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Setting up ExternalDNS for Services on Cloudflare
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Setting up External DNS with Contour
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Setting up ExternalDNS for CoreDNS with minikube
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Setting up ExternalDNS for Services on OpenStack Designate
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Setting up ExternalDNS for Services on DigitalOcean
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Setting up ExternalDNS for Services on DNSimple
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Setting up ExternalDNS for Dyn
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Configuring ExternalDNS to use the F5 Networks VirtualServer Source
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Setting up ExternalDNS for Services on Gandi
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Configuring ExternalDNS to use Gateway API Route Sources
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Setting up ExternalDNS on Google Kubernetes Engine
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Configuring ExternalDNS to use the Gloo Proxy Source
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Setting up ExternalDNS for Services on GoDaddy
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Setting up ExternalDNS for Headless Services
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Setting up ExternalDNS for Services on IBMCloud
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Setting up ExternalDNS for Infoblox
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Configuring ExternalDNS to use the Istio Gateway and/or Istio Virtual Service Source
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Configuring ExternalDNS to use the Kong TCPIngress Source
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kOps dns-controller compatibility mode
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Setting up ExternalDNS for Services on Linode
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Creating MX record with CRD source
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Setting up ExternalDNS on GKE with nginx-ingress-controller
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Configuring ExternalDNS to use Cluster Nodes as Source
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Creating NS record with CRD source
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Setting up ExternalDNS for Services on NS1
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Configuring ExternalDNS to use the OpenShift Route Source
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Setting up ExternalDNS for Oracle Cloud Infrastructure (OCI)
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Setting up ExternalDNS for Services on OVH
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Setting up ExternalDNS for PowerDNS
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Setting up ExternalDNS for Pi-hole
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Setting up ExternalDNS for Services on Plural
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Setting up ExternalDNS using the same domain for public and private Route53 zones
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Setting up ExternalDNS for Services on RcodeZero
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Setting up ExternalDNS for RancherDNS(RDNS) with kubernetes
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Configuring RFC2136 provider
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Setting up ExternalDNS for Services on Scaleway
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Running ExternalDNS with limited privileges
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Setting up ExternalDNS for Tencent Cloud
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Configuring ExternalDNS to use the Traefik Proxy Source
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Setting up ExternalDNS for Services on TransIP
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Setting up ExternalDNS for Services on UltraDNS
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Setting up ExternalDNS for VinylDNS
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Setting up ExternalDNS for Services on Vultr
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<h1 id="kops-dns-controller-compatibility-mode">kOps dns-controller compatibility mode<a class="headerlink" href="#kops-dns-controller-compatibility-mode" title="Permanent link">&para;</a></h1>
<p>kOps includes a dns-controller that is primarily used to bootstrap the cluster, but can also be used for provisioning DNS entries for Services and Ingress.</p>
<p>ExternalDNS can be used as a drop-in replacement for dns-controller if you are running a non-gossip cluster. The flag <code>--compatibility kops-dns-controller</code> enables the dns-controller behaviour.</p>
<h2 id="annotations">Annotations<a class="headerlink" href="#annotations" title="Permanent link">&para;</a></h2>
<p>In kops-dns-controller compatibility mode, ExternalDNS supports two additional annotations:</p>
<ul>
<li>
<p><code>dns.alpha.kubernetes.io/external</code> which is used to define a DNS record for accessing the resource publicly (i.e. public IPs)</p>
</li>
<li>
<p><code>dns.alpha.kubernetes.io/internal</code> which is used to define a DNS record for accessing the resource from outside the cluster but inside the cloud,<br />
i.e. it will typically use internal IPs for instances.</p>
</li>
</ul>
<p>These annotations may both be comma-separated lists of names.</p>
<h2 id="dns-record-mappings">DNS record mappings<a class="headerlink" href="#dns-record-mappings" title="Permanent link">&para;</a></h2>
<p>The DNS record mappings try to &ldquo;do the right thing&rdquo;, but what this means is different for each resource type.</p>
<h3 id="pods">Pods<a class="headerlink" href="#pods" title="Permanent link">&para;</a></h3>
<p>For the external annotation, ExternalDNS will map a HostNetwork=true Pod to the external IPs of the Node.</p>
<p>For the internal annotation, ExternalDNS will map a HostNetwork=true Pod to the internal IPs of the Node.</p>
<p>ExternalDNS ignore Pods that are not HostNetwork=true</p>
<p>Annotations added to Pods will always result in an A record being created.</p>
<h3 id="services">Services<a class="headerlink" href="#services" title="Permanent link">&para;</a></h3>
<ul>
<li>
<p>For a Service of Type=LoadBalancer, ExternalDNS looks at Status.LoadBalancer.Ingress. It will create CNAMEs to hostnames,<br />
and A records for IP addresses. It will do this for both internal and external names</p>
</li>
<li>
<p>For a Service of Type=NodePort, ExternalDNS will create A records for the Node&rsquo;s internal/external IP addresses, as appropriate.</p>
</li>
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