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---
- name: check resolvconf
shell: which resolvconf
register: resolvconf
ignore_errors: yes
changed_when: false
- name: target resolv.conf file
set_fact:
resolvconffile: >-
{%- if resolvconf.rc == 0 -%}/etc/resolvconf/resolv.conf.d/head{%- else -%}/etc/resolv.conf{%- endif -%}
when: ansible_os_family != "CoreOS"
- name: target temporary resolvconf cloud init file
set_fact:
resolvconffile: /tmp/resolveconf_cloud_init_conf
when: ansible_os_family == "CoreOS"
- name: create temporary resolveconf cloud init file
command: cp -f /etc/resolv.conf "{{ resolvconffile }}"
when: ansible_os_family == "CoreOS"
- name: generate search domains to resolvconf
set_fact:
searchentries:
"{{ ([ 'default.svc.' + dns_domain, 'svc.' + dns_domain ] + searchdomains|default([])) | join(' ') }}"
- name: pick dnsmasq cluster IP
set_fact:
dnsmasq_server: >-
{%- if skip_dnsmasq|bool -%}{{ [ skydns_server ] + upstream_dns_servers|default([]) }}{%- else -%}{{ [ dns_server ] }}{%- endif -%}
- name: generate nameservers to resolvconf
set_fact:
nameserverentries:
"{{ dnsmasq_server|default([]) + nameservers|default([]) }}"
- name: Remove search and nameserver options from resolvconf head
lineinfile:
dest: /etc/resolvconf/resolv.conf.d/head
state: absent
regexp: "^{{ item }}.*$"
backup: yes
follow: yes
with_items:
- search
- nameserver
when: resolvconf.rc == 0
notify: Dnsmasq | update resolvconf
- name: Remove search and nameserver options from resolvconf cloud init temporary file
lineinfile:
dest: "{{resolvconffile}}"
state: absent
regexp: "^{{ item }}.*$"
backup: yes
follow: yes
with_items:
- search
- nameserver
when: ansible_os_family == "CoreOS"
notify: Dnsmasq | update resolvconf for CoreOS
- name: Add search domains to resolvconf file
lineinfile:
line: "search {{searchentries}}"
dest: "{{resolvconffile}}"
state: present
insertbefore: BOF
backup: yes
follow: yes
notify: Dnsmasq | update resolvconf
- name: Add nameservers to resolv.conf
blockinfile:
dest: "{{resolvconffile}}"
block: |-
{% for item in nameserverentries -%}
nameserver {{ item }}
{% endfor %}
state: present
insertafter: "^search default.svc.*$"
create: yes
backup: yes
follow: yes
marker: "# Ansible nameservers {mark}"
notify: Dnsmasq | update resolvconf
- name: Add options to resolv.conf
lineinfile:
line: options {{ item }}
dest: "{{resolvconffile}}"
state: present
regexp: "^options.*{{ item }}$"
insertafter: EOF
backup: yes
follow: yes
with_items:
- ndots:{{ ndots }}
- timeout:2
- attempts:2
notify: Dnsmasq | update resolvconf
- name: Remove search and nameserver options from resolvconf base
lineinfile:
dest: /etc/resolvconf/resolv.conf.d/base
state: absent
regexp: "^{{ item }}.*$"
backup: yes
follow: yes
with_items:
- search
- nameserver
when: resolvconf.rc == 0
notify: Dnsmasq | update resolvconf
- name: disable resolv.conf modification by dhclient
copy: src=dhclient_nodnsupdate dest=/etc/dhcp/dhclient-enter-hooks.d/znodnsupdate mode=0755
notify: Dnsmasq | restart network
when: ansible_os_family == "Debian"
- name: disable resolv.conf modification by dhclient
copy: src=dhclient_nodnsupdate dest=/etc/dhcp/dhclient.d/nodnsupdate mode=u+x
notify: Dnsmasq | restart network
when: ansible_os_family == "RedHat"
- name: get temporary resolveconf cloud init file content
command: cat {{ resolvconffile }}
register: cloud_config
when: ansible_os_family == "CoreOS"
- name: persist resolvconf cloud init file
template:
dest: "{{resolveconf_cloud_init_conf}}"
src: resolvconf.j2
owner: root
mode: 0644
notify: Dnsmasq | update resolvconf for CoreOS
when: ansible_os_family == "CoreOS"
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