How to mount files in docker-compose.yml?

Question

Docker

for example you specify
volumes:
- '/srv/redmine/files/:/usr/src/redmine/files/'
- '/srv/redmine/config/configuration.yml:/usr/src/redmine/config/configuration.yml'
docker correctly creates the /srv/redmine/config/configuration.yml folder and mounts it as a volume.
how to tell him that this is a file?

Answer 1

Docker running in a virtual machine?