okd/roles/openshift_node/tasks/main.yml

---
# TODO: allow for overriding default ports where possible
- fail:
    msg: "SELinux is disabled, This deployment type requires that SELinux is enabled."
  when: (not ansible_selinux or ansible_selinux.status != 'enabled') and deployment_type in ['enterprise', 'online', 'atomic-enterprise', 'openshift-enterprise']

- name: Set node facts
  openshift_facts:
    role: "{{ item.role }}"
    local_facts: "{{ item.local_facts }}"
  with_items:
  - role: node
    local_facts:
      annotations: "{{ openshift_node_annotations | default(none) }}"
      debug_level: "{{ openshift_node_debug_level | default(openshift.common.debug_level) }}"
      iptables_sync_period: "{{ openshift_node_iptables_sync_period | default(None) }}"
      kubelet_args: "{{ openshift_node_kubelet_args | default(None) }}"
      labels: "{{ lookup('oo_option', 'openshift_node_labels') | default( openshift_node_labels | default(none), true) }}"
      registry_url: "{{ oreg_url | default(none) }}"
      schedulable: "{{ openshift_schedulable | default(openshift_scheduleable) | default(None) }}"
      sdn_mtu: "{{ openshift_node_sdn_mtu | default(None) }}"
      storage_plugin_deps: "{{ osn_storage_plugin_deps | default(None) }}"
      set_node_ip: "{{ openshift_set_node_ip | default(None) }}"
      node_image: "{{ osn_image | default(None) }}"
      ovs_image: "{{ osn_ovs_image | default(None) }}"
      proxy_mode: "{{ openshift_node_proxy_mode | default('iptables') }}"
      local_quota_per_fsgroup: "{{ openshift_node_local_quota_per_fsgroup | default(None) }}"
      dns_ip: "{{ openshift_dns_ip | default(none) | get_dns_ip(hostvars[inventory_hostname])}}"
      env_vars: "{{ openshift_node_env_vars | default(None) }}"

# We have to add tuned-profiles in the same transaction otherwise we run into depsolving
# problems because the rpms don't pin the version properly. This was fixed in 3.1 packaging.
- name: Install Node package
  action: "{{ ansible_pkg_mgr }} name={{ openshift.common.service_type }}-node{{ openshift_pkg_version | default('') | oo_image_tag_to_rpm_version(include_dash=True) }},tuned-profiles-{{ openshift.common.service_type }}-node{{ openshift_pkg_version | default('') | oo_image_tag_to_rpm_version(include_dash=True) }} state=present"
  when: not openshift.common.is_containerized | bool

- name: Set atomic-guest tuned profile
  command: "tuned-adm profile atomic-guest"
  when: openshift.common.is_atomic | bool

- name: Install sdn-ovs package
  action: "{{ ansible_pkg_mgr }} name={{ openshift.common.service_type }}-sdn-ovs{{ openshift_pkg_version | oo_image_tag_to_rpm_version(include_dash=True) }} state=present"
  when: openshift.common.use_openshift_sdn and not openshift.common.is_containerized | bool

- name: Pull node image
  command: >
    docker pull {{ openshift.node.node_image }}:{{ openshift_image_tag }}
  register: pull_result
  changed_when: "'Downloaded newer image' in pull_result.stdout"
  when: openshift.common.is_containerized | bool

- name: Pull OpenVSwitch image
  command: >
    docker pull {{ openshift.node.ovs_image }}:{{ openshift_image_tag }}
  register: pull_result
  changed_when: "'Downloaded newer image' in pull_result.stdout"
  when: openshift.common.is_containerized | bool and openshift.common.use_openshift_sdn | bool

- name: Install the systemd units
  include: systemd_units.yml

# 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
- name: Persist net.ipv4.ip_forward sysctl entry
  sysctl: name="net.ipv4.ip_forward" value=1 sysctl_set=yes state=present reload=yes

- name: Start and enable openvswitch docker service
  service: name=openvswitch.service enabled=yes state=started
  when: openshift.common.is_containerized | bool and openshift.common.use_openshift_sdn | bool
  register: ovs_start_result

- set_fact:
    ovs_service_status_changed: "{{ ovs_start_result | changed }}"

# TODO: add the validate parameter when there is a validation command to run
- name: Create the Node config
  template:
    dest: "{{ openshift_node_config_file }}"
    src: node.yaml.v1.j2
    backup: true
    owner: root
    group: root
    mode: 0600
  notify:
  - restart node

- name: Configure AWS Cloud Provider Settings
  lineinfile:
    dest: /etc/sysconfig/{{ openshift.common.service_type }}-node
    regexp: "{{ item.regex }}"
    line: "{{ item.line }}"
    create: true
  with_items:
    - regex: '^AWS_ACCESS_KEY_ID='
      line: "AWS_ACCESS_KEY_ID={{ openshift_cloudprovider_aws_access_key | default('') }}"
    - regex: '^AWS_SECRET_ACCESS_KEY='
      line: "AWS_SECRET_ACCESS_KEY={{ openshift_cloudprovider_aws_secret_key | default('') }}"
  when: "openshift_cloudprovider_kind is defined and openshift_cloudprovider_kind == 'aws' and openshift_cloudprovider_aws_access_key is defined and openshift_cloudprovider_aws_secret_key is defined"
  notify:
  - restart node

- name: Configure Node Environment Variables
  lineinfile:
    dest: /etc/sysconfig/{{ openshift.common.service_type }}-node
    regexp: "^{{ item.key }}="
    line: "{{ item.key }}={{ item.value }}"
    create: true
  with_dict: "{{ openshift.node.env_vars | default({}) }}"
  notify:
  - restart node

- name: NFS storage plugin configuration
  include: storage_plugins/nfs.yml

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

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

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

# Necessary because when you're on a node that's also a master the master will be
# restarted after the node restarts docker and it will take up to 60 seconds for
# systemd to start the master again
- name: Wait for master API to become available before proceeding
  # Using curl here since the uri module requires python-httplib2 and
  # wait_for port doesn't provide health information.
  command: >
    curl --silent --cacert {{ openshift.common.config_base }}/node/ca.crt
    {{ openshift_node_master_api_url }}/healthz/ready
  args:
    # Disables the following warning:
    # Consider using get_url or uri module rather than running curl
    warn: no
  register: api_available_output
  until: api_available_output.stdout == 'ok'
  retries: 120
  delay: 1
  changed_when: false
  when: openshift.common.is_containerized | bool

- name: Start and enable node dep
  service: name={{ openshift.common.service_type }}-node-dep enabled=yes state=started
  when: openshift.common.is_containerized | bool

- name: Start and enable node
  service: name={{ openshift.common.service_type }}-node enabled=yes state=started
  register: node_start_result
  until: not node_start_result | failed
  retries: 1
  delay: 30

- set_fact:
    node_service_status_changed: "{{ node_start_result | changed }}"