WIP: Cleanup repository from unused files and make tests pass Travis

[KKoukiou]

• Use roles from https://github.com/oVirt/ where possible
• Remove unused files and tests
  • No need to test upgrade here. It's tested on oVirt.engine-setup role
• Replace the ovirt-4.2 repository since it's released
• Change tests images to use UTF-8 locale because of following error:

ERROR: [root@47733bdc41ba /]# cat /var/lib/pgsql/initdb_rh-postgresql95-postgresql.log /etc/profile.d/lang.sh: line 19: warning: setlocale: LC_CTYPE: cannot change locale (en_US.UTF-8): No such file or directory /etc/profile.d/lang.sh: line 20: warning: setlocale: LC_COLLATE: cannot change locale (en_US.UTF-8): No such file or directory /etc/profile.d/lang.sh: line 23: warning: setlocale: LC_MESSAGES: cannot change locale (en_US.UTF-8): No such file or directory /etc/profile.d/lang.sh: line 26: warning: setlocale: LC_NUMERIC: cannot change locale (en_US.UTF-8): No such file or directory /etc/profile.d/lang.sh: line 29: warning: setlocale: LC_TIME: cannot change locale (en_US.UTF-8): No such file or directory The files belonging to this database system will be owned by user "postgres". This user must also own the server process.

initdb: invalid locale settings; check LANG and LC_* environment variables

[mykaul]

Are you running ansible-lint on them?

[KKoukiou]

@mykaul Yes. You can take a look for detailed overview of what tests are run in tox.ini file and also in the .travis.yml for the docker tests.