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---
# NOTE(awiddersheim): Gather facts for all hosts as a
# first step since several plays below require them when
# building their configurations.
- name: Gather facts for all hosts
hosts: all
max_fail_percentage: >-
{{ gather_facts_max_fail_percentage |
default(kolla_max_fail_percentage) |
default(100) }}
serial: '{{ kolla_serial|default("0") }}'
gather_facts: false
tasks:
- name: Group hosts to determine when using --limit
group_by:
key: "all_using_limit_{{ (ansible_play_batch | length) != (groups['all'] | length) }}"
changed_when: false
- name: Gather facts
setup:
filter: "{{ kolla_ansible_setup_filter }}"
gather_subset: "{{ kolla_ansible_setup_gather_subset }}"
when:
# Don't gather if fact caching is in use
- not ansible_facts
tags: always
# NOTE(pbourke): This case covers deploying subsets of hosts using --limit. The
# limit arg will cause the first play to gather facts only about that node,
# meaning facts such as IP addresses for rabbitmq nodes etc. will be undefined
# in the case of adding a single compute node.
# NOTE(mgoddard): Divide all hosts to be queried between the hosts selected via
# the limit.
- name: Gather facts for all hosts (if using --limit)
hosts: all_using_limit_True
max_fail_percentage: >-
{{ gather_facts_max_fail_percentage |
default(kolla_max_fail_percentage) |
default(100) }}
serial: '{{ kolla_serial|default("0") }}'
gather_facts: false
vars:
batch_index: "{{ ansible_play_batch.index(inventory_hostname) }}"
batch_size: "{{ ansible_play_batch | length }}"
# Use a python list slice to divide the group up.
# Syntax: [<start index>:<end index>:<step size>]
delegate_hosts: "{{ kolla_ansible_delegate_facts_hosts[batch_index | int::batch_size | int] }}"
tasks:
- name: Gather facts
setup:
filter: "{{ kolla_ansible_setup_filter }}"
gather_subset: "{{ kolla_ansible_setup_gather_subset }}"
delegate_facts: True
delegate_to: "{{ item }}"
with_items: "{{ delegate_hosts }}"
when:
# We gathered facts for all hosts in the batch during the first play.
# Ensure that we don't try again if they failed.
- item not in groups["all_using_limit_True"]
# Don't gather if fact caching is in use
- not hostvars[item].ansible_facts
tags: always
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