pinggao187

mac: [jenkins: test timeout(mac) #4747](https://github.com/intel-analytics/analytics-zoo/issues/4747)

pr: [app test: variational autoencoder - faces added #863](https://github.com/intel-analytics/analytics-zoo/pull/863) @yangw1234 pls have a look

pass http://10.112.231.51:18888/job/ZOO-NB-Pip-AppTests-part3/606/

error again. http://10.112.231.51:18888/job/ZOO-NB-Pip-AppTests-part3/609/

jenkins slave dockerfile details 1.update OS to 18.04 2. Add bigdl env 3. The package is the same as the current one

> We plan to merge the test environment of bigdl-2.0 and AZ, and improve some functions, if you have any suggestions, please let me know. > > 一. zoo jenkins...

Running orca auto estimator tests ~~~ platform darwin -- Python 3.7.7, pytest-5.4.3, py-1.9.0, pluggy-0.13.1 -- /Users/arda/anaconda3/envs/py37/bin/python cachedir: .pytest_cache rootdir: /private/var/jenkins_home/workspace/ZOO-NB-UnitTests-2.4-PYTHON-MAC/pyzoo plugins: xdist-1.31.0, forked-1.3.0 collecting ... collected 39 items ../test/zoo/orca/automl/test_metrics.py::TestMetrics::test_highdim_array_metrics PASSED...

Running chronos tests ~~~ platform darwin -- Python 3.6.10, pytest-5.4.3, py-1.10.0, pluggy-0.13.1 -- /Users/arda/anaconda3/envs/py36/bin/python cachedir: .pytest_cache rootdir: /private/var/jenkins_home/workspace/ZOO-NB-UnitTests-2.4-PYTHON-MAC/pyzoo plugins: forked-1.1.2, xdist-1.31.0 collecting ... collected 199 items / 1 deselected /...

Running orca learn ray tests ~~~ platform darwin -- Python 3.6.10, pytest-5.4.3, py-1.10.0, pluggy-0.13.1 -- /Users/arda/anaconda3/envs/py36/bin/python cachedir: .pytest_cache rootdir: /private/var/jenkins_home/workspace/ZOO-NB-UnitTests-3.1-PYTHON-MAC/pyzoo plugins: forked-1.1.2, xdist-1.31.0 collecting ... collected 6 items ../test/zoo/orca/learn/ray/mxnet/test_mxnet_gluon.py::TestMXNetGluon::test_gluon PASSED...

[feature request: Jenkin config should also be control by git and go though code review process #411](https://github.com/intel-analytics/arda-docker/issues/411) [feature request: Testing environment (dockerfile) should also be controled by git #412](https://github.com/intel-analytics/arda-docker/issues/412)