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                ThinkChat2.0新版上線,更智能更精彩,支持會話、畫圖、視頻、閱讀、搜索等,送10W Token,即刻開啟你的AI之旅 廣告
                > 創建一個有數據卷的容器,并將這個容器當做volume掛載到其他容器中,這個僅有數據卷的容器可以被多個容器掛載,做到數據共享。 ![](https://img.kancloud.cn/c5/f6/c5f6f77fb407f33bea8d1e7009a9e6c0_1021x327.png) > 通過`--volumes-from`進行掛載后,當父容器被停止或刪除時,其他進行掛載的容器中的數據目錄依然存在,不會被清除,因此也可以理解為數據備份。 ![](https://img.kancloud.cn/a3/a1/a3a115b14c31aa140fa9486aed70ae14_944x327.png) **實例:** 1、啟動第一個容器 nginx03 ,并掛載目錄volume1 ``` [root@iZbp1bum6107bp8mgzkeunZ ~]# docker run -d -P --name nginx03 -v /volume1 nginx f9e7a88fdb13a36802882b81a729602901ed417bd95509b5f69284842caf1202 [root@iZbp1bum6107bp8mgzkeunZ ~]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES f9e7a88fdb13 nginx "/docker-entrypoint.…" 2 seconds ago Up 2 seconds 0.0.0.0:49155->80/tcp nginx03 be2efba8b54c mysql:5.7 "docker-entrypoint.s…" 3 days ago Up 3 days 33060/tcp, 0.0.0.0:3310->3306/tcp docker_mysql5.7 [root@iZbp1bum6107bp8mgzkeunZ ~]# docker exec -it f9e7a88fdb13 /bin/bash root@f9e7a88fdb13:/# ls bin boot dev docker-entrypoint.d docker-entrypoint.sh etc home lib lib64 media mnt opt proc root run sbin srv sys tmp usr var volume1 root@f9e7a88fdb13:/# ``` 2、啟動第二個容器,并通過 `--volumes-from` 將數據卷掛載到nginx03容器中 ``` [root@iZbp1bum6107bp8mgzkeunZ ~]# docker run -d -P --name nginx04 --volumes-from nginx03 nginx ea618f9ddac4ae8aa7acc3a902bb2e77ead16dcd711a641dc7a3cdb5a57789d7 [root@iZbp1bum6107bp8mgzkeunZ ~]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES ea618f9ddac4 nginx "/docker-entrypoint.…" 26 seconds ago Up 25 seconds 0.0.0.0:49156->80/tcp nginx04 f9e7a88fdb13 nginx "/docker-entrypoint.…" 7 minutes ago Up 7 minutes 0.0.0.0:49155->80/tcp nginx03 be2efba8b54c mysql:5.7 "docker-entrypoint.s…" 3 days ago Up 3 days 33060/tcp, 0.0.0.0:3310->3306/tcp docker_mysql5.7 [root@iZbp1bum6107bp8mgzkeunZ ~]# docker exec -it ea618f9ddac4 /bin/bash root@ea618f9ddac4:/# ls bin boot dev docker-entrypoint.d docker-entrypoint.sh etc home lib lib64 media mnt opt proc root run sbin srv sys tmp usr var volume1 root@ea618f9ddac4:/# ``` 可以看到,啟動的nginx04的目錄中也有volume1目錄。 3、在nginx03的數據卷目錄中創建一個文件后,在nginx04的容器數據卷目錄也可以查看到。因此說明,數據卷掛載是成功的,可以實現數據共享 ![](https://img.kancloud.cn/a0/35/a0353b58d011a6cfd41796c246923bc7_1796x332.png)
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