Docker14:具名挂载匿名挂载

匿名挂载


# 匿名挂载，-v 容器内路径，-P（大P）随机映射端口
docker run -d -P --name nginx01 -v /etc/nginx nginx


root@docker:/home/mysql/data# docker run -d -p --name nginx02 -v /etc/nginx nginx
docker: Invalid containerPort: --name.
See 'docker run --help'.
root@docker:/home/mysql/data# docker run -d -P --name nginx01 -v /etc/nginx nginx
ba8c0f6ddf4bc53269ba8c43d4dc9335f39bcae37fb3045f92950d64478b2183
root@docker:/home/mysql/data# docker volume ls
DRIVER    VOLUME NAME
local     e15f1a59c6e79686be0a04d58f867fa94379fa0266cceff5c3c36a337601e8ed
local     portainer_data
root@docker:/home/mysql/data

具名挂载


docker run -d -P --name nginx02 -v juming-nginx:/etc/nginx nginx


root@docker:/home/henggao/Desktop# docker run -d -P --name nginx02 -v juming-nginx:/etc/nginx nginx
030c3120dc08d58a24766538b453a77b7c892d70b7bbac5e5f8be8543c204027
root@docker:/home/henggao/Desktop# docker volume ls
DRIVER    VOLUME NAME
local     e15f1a59c6e79686be0a04d58f867fa94379fa0266cceff5c3c36a337601e8ed
local     juming-nginx
local     portainer_data
root@docker:/home/henggao/Desktop# docker volume inspect juming-nginx
[
    {
        "CreatedAt": "2021-11-16T22:51:12+08:00",
        "Driver": "local",
        "Labels": null,
        "Mountpoint": "/var/lib/docker/volumes/juming-nginx/_data",
        "Name": "juming-nginx",
        "Options": null,
        "Scope": "local"
    }
]
root@docker:/home/henggao/Desktop#

所有的docker容器内的卷，没有指定目录的将情况下都是在/var/lib/docker/volumes/xxxxxx/_data，我们通过具名挂载可以方便地找到卷，大多数情况使用具名挂载。


-v 容器内路径 # 匿名挂载
-v 卷名：容器内路径 #具名挂载
-v /宿主机路径：容器内路径 # 指定路径挂载


# ro readonly # 只读
# rw readwrite #可读可写
docker run -d -P --name nginx02 -v juming-nginx:/etc/nginx:ro nginx
docker run -d -P --name nginx02 -v juming-nginx:/etc/nginx:rw nginx
# ro 只要看到ro就说明这个路径只能通过宿主机来操作，容器内部无法操作！