8679f10f71
* For Debian/RedHat OS families (with NetworkManager/dhclient/resolvconf optionally enabled) prepend /etc/resolv.conf with required nameservers, options, and supersede domain and search domains via the dhclient/resolvconf hooks. * Drop (z)nodnsupdate dhclient hook and re-implement it to complement the resolvconf -u command, which is distro/cloud provider specific. Update docs as well. * Enable network restart to apply and persist changes and simplify handlers to rely on network restart only. This fixes DNS resolve for hostnet K8s pods for Red Hat OS family. Skip network restart for canal/calico plugins, unless https://github.com/projectcalico/felix/issues/1185 fixed. * Replace linefiles line plus with_items to block mode as it's faster. Signed-off-by: Bogdan Dobrelya <bdobrelia@mirantis.com> Co-authored-by: Matthew Mosesohn <mmosesohn@mirantis.com>
64 lines
1.7 KiB
YAML
64 lines
1.7 KiB
YAML
---
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- name: create temporary resolveconf cloud init file
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command: cp -f /etc/resolv.conf "{{ resolvconffile }}"
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when: ansible_os_family == "CoreOS"
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- name: Remove search/domain/nameserver options
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lineinfile:
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dest: "{{item[0]}}"
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state: absent
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regexp: "^{{ item[1] }}.*$"
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backup: yes
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follow: yes
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with_nested:
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- "{{ [resolvconffile] + [base|default('')] + [head|default('')] }}"
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- [ 'search ', 'nameserver ', 'domain ', 'options ' ]
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notify: Preinstall | restart network
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- name: Add domain/search/nameservers to resolv.conf
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blockinfile:
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dest: "{{resolvconffile}}"
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block: |-
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{% for item in [domainentry] + [searchentries] + nameserverentries.split(',') -%}
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{{ item }}
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{% endfor %}
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state: present
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insertbefore: BOF
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create: yes
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backup: yes
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follow: yes
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marker: "# Ansible entries {mark}"
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notify: Preinstall | restart network
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- name: Add options to resolv.conf
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lineinfile:
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line: options {{ item }}
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dest: "{{resolvconffile}}"
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state: present
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regexp: "^options.*{{ item }}$"
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insertafter: EOF
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backup: yes
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follow: yes
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with_items:
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- ndots:{{ ndots }}
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- timeout:2
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- attempts:2
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notify: Preinstall | restart network
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- name: get temporary resolveconf cloud init file content
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command: cat {{ resolvconffile }}
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register: cloud_config
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when: ansible_os_family == "CoreOS"
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- name: persist resolvconf cloud init file
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template:
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dest: "{{resolveconf_cloud_init_conf}}"
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src: resolvconf.j2
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owner: root
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mode: 0644
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notify: Preinstall | update resolvconf for CoreOS
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when: ansible_os_family == "CoreOS"
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- include: dhclient-hooks.yml
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when: ansible_os_family != "CoreOS"
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tags: [bootstrap-os, resolvconf]
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