Docker 学习6 Docker存储卷

一、什么是存储卷

  

二、为什么要用到数据卷

  

三、数据卷是怎么被管理的

  

  

四、存储卷种类

  

五、在容器中使用存储卷

  

  1、只声明容器路径

[root@localhost docker]# docker run --name b2 -it -v /data busybox
/ # ls /
bin   data  dev   etc   home  proc  root  sys   tmp   usr   var

[root@localhost ~]# docker inspect -f {{.Mounts}} b2
[{volume ef7928df9feaa0d01e5219f7a0a52c84aa902a9c91effdb7ff3fd79d152f9ef8 /var/lib/docker/volumes/ef7928df9feaa0d01e5219f7a0a52c84aa902a9c91effdb7ff3fd79d152f9ef8/_data /data local  true }]

  也可以通过docker inspect 容器名 查看到卷名称和宿主机上的卷名称

    

  2、声明主机路径和容器路径

[root@localhost docker]# docker run --name b2 -it --rm -v /data/volumes/b2:/data busybox
/ # ls
bin   data  dev   etc   home  proc  root  sys   tmp   usr   var

    通过docker inspect b2查看Mounts信息

      

 六、共享存储卷(即joind container,相当于共享名称空间中的文件系统)

  1、创建容器1

[root@localhost docker]# docker run --name b2 -it --rm -v /data/volumes/b2:/data busybox
/ # ifconfig 
eth0      Link encap:Ethernet  HWaddr 02:42:0A:00:00:05  
          inet addr:10.0.0.5  Bcast:10.0.255.255  Mask:255.255.0.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:8 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:648 (648.0 B)  TX bytes:0 (0.0 B)

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

  2、创建容器2,并且共享容器1的网络空间和文件系统

[root@localhost ~]# docker run --name b3 -it --network container:b2 --volumes-from b2  busybox 
/ # ifconfig 
eth0      Link encap:Ethernet  HWaddr 02:42:0A:00:00:05  
          inet addr:10.0.0.5  Bcast:10.0.255.255  Mask:255.255.0.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:8 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:648 (648.0 B)  TX bytes:0 (0.0 B)

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

/ # ls
bin   data  dev   etc   home  proc  root  sys   tmp   usr   var

 

posted @ 2019-04-14 11:14  Presley  阅读(296)  评论(0编辑  收藏  举报