Load Balancers & Auto Scaling: Application Load Balancer

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Configuration to create an Application Load Balancer (ALB), target groups and listeners in an AWS VPC to load balance incoming traffic to targets such as EC2 instances or Lambda functions. The ALB also includes health checks to ensure the state of the targets before forwarding traffic.

This template includes settings for configuring:

Load balancer Name and Schema (Internet vs Internal)
Network settings such as Security Groups and Subnets
Deletion Protection to prevent the load balancer from being deleted accidentally
Enabling S3 Access Logging to log requests processed by the load balancer
Target Groups to configure the destination for the load balancer:
- Target Type can be an EC2 instance, IP address or a Lambda function and Target Id
- Protocol, Protocol Version, and Port
- If HTTPS is selected, then SSL policy and Certifiacte ARN must be provided
- Health Check settings such as path, interval, etc.
Listeners to specify the ports the load balancer accepts connections on:
- Protocol and Port number
- Actions such as Forward, Fixed-Response or Redirect
Load Balancer Attributes such as Idle timeout, Desync mitigation mode, WAF fail open, Client Port Preservation, and more

Items

Size

0.9 KB

Missing Parameters

YAML/JSON

AWSTemplateFormatVersion: '2010-09-09'
Description: ''
Resources:
  ApplicationLoadBalancer:
    Type: 'AWS::ElasticLoadBalancingV2::LoadBalancer'
    Properties:
      Type: application
      Scheme: internet-facing
      IpAddressType: ipv4
      LoadBalancerAttributes:
        - Key: deletion_protection.enabled
          Value: false
        - Key: access_logs.s3.enabled
          Value: false
        - Key: idle_timeout.timeout_seconds
          Value: 60
        - Key: routing.http.desync_mitigation_mode
          Value: defensive
        - Key: routing.http.drop_invalid_header_fields.enabled
          Value: false
        - Key: routing.http.x_amzn_tls_version_and_cipher_suite.enabled
          Value: false
        - Key: routing.http.xff_client_port.enabled
          Value: false
        - Key: routing.http2.enabled
          Value: true
        - Key: waf.fail_open.enabled
          Value: false
Parameters: {}
Metadata: {}
Conditions: {}

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Application Load Balancer

Actions

Customize Template

Load Balancer

Target Groups*

Listeners*