Update fluentbit and enable tls.verify_hostname for splunk (#51)

Author: MichaelEischer

charts/images.yaml

@@ -6,7 +6,7 @@ images:
 - name: fluent-bit
   sourceRepository: https://github.com/fluent/fluent-bit
   repository: fluent/fluent-bit
-  tag: "2.1.10"
+  tag: "4.0.5"
 - name: audittailer
   sourceRepository: https://github.com/fluent/fluentd
   repository: fluent/fluentd

pkg/controller/audit/backend/splunk.go

@@ -87,6 +87,7 @@ func (s Splunk) FluentBitConfig(cluster *extensions.Cluster) fluentbitconfig.Con
 	if s.backend.TlsEnabled {
 		splunkConfig["tls"] = "on"
 		splunkConfig["tls.verify"] = "on"
+		splunkConfig["tls.verify_hostname"] = "on"
 		if s.backend.TlsHost != "" {
 			splunkConfig["tls.vhost"] = s.backend.TlsHost
 		}