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---
- name: ensure dnsmasq.d directory exists
file:
path: /etc/dnsmasq.d
state: directory
- name: ensure dnsmasq.d-available directory exists
file:
path: /etc/dnsmasq.d-available
state: directory
- name: Write dnsmasq configuration
template:
src: 01-kube-dns.conf.j2
dest: /etc/dnsmasq.d-available/01-kube-dns.conf
mode: 0755
backup: yes
- name: Stat dnsmasq configuration
stat: path=/etc/dnsmasq.d/01-kube-dns.conf
register: sym
- name: Move previous configuration
command: mv /etc/dnsmasq.d/01-kube-dns.conf /etc/dnsmasq.d-available/01-kube-dns.conf.bak
changed_when: False
when: sym.stat.islnk is defined and sym.stat.islnk == False
- name: Enable dnsmasq configuration
file:
src: /etc/dnsmasq.d-available/01-kube-dns.conf
dest: /etc/dnsmasq.d/01-kube-dns.conf
state: link
- name: Create dnsmasq manifests
template: src={{item.file}} dest=/etc/kubernetes/{{item.file}}
with_items:
- {file: dnsmasq-ds.yml, type: ds}
- {file: dnsmasq-svc.yml, type: svc}
register: manifests
when: inventory_hostname == groups['kube-master'][0]
- name: Start Resources
kube:
name: dnsmasq
namespace: kube-system
kubectl: "{{bin_dir}}/kubectl"
resource: "{{item.item.type}}"
filename: /etc/kubernetes/{{item.item.file}}
state: "{{item.changed | ternary('latest','present') }}"
with_items: "{{ manifests.results }}"
when: inventory_hostname == groups['kube-master'][0]
- name: Check for dnsmasq port (pulling image and running container)
wait_for:
host: "{{dns_server}}"
port: 53
delay: 5
when: inventory_hostname == groups['kube-node'][0]
- name: check resolvconf
shell: which resolvconf
register: resolvconf
ignore_errors: yes
- name: target resolv.conf file
set_fact:
resolvconffile: >-
{%- if resolvconf.rc == 0 -%}/etc/resolvconf/resolv.conf.d/head{%- else -%}/etc/resolv.conf{%- endif -%}
- name: generate search domains to resolvconf
set_fact:
searchentries="{{ ([ 'default.svc.' + dns_domain, 'svc.' + dns_domain ] + searchdomains|default([])) | join(' ') }}"
- name: generate nameservers to resolvconf
set_fact:
nameserverentries="{{ nameservers|default([]) + [ dns_server ] }}"
- name: Add search resolv.conf
lineinfile:
line: "search {{searchentries}}"
dest: "{{resolvconffile}}"
state: present
insertbefore: BOF
backup: yes
follow: yes
- name: Add local dnsmasq to resolv.conf
lineinfile:
line: "nameserver {{item}}"
dest: "{{resolvconffile}}"
state: present
insertafter: "^search.*$"
backup: yes
follow: yes
with_items: "{{nameserverentries}}"
- name: Add options to resolv.conf
lineinfile:
line: options {{ item }}
dest: "{{resolvconffile}}"
state: present
regexp: "^options.*{{ item }}$"
insertafter: EOF
backup: yes
follow: yes
with_items:
- timeout:2
- attempts:2
- 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
- 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"
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