Update elastic node name

ansible/roles/elasticsearch/files/elasticsearch.yml

@@ -5,7 +5,7 @@ network.host: 0.0.0.0
 http.port: 9200
 
 cluster.name: unblink
-cluster.initial_master_nodes: ["es1-master"]
+cluster.initial_master_nodes: ["elastic1"]
 
 # ml is not supported on FreeBSD
 xpack.ml.enabled: false