json - 模板无效 : Invalid template resource property 'WebServerScaleUpPolicy'

Question

{
    "AWSTemplateFormatVersion": "2010-09-09",

    "Parameters": {
        "VpcId": {
            "Type": "AWS::EC2::VPC::Id",
            "Description": "VpcId of your existing Virtual Private Cloud (VPC)",
            "ConstraintDescription": "must be the VPC Id of an existing Virtual Private Cloud."
        },
        "Subnets": {
            "Type": "List<AWS::EC2::Subnet::Id>",
            "Description": "The list of SubnetIds in your Virtual Private Cloud (VPC)"
        },
        "InstanceType": {
            "Description": "WebServer EC2 instance type",
            "Type": "String",
            "Default": "t2.small",
            "AllowedValues": [
                "t1.micro",
                "t2.nano",
                "t2.micro",
                "t2.small",
                "t2.medium",
                "t2.large",
                "m1.small",
                "m1.medium",
                "cg1.4xlarge"
            ],
            "ConstraintDescription": "must be a valid EC2 instance type."
        },
         "KeyName": {
            "Description": "The EC2 Key Pair to allow SSH access to the instances",
            "Type": "AWS::EC2::KeyPair::KeyName",
            "ConstraintDescription": "must be the name of an existing EC2 KeyPair."
        },
        "SSHLocation": {
            "Description": "The IP address range that can be used to SSH to the EC2 instances",
            "Type": "String",
            "MinLength": "9",
            "MaxLength": "18",
            "Default": "0.0.0.0/0",
            "AllowedPattern": "(\\d{1,3})\\.(\\d{1,3})\\.(\\d{1,3})\\.(\\d{1,3})/(\\d{1,2})",
            "ConstraintDescription": "must be a valid IP CIDR range of the form x.x.x.x/x."
        }
    },
    "Mappings": {
        "AWSInstanceType2Arch": {
            "t1.micro": {
                "Arch": "HVM64"
            },
            "t2.nano": {
                "Arch": "HVM64"
            },
            "t2.micro": {
                "Arch": "HVM64"
            },
            "t2.small": {
                "Arch": "HVM64"
            },
            "t2.medium": {
                "Arch": "HVM64"
            },
            "t2.large": {
                "Arch": "HVM64"
            },
            "m1.small": {
                "Arch": "HVM64"
            },
            "m1.medium": {
                "Arch": "HVM64"
            },
            "m1.large": {
                "Arch": "HVM64"
            },
            "d2.xlarge": {
                "Arch": "HVM64"
            }
           },
        "AWSInstanceType2NATArch": {
            "t1.micro": {
                "Arch": "NATHVM64"
            },
            "t2.nano": {
                "Arch": "NATHVM64"
            },
            "t2.micro": {
                "Arch": "NATHVM64"
            },
            "t2.small": {
                "Arch": "NATHVM64"
            },
            "t2.medium": {
                "Arch": "NATHVM64"
            },
            "t2.large": {
                "Arch": "NATHVM64"
            },
            "m1.small": {
                "Arch": "NATHVM64"
            }
        },
        "AWSRegionArch2AMI": {
            
