tripleo-validations/roles/openshift-on-openstack/tasks/openshift-hw-requirements.yaml

---
# Get auth token and service catalog from Keystone and extract service urls.
- name: Get token and catalog from Keystone
  uri:
    url: "{{ overcloud_keystone_url
              | urlsplit('scheme') }}://{{ overcloud_keystone_url
              | urlsplit('netloc') }}/v3/auth/tokens"
    method: POST
    body_format: json
    body:
      auth:
        scope:
          project:
            name: admin
            domain:
              id: default
        identity:
          methods:
            - password
          password:
            user:
              name: admin
              domain:
                id: default
              password: "{{ overcloud_admin_password }}"
    return_content: yes
    status_code: 201
  register: keystone_result
  when: overcloud_keystone_url|default('')

- name: Set auth token
  set_fact: auth_token="{{ keystone_result.x_subject_token }}"

- name: Get Nova URL from catalog
  set_fact: nova_url="{{ keystone_result.json.token
                          | json_query("catalog[?name=='nova'].endpoints")
                          | first
                          | selectattr('interface', 'equalto', 'public')
                          | map(attribute='url') | first }}"

- name: Get Glance URL from catalog
  set_fact: glance_url="{{ keystone_result.json.token
                          | json_query("catalog[?name=='glance'].endpoints")
                          | first
                          | selectattr('interface', 'equalto', 'public')
                          | map(attribute='url') | first }}"

- name: Get flavors with required values for testing
  uri:
    url: "{{ nova_url }}/flavors/detail?minRam={{ min_node_ram_testing }}&minDisk={{ min_node_disk_testing }}"
    method: GET
    headers:
      X-Auth-Token: "{{ auth_token }}"
      Accept: application/vnd.openstack.compute.v2.1+json
    return_content: yes
    follow_redirects: all
  register: flavors_result_testing

- name: Get flavors with required values for production
  uri:
    url: "{{ nova_url }}/flavors/detail?minRam={{ min_node_ram_prod }}&minDisk={{ min_node_disk_prod }}"
    method: GET
    headers:
      X-Auth-Token: "{{ auth_token }}"
      Accept: application/vnd.openstack.compute.v2.1+json
    return_content: yes
    follow_redirects: all
  register: flavors_result_prod

- name: Set matching_flavors_testing variable
  set_fact:
    matching_flavors_testing: "{{ flavors_result_testing.json.flavors
                                  | list | length > 0 }}"

- name: Set matching_flavors_prod variable
  set_fact:
    matching_flavors_prod: "{{ flavors_result_prod.json.flavors
                                | selectattr('vcpus', 'ge', 4)
                                | list
                                | length > 0 }}"

# Get hypervisor stats from nova and check if there are sufficient
# available resources.
- name: Get hypervisor details from nova
  uri:
    url: "{{ nova_url }}/os-hypervisors/statistics"
    method: GET
    headers:
      X-Auth-Token: "{{ auth_token }}"
      Accept: application/vnd.openstack.compute.v2.1+json
    return_content: yes
    follow_redirects: all
  register: hypervisors_result

- name: Set hypervisor stats
  set_fact: hv_stats="{{ hypervisors_result.json.hypervisor_statistics }}"

- name: Set flag whether min resources for testing are available
  set_fact: resource_reqs_testing=True
  when: hv_stats.disk_available_least >= min_total_disk_testing
        and hv_stats.free_ram_mb >= min_total_ram_testing
        and hv_stats.vcpus - hv_stats.vcpus_used >= min_total_vcpus_testing

- name: Set flag whether min resources for production are available
  set_fact: resource_reqs_prod=True
  when: hv_stats.disk_available_least >= min_total_disk_prod
        and hv_stats.free_ram_mb >= min_total_ram_prod
        and hv_stats.vcpus - hv_stats.vcpus_used >= min_total_vcpus_prod

# Get overcloud images from Glance and check if there is one named either
# rhel or centos.
- name: Get images from glance
  uri:
    url: "{{ glance_url }}/v2/images"
    method: GET
    headers:
      X-Auth-Token: "{{ auth_token }}"
    return_content: yes
    follow_redirects: all
  register: images

- name: Find matching images
  set_fact:
    matching_image: "{{ images.json.images
                        | map(attribute='name')
                        | map('lower')
                        | select('search', '(centos|rhel)')
                        | list | length | int > 0 }}"

- name: Create warning message
  set_fact:
    warning_msg: |
      {{ lookup('template', './templates/openshift-hw-requirements-warnings.j2') }}      

- name: Fail if minimum requirements are not met
  fail:
    msg: "{{ warning_msg }}"
  when: not matching_flavors_testing
        or not matching_image
        or not resource_reqs_testing

- name: Warn if production requirements are not met
  warn:
    msg: "{{ warning_msg }}"
  when: not matching_flavors_prod
        or not matching_image
        or not resource_reqs_prod