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layout	page_title	sidebar_current	description
aws	AWS: aws_alb	docs-aws-resource-alb	Provides an Application Load Balancer resource.

aws_alb

Provides an Application Load Balancer resource.

Example Usage

# Create a new load balancer
resource "aws_alb" "test" {
  name            = "test-alb-tf"
  internal        = false
  security_groups = ["${aws_security_group.alb_sg.id}"]
  subnets         = ["${aws_subnet.public.*.id}"]

  enable_deletion_protection = true

  access_logs {
    bucket = "${aws_s3_bucket.alb_logs.bucket}"
    prefix = "test-alb"
  }

  tags {
    Environment = "production"
  }
}

Argument Reference

The following arguments are supported:

name - (Optional) The name of the ALB. This name must be unique within your AWS account, can have a maximum of 32 characters, must contain only alphanumeric characters or hyphens, and must not begin or end with a hyphen. If not specified, Terraform will autogenerate a name beginning with tf-lb.
name_prefix - (Optional) Creates a unique name beginning with the specified prefix. Conflicts with name.
internal - (Optional) If true, the ALB will be internal.
security_groups - (Optional) A list of security group IDs to assign to the ELB.
access_logs - (Optional) An Access Logs block. Access Logs documented below.
subnets - (Required) A list of subnet IDs to attach to the ELB.
idle_timeout - (Optional) The time in seconds that the connection is allowed to be idle. Default: 60.
enable_deletion_protection - (Optional) If true, deletion of the load balancer will be disabled via the AWS API. This will prevent Terraform from deleting the load balancer.
tags - (Optional) A mapping of tags to assign to the resource.

Access Logs (access_logs) support the following:

bucket - (Required) The S3 bucket name to store the logs in.
prefix - (Optional) The S3 bucket prefix. Logs are stored in the root if not configured.

Attributes Reference

The following attributes are exported in addition to the arguments listed above:

id - The ARN of the load balancer (matches arn)
arn - The ARN of the load balancer (matches id)
dns_name - The DNS name of the load balancer
canonical_hosted_zone_id - The canonical hosted zone ID of the load balancer.
zone_id - The canonical hosted zone ID of the load balancer (to be used in a Route 53 Alias record)

Import

ALBs can be imported using their ARN, e.g.

$ terraform import aws_alb.bar arn:aws:elasticloadbalancing:us-west-2:123456789012:loadbalancer/app/my-load-balancer/50dc6c495c0c9188

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