Create index pattern via Kibana API

Closes #216

.travis.yml

@@ -32,4 +32,4 @@ script:
   - docker-compose exec -T elasticsearch bin/init_sg.sh
   - docker-compose logs
   - curl --retry 10 --retry-delay 5 -D- http://localhost:9200/ -u kibanaserver:kibanaserver
-  - curl --retry 10 --retry-delay 5 -I http://localhost:5601/
+  - curl --retry 10 --retry-delay 5 -D- http://localhost:5601/api/status

README.md

@@ -133,16 +133,27 @@ about the index pattern configuration.
 
 #### On the command line
 
-Run this command to create a Kibana index pattern:
+Authenticate against Kibana:
 
 ```console
-$ curl -XPUT -D- 'http://localhost:9200/.kibana/doc/index-pattern:docker-elk' \
+$ curl -XPOST -D- 'http://localhost:5601/api/v1/auth/login' \
+    -c /tmp/sg_cookies \
     -H 'Content-Type: application/json' \
-    -u kibanaserver:kibanaserver \
-    -d '{"type": "index-pattern", "index-pattern": {"title": "logstash-*", "timeFieldName": "@timestamp"}}'
+    -H 'kbn-version: 6.1.0' \
+    -d '{"username":"kibanaserver","password":"kibanaserver"}'
 ```
 
-This will automatically be marked as the default index pattern as soon as the Kibana UI is opened for the first time.
+Create an index pattern via the Kibana API:
+
+```console
+$ curl -XPOST -D- 'http://localhost:5601/api/saved_objects/index-pattern' \
+    -b /tmp/sg_cookies \
+    -H 'Content-Type: application/json' \
+    -H 'kbn-version: 6.1.0' \
+    -d '{"attributes":{"title":"logstash-*","timeFieldName":"@timestamp"}}'
+```
+
+The created pattern will automatically be marked as the default index pattern as soon as the Kibana UI is opened for the first time.
 
 ## Configuration