Symbolic Link Host to Docker Container

问题:

Well, Basically I wanna create a Symbolic link "ln -s" from my host to my container.

To sum up: the host folder .m2 of the host must have a Symbolic link to the .m2 folder inside my container, something like: $ ln -s containerIp:/root/.m2 myContainerAlias

I've seen the below posts but they didn't help me since I don't wanna copy the files to my local host.

Docker - copy file from container to host

Apache in Docker says: Symbolic link not allowed

https://omarabid.com/symlink-to-a-mounted-volume-in-docker/

Edited:

I've found another valuable Issue here:

How to mount a directory in the docker container to the host? Thanks...

回答1:

If you want to share data between the host and a container, or visa versa, you need to use a docker volume.

There are many ways to do this, but for your situation the easiest is to mount a host directory as a data volume. This is done with the -v flag with docker. For example docker run -it -v /path/to/.m2:/root/.m2 ubuntu:latest /bin/bash will run the ubuntu:latest image with the host directory /path/to/.m2 'symlinked' to the container directory /root/.m2.

Hope that helps.

回答2:

Sounds like you're trying to optimize a Maven build running inside a container?

docker run -it --rm -w /opt/maven \
   -v $PWD:/opt/maven \
   -v $HOME/.m2:/root/.m2 \
   maven:3.3-jdk-8 \
   mvn clean install

Example

• How to build a docker container for a java app

回答3:

For further investigation about this question. I would like to notify that I've "solved" my issue with the same approach than @Kai Hofstetter in the following post: How to mount a directory in the docker container to the host?