adds nodelocaldns_additional_configs to facilitate additional CoreDNS config options (#11657)
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@ -64,6 +64,10 @@ Custom options to be added to the kubernetes coredns plugin.
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Extra domains to be forwarded to the kubernetes coredns plugin.
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### coredns_additional_configs
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Extra configuration to be added to CoreDNS configuration
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### coredns_rewrite_block
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[Rewrite](https://coredns.io/plugins/rewrite/) plugin block to perform internal message rewriting.
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@ -290,6 +294,10 @@ nodelocaldns_external_zones:
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See [dns_etchosts](#dns_etchosts-coredns) above.
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### nodelocaldns_additional_configs
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Extra configuration to be added to CoreDNS configuration
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### Nodelocal DNS HA
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Under some circumstances the single POD nodelocaldns implementation may not be able to be replaced soon enough and a cluster upgrade or a nodelocaldns upgrade can cause DNS requests to time out for short intervals. If for any reason your applications cannot tolerate this behavior you can enable a redundant nodelocal DNS pod on each node:
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@ -55,6 +55,11 @@ nodelocaldns_ds_nodeselector: "kubernetes.io/os: linux"
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nodelocaldns_prometheus_port: 9253
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nodelocaldns_secondary_prometheus_port: 9255
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# nodelocaldns_additional_configs adds any extra configuration to coredns
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# nodelocaldns_additional_configs: |
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# whoami
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# local
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# Limits for dns-autoscaler
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dns_autoscaler_cpu_requests: 20m
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dns_autoscaler_memory_requests: 10Mi
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@ -75,6 +75,9 @@ data:
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prometheus {% if nodelocaldns_bind_metrics_host_ip %}{$MY_HOST_IP}{% endif %}:{{ nodelocaldns_prometheus_port }}
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}
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.:53 {
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{% if nodelocaldns_additional_configs is defined %}
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{{ nodelocaldns_additional_configs | indent(width=8, first=False) }}
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{% endif %}
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errors
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cache 30
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reload
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@ -157,6 +160,9 @@ data:
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prometheus {% if nodelocaldns_bind_metrics_host_ip %}{$MY_HOST_IP}{% endif %}:{{ nodelocaldns_secondary_prometheus_port }}
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}
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.:53 {
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{% if nodelocaldns_additional_configs is defined %}
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{{ nodelocaldns_additional_configs | indent(width=8, first=False) }}
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{% endif %}
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errors
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cache 30
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reload
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