Get actioncreateloadbalancer — elasticloadbalancing

v1

latestOpenAPI 3.0.0Apache 2.0 License2026-07-1458181172.5 KB

Creates a Classic Load Balancer.

You can add listeners, security groups, subnets, and tags when you create your load balancer, or you can add them later using CreateLoadBalancerListeners, ApplySecurityGroupsToLoadBalancer, AttachLoadBalancerToSubnets, and AddTags.

To describe your current load balancers, see DescribeLoadBalancers. When you are finished with a load balancer, you can delete it using DeleteLoadBalancer.

You can create up to 20 load balancers per region per account. You can request an increase for the number of load balancers for your account. For more information, see Limits for Your Classic Load Balancer in the Classic Load Balancers Guide.

get/#Action=CreateLoadBalancer

Query parameters

LoadBalancerNamestring required

The name of the load balancer. This name must be unique within your set of load balancers for the region, must have a maximum of 32 characters, must contain only alphanumeric characters or hyphens, and cannot begin or end with a hyphen.

Protocolstring required

The load balancer transport protocol to use for routing: HTTP, HTTPS, TCP, or SSL.

LoadBalancerPortinteger required

The port on which the load balancer is listening. On EC2-VPC, you can specify any port from the range 1-65535. On EC2-Classic, you can specify any port from the following list: 25, 80, 443, 465, 587, 1024-65535.

InstanceProtocolstring

The protocol to use for routing traffic to instances: HTTP, HTTPS, TCP, or SSL. If the front-end protocol is TCP or SSL, the back-end protocol must be TCP or SSL. If the front-end protocol is HTTP or HTTPS, the back-end protocol must be HTTP or HTTPS. If there is another listener with the same <code>InstancePort</code> whose <code>InstanceProtocol</code> is secure, (HTTPS or SSL), the listener's <code>InstanceProtocol</code> must also be secure. If there is another listener with the same <code>InstancePort</code> whose <code>InstanceProtocol</code> is HTTP or TCP, the listener's <code>InstanceProtocol</code> must be HTTP or TCP.

InstancePortinteger required

The port on which the instance is listening.

SSLCertificateIdstring

The Amazon Resource Name (ARN) of the server certificate.

The listeners. For more information, see <a href="https://docs.aws.amazon.com/elasticloadbalancing/latest/classic/elb-listener-config.html">Listeners for Your Classic Load Balancer</a> in the Classic Load Balancers Guide.

AvailabilityZonesAvailabilityZone[]

One or more Availability Zones from the same region as the load balancer. You must specify at least one Availability Zone. You can add more Availability Zones after you create the load balancer using <a>EnableAvailabilityZonesForLoadBalancer</a>.

SubnetsSubnetId[]

The IDs of the subnets in your VPC to attach to the load balancer. Specify one subnet per Availability Zone specified in <code>AvailabilityZones</code>.

SecurityGroupsSecurityGroupId[]

The IDs of the security groups to assign to the load balancer.

Schemestring

The type of a load balancer. Valid only for load balancers in a VPC. By default, Elastic Load Balancing creates an Internet-facing load balancer with a DNS name that resolves to public IP addresses. For more information about Internet-facing and Internal load balancers, see <a href="https://docs.aws.amazon.com/elasticloadbalancing/latest/userguide/how-elastic-load-balancing-works.html#load-balancer-scheme">Load Balancer Scheme</a> in the Elastic Load Balancing User Guide. Specify <code>internal</code> to create a load balancer with a DNS name that resolves to private IP addresses.

Keystring required

The key of the tag.

Valuestring

The value of the tag.

A list of tags to assign to the load balancer. For more information about tagging your load balancer, see <a href="https://docs.aws.amazon.com/elasticloadbalancing/latest/classic/add-remove-tags.html">Tag Your Classic Load Balancer</a> in the Classic Load Balancers Guide.

Action'CreateLoadBalancer' required

Version'2012-06-01' required

Response

Success