docker swarm 数据卷操作

桃扇骨 2022-11-30 04:08 95阅读 0赞

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### docker swarm 数据卷操作 ###

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**docker volume**

**命令格式：docker volume command**

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.

**create：**创建数据卷

**inspect：**查看数据卷详细信息

**ls：**列出数据卷

**prune：**删除不使用的数据卷

**rm：**删除数据卷

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**docker volume create**

**命令格式：docker volume create \[options\] volume\_name**

Usage:	docker volume create [OPTIONS] [VOLUME]
    
    Create a volume
    
    Options:
      -d, --driver string   Specify volume driver name (default "local")
          --label list      Set metadata for a volume
      -o, --opt map         Set driver specific options (default map[])

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**示例**

**创建数据卷：docker volume create my\_volume**

[root@centos docker]# docker volume create my_volume
    my_volume

**查看数据卷信息**

[root@centos docker]# docker volume inspect my_volume
    [
        {
            "CreatedAt": "2020-08-23T10:29:12+08:00",
            "Driver": "local",
            "Labels": {},
            "Mountpoint": "/var/lib/docker/volumes/my_volume/_data",
            "Name": "my_volume",
            "Options": {},
            "Scope": "local"
        }
    ]

**宿主机目录：/var/lib/docker/volumes/my\_volume/\_data**

**创建服务时，添加数据卷**

[root@centos docker]# docker service create --mount type=volume,source=my_volume,target=/test --name redis redis
    7x5mthpymieqrswmsj06dklsx
    overall progress: 1 out of 1 tasks 
    1/1: running   [==================================================>] 
    verify: Service converged

**服务创建后，添加数据卷**

[root@centos docker]# docker service update --mount-add type=volume,source=add_volume,target=/test2 redis
    redis
    overall progress: 1 out of 1 tasks 
    1/1: running   [==================================================>] 
    verify: Service converged

**服务创建后，删除数据卷**

[root@centos docker]# docker service update --mount-rm /test2 redis
    redis
    overall progress: 1 out of 1 tasks 
    1/1: running   [==================================================>] 
    verify: Service converged

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**示例 2**

**创建服务时，添加数据卷**

[root@centos docker]# docker service create --mount type=bind,source=/usr/docker/test,target=/test --name redis redis
    6u8rwge2zlsmin8gjsgcdp5c9
    overall progress: 1 out of 1 tasks 
    1/1: running   [==================================================>] 
    verify: Service converged

**数据卷添加、删除同上操作**