Copy default Logstash and Kibana config files

Facilitates customization.
Ref #211

README.md

@@ -135,42 +135,13 @@ configuration of a component.
 
 ### How can I tune the Kibana configuration?
 
-The Kibana container is using the [shipped
-configuration](https://github.com/elastic/kibana-docker/blob/master/build/kibana/config/kibana.yml).
-
-If you want to override the default configuration, create a file `kibana/config/kibana.yml` and add your configuration
-in it.
-
-Then, you'll need to map your configuration file inside the container in the `docker-compose.yml` file. Update the
-kibana service declaration to:
-
-```yml
-kibana:
-
-  volumes:
-    - ./kibana/config/kibana.yml:/usr/share/kibana/config/kibana.yml
-```
+The Kibana default configuration is stored in `kibana/config/kibana.yml`.
 
 It is also possible to map the entire `config` directory instead of a single file.
 
 ### How can I tune the Logstash configuration?
 
-The Logstash container is using the [shipped
-configuration](https://github.com/elastic/logstash-docker/blob/master/build/logstash/config/logstash.yml).
-
-If you want to override the default configuration, create a file `logstash/config/logstash.yml` and add your
-configuration in it.
-
-Then, you'll need to map your configuration file inside the container in the `docker-compose.yml` file. Update the
-Logstash service declaration to:
-
-```yml
-logstash:
-
-  volumes:
-    - ./logstash/pipeline:/usr/share/logstash/pipeline
-    - ./logstash/config/logstash.yml:/usr/share/logstash/config/logstash.yml
-```
+The Logstash configuration is stored in `logstash/config/logstash.yml`.
 
 It is also possible to map the entire `config` directory instead of a single file, however you must be aware that
 Logstash will be expecting a

docker-compose.yml

@@ -6,7 +6,7 @@ services:
     build:
       context: elasticsearch/
     volumes:
-      - ./elasticsearch/config/elasticsearch.yml:/usr/share/elasticsearch/config/elasticsearch.yml
+      - ./elasticsearch/config/elasticsearch.yml:/usr/share/elasticsearch/config/elasticsearch.yml:ro
     ports:
       - "9200:9200"
       - "9300:9300"
@@ -20,6 +20,7 @@ services:
     build:
       context: logstash/
     volumes:
+      - ./logstash/config/logstash.yml:/usr/share/logstash/config/logstash.yml:ro
       - ./logstash/pipeline:/usr/share/logstash/pipeline:ro
     ports:
       - "5000:5000"
@@ -33,6 +34,8 @@ services:
   kibana:
     build:
       context: kibana/
+    volumes:
+      - ./kibana/config/kibana.yml:/usr/share/kibana/config/kibana.yml:ro
     ports:
       - "5601:5601"
     networks:

kibana/config/.placeholder

-Ensure the existence of the parent folder.

kibana/config/kibana.yml

+---
+## Default Kibana configuration from kibana-docker.
+## from https://github.com/elastic/kibana-docker/blob/master/build/kibana/config/kibana-x-pack.yml
+#
+server.name: kibana
+server.host: "0"
+elasticsearch.url: http://elasticsearch:9200
+elasticsearch.username: kibana
+elasticsearch.password: changeme
+xpack.monitoring.ui.container.elasticsearch.enabled: true

logstash/config/.placeholder

-Ensure the existence of the parent folder.

logstash/config/logstash.yml

+---
+## Default Logstash configuration from logstash-docker.
+## from https://github.com/elastic/logstash-docker/blob/master/build/logstash/config/logstash-x-pack.yml
+#
+http.host: "0.0.0.0"
+path.config: /usr/share/logstash/pipeline
+xpack.monitoring.elasticsearch.url: http://elasticsearch:9200
+xpack.monitoring.elasticsearch.username: logstash_system
+xpack.monitoring.elasticsearch.password: changeme