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<article class="md-content__inner md-typeset">
<h1 id="ovhcloud">OVHcloud<a class="headerlink" href="#ovhcloud" title="Permanent link">&para;</a></h1>
<p>This tutorial describes how to setup ExternalDNS for use within a<br />
Kubernetes cluster using OVHcloud DNS.</p>
<p>Make sure to use <strong>&gt;=0.6</strong> version of ExternalDNS for this tutorial.</p>
<h2 id="creating-a-zone-with-ovhcloud-dns">Creating a zone with OVHcloud DNS<a class="headerlink" href="#creating-a-zone-with-ovhcloud-dns" title="Permanent link">&para;</a></h2>
<p>If you are new to OVHcloud, we recommend you first read the following<br />
instructions for creating a zone.</p>
<p><a href="https://help.ovhcloud.com/csm/en-gb-dns-create-dns-zone?id=kb_article_view&amp;sysparm_article=KB0051667/">Creating a zone using the OVHcloud Manager</a></p>
<p><a href="https://api.ovh.com/console/">Creating a zone using the OVHcloud API</a></p>
<h2 id="creating-ovhcloud-credentials">Creating OVHcloud Credentials<a class="headerlink" href="#creating-ovhcloud-credentials" title="Permanent link">&para;</a></h2>
<p>You first need to create an OVHcloud application: follow the<br />
<a href="https://help.ovhcloud.com/csm/en-gb-api-getting-started-ovhcloud-api?id=kb_article_view&amp;sysparm_article=KB0042784#advanced-usage-pair-ovhcloud-apis-with-an-application">OVHcloud documentation</a><br />
you will have your <code>Application key</code> and <code>Application secret</code></p>
<p>And you will need to generate your consumer key, here the permissions needed :</p>
<ul>
<li>GET on <code>/domain/zone</code></li>
<li>GET on <code>/domain/zone/*/record</code></li>
<li>GET on <code>/domain/zone/*/record/*</code></li>
<li>PUT on <code>/domain/zone/*/record/*</code></li>
<li>POST on <code>/domain/zone/*/record</code></li>
<li>DELETE on <code>/domain/zone/*/record/*</code></li>
<li>GET on <code>/domain/zone/*/soa</code></li>
<li>POST on <code>/domain/zone/*/refresh</code></li>
</ul>
<p>You can use the following <code>curl</code> request to generate &amp; validated your <code>Consumer key</code></p>
<div class="highlight"><pre><span></span><code><a id="__codelineno-0-1" name="__codelineno-0-1" href="#__codelineno-0-1"></a>curl<span class="w"> </span>-XPOST<span class="w"> </span>-H<span class="w"> </span><span class="s2">&quot;X-Ovh-Application: &lt;ApplicationKey&gt;&quot;</span><span class="w"> </span>-H<span class="w"> </span><span class="s2">&quot;Content-type: application/json&quot;</span><span class="w"> </span>https://eu.api.ovh.com/1.0/auth/credential<span class="w"> </span>-d<span class="w"> </span><span class="s1">&#39;{</span>
<a id="__codelineno-0-2" name="__codelineno-0-2" href="#__codelineno-0-2"></a><span class="s1"> &quot;accessRules&quot;: [</span>
<a id="__codelineno-0-3" name="__codelineno-0-3" href="#__codelineno-0-3"></a><span class="s1"> {</span>
<a id="__codelineno-0-4" name="__codelineno-0-4" href="#__codelineno-0-4"></a><span class="s1"> &quot;method&quot;: &quot;GET&quot;,</span>
<a id="__codelineno-0-5" name="__codelineno-0-5" href="#__codelineno-0-5"></a><span class="s1"> &quot;path&quot;: &quot;/domain/zone&quot;</span>
<a id="__codelineno-0-6" name="__codelineno-0-6" href="#__codelineno-0-6"></a><span class="s1"> },</span>
<a id="__codelineno-0-7" name="__codelineno-0-7" href="#__codelineno-0-7"></a><span class="s1"> {</span>
<a id="__codelineno-0-8" name="__codelineno-0-8" href="#__codelineno-0-8"></a><span class="s1"> &quot;method&quot;: &quot;GET&quot;,</span>
<a id="__codelineno-0-9" name="__codelineno-0-9" href="#__codelineno-0-9"></a><span class="s1"> &quot;path&quot;: &quot;/domain/zone/*/soa&quot;</span>
<a id="__codelineno-0-10" name="__codelineno-0-10" href="#__codelineno-0-10"></a><span class="s1"> },</span>
<a id="__codelineno-0-11" name="__codelineno-0-11" href="#__codelineno-0-11"></a><span class="s1"> {</span>
<a id="__codelineno-0-12" name="__codelineno-0-12" href="#__codelineno-0-12"></a><span class="s1"> &quot;method&quot;: &quot;GET&quot;,</span>
<a id="__codelineno-0-13" name="__codelineno-0-13" href="#__codelineno-0-13"></a><span class="s1"> &quot;path&quot;: &quot;/domain/zone/*/record&quot;</span>
<a id="__codelineno-0-14" name="__codelineno-0-14" href="#__codelineno-0-14"></a><span class="s1"> },</span>
<a id="__codelineno-0-15" name="__codelineno-0-15" href="#__codelineno-0-15"></a><span class="s1"> {</span>
<a id="__codelineno-0-16" name="__codelineno-0-16" href="#__codelineno-0-16"></a><span class="s1"> &quot;method&quot;: &quot;GET&quot;,</span>
<a id="__codelineno-0-17" name="__codelineno-0-17" href="#__codelineno-0-17"></a><span class="s1"> &quot;path&quot;: &quot;/domain/zone/*/record/*&quot;</span>
