Create and manage ALB

Application Load Balancer (ALB) handles traffic at the application layer, which is layer 7 of the OSI model. ALB Listeners can use the HTTP or HTTPS protocol and connect to a single default target group..
In addition to the default target group, each listener can also add ALB rules to set up routing based on rules.

Create load balancer

Follow these steps to create a load balancer:

1. Go to KakaoCloud Console > Beyond Networking Service > Load Balancing > Load Balancer.

2. Click the [Create load balancer] button at the top right corner.

3. In the Create load balancer screen, select the ALB(Application Load Balancer) type.

   Create load balancer

   Category	Item	Description
   Basic information	Load balancer name	Enter the name of the load balancer
   	Description (optional)	0-100 characters
   Network	VPC	Select from available VPCs in the project
   	Subnet	Provide a list of Subnets from the selected VPC
   Listener	Protocol	HTTP, HTTPS
   	Port	Enter a value between 1 and 65535
   	Min TLS version	Appears only when HTTPS is selected. - Choose one from TLSv1.2, TLSv1.1, TLSv1.2
   	Default SSL certificate	Appears only when HTTPS is selected. - Select a registered certificate or register a new certificate

4. After entering the configuration values, click the [Create] button.

View load balancer list

1. Go to KakaoCloud Console > Beyond Networking Service > Load Balancing > Load Balancer.

2. Check the list of load balancers.

   Category	Description
   Name	The name assigned at creation
   Provisioning status	Information on whether the load balancer has been successfully created or is in the process of being modified or deleted
   Operating status	Information on whether the created load balancer is available for use
   Type	Application or Network
   Private IP	The automatically assigned private IP address for the load balancer
   Public IP	The public IP address assigned by the user
   VPC	The VPC containing the load balancer
   AZ	The availability zone selected during creation
   Created at	The date the load balancer was created
   [More] icon	Provides options for renaming, connecting/disconnecting public IP, configuring access log, and deleting

View load balancer details

1. Go to KakaoCloud Console > Beyond Networking Service > Load Balancing > Load Balancer.

2. Select a load balancer.

3. In the detail view, you can check the details, listeners, and monitoring information on each tab.

   Tab	Description
   Details	View detailed information of the load balancer
   Listener	View the list of added listeners and their details
   Monitoring	View monitoring results for up to 7 days - Inbound traffic (bytes/sec): The amount of network traffic incoming to the listener - Outbound traffic (bytes/sec): The amount of network traffic outgoing from the listener - CPS (Connections Per Second): The number of connections per second handled by the listener - Concurrent Session: The number of sessions maintained by the listener simultaneously

Rename load balancer

1. Go to KakaoCloud Console > Beyond Networking Service > Load Balancing > Load Balancer.
2. Select a load balancer on Load Balancer tab, and then click [More] icon > Rename.
3. In the popup, change the name or description and click the [Apply] button.

Associate public IP

1. Go to KakaoCloud Console > Beyond Networking Service > Load Balancing > Load Balancer.
2. Select a load balancer on the Load Balancer tab, and then click [More] icon > Associate public IP.
3. In the popup, configure the options and click the [Apply] button.

Disassociate public IP

1. Go to KakaoCloud Console > Beyond Networking Service > Load Balancing > Load Balancer.
2. Select a load balancer on the Load Balancer, and then click [More] icon > Disassociate public IP.
3. In the popup, select whether to delete the public IP and click the [Disassociate] button.

Configure access log

Access log is an optional feature that is disabled by default. Here’s how to enable or disable access log.

Enable access log

Follow these steps to enable access log.

1. Go to KakaoCloud Console > Beyond Networking Service > Load Balancing > Load Balancer.

2. Select a load balancer on the Load Balancer, and then click [More] icon > Configure access log.

3. In the popup, change the state to [Enabled].

4. Select the bucket to store access logs.

   • You can set whether to use encryption for the selected bucket. For security, it is recommended to select Encryption enabled. For more information on creating Object Storage buckets, refer to Object Storage > Create and manage buckets.

5. Select the access key ID. The selected access key ID must be set to not have an expiration date. For details, refer to Get access key.

   info

   • When creating an access key, keep the secret access key separately.
   • Enabling access log will incur bucket usage charges for log storage. In this case, you can set the access log retention period through the bucket's life cycle settings. For more information, refer to Object Storage > Configure life cycle.

6. Enter the secret access key that pairs with the Access key ID and click the [Apply] button.

Disable access log

Follow these steps to disable access log.

1. Go to KakaoCloud Console > Beyond Networking Service > Load Balancing > Load Balancer.
2. Select a load balancer on the Load Balancer, and then click [More] icon > Configure access log.
3. In the popup, change the state.

Delete load balancer

1. Go to KakaoCloud Console > Beyond Networking Service > Load Balancing > Load Balancer.
2. Select a load balancer on the Load Balancer, and then click [More] icon > Delete load balancer.
3. Click the [Delete] button.