MINOR: Improve instructions for running system tests with docker
Author: Eno Thereska
Reviewers: Ismael Juma
Closes from enothereska/minor-docker-docs
@@ -10,9 +10,9 @@ Running tests using docker
--------------------------
Docker containers can be used for running kafka system tests locally.
* Requirements
- - Docker 1.12.3 is installed and running on the machine.
- - Test require a single kafka_*SNAPSHOT.tgz to be present in core/build/distributions.
- This can be done by running ./gradlew clean releaseTarGz
+ - Docker 1.12.3 (or higher) is installed and running on the machine.
+ - Test require a single kafka_*SNAPSHOT.tgz to be present in core/build/distributions, as well as the system test libs.
+ This can be done by running ./gradlew clean systemTestLibs releaseTarGz
* Run all tests
```
bash tests/docker/run_tests.sh
