如何在docker-compose中将绝对主机路径安装为命名卷? [英] How can I mount an absolute host path as a named volume in docker-compose?
问题描述
我已经在此stackoverflow线程中尝试了该解决方案。如下所示。
I've already tried the solution in this stackoverflow thread. It did not work for me, as shown below.
这是我的 docker-compose.yml
文件:
version: "3.7"
services:
db:
image: mysql
volumes:
- data:/var/lib/mysql
volumes:
data:
driver_opts:
type: none
device: /usr/local/opt/mysql/mywebsite.com
o: bind
这是结果的 docker-compose up
Here's the result of docker-compose up
:
$ docker-compose up
Creating volume "mycontainer_data" with default driver
Recreating 45bc03b2c674_mycontainer_db_1 ... error
ERROR: for 45bc03b2c674_mycontainer_db_1 Cannot create container for service db: error while mounting volume with options: type='none' device='/usr/local/opt/mysql/mywebsite.com' o='bind': no such file or directory
ERROR: for db Cannot create container for service db: error while mounting volume with options: type='none' device='/usr/local/opt/mysql/mywebsite.com' o='bind': no such file or directory
ERROR: Encountered errors while bringing up the project.
我不是 type:none
还尝试了 type:volume
和 type:bind
,但是我遇到了同样的错误。
Instead of type: none
, I have also tried type: volume
and type: bind
, but I got the same error.
该目录显然存在:
$ ls -al /usr/local/opt/mysql/
...
drwxr-xr-x 2 cameronhudson staff 64 Jun 10 10:32 mywebsite.com
...
推荐答案
我的配置不起作用有两个原因。
There were 2 reasons why my configuration wasn't working.
首先, Docker不遵循符号链接,而 mysql
目录是符号链接:
First, Docker does not follow symlinks, and the mysql
directory is a symlink:
$ ls -al /usr/local/opt | grep mysql
lrwxr-xr-x 1 cameronhudson admin 22 Jan 23 17:42 mysql -> ../Cellar/mysql/8.0.13
但是,即使使用了没有任何符号链接的路径, /databases/mywebsite.com
,我继续遇到同样的没有这样的文件或目录
错误的经验。
However, even after using a path without any symlinks, /databases/mywebsite.com
, I continued the experience the same no such file or directory
error.
我发现,如果我更改了 docker-compose.yml
文件以将该目录挂载为无名卷,我会得到一个不同的结果,更合理的错误:
I found that if I changed my docker-compose.yml
file to mount this directory as a nameless volume, I got a different, more reasonable error:
version: "3.7"
services:
db:
image: mysql
volumes:
- /databases/mywebsite.com:/var/lib/mysql
新错误:
ERROR: for mycontainer_db_1 Cannot start service db: b'Mounts denied: \r\nThe path /databases/mywebsite.com\r\nis not shared from OS X and is not known to Docker.\r\nYou can configure shared paths from Docker -> Preferences... -> File Sharing.\r\nSee https://docs.docker.com/docker-for-mac/osxfs/#namespaces for more info.\r\n.'
在我在Docker Desktop中添加此路径后,我能够上 c $ c>使用我的原始配置的服务。它还适用于
类型:无
,类型:音量
,类型:绑定
,或完全省略 type
。
After I added this path in Docker Desktop, I was able to up
the services using my original configuration. It also worked with type: none
, type: volume
, type: bind
, or leaving type
out altogether.
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