update docker kibana code

kibana/Dockerfile

@@ -1,9 +1,7 @@
-FROM kibana:5.1.2
+FROM kibana:5.2.0
 
 RUN apt-get update && apt-get install -y curl
 
 COPY ./config/kibana.yml /opt/kibana/config/kibana.yml
 
-RUN /usr/share/kibana/bin/kibana-plugin install http://packages.wazuh.com.s3-website-us-west-1.amazonaws.com/wazuhapp/wazuhapp.zip
-
 COPY config/wait-for-it.sh /

kibana/config/wait-for-it.sh

@@ -11,7 +11,14 @@ until curl -XGET $host:9200; do
   sleep 1
 done
 
-sleep 60
+sleep 30
 
 >&2 echo "Elastic is up - executing command"
+
+if /usr/share/kibana/bin/kibana-plugin list | grep wazuh; then
+  echo "Wazuh APP already installed"
+else
+  /usr/share/kibana/bin/kibana-plugin install http://packages.wazuh.com.s3-website-us-west-1.amazonaws.com/wazuhapp/wazuhapp.zip
+fi
+
 exec $cmd