Use POD_NAME as the name for filebeat sidecar container

Author: jiangpengcheng

controllers/spec/common.go

@@ -2407,8 +2407,8 @@ func makeFilebeatContainer(volumeMounts []corev1.VolumeMount, envVar []corev1.En
 		Name:  "logTopic",
 		Value: logTopic,
 	}, corev1.EnvVar{
-		Name:  "logName",
-		Value: name,
+		Name:      "POD_NAME",
+		ValueFrom: &corev1.EnvVarSource{FieldRef: &corev1.ObjectFieldSelector{FieldPath: "metadata.name"}},
 	})
 
 	if authConfig != nil {

controllers/spec/template/filebeat-config.yaml.tmpl

@@ -6,7 +6,7 @@ output.pulsar:
   fast_fail: true
   url: \${brokerServiceURL}
   topic: \${logTopic}
-  name: \${logName}
+  name: \${POD_NAME}
   token: \${clientAuthenticationParameters:""}
   oauth2:
     enabled: \${oauth2Enabled:false}