How-to guides

Users can create a service by entering the required Load Balancer information and selecting detailed options through the Samsung Cloud Platform Console.

Create Load Balancer

You can create and use a Load Balancer service from the Samsung Cloud Platform Console.

To create a Load Balancer, follow these steps.

1. All Services > Networking > Load Balancer click the menu. 1. Go to the Load Balancer’s Service Home page.
2. Service Home on the page, click the Create Load Balancer button. 2. Go to the Load Balancer creation page.
3. On the Load Balancer creation page, enter the information required to create the service and select detailed options.
   • Enter or select the required information in the Service Information Input area.

• In the Additional Information Input area, enter or select the required information.

  Category	Required status	Detailed description
  Explanation	Select	Enter resource description
  tag	Select	Add tags Up to 50 tags can be added per resource

  Table. Load Balancer additional information input fields

4. Check the created service information and the estimated billing amount, and click the Create button.
   • Once creation is complete, check the created resources on the Load Balancer List page.
     Information

     • Load Balancer service does not provide access control for Service IP and service ports.
       
       • When creating a Load Balancer, select Use Firewall to manage communication between the client and the Load Balancer, and between the Load Balancer and members with firewall rules, and enable Save Firewall Logs to store access logs, which is recommended.
     • When creating a service and using the Firewall log storage feature, you must configure the log repository first. * If the log storage configuration is not completed, you cannot create a Load Balancer service.
     Caution

     If you use a firewall, you must add the rules required for Load Balancer communication. Register the rules, paying attention to the direction for each purpose.
     

     • If you do not add a rule, the Load Balancer service will not operate correctly.

     

     Purpose	Source IP	Destination IP	Protocol	Destination Port/Type	Direction
     Client → LB connection	Client IP	LB Service IP	Listener protocol	Listener service port	Outbound
     LB → Member connection	LB Source NAT IP	LB server group member IP	LB server group protocol	Member port	Inbound
     LB → Member health check	LB health check IP	LB server group member IP	Health check protocol	Health check port When the health check port and member port are different, register the member port	Inbound

     Figure and table. Add Load Balancer Firewall rule

Load Balancer View detailed information

The Load Balancer service can be viewed and edited for resource lists and detailed information in the Load Balancer menu. The Load Balancer Details page consists of the Details, Connected Resources, Tags, Operation History tabs.

To view detailed information about the Load Balancer service, follow these steps.

1. All Services > Networking > Load Balancer Click the menu. 1. Navigate to the Load Balancer’s Service Home page.
2. On the Service Home page, click the Load Balancer menu. 2. Go to the Load Balancer List page.
3. On the Load Balancer List page, click the resource for which you want to view detailed information. 3. Go to the Load Balancer Details page.
   • Load Balancer Details page displays status information and additional feature information, and consists of Detailed Information, Connected Resources, Tags, Operation History tabs.

     Category	Detailed description
     Status	Load Balancer resource status Active: Service is active and operating normally Deleting: Service termination request is being processed Creating: Service creation request is being processed Error: Unable to determine current status due to internal error Editing: Service modification request is being processed
     Service cancellation	Delete Load Balancer resource

     Table. Load Balancer status information and additional feature items

Detailed Information

In the Detailed Information tab, you can view the detailed information of the resource selected from the Load Balancer list and edit the necessary information.

Connected resource

Connected Resources tab allows you to view the list of Listeners attached to the Load Balancer and to create or delete Listeners.

• In the Connected Resources tab, when you select the Listener item, you are taken to the Listener Details page where you can view, edit, and delete the detailed information.
• Listener Details page item, clicking the Edit icon lets you modify the information.

Tag

On the Load Balancer List page, you can view the tag information of the selected resource and add, modify, or delete it.

Job History

Task History tab allows you to view the task history of the selected resource.

Load Balancer Resource Management

You can manage resources such as creating and deleting a Load Balancer’s Listener.

Create Listener

Create a Listener on the Load Balancer to receive client requests and handle traffic according to the Listener configuration.

Creating a Listener in L4 Load Balancer

To create a Listener in the L4 Load Balancer, follow these steps.

1. All Services > Networking > Load Balancer Click the menu. 1. Navigate to the Load Balancer’s Service Home page.
2. On the Service Home page, click the Load Balancer menu. 2. Navigate to the Load Balancer List page.
3. Load Balancer List page, click the Load Balancer resource to create a Listener. 3. Load Balancer Details page.
4. On the Load Balancer Details page, click the Connected Resources tab. 4. Navigate to the Connected Resources tab page.
5. On the Connected Resources tab page, click the Create Listener button in the upper right.
6. Enter or select the required information in the Service Information Input area.
   • The information that can be entered varies depending on the protocol.

7. In the Additional Information Input area, enter or select the required information.

8. Check the created service information and click the Create button.
   • After creation is complete, check the created resources on the Load Balancer Details page’s Connected Resources tab.

Creating a Listener in L7 Load Balancer

To create a Listener in the L7 Load Balancer, follow these steps.

1. All Services > Networking > Load Balancer menu, click it. 1. Navigate to the Load Balancer’s Service Home page.
2. On the Service Home page, click the Load Balancer menu. 2. Navigate to the Load Balancer List page.
3. Load Balancer List page, click the Load Balancer resource to create a Listener. 3. Go to the Load Balancer Details page.
4. On the Load Balancer Details page, click the Connected Resources tab. 4. Go to the Connected Resources tab page.
5. On the Connected Resources tab page, click the Create Listener button in the upper right.
6. In the Service Information Input area, enter or select the required information.
   • According to the Protocol, the information that can be entered varies.

