docker数据卷
管理数据卷
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
创建数据卷，
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| docker volume create one-volume
one-volume
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查看数据卷，
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| docker volume ls
DRIVER VOLUME NAME
local 4d8f935f757dbb8ac4b10430f5aab5ca75da0858dd1baa71918ea8c7ad07cc2a
local 9c68e6e515d217439ba91b7afd022015404f26ca3986463823b3e470394157cd
local 9f59429de397d54c782fa11ae6cd2107079f97ba91b7008e2b5a541b0b1f4b95
local 78e96e66f3fdef7fd4e316400a08f518ac6568f84704ca388d77a82b0a8f1509
local 01714f7baa8968d17ea4b17b2fea9622463bfc43a42c15f4625e67ec0ca69181
local bc2041319f5b1d890902fd3d677efcd38730ee60d92f805e25318c01a1a8b740
local f5a6a2826e5f5f455b47fb563856a6947a8b74c77f5a7b4c10e8547c3fceccf2
local one-volume
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容器配置数据卷
启动容器ubuntu，并指定数据卷，
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| docker run -itd --mount source=one-volume,target=/opt --hostname ubuntu.com --name ubuntu ubuntu /bin/bash
8bde099b742cc9702c9cb1b939e2de933f793afadafb587a2b0e1f0c253959c7
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| docker inspect --format '\{\{.Mounts\}\}' ubuntu
[{volume one-volume /var/lib/docker/volumes/one-volume/_data /opt local z true }]
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向/opt/hello写入hello，
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| docker exec -it ubuntu /bin/bash -c 'echo "hello" > /opt/hello'
docker exec -it ubuntu /bin/bash -c 'cat /opt/hello'
hello
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容器复用容器数据卷
启动容器busybox，并从容器busybox复用数据卷，
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| docker run -itd --volumes-from ubuntu --hostname busybox.com --name busybox busybox /bin/sh
638d959856e08b73e14bb9d757d5512f6a6da5f132b44c9d0c03020a27e8fcd4
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| docker inspect --format '\{\{.Mounts\}\}' busybox
[{volume one-volume /var/lib/docker/volumes/one-volume/_data /opt local true }]
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访问共享文件，
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| docker exec -it busybox /bin/sh -c 'cat /opt/hello'
hello
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数据卷映射
在docker run中，使用-v开启容器数据卷，
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| docker run -itd -v /opt --hostname busybox.com --name busybox busybox /bin/sh
9a4900b2a5f69037f33a57a02858a9f3b9c25bd4ae799e3ea2008ce17b1fc688
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| docker inspect --format '\{\{.Mounts\}\}' busybox
[{volume 941a2e4bdf9f76c4e07c0b3fd67688495b384f8b9ecfa02332bb8ec1e369ac31 /var/lib/docker/volumes/941a2e4bdf9f76c4e07c0b3fd67688495b384f8b9ecfa02332bb8ec1e369ac31/_data /opt local true }]
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-v HOST_PATH:CONTAINER_PATH可以指定宿主机路径作为数据卷，
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| docker run -itd -v /home/XXX/expr/docker/A:/opt --hostname busybox.com --name busybox busybox /bin/sh
5584070ff88e4d62a3bb84fbf5978d9efe5a1185cbbca54b12bbad51ee3b9e78
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| docker inspect --format '\{\{.Mounts\}\}' busybox
[{bind /home/cheney/expr/docker/A /opt true rprivate}]
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