无法使用 docker-compose 将 docker 文件夹安装到主机中

Question

I'm using a docker container to run cucumber test, after the test finished it will generate a report, I want to copy the report to my host machine. Have a report folder at the root of my project and create a test folder in Dockerfile and copy all the files into the container.
Expect: copy reports from container's /test/report folder to host's /report folder
docker-compose:

version: '3'
services:
  test:
  build:
    context: .
    args:
        xx : "xxx"
  volumes:
  - ./report:/test/report

Dockerfile:

RUN mkdir /test
WORKDIR /test
COPY . /test
RUN /test/testing.sh

have other configuration in Dockerfile but not related to volume/mount, so didn't post it here.

There should be three reports in the report folder. Inside the container, the reports can be seen at /test/report after the test, and if the /report in my host not null, it will override the reports in the container. But the volume doesn't work in reverse order. Running this on a windows machine currently.

Answer 1

Sounds like you want a bind mount. Also it is normally best to post your whole docker-compose file just so it's easier to debug/reproduce/help.

Try explicitly setting the volume as a bind mount and see how you go:

- type: bind
  source: ./report
  target: /test/report

https://docs.docker.com/compose/compose-file/compose-file-v3/#volumes