adding docker folder

docker/README.md

@@ -0,0 +1,27 @@
+# Why this?
+
+This part is used to test whole package before pushing it
+
+# How to use it?
+
+Just run in the folder:
+`bash run_local_tests.sh`. If nothing fails, then you can push your code to the repo.
+or run:
+`bash run_local_tests.sh --with-full-docker-cleanup`
+for cleaning up images as well
+
+# How is it composed of?
+
+  1. `Dockerfile_pre_test` will build the base image for the tests to be run into
+  2. `Dockerfile_test` will run the actual tests based on 1.
+  3. `run_local_tests.sh` to wrap this up
+
+# Warning
+
+The task requires some amount of CPU work and disk space (5GB per tests). Some clean up is included in the script.
+
+# Requirements
+
+ * [docker](https://docs.docker.com/engine/install/)
+ * bash
+ * rsync