okd/roles/openshift_node_upgrade/tasks/main.yml

---
# input variables:
# - l_docker_upgrade
# - openshift.common.is_atomic
# - node_config_hook
# - openshift_pkg_version
# - openshift.common.is_containerized
# - deployment_type
# - openshift_release

# tasks file for openshift_node_upgrade

- name: Stop node and openvswitch services
  service:
    name: "{{ item }}"
    state: stopped
  with_items:
  - "{{ openshift.common.service_type }}-node"
  - openvswitch
  failed_when: false

- name: Stop additional containerized services
  service:
    name: "{{ item }}"
    state: stopped
  with_items:
  - "{{ openshift.common.service_type }}-master"
  - "{{ openshift.common.service_type }}-master-controllers"
  - "{{ openshift.common.service_type }}-master-api"
  - etcd_container
  failed_when: false
  when: openshift.common.is_containerized | bool

- include: docker/upgrade.yml
  vars:
    # We will restart Docker ourselves after everything is ready:
    skip_docker_restart: True
  when:
  - l_docker_upgrade is defined
  - l_docker_upgrade | bool

- include: "{{ node_config_hook }}"
  when: node_config_hook is defined

- include: rpm_upgrade.yml
  vars:
    component: "node"
    openshift_version: "{{ openshift_pkg_version | default('') }}"
  when: not openshift.common.is_containerized | bool

- name: Remove obsolete docker-sdn-ovs.conf
  file:
    path: "/etc/systemd/system/docker.service.d/docker-sdn-ovs.conf"
    state: absent
  when: (deployment_type == 'openshift-enterprise' and openshift_release | version_compare('3.4', '>='))
     or (deployment_type == 'origin' and openshift_release | version_compare('1.4', '>='))

- include: containerized_node_upgrade.yml
  when: openshift.common.is_containerized | bool

- name: Ensure containerized services stopped before Docker restart
  service:
    name: "{{ item }}"
    state: stopped
  with_items:
  - etcd_container
  - openvswitch
  - "{{ openshift.common.service_type }}-master"
  - "{{ openshift.common.service_type }}-master-api"
  - "{{ openshift.common.service_type }}-master-controllers"
  - "{{ openshift.common.service_type }}-node"
  failed_when: false
  when: openshift.common.is_containerized | bool

- name: Stop rpm based services
  service:
    name: "{{ item }}"
    state: stopped
  with_items:
  - "{{ openshift.common.service_type }}-node"
  - openvswitch
  failed_when: false
  when: not openshift.common.is_containerized | bool

- name: Upgrade openvswitch
  package:
    name: openvswitch
    state: latest
  when: not openshift.common.is_containerized | bool

- name: Update oreg value
  yedit:
    src: "{{ openshift.common.config_base }}/node/node-config.yaml"
    key: 'imageConfig.format'
    value: "{{ oreg_url }}"
  when: oreg_url is defined

# 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

  # Disable Swap Block
- 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

  when:
  - swap_result.stdout_lines | length > 0
  - openshift_disable_swap | default(true) | bool
  # End Disable Swap Block

# Restart all services
- include: restart.yml

- name: Wait for node to be ready
  oc_obj:
    state: list
    kind: node
    name: "{{ openshift.common.hostname | lower }}"
  register: node_output
  delegate_to: "{{ groups.oo_first_master.0 }}"
  until: node_output.results.results[0].status.conditions | selectattr('type', 'match', '^Ready$') | map(attribute='status') | join | bool == True
  # Give the node two minutes to come back online.
  retries: 24
  delay: 5