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---
# We need to wait for all expected compute services to register before running
# cells v2 host discovery. This includes virtualised compute services and
# ironic compute services.
# Work with --limit by including only hosts in ansible_play_batch.
- block:
- name: Waiting for nova-compute services to register themselves
become: true
command: >
docker exec kolla_toolbox openstack
--os-interface {{ openstack_interface }}
--os-auth-url {{ openstack_auth.auth_url }}
--os-username {{ openstack_auth.username }}
--os-password {{ openstack_auth.password }}
--os-identity-api-version 3
--os-user-domain-name {{ openstack_auth.user_domain_name }}
--os-system-scope {{ openstack_auth.system_scope }}
--os-region-name {{ openstack_region_name }}
{% if openstack_cacert != '' %}--os-cacert {{ openstack_cacert }}{% endif %}
compute service list --format json --column Host --service nova-compute
register: nova_compute_services
changed_when: false
failed_when: false
retries: 20
delay: 10
until:
- nova_compute_services is success
# A list containing the 'Host' field of compute services that have
# registered themselves. Don't exclude compute services that are disabled
# since these could have been explicitly disabled by the operator. While we
# could exclude services that are down, the nova-manage cell_v2
# discover_hosts does not do this so let's not block on it here.
- (nova_compute_services.stdout |
from_json |
map(attribute='Host') |
list)
is superset(expected_compute_service_hosts)
# Execute on one compute per cell, and delegate to a cell conductor.
when: inventory_hostname == all_computes_in_batch[0]
delegate_to: "{{ groups[nova_cell_conductor_group][0] }}"
# NOTE(mgoddard): Use a separate fail task to ensure we fail only those hosts
# that failed to register.
- name: Fail if nova-compute service failed to register
vars:
# 'Host' field of all registered compute services.
nova_compute_service_hosts: >-
{{ hostvars[all_computes_in_batch[0]].nova_compute_services.stdout |
from_json |
map(attribute='Host') |
list }}
# 'Host' field of failed compute services.
failed_compute_service_hosts: >-
{{ expected_compute_service_hosts | difference(nova_compute_service_hosts) | list }}
# Whether any compute services failed on this host.
any_failed_services: >-
{{ ansible_facts.nodename in failed_compute_service_hosts or
(ansible_facts.hostname ~ "-ironic") in failed_compute_service_hosts }}
fail:
msg: >-
The Nova compute service failed to register itself on the following
hosts: {{ failed_compute_service_hosts | join(',') }}
when: >-
any_failed_services or
(nova_compute_registration_fatal | bool and
failed_compute_service_hosts | length > 0)
vars:
# For virt, use ansible_facts.nodename rather than inventory_hostname, since this
# is similar to what nova uses internally as its default for the
# [DEFAULT] host config option.
virt_compute_service_hosts: >-
{{ virt_computes_in_batch |
map('extract', hostvars, ['ansible_facts', 'nodename']) |
list }}
# For ironic, use {{ansible_facts.hostname}}-ironic since this is what we
# configure for [DEFAULT] host in nova.conf.
ironic_compute_service_hosts: >-
{{ ironic_computes_in_batch |
map('extract', hostvars, ['ansible_facts', 'hostname']) |
map('regex_replace', '^(.*)$', '\1-ironic') |
list }}
expected_compute_service_hosts: "{{ virt_compute_service_hosts + ironic_compute_service_hosts }}"
- name: Include discover_computes.yml
include_tasks: discover_computes.yml
# Execute on one compute host per cell.
when: inventory_hostname == all_computes_in_batch[0]