Andrei Costescu
2 years ago
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3 changed files with
9 additions and
1 deletions
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docs/dns-stack.md
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roles/kubernetes/preinstall/defaults/main.yml
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roles/kubernetes/preinstall/templates/resolved.conf.j2
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@ -143,6 +143,11 @@ coredns_default_zone_cache_block: | |
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} |
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``` |
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### systemd_resolved_disable_stub_listener |
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Whether or not to set `DNSStubListener=no` when using systemd-resolved. Defaults to `true` on Flatcar. |
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You might need to set it to `true` if CoreDNS fails to start with `address already in use` errors. |
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## DNS modes supported by Kubespray |
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You can modify how Kubespray sets up DNS for your cluster with the variables ``dns_mode`` and ``resolvconf_mode``. |
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@ -140,3 +140,6 @@ redhat_os_family_extensions: |
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# Extending some distributions into the debian os family |
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debian_os_family_extensions: |
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- "UnionTech OS Server 20" |
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# Sets DNSStubListener=no, useful if you get "0.0.0.0:53: bind: address already in use" |
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systemd_resolved_disable_stub_listener: "{{ ansible_os_family in ['Flatcar', 'Flatcar Container Linux by Kinvolk'] }}" |
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@ -14,7 +14,7 @@ Domains={{ searchdomains|default([]) | join(' ') }} |
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#MulticastDNS=no |
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DNSSEC=no |
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Cache=no-negative |
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{% if ansible_os_family in ["Flatcar", "Flatcar Container Linux by Kinvolk"] %} |
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{% if systemd_resolved_disable_stub_listener | bool %} |
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DNSStubListener=no |
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{% else %} |
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#DNSStubListener=yes |
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