[英]How to set a path on host for a named volume in docker-compose.yml
Example below creates dbdata named volume and references it inside db service:下面的示例创建名为 volume 的dbdata并在db服务中引用它:
version: '2'
services:
db:
image: mysql
volumes:
- dbdata:/var/lib/mysql
volumes:
dbdata:
driver: local
(from https://stackoverflow.com/a/35675553/4291814 ) (来自https://stackoverflow.com/a/35675553/4291814 )
I can see the path for the volume defaults to:我可以看到默认卷的路径为:
/var/lib/docker/volumes/<project_name>_dbdata
My question is how to configure the path on host for the dbdata
volume?我的问题是如何为
dbdata
卷配置主机路径?
With the local
volume driver comes the ability to use arbitrary mounts; local
卷驱动程序可以使用任意挂载; by using a bind mount you can achieve exactly this.通过使用绑定安装,您可以完全实现这一点。
For setting up a named volume that gets mounted into /srv/db-data
, your docker-compose.yml
would look like this:要设置挂载到
/srv/db-data
的命名卷,您docker-compose.yml
将如下所示:
version: '2'
services:
db:
image: mysql
volumes:
- dbdata:/var/lib/mysql
volumes:
dbdata:
driver: local
driver_opts:
type: 'none'
o: 'bind'
device: '/srv/db-data'
I have not tested it with the version 2 of the compose file format, but https://docs.docker.com/compose/compose-file/compose-versioning/#version-2 does not indicate, that it should not work.我还没有使用 compose 文件格式的第 2 版对其进行测试,但是https://docs.docker.com/compose/compose-file/compose-versioning/#version-2没有表明它不应该工作。
I've also not tested it on Windows...我也没有在 Windows 上测试过它......
The location of named volumes is managed by docker;命名卷的位置由 docker 管理; if you want to specify the location yourself, you can either "bind mount" a host directory, or use a volume plugin that allows you to specify a path.
如果您想自己指定位置,您可以“绑定挂载”一个主机目录,或者使用允许您指定路径的卷插件。
You can find some details in another answer I posted recently;您可以在我最近发布的另一个答案中找到一些详细信息; https://stackoverflow.com/a/36321403/1811501
https://stackoverflow.com/a/36321403/1811501
As of docker-compose v3.2
you can now do it as follows:从
docker-compose v3.2
您现在可以执行以下操作:
https://docs.docker.com/compose/compose-file/compose-file-v3/#long-syntax-3 https://docs.docker.com/compose/compose-file/compose-file-v3/#long-syntax-3
version: "3.2"
services:
db:
image: mysql
volumes:
- type: volume # Or use bind
source: /srv/db-data
target: /var/lib/mysql
volumes:
db-data:
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