Add tutor docker image (experimental)

CHANGELOG.md

@@ -4,6 +4,7 @@ Note: Breaking changes between versions are indicated by "💥".
 
 ## Unreleased
 
+- [Feature] Introduce tutor docker image
 - [Feature] Introduce `local hook` command for plugin development.
 - [Bugfix] Persist `private.txt` file between two runs of `config save`. (#247)
 - [Improvement] Added configuration values to limit the number of gunicorn workers for the LMS and CMS.

Dockerfile

@@ -0,0 +1,26 @@
+# This image is still very much a work in progress. It was tested on Linux and allows
+# to run tutor from inside docker. In practice, all "tutor" commands should be replaced # by:
+#
+#     docker run --rm -it -P \
+#        -v /var/run/docker.sock:/var/run/docker.sock \
+#         -v /opt/tutor:/opt/tutor tutor
+#
+# Note that this image does not come with any plugin, by default. Also, the image does
+# not include the `kubectl` binary, so `k8s` commands will not work.
+# Because this image is still experimental, and we are not quite sure if it's going to 
+# be very useful, we do not provide any usage documentation.
+
+FROM python:3.7
+
+# As per https://github.com/docker/compose/issues/3918
+COPY --from=library/docker:19.03 /usr/local/bin/docker /usr/bin/docker
+COPY --from=docker/compose:1.24.0 /usr/local/bin/docker-compose /usr/bin/docker-compose
+
+RUN pip install tutor-openedx
+RUN mkdir /opt/tutor
+ENV TUTOR_ROOT /opt/tutor
+
+EXPOSE 80
+EXPOSE 443
+
+ENTRYPOINT ["tutor"]