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path: root/playbooks/common/openshift-cluster/upgrades/pre/verify_cluster.yml
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---
# Verify a few items before we proceed with upgrade process.

- name: Verify upgrade can proceed on first master
  hosts: oo_first_master
  gather_facts: no
  tasks:

  # Error out in situations where the user has older versions specified in their
  # inventory in any of the openshift_release, openshift_image_tag, and
  # openshift_pkg_version variables. These must be removed or updated to proceed
  # with upgrade.
  # TODO: Should we block if you're *over* the next major release version as well?
  - fail:
      msg: >
        openshift_pkg_version is {{ openshift_pkg_version }} which is not a
        valid version for a {{ openshift_upgrade_target }} upgrade
    when:
    - openshift_pkg_version is defined
    - openshift_pkg_version != ""
    - openshift_pkg_version.split('-',1).1 is version_compare(openshift_upgrade_target ,'<')

  - fail:
      msg: >
        openshift_image_tag is {{ openshift_image_tag }} which is not a
        valid version for a {{ openshift_upgrade_target }} upgrade
    when:
    - openshift_image_tag is defined
    - openshift_image_tag != ""
    - openshift_image_tag.split('v',1).1 is version_compare(openshift_upgrade_target ,'<')

  - set_fact:
      openshift_release: "{{ openshift_release[1:] }}"
    when: openshift_release is defined and openshift_release[0] == 'v'

  - fail:
      msg: >
        openshift_release is {{ openshift_release }} which is not a
        valid release for a {{ openshift_upgrade_target }} upgrade
    when:
    - openshift_release is defined
    - not (openshift_release is version_compare(openshift_upgrade_target ,'='))

- name: Verify master processes
  hosts: oo_masters_to_config
  roles:
  - lib_utils
  - openshift_facts
  tasks:
  - name: Read master storage backend setting
    yedit:
      state: list
      src: /etc/origin/master/master-config.yaml
      key: kubernetesMasterConfig.apiServerArguments.storage-backend
    register: _storage_backend

  - fail:
      msg: "Storage backend in /etc/origin/master/master-config.yaml must be set to 'etcd3' before the upgrade can continue"
    when:
    # assuming the master-config.yml is properly configured, i.e. the value is a list
    - _storage_backend.result | default([], true) | length == 0 or _storage_backend.result[0] != "etcd3"

  - debug:
      msg: "Storage backend is set to etcd3"

  - openshift_facts:
      role: master
      local_facts:
        ha: "{{ groups.oo_masters_to_config | length > 1 }}"

  - when: openshift_is_containerized | bool
    block:
    - set_fact:
        master_services:
        - "{{ openshift_service_type }}-master"

    # In case of the non-ha to ha upgrade.
    - name: Check if the {{ openshift_service_type }}-master-api.service exists
      command: >
        systemctl list-units {{ openshift_service_type }}-master-api.service --no-legend
      register: master_api_service_status

    - set_fact:
        master_services:
        - "{{ openshift_service_type }}-master-api"
        - "{{ openshift_service_type }}-master-controllers"
      when:
      - master_api_service_status.stdout_lines | length > 0
      - (openshift_service_type + '-master-api.service') in master_api_service_status.stdout_lines[0]

    - name: Ensure Master is running
      service:
        name: "{{ item }}"
        state: started
        enabled: yes
      with_items: "{{ master_services }}"