与主机共享目录或卷与容器 [英] Share directory or volume with container from host

问题描述

我有一个目录（可能是以后的卷），我想与我的所有交互式容器共享。我知道，原生Docker卷存储在 / var / lib / docker / volumes 和 docker run -v 最简单的方法，但我认为数据卷容器是一个更加标准化的方式。我不知道如何从目录或现有的其他卷创建此卷容器。可能是错误的方法？

I have a directory(maybe later volume), that I would like to share with all my interactive containers. I know, that native Docker volumes are stored under /var/lib/docker/volumes and docker run -v seems the easiest way, but I think Data Volume Container is a much more standardized way. I don't know, how to create this volume container from a directory or an existing another volume. Maybe is it wrong method?

推荐答案

有两种创建和共享卷的方法：1.使用 Dockerfile 中的VOLUME 指令。 2在容器运行期间指定 -v< volume_name> 选项，然后使用 - volumes-from =< container> 每个随后的容器需要共享数据。这是一个ex与以后：

There are two ways to create and share volumes: 1. using the VOLUME instruction on the Dockerfile. 2 Specifying the -v <volume_name> option during container runtime and later using --volumes-from=<container> with every subsequent container which need to share the data. Here is an ex with the later:

1. 启动您的第一个容器与 -v ，然后在共享卷的目录下添加一个测试文件。

1. Start your first container with -v, then add a test file under the directory of the shared volume.

docker run -it -v /test-volume --name=testimage1 ubuntu:14.04 /bin/bash

root@ca30f0f99401:/# ls
bin  boot  dev  etc  home  lib  lib64  media  mnt  opt  proc  root  run  sbin  srv  sys  test-volume ===> test-volume dir got created here

root@ca30f0f99401:/# touch test-volume/1

root@ca30f0f99401:/# cat > test-volume/1     
Test Message!

1. 从主机操作系统，您可以通过检查您的容器来获取卷的详细信息：

docker inspect ca30f0f99401 | grep -i -color -E'^ | Vol'

"Mounts": 
        {
            "Name": "025835b8b47d282ec5f27c53b3165aee83ecdb626dc36b3b18b2e128595d9134",
            "Source": "/var/lib/docker/volumes/025835b8b47d282ec5f27c53b3165aee83ecdb626dc36b3b18b2e128595d9134/_data",
            "Destination": "/test-volume",
            "Driver": "local",
            "Mode": "",
            "RW": true 

"Image": "ubuntu:14.04",
    "Volumes": {
        "/test-volume": {} }

1. 使用共享卷启动另一个容器，并检查共享文件夹/文件是否存在。

$ docker run -it --name=testimage2 --volumes-from=testimage1 ubuntu:14.04 /bin/bash

root@60ff1dcebc44:/# ls 
bin  boot  dev  etc  home  lib  lib64  media  mnt  opt  proc  root  run  sbin  srv  sys  test-volume  tmp  usr  var

root@60ff1dcebc44:/# cat test-volume/1
Test Message!

1. Goto第3步与新集装箱共享卷。

这篇关于与主机共享目录或卷与容器的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！