<a id="__codelineno-0-18" name="__codelineno-0-18" href="#__codelineno-0-18"></a><span class="s1"> },</span>
<a id="__codelineno-0-19" name="__codelineno-0-19" href="#__codelineno-0-19"></a><span class="s1"> {</span>
<a id="__codelineno-0-20" name="__codelineno-0-20" href="#__codelineno-0-20"></a><span class="s1"> &quot;method&quot;: &quot;PUT&quot;,</span>
<a id="__codelineno-0-21" name="__codelineno-0-21" href="#__codelineno-0-21"></a><span class="s1"> &quot;path&quot;: &quot;/domain/zone/*/record/*&quot;</span>
<a id="__codelineno-0-22" name="__codelineno-0-22" href="#__codelineno-0-22"></a><span class="s1"> },</span>
<a id="__codelineno-0-23" name="__codelineno-0-23" href="#__codelineno-0-23"></a><span class="s1"> {</span>
<a id="__codelineno-0-24" name="__codelineno-0-24" href="#__codelineno-0-24"></a><span class="s1"> &quot;method&quot;: &quot;POST&quot;,</span>
<a id="__codelineno-0-25" name="__codelineno-0-25" href="#__codelineno-0-25"></a><span class="s1"> &quot;path&quot;: &quot;/domain/zone/*/record&quot;</span>
<a id="__codelineno-0-26" name="__codelineno-0-26" href="#__codelineno-0-26"></a><span class="s1"> },</span>
<a id="__codelineno-0-27" name="__codelineno-0-27" href="#__codelineno-0-27"></a><span class="s1"> {</span>
<a id="__codelineno-0-28" name="__codelineno-0-28" href="#__codelineno-0-28"></a><span class="s1"> &quot;method&quot;: &quot;DELETE&quot;,</span>
<a id="__codelineno-0-29" name="__codelineno-0-29" href="#__codelineno-0-29"></a><span class="s1"> &quot;path&quot;: &quot;/domain/zone/*/record/*&quot;</span>
<a id="__codelineno-0-30" name="__codelineno-0-30" href="#__codelineno-0-30"></a><span class="s1"> },</span>
<a id="__codelineno-0-31" name="__codelineno-0-31" href="#__codelineno-0-31"></a><span class="s1"> {</span>
<a id="__codelineno-0-32" name="__codelineno-0-32" href="#__codelineno-0-32"></a><span class="s1"> &quot;method&quot;: &quot;POST&quot;,</span>
<a id="__codelineno-0-33" name="__codelineno-0-33" href="#__codelineno-0-33"></a><span class="s1"> &quot;path&quot;: &quot;/domain/zone/*/refresh&quot;</span>
<a id="__codelineno-0-34" name="__codelineno-0-34" href="#__codelineno-0-34"></a><span class="s1"> }</span>
<a id="__codelineno-0-35" name="__codelineno-0-35" href="#__codelineno-0-35"></a><span class="s1"> ],</span>
<a id="__codelineno-0-36" name="__codelineno-0-36" href="#__codelineno-0-36"></a><span class="s1"> &quot;redirection&quot;:&quot;https://github.com/kubernetes-sigs/external-dns/blob/HEAD/docs/tutorials/ovh.md#creating-ovh-credentials&quot;</span>
<a id="__codelineno-0-37" name="__codelineno-0-37" href="#__codelineno-0-37"></a><span class="s1">}&#39;</span>
</code></pre></div>
<h2 id="deploy-externaldns">Deploy ExternalDNS<a class="headerlink" href="#deploy-externaldns" title="Permanent link">&para;</a></h2>
<p>Connect your <code>kubectl</code> client to the cluster with which you want to test ExternalDNS, and then apply one of the following manifest files for deployment:</p>
<h3 id="manifest-for-clusters-without-rbac-enabled">Manifest (for clusters without RBAC enabled)<a class="headerlink" href="#manifest-for-clusters-without-rbac-enabled" title="Permanent link">&para;</a></h3>
<div class="highlight"><pre><span></span><code><a id="__codelineno-1-1" name="__codelineno-1-1" href="#__codelineno-1-1"></a><span class="nt">apiVersion</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">apps/v1</span>
<a id="__codelineno-1-2" name="__codelineno-1-2" href="#__codelineno-1-2"></a><span class="nt">kind</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">Deployment</span>
<a id="__codelineno-1-3" name="__codelineno-1-3" href="#__codelineno-1-3"></a><span class="nt">metadata</span><span class="p">:</span>
<a id="__codelineno-1-4" name="__codelineno-1-4" href="#__codelineno-1-4"></a><span class="w"> </span><span class="nt">name</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">external-dns</span>
<a id="__codelineno-1-5" name="__codelineno-1-5" href="#__codelineno-1-5"></a><span class="nt">spec</span><span class="p">:</span>
<a id="__codelineno-1-6" name="__codelineno-1-6" href="#__codelineno-1-6"></a><span class="w"> </span><span class="nt">strategy</span><span class="p">:</span>
<a id="__codelineno-1-7" name="__codelineno-1-7" href="#__codelineno-1-7"></a><span class="w"> </span><span class="nt">type</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">Recreate</span>
<a id="__codelineno-1-8" name="__codelineno-1-8" href="#__codelineno-1-8"></a><span class="w"> </span><span class="nt">selector</span><span class="p">:</span>
<a id="__codelineno-1-9" name="__codelineno-1-9" href="#__codelineno-1-9"></a><span class="w"> </span><span class="nt">matchLabels</span><span class="p">:</span>
