old_contents: import mon  # noqa
  from ceph_deploy.hosts.centos import pkg  # noqa
  from ceph_deploy.hosts.centos.install import repo_install  # noqa
  from install import install, mirror_install  # noqa
  from uninstall import uninstall  # noqa
  from ceph_deploy.util import pkg_managers
  
  # Allow to set some information about this distro
  #
  
  distro = None
  release = None
  codename = None
  
  def choose_init():
      """
      Select a init system
  
      Returns the name of a init system (upstart, sysvinit ...).
      """
      return 'sysvinit'
  
  
  def get_packager(module):
      if module.normalized_release.int_major >= 22:
          return pkg_managers.DNF(module)
      else:
          return pkg_managers.Yum(module)
  
new_contents: import mon  # noqa
  from ceph_deploy.hosts.centos import pkg  # noqa
  from ceph_deploy.hosts.centos.install import repo_install  # noqa
  from install import install, mirror_install  # noqa
  from uninstall import uninstall  # noqa
  from ceph_deploy.util import pkg_managers
  
  # Allow to set some information about this distro
  #
  
  distro = None
  release = None
  codename = None
  
  def choose_init():
      """
      Select a init system
  
      Returns the name of a init system (upstart, sysvinit ...).
      """
      return 'systemd'
  
  
  def get_packager(module):
      if module.normalized_release.int_major >= 22:
          return pkg_managers.DNF(module)
      else:
          return pkg_managers.Yum(module)
  
subject: use systemd