/application.properties

@@ -37,6 +37,11 @@ server.servlet.encoding.force=true
 hawkbit.server.ddi.security.authentication.targettoken.enabled=false
 hawkbit.server.ddi.security.authentication.gatewaytoken.enabled=false
 
+# Cache configuration,
+# disable expiration since monolith is expected to be used as an all-in-one hawkBit instance,
+# i.e. no microservices and 1 replica, then evict should do work
+hawkbit.cache.global.ttl=0
+
 # Optional events
 hawkbit.server.repository.publish-target-poll-event=false