<a id="__codelineno-1-10" name="__codelineno-1-10" href="#__codelineno-1-10"></a><span class="w"> </span><span class="nt">app</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">external-dns</span>
<a id="__codelineno-1-11" name="__codelineno-1-11" href="#__codelineno-1-11"></a><span class="w"> </span><span class="nt">template</span><span class="p">:</span>
<a id="__codelineno-1-12" name="__codelineno-1-12" href="#__codelineno-1-12"></a><span class="w"> </span><span class="nt">metadata</span><span class="p">:</span>
<a id="__codelineno-1-13" name="__codelineno-1-13" href="#__codelineno-1-13"></a><span class="w"> </span><span class="nt">labels</span><span class="p">:</span>
<a id="__codelineno-1-14" name="__codelineno-1-14" href="#__codelineno-1-14"></a><span class="w"> </span><span class="nt">app</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">external-dns</span>
<a id="__codelineno-1-15" name="__codelineno-1-15" href="#__codelineno-1-15"></a><span class="w"> </span><span class="nt">spec</span><span class="p">:</span>
<a id="__codelineno-1-16" name="__codelineno-1-16" href="#__codelineno-1-16"></a><span class="w"> </span><span class="nt">containers</span><span class="p">:</span>
<a id="__codelineno-1-17" name="__codelineno-1-17" href="#__codelineno-1-17"></a><span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="nt">name</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">external-dns</span>
<a id="__codelineno-1-18" name="__codelineno-1-18" href="#__codelineno-1-18"></a><span class="w"> </span><span class="nt">image</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">registry.k8s.io/external-dns/external-dns:v0.17.0</span>
<a id="__codelineno-1-19" name="__codelineno-1-19" href="#__codelineno-1-19"></a><span class="w"> </span><span class="nt">args</span><span class="p">:</span>
<a id="__codelineno-1-20" name="__codelineno-1-20" href="#__codelineno-1-20"></a><span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">--source=service</span><span class="w"> </span><span class="c1"># ingress is also possible</span>
<a id="__codelineno-1-21" name="__codelineno-1-21" href="#__codelineno-1-21"></a><span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">--domain-filter=example.com</span><span class="w"> </span><span class="c1"># (optional) limit to only example.com domains; change to match the zone created above.</span>
<a id="__codelineno-1-22" name="__codelineno-1-22" href="#__codelineno-1-22"></a><span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">--provider=ovh</span>
<a id="__codelineno-1-23" name="__codelineno-1-23" href="#__codelineno-1-23"></a><span class="w"> </span><span class="nt">env</span><span class="p">:</span>
<a id="__codelineno-1-24" name="__codelineno-1-24" href="#__codelineno-1-24"></a><span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="nt">name</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">OVH_APPLICATION_KEY</span>
<a id="__codelineno-1-25" name="__codelineno-1-25" href="#__codelineno-1-25"></a><span class="w"> </span><span class="nt">value</span><span class="p">:</span><span class="w"> </span><span class="s">&quot;YOUR_OVH_APPLICATION_KEY&quot;</span>
<a id="__codelineno-1-26" name="__codelineno-1-26" href="#__codelineno-1-26"></a><span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="nt">name</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">OVH_APPLICATION_SECRET</span>
<a id="__codelineno-1-27" name="__codelineno-1-27" href="#__codelineno-1-27"></a><span class="w"> </span><span class="nt">value</span><span class="p">:</span><span class="w"> </span><span class="s">&quot;YOUR_OVH_APPLICATION_SECRET&quot;</span>
<a id="__codelineno-1-28" name="__codelineno-1-28" href="#__codelineno-1-28"></a><span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="nt">name</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">OVH_CONSUMER_KEY</span>
<a id="__codelineno-1-29" name="__codelineno-1-29" href="#__codelineno-1-29"></a><span class="w"> </span><span class="nt">value</span><span class="p">:</span><span class="w"> </span><span class="s">&quot;YOUR_OVH_CONSUMER_KEY_AFTER_VALIDATED_LINK&quot;</span>
</code></pre></div>
<h3 id="manifest-for-clusters-with-rbac-enabled">Manifest (for clusters with RBAC enabled)<a class="headerlink" href="#manifest-for-clusters-with-rbac-enabled" title="Permanent link">&para;</a></h3>
<div class="highlight"><pre><span></span><code><a id="__codelineno-2-1" name="__codelineno-2-1" href="#__codelineno-2-1"></a><span class="nt">apiVersion</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">v1</span>
<a id="__codelineno-2-2" name="__codelineno-2-2" href="#__codelineno-2-2"></a><span class="nt">kind</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">ServiceAccount</span>
