okd/roles/openshift_node/tasks/main.yml

---
- fail:
    msg: "SELinux is disabled, This deployment type requires that SELinux is enabled."
  when:
    - (not ansible_selinux or ansible_selinux.status != 'enabled')
    - deployment_type == 'openshift-enterprise'
    - not openshift_use_crio | default(false)

- name: setup firewall
  import_tasks: firewall.yml

#### Disable SWAP #####
# https://docs.openshift.com/container-platform/3.4/admin_guide/overcommit.html#disabling-swap-memory
- name: Check for swap usage
  command: grep "^[^#].*swap" /etc/fstab
  # grep: match any lines which don't begin with '#' and contain 'swap'
  changed_when: false
  failed_when: false
  register: swap_result

- when:
    - swap_result.stdout_lines | length > 0
    - openshift_disable_swap | default(true) | bool
  block:
    - name: Disable swap
      command: swapoff --all

    - name: Remove swap entries from /etc/fstab
      replace:
        dest: /etc/fstab
        regexp: '(^[^#].*swap.*)'
        replace: '# \1'
        backup: yes

    - name: Add notice about disabling swap
      lineinfile:
        dest: /etc/fstab
        line: '# OpenShift-Ansible Installer disabled swap per overcommit guidelines'
        state: present
#### End Disable Swap Block ####

- name: include node installer
  include_tasks: install.yml

- name: Restart cri-o
  systemd:
    name: cri-o
    enabled: yes
    state: restarted
  when: openshift_use_crio | default(false)

- name: restart NetworkManager to ensure resolv.conf is present
  systemd:
    name: NetworkManager
    enabled: yes
    state: restarted
  when: openshift_node_bootstrap | 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

- include_tasks: registry_auth.yml

- name: include standard node config
  include_tasks: config.yml

#### Storage class plugins here ####
- name: NFS storage plugin configuration
  include_tasks: storage_plugins/nfs.yml
  tags:
    - nfs

- name: GlusterFS storage plugin configuration
  include_tasks: storage_plugins/glusterfs.yml
  when: "'glusterfs' in openshift.node.storage_plugin_deps"

- name: Ceph storage plugin configuration
  include_tasks: storage_plugins/ceph.yml
  when: "'ceph' in openshift.node.storage_plugin_deps"

- name: iSCSI storage plugin configuration
  include_tasks: storage_plugins/iscsi.yml
  when: "'iscsi' in openshift.node.storage_plugin_deps"

##### END Storage #####

- include_tasks: config/workaround-bz1331590-ovs-oom-fix.yml
  when: openshift_node_use_openshift_sdn | default(true) | bool

- name: include bootstrap node config
  include_tasks: bootstrap.yml
  when: openshift_node_bootstrap