create a is_systemd helper

Signed-off-by: Alfredo Deza <alfredo.deza@inktank.com>
add a helper for checking el-like distros

Signed-off-by: Alfredo Deza <alfredo.deza@inktank.com>
when creating monitors, enable the service on el-like distros

Signed-off-by: Alfredo Deza <alfredo.deza@inktank.com>
create grep functions for remote hosts

Signed-off-by: Alfredo Deza <alfredo.deza@inktank.com>
enable the ceph service when creating an mds

Signed-off-by: Alfredo Deza <alfredo.deza@inktank.com>
enable the ceph service when creating an osd

Signed-off-by: Alfredo Deza <alfredo.deza@inktank.com>
add tests for the grep utilities in remotes

Signed-off-by: Alfredo Deza <alfredo.deza@inktank.com>