<a id="__codelineno-2-3" name="__codelineno-2-3" href="#__codelineno-2-3"></a><span class="nt">metadata</span><span class="p">:</span>
<a id="__codelineno-2-4" name="__codelineno-2-4" href="#__codelineno-2-4"></a><span class="w"> </span><span class="nt">name</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">external-dns</span>
<a id="__codelineno-2-5" name="__codelineno-2-5" href="#__codelineno-2-5"></a><span class="nn">---</span>
<a id="__codelineno-2-6" name="__codelineno-2-6" href="#__codelineno-2-6"></a><span class="nt">apiVersion</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">rbac.authorization.k8s.io/v1</span>
<a id="__codelineno-2-7" name="__codelineno-2-7" href="#__codelineno-2-7"></a><span class="nt">kind</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">ClusterRole</span>
<a id="__codelineno-2-8" name="__codelineno-2-8" href="#__codelineno-2-8"></a><span class="nt">metadata</span><span class="p">:</span>
<a id="__codelineno-2-9" name="__codelineno-2-9" href="#__codelineno-2-9"></a><span class="w"> </span><span class="nt">name</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">external-dns</span>
<a id="__codelineno-2-10" name="__codelineno-2-10" href="#__codelineno-2-10"></a><span class="nt">rules</span><span class="p">:</span>
<a id="__codelineno-2-11" name="__codelineno-2-11" href="#__codelineno-2-11"></a><span class="p p-Indicator">-</span><span class="w"> </span><span class="nt">apiGroups</span><span class="p">:</span><span class="w"> </span><span class="p p-Indicator">[</span><span class="s">&quot;&quot;</span><span class="p p-Indicator">]</span>
<a id="__codelineno-2-12" name="__codelineno-2-12" href="#__codelineno-2-12"></a><span class="w"> </span><span class="nt">resources</span><span class="p">:</span><span class="w"> </span><span class="p p-Indicator">[</span><span class="s">&quot;services&quot;</span><span class="p p-Indicator">]</span>
<a id="__codelineno-2-13" name="__codelineno-2-13" href="#__codelineno-2-13"></a><span class="w"> </span><span class="nt">verbs</span><span class="p">:</span><span class="w"> </span><span class="p p-Indicator">[</span><span class="s">&quot;get&quot;</span><span class="p p-Indicator">,</span><span class="s">&quot;watch&quot;</span><span class="p p-Indicator">,</span><span class="s">&quot;list&quot;</span><span class="p p-Indicator">]</span>
<a id="__codelineno-2-14" name="__codelineno-2-14" href="#__codelineno-2-14"></a><span class="p p-Indicator">-</span><span class="w"> </span><span class="nt">apiGroups</span><span class="p">:</span><span class="w"> </span><span class="p p-Indicator">[</span><span class="s">&quot;&quot;</span><span class="p p-Indicator">]</span>
<a id="__codelineno-2-15" name="__codelineno-2-15" href="#__codelineno-2-15"></a><span class="w"> </span><span class="nt">resources</span><span class="p">:</span><span class="w"> </span><span class="p p-Indicator">[</span><span class="s">&quot;pods&quot;</span><span class="p p-Indicator">]</span>
<a id="__codelineno-2-16" name="__codelineno-2-16" href="#__codelineno-2-16"></a><span class="w"> </span><span class="nt">verbs</span><span class="p">:</span><span class="w"> </span><span class="p p-Indicator">[</span><span class="s">&quot;get&quot;</span><span class="p p-Indicator">,</span><span class="s">&quot;watch&quot;</span><span class="p p-Indicator">,</span><span class="s">&quot;list&quot;</span><span class="p p-Indicator">]</span>
<a id="__codelineno-2-17" name="__codelineno-2-17" href="#__codelineno-2-17"></a><span class="p p-Indicator">-</span><span class="w"> </span><span class="nt">apiGroups</span><span class="p">:</span><span class="w"> </span><span class="p p-Indicator">[</span><span class="s">&quot;extensions&quot;</span><span class="p p-Indicator">,</span><span class="s">&quot;networking.k8s.io&quot;</span><span class="p p-Indicator">]</span>
<a id="__codelineno-2-18" name="__codelineno-2-18" href="#__codelineno-2-18"></a><span class="w"> </span><span class="nt">resources</span><span class="p">:</span><span class="w"> </span><span class="p p-Indicator">[</span><span class="s">&quot;ingresses&quot;</span><span class="p p-Indicator">]</span>
<a id="__codelineno-2-19" name="__codelineno-2-19" href="#__codelineno-2-19"></a><span class="w"> </span><span class="nt">verbs</span><span class="p">:</span><span class="w"> </span><span class="p p-Indicator">[</span><span class="s">&quot;get&quot;</span><span class="p p-Indicator">,</span><span class="s">&quot;watch&quot;</span><span class="p p-Indicator">,</span><span class="s">&quot;list&quot;</span><span class="p p-Indicator">]</span>
