Add a filebeat container together with esr-server

With this modification, the log of esr-server will be in filebeat.

Change-Id: I647fc665ed383b58c14a34d6598e41cd6842b1ec
Issue-ID: AAI-756
Signed-off-by: LiZi <li.zi30@zte.com.cn>
diff --git a/kubernetes/esr/values.yaml b/kubernetes/esr/values.yaml
index b942672..85b34ac 100644
--- a/kubernetes/esr/values.yaml
+++ b/kubernetes/esr/values.yaml
@@ -10,3 +10,5 @@
   image: nexus3.onap.org:10001/onap/aai/esr-gui:v1.0.0
   port: 8080
   replicas: 1
+filebeat:
+  image: docker.elastic.co/beats/filebeat:5.5.0