Elastic Load Balancing template snippets - Amazon CloudFormation
Elastic Load Balancing load balancer resourceElastic Load Balancing load balancer resource with health check
Services or capabilities described in Amazon Web Services documentation might vary by Region. To see the differences applicable to the China Regions, see Getting Started with Amazon Web Services in China (PDF).

Elastic Load Balancing template snippets

Elastic Load Balancing load balancer resource

This example shows an Elastic Load Balancing load balancer with a single listener, and no instances.

JSON

"MyLoadBalancer" : {
    "Type" : "AWS::ElasticLoadBalancing::LoadBalancer",
    "Properties" : {
        "AvailabilityZones" : [ "us-east-1a" ],
        "Listeners" : [ {
            "LoadBalancerPort" : "80",
            "InstancePort" : "80",
            "Protocol" : "HTTP"
        } ]
    }
}

YAML

MyLoadBalancer:
  Type: AWS::ElasticLoadBalancing::LoadBalancer
  Properties:
    AvailabilityZones:
    - "us-east-1a"
    Listeners:
    - LoadBalancerPort: '80'
      InstancePort: '80'
      Protocol: HTTP

Elastic Load Balancing load balancer resource with health check

This example shows an Elastic Load Balancing load balancer with two Amazon EC2 instances, a single listener and a health check.

JSON

"MyLoadBalancer" : {
    "Type" : "AWS::ElasticLoadBalancing::LoadBalancer",
    "Properties" : {
        "AvailabilityZones" : [ "us-east-1a" ],
        "Instances" : [
            { "Ref" : "logical name of AWS::EC2::Instance resource 1" },
            { "Ref" : "logical name of AWS::EC2::Instance resource 2" }
        ],
        "Listeners" : [ {
            "LoadBalancerPort" : "80",
            "InstancePort" : "80",
            "Protocol" : "HTTP"
        } ],

        "HealthCheck" : {
            "Target" : "HTTP:80/",
            "HealthyThreshold" : "3",
            "UnhealthyThreshold" : "5",
            "Interval" : "30",
            "Timeout" : "5"
        }
    }
}

YAML

MyLoadBalancer:
  Type: AWS::ElasticLoadBalancing::LoadBalancer
  Properties:
    AvailabilityZones:
    - "us-east-1a"
    Instances:
    - Ref: logical name of AWS::EC2::Instance resource 1
    - Ref: logical name of AWS::EC2::Instance resource 2
    Listeners:
    - LoadBalancerPort: '80'
      InstancePort: '80'
      Protocol: HTTP
    HealthCheck:
      Target: HTTP:80/
      HealthyThreshold: '3'
      UnhealthyThreshold: '5'
      Interval: '30'
      Timeout: '5'