Docker数据卷挂载相关

挂载的时候，类似于linux u盘插入的操作，宿主机目录会被复制进去。

命令启动挂载

挂载本地目录
必须写绝对路径

[root@warship ~]# docker run -itd  -v ./nginx:/etc/nginx  --name nginx4 nginx:latest
docker: Error response from daemon: create ./nginx: "./nginx" includes invalid characters for a local volume name, only "[a-zA-Z0-9][a-zA-Z0-9_.-]" are allowed. If you intended to pass a host directory, use absolute path.
See 'docker run --help'.
[root@warship ~]# docker run -itd  -v /root/data:/data  --name nginx4 nginx:latest
f7b03266c886098459adbbe9b2af2c5332527e38c4984bdc9d6f3cf293cb026f
[root@warship ~]# docker run -itd --name nginx5 --mount type=bind,source=/root/data/,target=/data,consistency=consistent nginx:latest
c9a8de286db5b6a68a1babb46f66788f41c6c0c948be1ff380337702a618adeb

Compose命令挂载

挂载可以使用相对路径，应该是根据yaml文件来定位，，普通docker的命令-v不能使用相对路径，没有yaml，不能定位？？？

version: '3'
services:
  mysql:
    container_name: blog-mysql
    image: mysql/blog
    privileged: true
    restart: always
    environment:
      MYSQL_DATABASE: blog
      MYSQL_ROOT_PASSWORD: 123456
      MYSQL_ROOT_HOST: '%'
    volumes:
      - ./data/mysql:/var/lib/mysql
      - ./data/blog.sql:/docker-entrypoint-initdb.d/blog.sql
    expose:
      - "3306"
# 测试时使用，正式环境最好不暴露端口到宿主机
#    ports:
#      - "3306:3306"
    command: [
      '--character-set-server=utf8mb4',
      '--collation-server=utf8mb4_unicode_ci'
    ]

更多参考:
https://blog.csdn.net/jb19900111/article/details/89333854