Add network names

docker-compose/docker-compose.yml

@@ -27,7 +27,6 @@ services:
   database:
     image: postgres
     container_name: postgres01
-    hostname: database
     env_file: database.env
     ports:
       - "5432:5432"
@@ -36,7 +35,6 @@ services:
   es01:
     image: docker.elastic.co/elasticsearch/elasticsearch:7.15.2
     container_name: es01
-    hostname: searchengine
     environment:
       - node.name=es01
       - cluster.name=es-docker-cluster
@@ -102,5 +100,7 @@ volumes:
 networks:
   elastic:
     driver: bridge
+    name: searchengine
   database:
     driver: bridge
+    name: database