<a id="__codelineno-2-20" name="__codelineno-2-20" href="#__codelineno-2-20"></a><span class="p p-Indicator">-</span><span class="w"> </span><span class="nt">apiGroups</span><span class="p">:</span><span class="w"> </span><span class="p p-Indicator">[</span><span class="s">&quot;&quot;</span><span class="p p-Indicator">]</span>
<a id="__codelineno-2-21" name="__codelineno-2-21" href="#__codelineno-2-21"></a><span class="w"> </span><span class="nt">resources</span><span class="p">:</span><span class="w"> </span><span class="p p-Indicator">[</span><span class="s">&quot;nodes&quot;</span><span class="p p-Indicator">]</span>
<a id="__codelineno-2-22" name="__codelineno-2-22" href="#__codelineno-2-22"></a><span class="w"> </span><span class="nt">verbs</span><span class="p">:</span><span class="w"> </span><span class="p p-Indicator">[</span><span class="s">&quot;list&quot;</span><span class="p p-Indicator">]</span>
<a id="__codelineno-2-23" name="__codelineno-2-23" href="#__codelineno-2-23"></a><span class="p p-Indicator">-</span><span class="w"> </span><span class="nt">apiGroups</span><span class="p">:</span><span class="w"> </span><span class="p p-Indicator">[</span><span class="s">&quot;&quot;</span><span class="p p-Indicator">]</span>
<a id="__codelineno-2-24" name="__codelineno-2-24" href="#__codelineno-2-24"></a><span class="w"> </span><span class="nt">resources</span><span class="p">:</span><span class="w"> </span><span class="p p-Indicator">[</span><span class="s">&quot;endpoints&quot;</span><span class="p p-Indicator">]</span>
<a id="__codelineno-2-25" name="__codelineno-2-25" href="#__codelineno-2-25"></a><span class="w"> </span><span class="nt">verbs</span><span class="p">:</span><span class="w"> </span><span class="p p-Indicator">[</span><span class="s">&quot;get&quot;</span><span class="p p-Indicator">,</span><span class="s">&quot;watch&quot;</span><span class="p p-Indicator">,</span><span class="s">&quot;list&quot;</span><span class="p p-Indicator">]</span>
<a id="__codelineno-2-26" name="__codelineno-2-26" href="#__codelineno-2-26"></a><span class="nn">---</span>
<a id="__codelineno-2-27" name="__codelineno-2-27" href="#__codelineno-2-27"></a><span class="nt">apiVersion</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">rbac.authorization.k8s.io/v1</span>
<a id="__codelineno-2-28" name="__codelineno-2-28" href="#__codelineno-2-28"></a><span class="nt">kind</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">ClusterRoleBinding</span>
<a id="__codelineno-2-29" name="__codelineno-2-29" href="#__codelineno-2-29"></a><span class="nt">metadata</span><span class="p">:</span>
<a id="__codelineno-2-30" name="__codelineno-2-30" href="#__codelineno-2-30"></a><span class="w"> </span><span class="nt">name</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">external-dns-viewer</span>
<a id="__codelineno-2-31" name="__codelineno-2-31" href="#__codelineno-2-31"></a><span class="nt">roleRef</span><span class="p">:</span>
<a id="__codelineno-2-32" name="__codelineno-2-32" href="#__codelineno-2-32"></a><span class="w"> </span><span class="nt">apiGroup</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">rbac.authorization.k8s.io</span>
<a id="__codelineno-2-33" name="__codelineno-2-33" href="#__codelineno-2-33"></a><span class="w"> </span><span class="nt">kind</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">ClusterRole</span>
<a id="__codelineno-2-34" name="__codelineno-2-34" href="#__codelineno-2-34"></a><span class="w"> </span><span class="nt">name</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">external-dns</span>
<a id="__codelineno-2-35" name="__codelineno-2-35" href="#__codelineno-2-35"></a><span class="nt">subjects</span><span class="p">:</span>
<a id="__codelineno-2-36" name="__codelineno-2-36" href="#__codelineno-2-36"></a><span class="p p-Indicator">-</span><span class="w"> </span><span class="nt">kind</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">ServiceAccount</span>
<a id="__codelineno-2-37" name="__codelineno-2-37" href="#__codelineno-2-37"></a><span class="w"> </span><span class="nt">name</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">external-dns</span>
<a id="__codelineno-2-38" name="__codelineno-2-38" href="#__codelineno-2-38"></a><span class="w"> </span><span class="nt">namespace</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">default</span>
<a id="__codelineno-2-39" name="__codelineno-2-39" href="#__codelineno-2-39"></a><span class="nn">---</span>
<a id="__codelineno-2-40" name="__codelineno-2-40" href="#__codelineno-2-40"></a><span class="nt">apiVersion</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">apps/v1</span>
<a id="__codelineno-2-41" name="__codelineno-2-41" href="#__codelineno-2-41"></a><span class="nt">kind</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">Deployment</span>
