Uneable to link Pycharm docker container with already existing container
I've created a Docker Image in order to be able to run a Docker Container with some services like gcloud datastore. If I run my application using my local packages I can connect to that container without any problem and access to the service.
However, if a try to use docker as an interpreter in Pycharm I cannot access to the service. The application works fine but Pycharm creates a new container that I'm not able to link with the one I created before. Is there any way of avoiding Pycharm creating a new container and using mine instead? If not, is there a way of modifying the container that Pycharm creates in order to be able to link it?
The whole point is to achieve to have a complete development environment included in a container and be able to run it without further installation.
Finally I found how to do it with Pycharm:
Instead of using the Docker Image as an interpreter a new Python configuration should be created.
New arguments can be added in Docker container settings so that Pycharm uses them when creating the container that runs the application. This way --link option can be specified and the user can work with several containers at the same time.