直接使用命令的方式挂载 -v

  1.  #双向同步  主机:容器
  2.  docker run -it -v /home:/home centos /bin/bash
  4.  #容器中只读:ro，默认是读写rw
  5.  docker run -it -v /home:/home:or centos /bin/bash

查看挂载情况

  1.  [root@localhost] docker inspect a53fa0b6ed4e       
  3.         "Mounts": [
  4.             {
  5.                 "Type": "bind",
  6.                 "Source": "/home",
  7.                 "Destination": "/home",
  8.                 "Mode": "",
  9.                 "RW": true,
  10.                 "Propagation": "rprivate"
  11.             }
  12.         ],

具名和匿名挂载

  1. #匿名挂载
  2. docker run -it -v /home centos /bin/bash
  4. #-v 的时候不指定对应主机的路径，自动生产挂载文件夹，默认挂载在docker目录下
  5. [root@localhost ~]# docker volume ls    #看到本地有这样一个匿名挂载出来的
  6. DRIVER    VOLUME NAME
  7. local     7430d0a797a1764116ce480e10cbb861fe602c86f2f3535c4cd1020c7db312b9
  10. #具名挂载
  11. docker run -it -v /home 具体名称:centos /bin/bash
  12. #-v 的时候左边是一个文件夹名称,默认在docker的目录下
  14. [root@localhost ~]# docker volume ls
  15. DRIVER    VOLUME NAME
  16. local     7430d0a797a1764116ce480e10cbb861fe602c86f2f3535c4cd1020c7db312b9
  17. local     juming
  20. #查看卷的位置
  21. #所以匿名具名的数据卷在var/lib/docker/volumes/xxx/_data
  22. [root@localhost ~]# docker volume inspect juming
  23. [
  24.     {
  25.         "CreatedAt": "2022-01-21T06:43:42+08:00",
  26.         "Driver": "local",
  27.         "Labels": null,
  28.         "Mountpoint": "/var/lib/docker/volumes/juming/_data",
  29.         "Name": "juming",
  30.         "Options": null,
  31.         "Scope": "local"
  32.     }
  33. ]
  35. #默认卷的目录：var/lib/docker/volumes/
  36. [root@localhost ~]# cd /var/lib/docker/volumes/
  37. [root@localhost volumes]# ls
  38. 7430d0a797a1764116ce480e10cbb861fe602c86f2f3535c4cd1020c7db312b9  backingFsBlockDev  juming  metadata.db

dockerfile的方式

编译了之后,”dataC1”,”dataC2” 会匿名挂载到docker目录下

  1. FROM centos
  2. VOLUME ["dataC1","dataC2"]
  3. CMD echo "finished---------succes!"
  4. CMD /bin/bash