<a id="__codelineno-2-42" name="__codelineno-2-42" href="#__codelineno-2-42"></a><span class="nt">metadata</span><span class="p">:</span>
<a id="__codelineno-2-43" name="__codelineno-2-43" href="#__codelineno-2-43"></a><span class="w"> </span><span class="nt">name</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">external-dns</span>
<a id="__codelineno-2-44" name="__codelineno-2-44" href="#__codelineno-2-44"></a><span class="nt">spec</span><span class="p">:</span>
<a id="__codelineno-2-45" name="__codelineno-2-45" href="#__codelineno-2-45"></a><span class="w"> </span><span class="nt">strategy</span><span class="p">:</span>
<a id="__codelineno-2-46" name="__codelineno-2-46" href="#__codelineno-2-46"></a><span class="w"> </span><span class="nt">type</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">Recreate</span>
<a id="__codelineno-2-47" name="__codelineno-2-47" href="#__codelineno-2-47"></a><span class="w"> </span><span class="nt">selector</span><span class="p">:</span>
<a id="__codelineno-2-48" name="__codelineno-2-48" href="#__codelineno-2-48"></a><span class="w"> </span><span class="nt">matchLabels</span><span class="p">:</span>
<a id="__codelineno-2-49" name="__codelineno-2-49" href="#__codelineno-2-49"></a><span class="w"> </span><span class="nt">app</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">external-dns</span>
<a id="__codelineno-2-50" name="__codelineno-2-50" href="#__codelineno-2-50"></a><span class="w"> </span><span class="nt">template</span><span class="p">:</span>
<a id="__codelineno-2-51" name="__codelineno-2-51" href="#__codelineno-2-51"></a><span class="w"> </span><span class="nt">metadata</span><span class="p">:</span>
<a id="__codelineno-2-52" name="__codelineno-2-52" href="#__codelineno-2-52"></a><span class="w"> </span><span class="nt">labels</span><span class="p">:</span>
<a id="__codelineno-2-53" name="__codelineno-2-53" href="#__codelineno-2-53"></a><span class="w"> </span><span class="nt">app</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">external-dns</span>
<a id="__codelineno-2-54" name="__codelineno-2-54" href="#__codelineno-2-54"></a><span class="w"> </span><span class="nt">spec</span><span class="p">:</span>
<a id="__codelineno-2-55" name="__codelineno-2-55" href="#__codelineno-2-55"></a><span class="w"> </span><span class="nt">serviceAccountName</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">external-dns</span>
<a id="__codelineno-2-56" name="__codelineno-2-56" href="#__codelineno-2-56"></a><span class="w"> </span><span class="nt">containers</span><span class="p">:</span>
<a id="__codelineno-2-57" name="__codelineno-2-57" href="#__codelineno-2-57"></a><span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="nt">name</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">external-dns</span>
<a id="__codelineno-2-58" name="__codelineno-2-58" href="#__codelineno-2-58"></a><span class="w"> </span><span class="nt">image</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">registry.k8s.io/external-dns/external-dns:v0.17.0</span>
<a id="__codelineno-2-59" name="__codelineno-2-59" href="#__codelineno-2-59"></a><span class="w"> </span><span class="nt">args</span><span class="p">:</span>
<a id="__codelineno-2-60" name="__codelineno-2-60" href="#__codelineno-2-60"></a><span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">--source=service</span><span class="w"> </span><span class="c1"># ingress is also possible</span>
<a id="__codelineno-2-61" name="__codelineno-2-61" href="#__codelineno-2-61"></a><span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">--domain-filter=example.com</span><span class="w"> </span><span class="c1"># (optional) limit to only example.com domains; change to match the zone created above.</span>
<a id="__codelineno-2-62" name="__codelineno-2-62" href="#__codelineno-2-62"></a><span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">--provider=ovh</span>
<a id="__codelineno-2-63" name="__codelineno-2-63" href="#__codelineno-2-63"></a><span class="w"> </span><span class="nt">env</span><span class="p">:</span>
<a id="__codelineno-2-64" name="__codelineno-2-64" href="#__codelineno-2-64"></a><span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="nt">name</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">OVH_APPLICATION_KEY</span>
<a id="__codelineno-2-65" name="__codelineno-2-65" href="#__codelineno-2-65"></a><span class="w"> </span><span class="nt">value</span><span class="p">:</span><span class="w"> </span><span class="s">&quot;YOUR_OVH_APPLICATION_KEY&quot;</span>
<a id="__codelineno-2-66" name="__codelineno-2-66" href="#__codelineno-2-66"></a><span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="nt">name</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">OVH_APPLICATION_SECRET</span>
