c12s-kubespray/roles/kubernetes/preinstall/tasks/0040-set_facts.yml
Matthew Mosesohn 5f12b7aedf Remove kubedns and dnsmasq. Move dns_late phase after apps (#4406)
Both kubedns and dnsmasq modes are long not maintained.
We should run dns_late steps at the end because sshd
makes DNS lookups during Ansible run and has 2s timeouts
for each failed lookup trying to connect to coredns before
it is ready.
2019-04-01 12:32:34 -07:00

167 lines
5.3 KiB
YAML

---
- set_fact:
architecture_groups:
x86_64: amd64
aarch64: arm64
- name: ansible_architecture_rename
set_fact:
host_architecture: >-
{%- if ansible_architecture in architecture_groups -%}
{{architecture_groups[ansible_architecture]}}
{%- else -%}
{{ansible_architecture}}
{% endif %}
- name: Force binaries directory for Container Linux by CoreOS
set_fact:
bin_dir: "/opt/bin"
when: ansible_os_family in ["CoreOS", "Container Linux by CoreOS"]
tags:
- facts
- name: check if atomic host
stat:
path: /run/ostree-booted
register: ostree
- set_fact:
is_atomic: "{{ ostree.stat.exists }}"
- set_fact:
kube_cert_group: "kube"
when: is_atomic
- name: check resolvconf
shell: which resolvconf
register: resolvconf
failed_when: false
changed_when: false
check_mode: no
- set_fact:
resolvconf: >-
{%- if resolvconf.rc == 0 -%}true{%- else -%}false{%- endif -%}
- set_fact:
bogus_domains: |-
{% for d in [ 'default.svc.' + dns_domain, 'svc.' + dns_domain ] + searchdomains|default([]) -%}
{{dns_domain}}.{{d}}./{{d}}.{{d}}./com.{{d}}./
{%- endfor %}
cloud_resolver: >-
{%- if cloud_provider is defined and cloud_provider == 'gce' -%}
['169.254.169.254']
{%- elif cloud_provider is defined and cloud_provider == 'aws' -%}
['169.254.169.253']
{%- else -%}
[]
{%- endif -%}
- name: check if kubelet is configured
stat:
path: "{{ kube_config_dir }}/kubelet.env"
register: kubelet_configured
changed_when: false
- name: check if early DNS configuration stage
set_fact:
dns_early: >-
{%- if kubelet_configured.stat.exists -%}false{%- else -%}true{%- endif -%}
- name: target resolv.conf files
set_fact:
resolvconffile: /etc/resolv.conf
base: >-
{%- if resolvconf|bool -%}/etc/resolvconf/resolv.conf.d/base{%- endif -%}
head: >-
{%- if resolvconf|bool -%}/etc/resolvconf/resolv.conf.d/head{%- endif -%}
when: not ansible_os_family in ["CoreOS", "Container Linux by CoreOS"]
- name: target temporary resolvconf cloud init file (Container Linux by CoreOS)
set_fact:
resolvconffile: /tmp/resolveconf_cloud_init_conf
when: ansible_os_family in ["CoreOS", "Container Linux by CoreOS"]
- name: check if /etc/dhclient.conf exists
stat:
path: /etc/dhclient.conf
register: dhclient_stat
- name: target dhclient conf file for /etc/dhclient.conf
set_fact:
dhclientconffile: /etc/dhclient.conf
when: dhclient_stat.stat.exists
- name: check if /etc/dhcp/dhclient.conf exists
stat:
path: /etc/dhcp/dhclient.conf
register: dhcp_dhclient_stat
- name: target dhclient conf file for /etc/dhcp/dhclient.conf
set_fact:
dhclientconffile: /etc/dhcp/dhclient.conf
when: dhcp_dhclient_stat.stat.exists
- name: target dhclient hook file for Red Hat family
set_fact:
dhclienthookfile: /etc/dhcp/dhclient.d/zdnsupdate.sh
when: ansible_os_family == "RedHat"
- name: target dhclient hook file for Debian family
set_fact:
dhclienthookfile: /etc/dhcp/dhclient-exit-hooks.d/zdnsupdate
when: ansible_os_family == "Debian"
- name: generate search domains to resolvconf
set_fact:
searchentries:
search {{ ([ 'default.svc.' + dns_domain, 'svc.' + dns_domain ] + searchdomains|default([])) | join(' ') }}
domainentry:
domain {{ dns_domain }}
supersede_search:
supersede domain-search "{{ ([ 'default.svc.' + dns_domain, 'svc.' + dns_domain ] + searchdomains|default([])) | join('", "') }}";
supersede_domain:
supersede domain-name "{{ dns_domain }}";
- name: pick coredns cluster IP or default resolver
set_fact:
coredns_server: |-
{%- if dns_mode == 'coredns' and not dns_early|bool -%}
{{ [ skydns_server ] + upstream_dns_servers|default([]) }}
{%- elif dns_mode == 'coredns_dual' and not dns_early|bool -%}
{{ [ skydns_server ] + [ skydns_server_secondary ] + upstream_dns_servers|default([]) }}
{%- elif dns_mode == 'manual' and not dns_early|bool -%}
{{ ( manual_dns_server.split(',') | list) + upstream_dns_servers|default([]) }}
{%- elif dns_early|bool -%}
{{ upstream_dns_servers|default([]) }}
{%- endif -%}
- name: generate nameservers to resolvconf
set_fact:
nameserverentries:
nameserver {{( coredns_server + nameservers|d([]) + cloud_resolver|d([])) | join(',nameserver ')}}
supersede_nameserver:
supersede domain-name-servers {{( coredns_server + nameservers|d([]) + cloud_resolver|d([])) | join(', ') }};
- name: gather os specific variables
include_vars: "{{ item }}"
with_first_found:
- files:
- "{{ ansible_distribution|lower }}-{{ ansible_distribution_version|lower|replace('/', '_') }}.yml"
- "{{ ansible_distribution|lower }}-{{ ansible_distribution_release }}.yml"
- "{{ ansible_distribution|lower }}-{{ ansible_distribution_major_version|lower|replace('/', '_') }}.yml"
- "{{ ansible_distribution|lower }}.yml"
- "{{ ansible_os_family|lower }}.yml"
- defaults.yml
paths:
- ../vars
skip: true
- name: override kube_proxy_mode to ipvs if kube_proxy_remove is set, as ipvs won't require kube-proxy cleanup when kube-proxy daemonset gets deleted
set_fact:
kube_proxy_mode: 'ipvs'
when:
- kube_proxy_remove
tags:
- facts
- kube-proxy