c12s-kubespray/roles/docker/tasks/set_facts_dns.yml
Andrew Greenwood ca9ea097df Cleanup legacy syntax, spacing, files all to yml
Migrate older inline= syntax to pure yml syntax for module args as to be consistant with most of the rest of the tasks
Cleanup some spacing in various files
Rename some files named yaml to yml for consistancy
2017-02-17 16:22:34 -05:00

66 lines
2 KiB
YAML

---
- name: set dns server for docker
set_fact:
docker_dns_servers: |-
{%- if dns_mode == 'kubedns' -%}
{{ [ skydns_server ] }}
{%- elif dns_mode == 'dnsmasq_kubedns' -%}
{{ [ dns_server ] }}
{%- endif -%}
- name: set base docker dns facts
set_fact:
docker_dns_search_domains:
- 'default.svc.{{ dns_domain }}'
- 'svc.{{ dns_domain }}'
docker_dns_options:
- ndots:{{ ndots }}
- timeout:2
- attempts:2
- name: add upstream dns servers (only when dnsmasq is not used)
set_fact:
docker_dns_servers: "{{ docker_dns_servers + upstream_dns_servers|default([]) }}"
when: dns_mode == 'kubedns'
- name: add global searchdomains
set_fact:
docker_dns_search_domains: "{{ docker_dns_search_domains + searchdomains|default([]) }}"
- name: check system nameservers
shell: grep "^nameserver" /etc/resolv.conf | sed 's/^nameserver\s*//'
changed_when: False
register: system_nameservers
check_mode: no
- name: check system search domains
shell: grep "^search" /etc/resolv.conf | sed 's/^search\s*//'
changed_when: False
register: system_search_domains
check_mode: no
- name: add system nameservers to docker options
set_fact:
docker_dns_servers: "{{ docker_dns_servers | union(system_nameservers.stdout_lines) | unique }}"
when: system_nameservers.stdout != ""
- name: add system search domains to docker options
set_fact:
docker_dns_search_domains: "{{ docker_dns_search_domains | union(system_search_domains.stdout.split(' ')|default([])) | unique }}"
when: system_search_domains.stdout != ""
- name: check number of nameservers
fail:
msg: "Too many nameservers"
when: docker_dns_servers|length > 3
- name: check number of search domains
fail:
msg: "Too many search domains"
when: docker_dns_search_domains|length > 6
- name: check length of search domains
fail:
msg: "Search domains exceeded limit of 256 characters"
when: docker_dns_search_domains|join(' ')|length > 256