Add Dockerfile for building test environment

[leonwanghui]

Signed-off-by: leonwanghui wanghui71leon@gmail.com

Introduction

This patch mainly focuses on solving the issue #31

How to build mock-broker and test-job docker image

These commands below present how to building test environment:

make docker

After this finished, you will find two docker images created:

root@vultr:~/workspace/osb-checker# docker images
REPOSITORY                         TAG                 IMAGE ID            CREATED             SIZE
osb-checker/test-job               2.13                bd833779fd29        6 seconds ago       676MB
osb-checker/mock-broker            2.13                deb24670b84c        10 seconds ago      672MB

How to run these two docker images

docker run -d --net=host osb-checker/mock-broker:2.13
docker run -it --net=host osb-checker/test-job:2.13

[cfdreddbot]

Hey leonwanghui!

Thanks for submitting this pull request! I'm here to inform the recipients of the pull request that you and the commit authors have already signed the CLA.

[norshtein]

The PR mostly LGTM. One thing is, better to create a doc and add the description about how to use the docker image to the doc.

[zhongyi-zhang]

I think the CI should be updated, too.

[norshtein]

LGTM