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<li class="md-nav__item">
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<a href="../exposing-tcp-udp-services/" title="Exposing TCP and UDP services" class="md-nav__link">
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Exposing TCP and UDP services
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<a href="../ingress-path-matching/" title="Regular expressions in paths" class="md-nav__link">
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Regular expressions in paths
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</a>
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</li>
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@ -981,18 +981,6 @@
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<li class="md-nav__item">
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<a href="../../examples/customization/custom-upstream-check/" title="Custom Upstream server checks" class="md-nav__link">
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Custom Upstream server checks
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../../examples/customization/external-auth-headers/" title="External authentication" class="md-nav__link">
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External authentication
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<p>The Prometheus server must be configured so that it can discover endpoints of services. If a Prometheus server is already running in the cluster and if it is configured in a way that it can find the ingress controller pods, no extra configuration is needed.</p>
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<p>If there is no existing Prometheus server running, the rest of this tutorial will guide you through the steps needed to deploy a properly configured Prometheus server.</p>
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<p>Running the following command deploys the prometheus configuration in Kubernetes:</p>
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<table class="codehilitetable"><tr><td class="linenos"><div class="linenodiv"><pre><span></span>1
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2</pre></div></td><td class="code"><div class="codehilite"><pre><span></span><span class="go">kubectl create -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/deploy/monitoring/configuration.yaml</span>
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<div class="codehilite"><pre><span></span><span class="go">kubectl create -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/deploy/monitoring/configuration.yaml</span>
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<span class="go">configmap "prometheus-configuration" created</span>
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</pre></div>
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</td></tr></table>
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<p>Running the following command deploys prometheus in Kubernetes:</p>
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<table class="codehilitetable"><tr><td class="linenos"><div class="linenodiv"><pre><span></span>1
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5
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6</pre></div></td><td class="code"><div class="codehilite"><pre><span></span><span class="go">kubectl create -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/deploy/monitoring/prometheus.yaml</span>
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<div class="codehilite"><pre><span></span><span class="go">kubectl create -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/deploy/monitoring/prometheus.yaml</span>
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<span class="go">clusterrole "prometheus-server" created</span>
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<span class="go">serviceaccount "prometheus-server" created</span>
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<span class="go">clusterrolebinding "prometheus-server" created</span>
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<span class="go">deployment "prometheus-server" created</span>
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<span class="go">service "prometheus-server" created</span>
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</pre></div>
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</td></tr></table>
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<h3 id="prometheus-dashboard">Prometheus Dashboard<a class="headerlink" href="#prometheus-dashboard" title="Permanent link">¶</a></h3>
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<p>Open Prometheus dashboard in a web browser:</p>
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<table class="codehilitetable"><tr><td class="linenos"><div class="linenodiv"><pre><span></span>1
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5</pre></div></td><td class="code"><div class="codehilite"><pre><span></span><span class="go">kubectl get svc -n ingress-nginx</span>
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<div class="codehilite"><pre><span></span><span class="go">kubectl get svc -n ingress-nginx</span>
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<span class="go">NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE</span>
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<span class="go">default-http-backend ClusterIP 10.103.59.201 <none> 80/TCP 3d</span>
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<span class="go">ingress-nginx NodePort 10.97.44.72 <none> 80:30100/TCP,443:30154/TCP,10254:32049/TCP 5h</span>
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<span class="go">prometheus-server NodePort 10.98.233.86 <none> 9090:32630/TCP 1m</span>
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</pre></div>
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</td></tr></table>
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<p>Obtain the IP address of the nodes in the running cluster:</p>
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<table class="codehilitetable"><tr><td class="linenos"><div class="linenodiv"><pre><span></span>1</pre></div></td><td class="code"><div class="codehilite"><pre><span></span><span class="go">kubectl get nodes -o wide</span>
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<div class="codehilite"><pre><span></span><span class="go">kubectl get nodes -o wide</span>
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</pre></div>
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</td></tr></table>
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<p>In some cases where the node only have internal IP addresses we need to execute:</p>
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<table class="codehilitetable"><tr><td class="linenos"><div class="linenodiv"><pre><span></span>1
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2</pre></div></td><td class="code"><div class="codehilite"><pre><span></span><span class="go">kubectl get nodes --selector=kubernetes.io/role!=master -o jsonpath={.items[*].status.addresses[?\(@.type==\"InternalIP\"\)].address}</span>
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<div class="codehilite"><pre><span></span><span class="go">kubectl get nodes --selector=kubernetes.io/role!=master -o jsonpath={.items[*].status.addresses[?\(@.type==\"InternalIP\"\)].address}</span>
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<span class="go">10.192.0.2 10.192.0.3 10.192.0.4</span>
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</pre></div>
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</td></tr></table>
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<p>Open your browser and visit the following URL: <em>http://{node IP address}:{prometheus-svc-nodeport}</em> to load the Prometheus Dashboard.</p>
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<p>According to the above example, this URL will be http://10.192.0.3:32630</p>
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<p><img alt="Dashboard" src="../../images/prometheus-dashboard.png" /></p>
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<h3 id="grafana">Grafana<a class="headerlink" href="#grafana" title="Permanent link">¶</a></h3>
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<table class="codehilitetable"><tr><td class="linenos"><div class="linenodiv"><pre><span></span>1</pre></div></td><td class="code"><div class="codehilite"><pre><span></span><span class="go">kubectl create -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/deploy/monitoring/grafana.yaml</span>
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<div class="codehilite"><pre><span></span><span class="go">kubectl create -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/deploy/monitoring/grafana.yaml</span>
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</pre></div>
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</td></tr></table>
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<table class="codehilitetable"><tr><td class="linenos"><div class="linenodiv"><pre><span></span>1
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6</pre></div></td><td class="code"><div class="codehilite"><pre><span></span><span class="go">kubectl get svc -n ingress-nginx</span>
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<div class="codehilite"><pre><span></span><span class="go">kubectl get svc -n ingress-nginx</span>
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<span class="go">NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE</span>
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<span class="go">default-http-backend ClusterIP 10.103.59.201 <none> 80/TCP 3d</span>
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<span class="go">ingress-nginx NodePort 10.97.44.72 <none> 80:30100/TCP,443:30154/TCP,10254:32049/TCP 5h</span>
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<span class="go">prometheus-server NodePort 10.98.233.86 <none> 9090:32630/TCP 10m</span>
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<span class="go">grafana NodePort 10.98.233.87 <none> 3000:31086/TCP 10m</span>
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</pre></div>
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</td></tr></table>
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<p>Open your browser and visit the following URL: <em>http://{node IP address}:{grafana-svc-nodeport}</em> to load the Grafana Dashboard.
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According to the above example, this URL will be http://10.192.0.3:31086</p>
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