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---
- name: Hosts | populate inventory into hosts file
blockinfile:
path: /etc/hosts
block: |-
{% for item in (groups['k8s-cluster'] + groups['etcd'] + groups['calico-rr']|default([]))|unique -%}{{ hostvars[item]['access_ip'] | default(hostvars[item]['ip'] | default(hostvars[item]['ansible_default_ipv4']['address'])) }}{% if (item != hostvars[item]['ansible_hostname']) %} {{ hostvars[item]['ansible_hostname'] }}.{{ dns_domain }} {{ hostvars[item]['ansible_hostname'] }}{% endif %} {{ item }} {{ item }}.{{ dns_domain }}
{% endfor %}
state: present
create: yes
backup: yes
unsafe_writes: yes
marker: "# Ansible inventory hosts {mark}"
when: populate_inventory_to_hosts_file
- name: Hosts | populate kubernetes loadbalancer address into hosts file
lineinfile:
dest: /etc/hosts
regexp: ".*{{ apiserver_loadbalancer_domain_name }}$"
line: "{{ loadbalancer_apiserver.address }} {{ apiserver_loadbalancer_domain_name }}"
state: present
backup: yes
unsafe_writes: yes
when:
- loadbalancer_apiserver is defined
- loadbalancer_apiserver.address is defined
- name: Hosts | Retrieve hosts file content
slurp:
src: /etc/hosts
register: etc_hosts_content
- name: Hosts | Extract existing entries for localhost from hosts file
set_fact:
etc_hosts_localhosts_dict: >-
{%- set splitted = (item | regex_replace('[ \t]+', ' ')|regex_replace('#.*$')|trim).split( ' ') -%}
{{ etc_hosts_localhosts_dict|default({}) | combine({splitted[0]: splitted[1::] }) }}
with_items: "{{ (etc_hosts_content['content'] | b64decode).split('\n') }}"
when:
- etc_hosts_content.content is defined
- (item is match('^::1 .*') or item is match('^127.0.0.1 .*'))
- name: Hosts | Update target hosts file entries dict with required entries
set_fact:
etc_hosts_localhosts_dict_target: >-
{%- set target_entries = (etc_hosts_localhosts_dict|default({})).get(item.key, []) | difference(item.value.get('unexpected' ,[])) -%}
{{ etc_hosts_localhosts_dict_target|default({}) | combine({item.key: (target_entries + item.value.expected)|unique}) }}
with_dict: "{{ etc_hosts_localhost_entries }}"
- name: Hosts | Update (if necessary) hosts file
lineinfile:
dest: /etc/hosts
line: "{{ item.key }} {{ item.value|join(' ') }}"
regexp: "^{{ item.key }}.*$"
state: present
backup: yes
unsafe_writes: yes
with_dict: "{{ etc_hosts_localhosts_dict_target }}"