add k8s_external plugin to CoreDNS configuration (#4704)
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d9dedc2cd5
commit
99c5f7e013
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@ -61,6 +61,10 @@ following default cluster parameters:
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bits in kube_pods_subnet dictates how many kube-nodes can be in cluster.
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* *skydns_server* - Cluster IP for DNS (default is 10.233.0.3)
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* *skydns_server_secondary* - Secondary Cluster IP for CoreDNS used with coredns_dual deployment (default is 10.233.0.4)
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* *enable_coredns_k8s_external* - If enabled, it configures the [k8s_external plugin](https://coredns.io/plugins/k8s_external/)
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on the CoreDNS service.
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* *coredns_k8s_external_zone* - Zone that will be used when CoreDNS k8s_external plugin is enabled
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(default is k8s_external.local)
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* *cloud_provider* - Enable extra Kubelet option if operating inside GCE or
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OpenStack (default is unset)
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* *kube_hostpath_dynamic_provisioner* - Required for use of PetSets type in
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@ -135,6 +135,9 @@ dns_mode: coredns
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enable_nodelocaldns: true
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nodelocaldns_ip: 169.254.25.10
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nodelocaldns_health_port: 9254
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# Enable k8s_external plugin for CoreDNS
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enable_coredns_k8s_external: false
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coredns_k8s_external_zone: k8s_external.local
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# Can be docker_dns, host_resolvconf or none
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resolvconf_mode: docker_dns
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@ -30,6 +30,9 @@ data:
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forward . /etc/resolv.conf {
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prefer_udp
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}
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{% endif %}
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{% if enable_coredns_k8s_external %}
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k8s_external {{ coredns_k8s_external_zone }}
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{% endif %}
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cache 30
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loop
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@ -89,6 +89,8 @@ kube_dns_servers:
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dns_servers: "{{kube_dns_servers[dns_mode]}}"
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enable_coredns_k8s_external: false
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coredns_k8s_external_zone: k8s_external.local
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# Kubernetes configuration dirs and system namespace.
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# Those are where all the additional config stuff goes
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