Update to v7.8.0

README.md

@@ -1,7 +1,7 @@
 # Elastic stack (ELK) on Docker
 
 [![Join the chat at https://gitter.im/deviantony/docker-elk](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/deviantony/docker-elk?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
-[![Elastic Stack version](https://img.shields.io/badge/ELK-7.7.1-blue.svg?style=flat)](https://github.com/deviantony/docker-elk/issues/508)
+[![Elastic Stack version](https://img.shields.io/badge/ELK-7.8.0-blue.svg?style=flat)](https://github.com/deviantony/docker-elk/issues/515)
 [![Build Status](https://api.travis-ci.org/deviantony/docker-elk.svg?branch=master)](https://travis-ci.org/deviantony/docker-elk)
 
 Run the latest version of the [Elastic stack][elk-stack] with Docker and Docker Compose.
@@ -170,8 +170,9 @@ Remove the `ELASTIC_PASSWORD` environment variable from the `elasticsearch` serv
 
 3. Replace usernames and passwords in configuration files
 
-Use the `kibana` user inside the Kibana configuration file (`kibana/config/kibana.yml`) and the `logstash_system` user
-inside the Logstash configuration file (`logstash/config/logstash.yml`) in place of the existing `elastic` user.
+Use the `kibana_system` user (`kibana` for releases <7.8.0) inside the Kibana configuration file
+(`kibana/config/kibana.yml`) and the `logstash_system` user inside the Logstash configuration file
+(`logstash/config/logstash.yml`) in place of the existing `elastic` user.
 
 Replace the password for the `elastic` user inside the Logstash pipeline file (`logstash/pipeline/logstash.conf`).
 
@@ -237,7 +238,7 @@ Create an index pattern via the Kibana API:
 ```console
 $ curl -XPOST -D- 'http://localhost:5601/api/saved_objects/index-pattern' \
     -H 'Content-Type: application/json' \
-    -H 'kbn-version: 7.7.1' \
+    -H 'kbn-version: 7.8.0' \
     -u elastic:<your generated elastic password> \
     -d '{"attributes":{"title":"logstash-*","timeFieldName":"@timestamp"}}'
 ```