在学习go微服务时，用docker-compose启动nacos以及对应的mysql时出现上面的问题，

使用的yaml如下

version: "3.8"
services:
  nacos:
    image: nacos/nacos-server:${NACOS_VERSION}
    container_name: nacos-standalone-mysql
    env_file:
      - ../env/custom-application-config.env
    volumes:
      - ./standalone-logs/:/home/nacos/logs
      - ./init.d/application.properties:/home/nacos/conf/application.properties
    ports:
      - "8848:8848"
      - "9848:9848"
    depends_on:
      mysql:
        condition: service_healthy

    restart: on-failure
  mysql:
    container_name: mysql
    build:
      context: .
      dockerfile: ./image/mysql/5.7/Dockerfile
    image: example/mysql:5.7
    env_file:
      - ../env/mysql.env
    volumes:
      - ./mysql:/var/lib/mysql
    ports:
      - "3306:3306"
    healthcheck:
      test: [ "CMD", "mysqladmin" ,"ping", "-h", "localhost" ]
      interval: 5s
      timeout: 10s
      retries: 10

后续添加了镜像源https://docker.m.daocloud.io  就解决了

红色为新增的镜像源

"registry-mirrors": [
    "https://docker.m.daocloud.io",  
    "https://ustc-edu-cn.mirror.aliyuncs.com",
    "https://nrbewqda.mirror.aliyuncs.com",
    "https://ccr.ccs.tencentyun.com",
    "https://registry.docker-cn.com",
    "https://mirror.ccs.tencentyun.com",
    "https://registry.hub.docker.com"
  ]