okd/roles/openshift_node40/tasks/config.yml

---

- name: get worker ignition file
  command: >
    curl -k {{ openshift_bootstrap_endpoint }}
  register: l_worker_bootstrap

- debug:
    var: l_worker_bootstrap.stdout

- name: parse ignition file
  parse_ignition:
    ign_file_contents: "{{ l_worker_bootstrap.stdout }}"
  register: l_parse_ignition_res

- name: Create all the directories we will need
  command: "mkdir -p {{ item }}"
  with_items: "{{ l_parse_ignition_res.dir_list }}"

- name: create files from ignition contents
  copy:
    content: "{{ item.value.contents }}"
    dest: "{{ item.key }}"
    mode: "{{ l_file_mode }}"
  with_dict: "{{ l_parse_ignition_res.files_dict }}"
  vars:
    l_mode_prepend: "{{ '0' if (item.value.mode | length < 4) else '' }}"
    l_file_mode: "{{ l_mode_prepend ~ item.value.mode }}"

#### Disable SWAP #####
# https://docs.openshift.com/container-platform/3.4/admin_guide/overcommit.html#disabling-swap-memory
# swapoff is a custom module in lib_utils that comments out swap entries in
# /etc/fstab and runs swapoff -a, if necessary.
- name: Disable swap
  swapoff: {}
  when: openshift_disable_swap | default(true) | bool

# The atomic-openshift-node service will set this parameter on
# startup, but if the network service is restarted this setting is
# lost. Reference: https://bugzilla.redhat.com/show_bug.cgi?id=1372388
- sysctl:
    name: net.ipv4.ip_forward
    value: 1
    sysctl_file: "/etc/sysctl.d/99-openshift.conf"
    reload: yes

- name: Setting sebool container_manage_cgroup
  seboolean:
    name: container_manage_cgroup
    state: yes
    persistent: yes