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# Cuplikan templat Elastic Load Balancing
<a name="quickref-elb"></a>

Untuk membuat Application Load Balancer, Network Load Balancer, atau Load Balancer Gateway, gunakan jenis sumber daya V2, yang dimulai dengan. `AWS::ElasticLoadBalancingV2` Untuk membuat Classic Load Balancer, gunakan jenis sumber daya yang dimulai dengan. `AWS::ElasticLoadBalancing`

**Topics**
+ [ELBv2 sumber daya](#scenario-elbv2-load-balancer)
+ [Sumber daya Classic Load Balancer](#scenario-elb-load-balancer)

## ELBv2 sumber daya
<a name="scenario-elbv2-load-balancer"></a>

Contoh ini mendefinisikan Application Load Balancer dengan pendengar HTTP dan tindakan default yang meneruskan lalu lintas ke grup target. Penyeimbang beban menggunakan pengaturan pemeriksaan kesehatan default. Kelompok sasaran memiliki dua EC2 contoh terdaftar. 

------
#### [ YAML ]

```
Resources:
  myLoadBalancer:
    Type: AWS::ElasticLoadBalancingV2::LoadBalancer
    Properties:
      Name: my-alb
      Type: application
      Scheme: internal
      Subnets: 
        - !Ref subnet-AZ1
        - !Ref subnet-AZ2
      SecurityGroups: 
        - !Ref mySecurityGroup

  myHTTPlistener:
    Type: AWS::ElasticLoadBalancingV2::Listener
    Properties:
      LoadBalancerArn: !Ref myLoadBalancer
      Protocol: HTTP
      Port: 80
      DefaultActions:
        - Type: "forward"
          TargetGroupArn: !Ref myTargetGroup
                        
  myTargetGroup:
    Type: AWS::ElasticLoadBalancingV2::TargetGroup
    Properties:
      Name: "my-target-group"
      Protocol: HTTP
      Port: 80
      TargetType: instance
      VpcId: !Ref myVPC
      Targets:
        - Id: !GetAtt Instance1.InstanceId
          Port: 80
        - Id: !GetAtt Instance2.InstanceId
          Port: 80
```

------
#### [ JSON ]

```
{
    "Resources": {
        "myLoadBalancer": {
            "Type": "AWS::ElasticLoadBalancingV2::LoadBalancer",
            "Properties": {
                "Name": "my-alb",
                "Type": "application",
                "Scheme": "internal",
                "Subnets": [
                    {
                        "Ref": "subnet-AZ1"
                    },
                    {
                        "Ref": "subnet-AZ2"
                    }
                ],
                "SecurityGroups": [
                    {
                        "Ref": "mySecurityGroup"
                    }
                ]
            }
        },
        "myHTTPlistener": {
            "Type": "AWS::ElasticLoadBalancingV2::Listener",
            "Properties": {
                "LoadBalancerArn": {
                    "Ref": "myLoadBalancer"
                },
                "Protocol": "HTTP",
                "Port": 80,
                "DefaultActions": [
                    {
                        "Type": "forward",
                        "TargetGroupArn": {
                            "Ref": "myTargetGroup"
                        }
                    }
                ]
            }
        },
        "myTargetGroup": {
            "Type": "AWS::ElasticLoadBalancingV2::TargetGroup",
            "Properties": {
                "Name": "my-target-group",
                "Protocol": "HTTP",
                "Port": 80,
                "TargetType": "instance",
                "VpcId": {
                    "Ref": "myVPC"
                },
                "Targets": [
                    {
                        "Id": {
                            "Fn::GetAtt": [
                                "Instance1",
                                "InstanceId"
                            ]
                        },
                        "Port": 80
                    },
                    {
                        "Id": {
                            "Fn::GetAtt": [
                                "Instance2",
                                "InstanceId"
                            ]
                        },
                        "Port": 80
                    }
                ]
            }
        }
    }
}
```

------

## Sumber daya Classic Load Balancer
<a name="scenario-elb-load-balancer"></a>

Contoh ini mendefinisikan Classic Load Balancer dengan pendengar HTTP dan tidak ada instance terdaftar. EC2 Penyeimbang beban menggunakan pengaturan pemeriksaan kesehatan default.

------
#### [ YAML ]

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

------
#### [ JSON ]

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

------

Contoh ini mendefinisikan Classic Load Balancer dengan pendengar HTTP, dua instance EC2 terdaftar, dan setelan pemeriksaan kesehatan khusus.

------
#### [ YAML ]

```
myClassicLoadBalancer:
  Type: AWS::ElasticLoadBalancing::LoadBalancer
  Properties:
    AvailabilityZones:
    - "us-east-1a"
    Instances:
    - Ref: Instance1
    - Ref: Instance2
    Listeners:
    - LoadBalancerPort: '80'
      InstancePort: '80'
      Protocol: HTTP
    HealthCheck:
      Target: HTTP:80/
      HealthyThreshold: '3'
      UnhealthyThreshold: '5'
      Interval: '30'
      Timeout: '5'
```

------
#### [ JSON ]

```
"myClassicLoadBalancer" : {
    "Type" : "AWS::ElasticLoadBalancing::LoadBalancer",
    "Properties" : {
        "AvailabilityZones" : [ "us-east-1a" ],
        "Instances" : [
            { "Ref" : "Instance1" },
            { "Ref" : "Instance2" }
        ],
        "Listeners" : [ {
            "LoadBalancerPort" : "80",
            "InstancePort" : "80",
            "Protocol" : "HTTP"
        } ],

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

------