<a id="__codelineno-2-67" name="__codelineno-2-67" href="#__codelineno-2-67"></a><span class="w"> </span><span class="nt">value</span><span class="p">:</span><span class="w"> </span><span class="s">&quot;YOUR_OVH_APPLICATION_SECRET&quot;</span>
<a id="__codelineno-2-68" name="__codelineno-2-68" href="#__codelineno-2-68"></a><span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="nt">name</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">OVH_CONSUMER_KEY</span>
<a id="__codelineno-2-69" name="__codelineno-2-69" href="#__codelineno-2-69"></a><span class="w"> </span><span class="nt">value</span><span class="p">:</span><span class="w"> </span><span class="s">&quot;YOUR_OVH_CONSUMER_KEY_AFTER_VALIDATED_LINK&quot;</span>
</code></pre></div>
<h2 id="deploying-an-nginx-service">Deploying an Nginx Service<a class="headerlink" href="#deploying-an-nginx-service" title="Permanent link">&para;</a></h2>
<p>Create a service file called &lsquo;nginx.yaml&rsquo; with the following contents:</p>
<div class="highlight"><pre><span></span><code><a id="__codelineno-3-1" name="__codelineno-3-1" href="#__codelineno-3-1"></a><span class="nt">apiVersion</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">apps/v1</span>
<a id="__codelineno-3-2" name="__codelineno-3-2" href="#__codelineno-3-2"></a><span class="nt">kind</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">Deployment</span>
<a id="__codelineno-3-3" name="__codelineno-3-3" href="#__codelineno-3-3"></a><span class="nt">metadata</span><span class="p">:</span>
<a id="__codelineno-3-4" name="__codelineno-3-4" href="#__codelineno-3-4"></a><span class="w"> </span><span class="nt">name</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">nginx</span>
<a id="__codelineno-3-5" name="__codelineno-3-5" href="#__codelineno-3-5"></a><span class="nt">spec</span><span class="p">:</span>
<a id="__codelineno-3-6" name="__codelineno-3-6" href="#__codelineno-3-6"></a><span class="w"> </span><span class="nt">selector</span><span class="p">:</span>
<a id="__codelineno-3-7" name="__codelineno-3-7" href="#__codelineno-3-7"></a><span class="w"> </span><span class="nt">matchLabels</span><span class="p">:</span>
<a id="__codelineno-3-8" name="__codelineno-3-8" href="#__codelineno-3-8"></a><span class="w"> </span><span class="nt">app</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">nginx</span>
<a id="__codelineno-3-9" name="__codelineno-3-9" href="#__codelineno-3-9"></a><span class="w"> </span><span class="nt">template</span><span class="p">:</span>
<a id="__codelineno-3-10" name="__codelineno-3-10" href="#__codelineno-3-10"></a><span class="w"> </span><span class="nt">metadata</span><span class="p">:</span>
<a id="__codelineno-3-11" name="__codelineno-3-11" href="#__codelineno-3-11"></a><span class="w"> </span><span class="nt">labels</span><span class="p">:</span>
<a id="__codelineno-3-12" name="__codelineno-3-12" href="#__codelineno-3-12"></a><span class="w"> </span><span class="nt">app</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">nginx</span>
<a id="__codelineno-3-13" name="__codelineno-3-13" href="#__codelineno-3-13"></a><span class="w"> </span><span class="nt">spec</span><span class="p">:</span>
<a id="__codelineno-3-14" name="__codelineno-3-14" href="#__codelineno-3-14"></a><span class="w"> </span><span class="nt">containers</span><span class="p">:</span>
<a id="__codelineno-3-15" name="__codelineno-3-15" href="#__codelineno-3-15"></a><span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="nt">image</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">nginx</span>
<a id="__codelineno-3-16" name="__codelineno-3-16" href="#__codelineno-3-16"></a><span class="w"> </span><span class="nt">name</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">nginx</span>
<a id="__codelineno-3-17" name="__codelineno-3-17" href="#__codelineno-3-17"></a><span class="w"> </span><span class="nt">ports</span><span class="p">:</span>
<a id="__codelineno-3-18" name="__codelineno-3-18" href="#__codelineno-3-18"></a><span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="nt">containerPort</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">80</span>
<a id="__codelineno-3-19" name="__codelineno-3-19" href="#__codelineno-3-19"></a><span class="nn">---</span>
<a id="__codelineno-3-20" name="__codelineno-3-20" href="#__codelineno-3-20"></a><span class="nt">apiVersion</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">v1</span>
<a id="__codelineno-3-21" name="__codelineno-3-21" href="#__codelineno-3-21"></a><span class="nt">kind</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">Service</span>
<a id="__codelineno-3-22" name="__codelineno-3-22" href="#__codelineno-3-22"></a><span class="nt">metadata</span><span class="p">:</span>
