Ceph

Symptom: ceph-detect-init "make check" test on luminous recently started to fail on openSUSE Leap 42.3:

03:08:21 22/149 Test #8: run-tox-ceph-detect-init ................***Failed 26.75 sec

This happens because tox is configured to run the ceph-detect-init unit tests in both py2 and py3 environments, and the py3 environment can no longer install its dependencies:

 
03:08:21 py3 create: /opt/j/ws/mkck/src/ceph-detect-init/.tox/py3
03:08:21 py3 installdeps: --find-links=file:///opt/j/ws/mkck/src/ceph-detect-init/wheelhouse, -r/opt/j/ws/mkck/src/ceph-detect-init/requirements.txt, -r/opt/j/ws/mkck/src/ceph-detect-init/test-requirements.txt
03:08:21 WARNING: Discarding $PYTHONPATH from environment, to override specify PYTHONPATH in 'passenv' in your configuration.
03:08:21 ERROR: invocation failed (exit code 1), logfile: /opt/j/ws/mkck/src/ceph-detect-init/.tox/py3/log/py3-1.log
03:08:21 ================================== log start ===================================
03:08:21 DEPRECATION: Python 3.4 support has been deprecated. pip 19.1 will be the last one supporting it. Please upgrade your Python as Python 3.4 won't be maintained after March 2019 (cf PEP 429).

The fix is to simply disable py3 in tox.ini, as was done for the ceph-disk tox tests long ago - see #17923.