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\n\n# ExternalDNS Advanced Helm Chart\n\nExternalDNS is a Kubernetes addon that configures public DNS servers with information about exposed Kubernetes services to make them discoverable. The ExternalDNS Advanced Helm chart automates deployment and configuration of ExternalDNS in Kubernetes clusters using Minimus images with **hardened security** and **production-grade configuration**.\n\n\n## {{icon-list-search}} Prerequisites\n\n- A subscription to the Minimus images included in the chart\n- A running Kubernetes cluster (v1.21 or higher is recommended)\n- `kubectl` installed and configured\n- Helm v3.8 or higher for OCI support ([Installation instructions](https://helm.sh/docs/intro/install/))\n- Cluster Admin privileges\n\n

\n\n---\n\n

\n\n## {{icon-rocket}}Try It Out\n\nIn this example we will deploy ExternalDNS on a Kubernetes cluster using the Minimus ExternalDNS Advanced Helm chart. ExternalDNS will be configured to automatically manage DNS records for your Kubernetes services out of the box.\n\n

\n\n### Step 1: Start Cluster\n\n

\n\nIf you have a cluster to work with, skip this step. Otherwise, start a Minikube cluster. [Deployment instructions](https://minikube.sigs.k8s.io/docs/start/?arch=%2Flinux%2Fx86-64%2Fstable%2Fbinary+download)\n\n

\n\n### Step 2: Create Namespace\n\n

\n\nCreate a namespace:\n\n```\nkubectl create ns external-dns-advanced\n```\n\n{{if-enterprise}}\n\nNext, create a Kubernetes secret for the Minimus token:\n\n```\nkubectl create secret docker-registry minimus-registry \\\n --docker-server=reg.mini.dev \\\n --docker-username=minimus \\\n --docker-password={{pull-token}} \\\n --namespace=external-dns-advanced\n```\n\n{{/if-enterprise}}\n\n

\n\n### Step 3: Deploy the Helm Chart\n\n

\n\nDeploy the Minimus Helm chart:\n\n```\nhelm install my-external-dns-advanced {{oci-url}} \\\n --version {{chart-version}} \\\n -n external-dns-advanced \\\n --wait\n```\n\nIf you want to override the chart's defaults, go to the Values tab, save a copy locally with your changes. Deploy the chart with your overrides using `-f values.yaml`:\n\n```\nhelm install my-external-dns-advanced {{oci-url}} \\\n --version {{chart-version}} \\\n -f values.yaml \\\n -n external-dns-advanced \\\n --wait\n```\n\n

\n\n### Step 4: Verify ExternalDNS Advanced is Running\n\n

\n\nCheck that the ExternalDNS pods are running:\n\n```\nkubectl get pods -n external-dns-advanced\n```\n\nYou should see output similar to:\n\n```\nNAME READY STATUS RESTARTS AGE\nmy-external-dns-advanced-external-dns-xxxxxxxxx-xxxxx 1/1 Running 0 2m\n```\n\n

\n\n### Step 5: Test HTTP Endpoint\n\n

\n\nForward the ExternalDNS metrics and health port to your local machine:\n\n```\nkubectl port-forward svc/my-external-dns-advanced-external-dns 7979:7979 -n external-dns-advanced\n```\n\nIn another terminal, verify the health endpoint:\n\n```\ncurl -sf http://localhost:7979/healthz\n```\n\nYou should receive an empty `200 OK` response confirming ExternalDNS is healthy and ready to manage DNS records.\n\n

\n\n### Step 6: Clean Up\n\n

\n\nUninstall the chart and delete the namespace to remove all resources:\n\n```\nhelm uninstall my-external-dns-advanced -n external-dns-advanced\nkubectl delete namespace external-dns-advanced\n```\n\n

\n\n---\n\n

\n\n## {{icon-info-circle}}Terms & Info\n\n

\n\n### Trademark\n\n

\n\nThis catalog is published by Minimus. All product names, logos, and marks, other than those belonging to Minimus, shown are owned by their respective rights holders and appear here only to identify the open source software each image contains. Minimus claims no ownership of those marks and implies no affiliation with, endorsement by, certification by, or sponsorship by any rights holder.\n\n\n{{if-anonymous}} \n\n

\n\n### Disclaimer\n\n

\n\n\nImages are provided \"as-is\" without warranty of any kind. \"Hardened\" refers to the security configuration applied at the time of build and does not constitute a guarantee of ongoing security or absence of vulnerabilities. The free tier is provided without support, SLA, or guaranteed patching timelines. Security updates may be applied to paid subscriptions before or instead of free tier images. By pulling or using any image you agree to our [Terms of Use](https://www.minimus.io/terms-of-use).\n\n{{/if-anonymous}}\n\n\n

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