docker-compose single node elasticsearch with kibana

docker-compose.yaml

version: '3.7'
services:
  elasticsearch:
    image: docker.elastic.co/elasticsearch/elasticsearch:7.6.0
    container_name: elasticsearch1
    environment:
      - node.name=elasticsearch1
      - cluster.name=docker-cluster
      - "ES_JAVA_OPTS=-Xms4096M -Xmx4096M"
      - "discovery.type=single-node"
    ulimits:
      nproc: 65535
      memlock:
        soft: -1
        hard: -1
    networks:
      - elastic
      - ingress
    ports:
      - 9200:9200
      - 9300:9300
  kibana:
    image: docker.elastic.co/kibana/kibana:7.6.0
    container_name: kibana
    environment:
      SERVER_NAME: localhost
      ELASTICSEARCH_URL: http://elasticsearch1:9200/
    ports:
      - 5601:5601
    networks:
      - elastic
      - ingress

networks:
  elastic:
  ingress: