RFR(S): 8221710: [TESTBUG] more configurable parameters for docker testing

[Leonid Mesnik]

Hi

Looks good to me. Please get approval from 'R'eviewer also.

Leonid
On Fri, 2019-03-29 at 16:41 -0700, mikhailo.seledtsov at oracle.com wrote:
> These new parameters are introduced to help in development and 
> troubleshooting of the Docker tests.
> 
> 
> 1. Docker command: jdk.test.docker.command
>      On some systems docker is installed in locations other than /bin
> or 
> /usr/bin. JTreg harness sets PATH to these locations, hence other 
> locations such as /usr/local/bin/ is not visible/executable within
> JTReg 
> tests. A good practice in this case is to provide the full path to
> the 
> executable for the test.
> 
> 2. Retaining image after test: jdk.test.docker.retain.image
>      This is very useful for diagnostic purposes, for trouble
> shooting. 
> By default, docker images created by the tests are removed at the end
> of 
> the test.
>      Specifying this option to "true" provides an ability to inspect
> the 
> image, run the image, etc.
> 
> 3. Overriding JDK under test just for docker tests: 
> jdk.test.docker.jdk.under.test
>      This feature is useful when developing tests on non-Linux
> platform. 
> In such cases, the default JDK under test is non-Linux, hence will
> not 
> run inside a docker container. This property allows user to point
> the 
> docker tests to JDK-under-test that is built for Linux.
> 
> Also, now that jtreg.SkippedException is available started using it.
> 
>      JBS: https://bugs.openjdk.java.net/browse/JDK-8221710
>      Webrev: http://cr.openjdk.java.net/~mseledtsov/8221710.00/
>      Testing: ran docker tests
> 
> 
> Thank you,
> Misha