<a id="__codelineno-3-23" name="__codelineno-3-23" href="#__codelineno-3-23"></a><span class="w"> </span><span class="nt">name</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">nginx</span>
<a id="__codelineno-3-24" name="__codelineno-3-24" href="#__codelineno-3-24"></a><span class="w"> </span><span class="nt">annotations</span><span class="p">:</span>
<a id="__codelineno-3-25" name="__codelineno-3-25" href="#__codelineno-3-25"></a><span class="w"> </span><span class="nt">external-dns.alpha.kubernetes.io/hostname</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">example.com</span>
<a id="__codelineno-3-26" name="__codelineno-3-26" href="#__codelineno-3-26"></a><span class="w"> </span><span class="nt">external-dns.alpha.kubernetes.io/ttl</span><span class="p">:</span><span class="w"> </span><span class="s">&quot;120&quot;</span><span class="w"> </span><span class="c1">#optional</span>
<a id="__codelineno-3-27" name="__codelineno-3-27" href="#__codelineno-3-27"></a><span class="nt">spec</span><span class="p">:</span>
<a id="__codelineno-3-28" name="__codelineno-3-28" href="#__codelineno-3-28"></a><span class="w"> </span><span class="nt">selector</span><span class="p">:</span>
<a id="__codelineno-3-29" name="__codelineno-3-29" href="#__codelineno-3-29"></a><span class="w"> </span><span class="nt">app</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">nginx</span>
<a id="__codelineno-3-30" name="__codelineno-3-30" href="#__codelineno-3-30"></a><span class="w"> </span><span class="nt">type</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">LoadBalancer</span>
<a id="__codelineno-3-31" name="__codelineno-3-31" href="#__codelineno-3-31"></a><span class="w"> </span><span class="nt">ports</span><span class="p">:</span>
<a id="__codelineno-3-32" name="__codelineno-3-32" href="#__codelineno-3-32"></a><span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="nt">protocol</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">TCP</span>
<a id="__codelineno-3-33" name="__codelineno-3-33" href="#__codelineno-3-33"></a><span class="w"> </span><span class="nt">port</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">80</span>
<a id="__codelineno-3-34" name="__codelineno-3-34" href="#__codelineno-3-34"></a><span class="w"> </span><span class="nt">targetPort</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">80</span>
</code></pre></div>
<p><strong>A note about annotations</strong></p>
<p>Verify that the annotation on the service uses the same hostname as the OVHcloud DNS zone created above. The annotation may also be a subdomain of the DNS zone (e.g. &lsquo;www.example.com&rsquo;).</p>
<p>The TTL annotation can be used to configure the TTL on DNS records managed by ExternalDNS and is optional. If this annotation is not set, the TTL on records managed by ExternalDNS will default to 10.</p>
<p>ExternalDNS uses the hostname annotation to determine which services should be registered with DNS. Removing the hostname annotation will cause ExternalDNS to remove the corresponding DNS records.</p>
<h3 id="create-the-deployment-and-service">Create the deployment and service<a class="headerlink" href="#create-the-deployment-and-service" title="Permanent link">&para;</a></h3>
<div class="highlight"><pre><span></span><code><a id="__codelineno-4-1" name="__codelineno-4-1" href="#__codelineno-4-1"></a>kubectl<span class="w"> </span>create<span class="w"> </span>-f<span class="w"> </span>nginx.yaml
</code></pre></div>
<p>Depending on where you run your service, it may take some time for your cloud provider to create an external IP for the service. Once an external IP is assigned, ExternalDNS detects the new service IP address and synchronizes the OVHcloud DNS records.</p>
<h2 id="verifying-ovhcloud-dns-records">Verifying OVHcloud DNS records<a class="headerlink" href="#verifying-ovhcloud-dns-records" title="Permanent link">&para;</a></h2>
<p>Use the OVHcloud manager or API to verify that the A record for your domain shows the external IP address of the services.</p>
<h2 id="cleanup">Cleanup<a class="headerlink" href="#cleanup" title="Permanent link">&para;</a></h2>
<p>Once you successfully configure and verify record management via ExternalDNS, you can delete the tutorial&rsquo;s example:</p>
<div class="highlight"><pre><span></span><code><a id="__codelineno-5-1" name="__codelineno-5-1" href="#__codelineno-5-1"></a>kubectl<span class="w"> </span>delete<span class="w"> </span>-f<span class="w"> </span>nginx.yaml
<a id="__codelineno-5-2" name="__codelineno-5-2" href="#__codelineno-5-2"></a>kubectl<span class="w"> </span>delete<span class="w"> </span>-f<span class="w"> </span>externaldns.yaml
</code></pre></div>
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