---
- name: disable OSD directory parsing by updatedb
  command: updatedb -e /var/lib/ceph
  ignore_errors: true
  changed_when: False

- name: disable transparent hugepage
  command: "echo never > /sys/kernel/mm/transparent_hugepage/enabled"
  when: disable_transparent_hugepage
  ignore_errors: true
  changed_when: False

- name: disable swap
  command: swapoff -a
  when: disable_swap
  ignore_errors: true
  changed_when: False

- name: apply OS tuning
  sysctl: >
    name={{ item.name }}
    value={{ item.value }}
    state=present
    sysctl_file=/etc/sysctl.conf
    ignoreerrors=yes
  with_items: os_tuning_params