7. In the Additional Information Input area, enter or select the required information.

8. Verify the created service information and click the Create button.
   • When creation is complete, verify the created resources on the Load Balancer Details page’s Connected Resources tab.

Supported Items by SSL Security Level

The list of TLS versions and Cipher Suites supported by the Listener for each SSL security level is as follows.

Check Listener detailed information

On the Load Balancer Details page, you can select the Listener in the Connected Resources tab to view and edit its detailed information.

To view detailed information about the Listener, follow these steps.

1. All Services > Networking > Load Balancer menu, click it. 1. Navigate to the Load Balancer’s Service Home page.
2. On the Service Home page, click the Load Balancer menu. 2. Go to the Load Balancer List page.
3. On the Load Balancer List page, click the resource to view detailed information. 3. Navigate to the Load Balancer Details page.
4. Click the Connected Resources tab on the Load Balancer Details page.
5. Click the Listener to view detailed information in the list of connected resources. 5. Navigate to the Listener Details page.
   • Listener Details The page displays status information and additional feature information, and is composed of the Details, Tags, Activity History tabs.

Detailed Information

Detailed Information tab allows you to view the Listener’s detailed information and edit necessary details. Detailed information varies depending on the Load Balancer in use.

L4 Load Balancer Detailed Information

L7 Load Balancer Detailed Information

Tag

You can view, add, modify, or delete a Listener’s tag information.

Job History

You can view the Listener’s operation history.

Modify routing rules

On the Load Balancer Details page, you can modify the Listener’s routing rules in the Connected Resources tab.

To modify the Listener’s routing rules, follow these steps.

1. All Services > Networking > Load Balancer menu, click it. 1. Navigate to the Service Home page of the Load Balancer.
2. On the Service Home page, click the Load Balancer menu. 2. Load Balancer List navigate to the page.
3. On the Load Balancer list page, click the resource whose detailed information you want to view. 3. Go to the Load Balancer Details page.
4. On the Load Balancer Details page, click the Connected Resources tab.
5. In the list of connected resources, click the Listener to modify the routing condition. 5. Go to the Listener Details page.
6. On the Listener Details page, click the Edit icon for the Routing Rules item. 6. Routing Rule Modification popup opens.
7. After modifying the routing rule according to the routing action, click the Confirm button.

   Category	Required status	Detailed description
   Routing action	-	Current routing method (cannot be modified)
   Routing condition	Required	If the routing action is LB server group forwarding, you can modify the sub-settings of the routing condition URL path: Modify request URL path and LB server group (up to 20 additions possible) host header: Modify request host and LB server group (up to 20 additions possible)
   Redirect target	Required	If the routing action is URL redirection, the redirection target can be modified URL: modify redirection URL Protocol/Port: modify redirection port

   Table. Listener routing rule modification items

Add or modify response header

On the Load Balancer Details page, you can modify the addition of response headers for the Listener in the Connected Resources tab.

To modify the Listener’s response header addition, follow these steps.

1. All Services > Networking > Load Balancer menu, click it. 1. Go to the Load Balancer’s Service Home page.
2. On the Service Home page, click the Load Balancer menu. 2. Navigate to the Load Balancer List page.
3. Load Balancer List page, click the resource to view detailed information. 3. Navigate to the Load Balancer Details page.
4. Click the Connected Resources tab on the Load Balancer Details page.
5. Click the Listener to edit the response header addition in the list of connected resources. 5. Navigate to the Listener Details page.
6. On the Listener Details page, click the Edit icon of the Add Response Header item. 6. Response Header Add/Edit The popup window opens.
7. After setting the header to insert, click the Confirm button.

   Category	required status	Detailed description
   HTTP Strict Transport Security (HSTS) header	Select	Select whether to insert the HSTS header (enforce HTTPS connections to enhance security) When enabled, set max-age and subdomain applicability max-age: Enter a value between 1 and 63072000 (up to 2 years) Subdomain applicability: enabled applies to all subdomains

   Table. Response Header Add/Modify Items

Delete Listener

To delete an unused Listener, follow these steps.

1. All Services > Networking > Load Balancer menu, click it. 1. Navigate to the Load Balancer’s Service Home page.
2. On the Service Home page, click the Load Balancer menu. 2. Go to the Load Balancer List page.
3. On the Load Balancer List page, click the Load Balancer resource from which you want to delete the Listener. 3. Navigate to the Load Balancer Details page.
4. On the Load Balancer Details page, click the Connected Resources tab. 4. Go to the Connected Resources tab page.
5. On the Connected Resources tab page, click the Listener you want to delete. 5. Go to the Listener Details page.
6. On the Listener Details page, click the Delete Listener button.

Terminate Load Balancer

You can terminate unused Load Balancers to reduce costs. However, because it may impact the application service, please request termination only after a thorough prior review.

To cancel the Load Balancer, follow the steps below.

1. All Services > Networking > Load Balancer click the menu. 1. Go to the Load Balancer’s Service Home page.
2. On the Service Home page, click the Load Balancer menu. 2. Go to the Load Balancer list page.
3. Load Balancer List page, click the resource to terminate. 3. Go to the Load Balancer Details page.
4. On the Load Balancer Details page, click the Cancel Service button.
5. After termination is complete, verify the resource termination status in the Load Balancer list.