编排elasticsearch

在 master 节点上编写/root/elasticsearch/docker-compose.yaml 文件，具体要求如下：
（1）容器 1 名称：elasticsearch；镜像：elasticsearch:7.8.0；端口映射：9200:9200；
（2）容器 2 名称：oap；镜像：apache/skywalking-oap-server:8.0.1-es7；端口映射： 11800:11800，12800:12800；
（3）容器 3 名称：ui；镜像：apache/skywalking-ui:8.0.1；端口映射：8082:8080

version: '3.3'
services:
  elasticsearch:
    image: elasticsearch:7.8.0
    container_name: elasticsearch
    restart: always
    ports:
      - 9200:9200
    environment:
      discovery.type: single-node
      TZ: Asia/Shanghai
    ulimits:
      memlock:
        soft: -1
        hard: -1
  oap:
    image: apache/skywalking-oap-server:8.0.1-es7
    container_name: oap
    depends_on:
      - elasticsearch
    links:
      - elasticsearch
    restart: always
    ports:
      - 11800:11800
      - 12800:12800
    environment:
      SW_STORAGE: elasticsearch7  
      SW_STORAGE_ES_CLUSTER_NODES: elasticsearch:9200
      TZ: Asia/Shanghai
  ui:
    image: apache/skywalking-ui:8.0.1
    container_name: ui
    depends_on:
      - oap
    links:
      - oap
    restart: always
    ports:
      - 8080:8080
    environment:
      SW_OAP_ADDRESS: oap:12800
      TZ: Asia/Shanghai