> For the complete documentation index, see [llms.txt](https://docs.duplocloud.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.duplocloud.com/docs/automation-platform/overview/quick-start/quick-start-duplocloud-docker-services/step-6-create-loadbalancer.md).

# Step 6: Create a Load Balancer

Create a Load Balancer to expose the native Docker Service

Now that your DuploCloud Service is running, you have a mechanism to expose the containers and images in which your application resides. Since your containers are in a private network, you need a Load Balancer to make the application accessible.

In this step, we add a Load Balancer Listener to complete this network configuration.

*Estimated time to complete Step 6: 15 minutes.*

## Prerequisites

Before creating a Load Balancer, verify that you completed the tasks in the previous tutorial steps. Using the DuploCloud Portal, confirm that:

* An [Infrastructure and Plan](/docs/automation-platform/overview/quick-start/step-1-infrastructure.md) exist, both named **NONPROD**.
* A Tenant named [**dev01** has been created](/docs/automation-platform/overview/quick-start/step-2-tenant.md).
* An EC2 Host named [host01 has been created](/docs/automation-platform/overview/quick-start/quick-start-duplocloud-docker-services/step-4-create-ec2-host.md).
* A Service named [**demo-service-d01** has been created](/docs/automation-platform/overview/quick-start/quick-start-duplocloud-docker-services/step-5-create-app-via-docker-native.md).

## Creating a Load Balancer using Native Docker

1. In the **Tenant** list box, select **dev01**.
2. Navigate to **Docker** -> **Services**.
3. Select the Service **demo-service-d01** [that you created](/docs/automation-platform/overview/quick-start/quick-start-duplocloud-docker-services/step-5-create-app-via-docker-native.md).
4. Click the **Load Balancers** tab.
5. Click the **Configure Load Balancer** link. The **Add Load Balancer Listener** pane displays.
6. From the **Select Type** list box, select **Application LB**.
7. In the **Container Port** field, enter **3000**: the port on which the application running inside the container image (**duplocloud/nodejs-hello:latest**) is running.
8. In the **External Port** field, enter **80**.
9. From the **Visibility** list box, select **Public**.
10. From the **Application** list box, select **Docker Mode**.
11. In the **Health Check** field, enter **/**, indicating that you want the Kubernetes Health Check logs written to the **root** directory.
12. From the **Backend Protocol** list box, select **HTTP**.
13. Click **Add**.

<div align="left"><figure><img src="https://2471407984-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F68cb0s9ce5UIUKWPuYs8%2Fuploads%2FoV1ZxVP8Nur9gcAuHzKL%2Fdockerp.png?alt=media&amp;token=cdb1dca9-ef26-46ee-8121-082b7d46967a" alt=""><figcaption><p>The <strong>Add Load Balancer Listener</strong> pane</p></figcaption></figure></div>

When the **LB Status** card displays **Ready**, your Load Balancer is running and ready for use.

<figure><img src="https://2471407984-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F68cb0s9ce5UIUKWPuYs8%2Fuploads%2FyD5jaPTEDj0h6vbKRsrB%2FScreenshot%20(142).png?alt=media&amp;token=4acd3c51-b8c1-47da-847a-2e7ebf53d16f" alt=""><figcaption><p>The <strong>Services</strong> page with LB Status <strong>Ready</strong></p></figcaption></figure>

### Securing the Load Balancer

If you want to secure the load balancer created, you can follow the steps specified [here.](/docs/automation-platform/overview/quick-start/quick-start-eks-services/step-7-secure-the-load-balancer.md)

### Creating a Custom DNS Name

You can modify the DNS name by clicking Edit in the DNS Name card in the Load Balancers tab. For more info about DNS setup and custom DNS names, see the [DNS Configuration documentation](/docs/automation-platform/duplocloud-prerequisites/resolving-dns-failures.md).

<div align="left"><figure><img src="https://2471407984-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F68cb0s9ce5UIUKWPuYs8%2Fuploads%2FNT31buS260RDzAQr8UtJ%2Fshitpic.png?alt=media&amp;token=a762715a-66bf-403f-9daf-6c36e7602dec" alt="" width="563"><figcaption><p>The <strong>DNS Name</strong> card in the <strong>Load Balancers</strong> tab</p></figcaption></figure></div>


---

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