Anonymous Mount & named mount

#  Mount anonymously 
-v  Container path 

[[email protected] volumes]# docker run -d -P --name nginx02 -v /ect/nginx nginx    # -P  Random port 
1e7a6f078e1d149a28870b080e8889fa943c0a3be94cb98b34e4b68fbaca7706

[[email protected] volumes]# docker volume --help

Usage:  docker volume COMMAND

Manage volumes

Commands:
  create      Create a volume
  inspect     Display detailed information on one or more volumes
  ls          List volumes
  prune       Remove all unused local volumes
  rm          Remove one or more volumes

Run 'docker volume COMMAND --help' for more information on a command.

#  View all  volume  situation 
[[email protected] volumes]# docker volume ls    # The following are all anonymous volume mounts , stay -v  Only the path in the container is written , No path outside the container is written 
DRIVER    VOLUME NAME
local     85ceb1c90bf20638336243eba9185d8f733c19785e70699e95511e5022167d41
local     378d3ad8f128323116b58484f5fd19492b4e41d1213f729ed89cfc9c7f3524bc
local     94004da9bc144582354a4fa694fc647b7d700512eb1d0b220f47de9a521da753
local     40506974fbded9e29a84f42f33b737e28dc13eb0a821f1ebd991aa349bfac1bc
local     aaac05064af330ebf935a3c42bf51f49aa82f319714b9e865fed5f875ee885ef
local     c2956de8052af73afc7e00ebdc74f9a2f17e8f794bf551ce09fd45598e58c94f

#  View where the volume is located ：Mountpoint
[[email protected] ~]# docker volume inspect 85ceb1c90bf20638336243eba9185d8f733c19785e70699e95511e5022167d41
[
    {
        "CreatedAt": "2022-05-06T13:29:50+08:00",
        "Driver": "local",
        "Labels": null,
        "Mountpoint": "/var/lib/docker/volumes/85ceb1c90bf20638336243eba9185d8f733c19785e70699e95511e5022167d41/_data",
        "Name": "85ceb1c90bf20638336243eba9185d8f733c19785e70699e95511e5022167d41",
        "Options": null,
        "Scope": "local"
    }
]

#  Mount with a name 
-v  Volume name : Container path 

[[email protected] ~]# docker run -d -P --name nginx03 -v juming-nginx:/etc/nginx nginx
f89ab2645fc6cea48003e98d080b37d5aa5d3485740ee1d34df128c4872edcef
[[email protected] ~]# docker volume ls
DRIVER    VOLUME NAME
local     2eba47cade6c5b68f4f2179df0511e49113f4c507aad448b2bc25fbb99cc4ecf
local     5f5d46c0cfe40408f71515d12b6d2bab31cfbe478716f125bab34d43c65e0776
local     54c20bfffe906d311d4394dccb85c4f7f2d2cee4ed295ff9682856a7c2a7d07b
local     85ceb1c90bf20638336243eba9185d8f733c19785e70699e95511e5022167d41
local     378d3ad8f128323116b58484f5fd19492b4e41d1213f729ed89cfc9c7f3524bc
local     94004da9bc144582354a4fa694fc647b7d700512eb1d0b220f47de9a521da753
local     40506974fbded9e29a84f42f33b737e28dc13eb0a821f1ebd991aa349bfac1bc
local     aaac05064af330ebf935a3c42bf51f49aa82f319714b9e865fed5f875ee885ef
local     c2956de8052af73afc7e00ebdc74f9a2f17e8f794bf551ce09fd45598e58c94f
local     ccd77d73028a70a3433a374aea57d9e2c96828cddefe1a808eda0354ba3b7a44
local     juming-nginx
[[email protected] ~]# docker volume inspect juming-nginx
[
    {
        "CreatedAt": "2022-05-29T14:43:14+08:00",
        "Driver": "local",
        "Labels": null,
        "Mountpoint": "/var/lib/docker/volumes/juming-nginx/_data",
        "Name": "juming-nginx",
        "Options": null,
        "Scope": "local"
    }
]

  all docker The volume in the container , No directory specified （ You can use docker info Command view Directory ） In the case of..., the default is   /var/lib/docker/volumes/xxx/_data  Under the table of contents  

  We can easily find the volume through the named mount , In most cases, a named mount is used

-v / Container path         # Mount anonymously

-v Volume name :/ Container path         # Mount with a name

-v / Host path :/ Container path         # Specify the path to mount , This method does not produce anonymous volumes  

expand  

#  adopt  -v  Container path :ro  rw  Change read and write permissions 

ro  readonly     --  read-only 
rw  readwrite    --  Can read but write 

docker run -d -P --name nginx03 -v juming-nginx:/etc/nginx:ro nginx

#  Just see  ro  This means that this path can only be operated by the host , The container cannot be cleaned , The default is rw