Fix sidecar server config loading (#26200)

* Fix sidecar server config loading

* Add changelog

Author: xd4rker

changelog/unreleased/pr-26200.toml

@@ -0,0 +1,4 @@
+type = "f"
+message = "Fix Sidecar config not being loaded from the Graylog server configuration file."
+
+pulls = ["26200"]

graylog2-server/src/main/java/org/graylog2/commands/Server.java

@@ -45,6 +45,7 @@
 import org.graylog.plugins.netflow.NetFlowPluginModule;
 import org.graylog.plugins.pipelineprocessor.PipelineConfig;
 import org.graylog.plugins.sidecar.SidecarModule;
+import org.graylog.plugins.sidecar.common.SidecarPluginConfiguration;
 import org.graylog.plugins.views.ViewsBindings;
 import org.graylog.plugins.views.ViewsConfig;
 import org.graylog.plugins.views.search.rest.scriptingapi.ScriptingApiModule;
@@ -158,6 +159,7 @@ public class Server extends ServerBootstrap implements DocumentedBeansService {
     private final DnsLookupAdapterConfiguration dnsLookupAdapterConfiguration = new DnsLookupAdapterConfiguration();
     private final EventDefinitionConfiguration eventDefinitionConfiguration = new EventDefinitionConfiguration();
     private final MetricsCacheConfiguration metricsCacheConfiguration = new MetricsCacheConfiguration();
+    private final SidecarPluginConfiguration sidecarPluginConfiguration = new SidecarPluginConfiguration();
 
     @Option(name = {"-l", "--local"}, description = "Run Graylog in local mode. Only interesting for Graylog developers.")
     private boolean local = false;
@@ -262,7 +264,8 @@ public List<Object> getDocumentedConfigurationBeans() {
                 contentStreamConfiguration,
                 dnsLookupAdapterConfiguration,
                 eventDefinitionConfiguration,
-                metricsCacheConfiguration);
+                metricsCacheConfiguration,
+                sidecarPluginConfiguration);
     }
 
     @Override