c12s-kubespray/roles/dnsmasq/tasks/main.yml

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---
- name: ensure dnsmasq.d directory exists
file:
path: /etc/dnsmasq.d
state: directory
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- name: ensure dnsmasq.d-available directory exists
file:
path: /etc/dnsmasq.d-available
state: directory
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- name: Write dnsmasq configuration
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template:
src: 01-kube-dns.conf.j2
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dest: /etc/dnsmasq.d-available/01-kube-dns.conf
mode: 0755
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backup: yes
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- 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
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- 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
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when: inventory_hostname == groups['kube-master'][0]
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- name: Start Resources
kube:
name: dnsmasq
namespace: kube-system
kubectl: /usr/local/bin/kubectl
resource: "{{item.item.type}}"
filename: /etc/kubernetes/{{item.item.file}}
state: "{{item.changed | ternary('latest','present') }}"
with_items: "{{ manifests.results }}"
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when: inventory_hostname == groups['kube-master'][0]
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- name: Check for dnsmasq port (pulling image and running container)
wait_for:
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host: "{{dns_server}}"
port: 53
delay: 5
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when: inventory_hostname == groups['kube-master'][0]
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- name: check resolvconf
stat: path=/etc/resolvconf/resolv.conf.d/head
register: resolvconf
- name: target resolv.conf file
set_fact:
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resolvconffile: >-
{%- if resolvconf.stat.exists == True -%}/etc/resolvconf/resolv.conf.d/head{%- else -%}/etc/resolv.conf{%- endif -%}
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- name: Add search resolv.conf
lineinfile:
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line: "search {{ [ 'default.svc.' + dns_domain, 'svc.' + dns_domain, dns_domain ] | join(' ') }}"
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dest: "{{resolvconffile}}"
state: present
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insertbefore: BOF
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backup: yes
follow: yes
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- name: Add local dnsmasq to resolv.conf
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lineinfile:
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line: "nameserver {{dns_server}}"
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dest: "{{resolvconffile}}"
state: present
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insertafter: "^search.*$"
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backup: yes
follow: yes
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- name: Add options to resolv.conf
lineinfile:
line: options {{ item }}
dest: "{{resolvconffile}}"
state: present
regexp: "^options.*{{ item }}$"
insertafter: EOF
backup: yes
follow: yes
with_items:
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- timeout:2
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- attempts:2
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- name: disable resolv.conf modification by dhclient
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copy: src=dhclient_nodnsupdate dest=/etc/dhcp/dhclient-enter-hooks.d/nodnsupdate mode=0755 backup=yes
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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 backup=yes
when: ansible_os_family == "RedHat"
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- name: update resolvconf
command: resolvconf -u
changed_when: False
when: resolvconf.stat.exists == True
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- meta: flush_handlers