Feature #326: Ubuntu 18.04 Bionic Support

[zhmurko]

No description provided.

[zhmurko]

it seems like race condition for service restart and reload invocation:

  * service[icinga2] action reload
    
    ================================================================================
    Error executing action `reload` on resource 'service[icinga2]'
    ================================================================================
    
    Mixlib::ShellOut::ShellCommandFailed
    ------------------------------------
    Expected process to exit with [0], but received '1'
    ---- Begin output of /bin/systemctl --system reload icinga2 ----
    STDOUT: 
    STDERR: Job for icinga2.service failed because the control process exited with error code. See "systemctl status icinga2.service" and "journalctl -xe" for details.
    ---- End output of /bin/systemctl --system reload icinga2 ----
    Ran /bin/systemctl --system reload icinga2 returned 1