        }
    },
    "Resources": {
        "WebServerGroup": {
            "Type": "AWS::AutoScaling::AutoScalingGroup",
            "Properties": {
                "VPCZoneIdentifier": {
                    "Ref": "Subnets"
                },
                "LaunchConfigurationName": {
                    "Ref": "LaunchConfig"
                },
                "MinSize": "1",
                "MaxSize": "8",
                "TargetGroupARNs": [
                    {
                        "Ref": "ALBTargetGroup"
                    }
                ]
            },
            "CreationPolicy": {
                "ResourceSignal": {
                    "Timeout": "PT15M",
                    "Count": "1"
                }
            },
            "UpdatePolicy": {
                "AutoScalingRollingUpdate": {
                    "MinInstancesInService": "1",
                    "MaxBatchSize": "1",
                    "PauseTime": "PT15M",
                    "WaitOnResourceSignals": "true"
                }
            }
        },
        "LaunchConfig": {
            "Type": "AWS::AutoScaling::LaunchConfiguration",
            "Properties": {
                "KeyName": { "Ref": "KeyName" },
                "ImageId": "ami-00932e4c143f3fdf0",
                "SecurityGroups" : [ { "Ref" : "InstanceSecurityGroup" } ],
                "InstanceType" : { "Ref" : "InstanceType" }
                },
        "WebServerScaleUpPolicy": {
            "Type": "AWS::AutoScaling::ScalingPolicy",
            "Properties": {
                "AdjustmentType": "ChangeInCapacity",
                "AutoScalingGroupName": {
                    "Ref": "WebServerGroup"
                },
                "Cooldown": "60",
                "ScalingAdjustment": "1"
            }
        },
        "WebServerScaleDownPolicy": {
            "Type": "AWS::AutoScaling::ScalingPolicy",
            "Properties": {
                "AdjustmentType": "ChangeInCapacity",
                "AutoScalingGroupName": {
                    "Ref": "WebServerGroup"
                },
                "Cooldown": "60",
                "ScalingAdjustment": "-1"
            }
        },
        "CPUAlarmHigh": {
            "Type": "AWS::CloudWatch::Alarm",
            "Properties": {
                "AlarmDescription": "Scale-up if CPU > 70% for 5 minutes",
                "MetricName": "CPUUtilization",
                "Namespace": "AWS/EC2",
                "Statistic": "Average",
                "Period": "300",
                "EvaluationPeriods": "2",
                "Threshold": "70",
                "AlarmActions": [
                    {
                        "Ref": "WebServerScaleUpPolicy"
                    }
                ],
                "Dimensions": [
                    {
                        "Name": "AutoScalingGroupName",
                        "Value": {
                            "Ref": "WebServerGroup"
                        }
                    }
                ],
                "ComparisonOperator": "GreaterThanThreshold"
            }
        },
        "CPUAlarmLow": {
            "Type": "AWS::CloudWatch::Alarm",
            "Properties": {
                "AlarmDescription": "Scale-down if CPU < 40% for 5 minutes",
                "MetricName": "CPUUtilization",
                "Namespace": "AWS/EC2",
                "Statistic": "Average",
                "Period": "300",
                "EvaluationPeriods": "2",
                "Threshold": "40",
                "AlarmActions": [
                    {
                        "Ref": "WebServerScaleDownPolicy"
                    }
                ],
                "Dimensions": [
                    {
                        "Name": "AutoScalingGroupName",
                        "Value": {
                            "Ref": "WebServerGroup"
                        }
                    }
                ],
                "ComparisonOperator": "LessThanThreshold"
            }
        },
        "ApplicationLoadBalancer": {
            "Type": "AWS::ElasticLoadBalancingV2::LoadBalancer",
            "Properties": {
                "Subnets": {
                    "Ref": "Subnets"
                }
            }
        },
        "ALBListener": {
            "Type": "AWS::ElasticLoadBalancingV2::Listener",
            "Properties": {
                "DefaultActions": [
                    {
                        "Type": "forward",
                        "TargetGroupArn": {
                            "Ref": "ALBTargetGroup"
                        }
                    }
                ],
                "LoadBalancerArn": {
                    "Ref": "ApplicationLoadBalancer"
                },
                "Port": "80",
                "Protocol": "HTTP"
            }
        },
        "ALBTargetGroup": {
            "Type": "AWS::ElasticLoadBalancingV2::TargetGroup",
            "Properties": {
                "HealthCheckIntervalSeconds": 30,
                "HealthCheckTimeoutSeconds": 5,
                "HealthyThresholdCount": 3,
                "Port": 80,
                "Protocol": "HTTP",
                "UnhealthyThresholdCount": 5,
                "VpcId": {
                    "Ref": "VpcId"
                }
            }
        },
        "InstanceSecurityGroup": {
            "Type": "AWS::EC2::SecurityGroup",
            "Properties": {
                "GroupDescription": "Enable SSH access and HTTP from the load balancer only",
                "SecurityGroupIngress": [
                    {
                        "IpProtocol": "tcp",
                        "FromPort": "22",
                        "ToPort": "22",
                        "CidrIp": {
                            "Ref": "SSHLocation"
                        }
                    },
                    {
                        "IpProtocol": "tcp",
                        "FromPort": "80",
                        "ToPort": "80",
                        "SourceSecurityGroupId": {
                            "Fn::Select": [
                                0,
                                {
                                    "Fn::GetAtt": [
                                        "ApplicationLoadBalancer",
                                        "SecurityGroups"
                                    ]
                                }
                            ]
                        }
                    }
                ],
                "VpcId": {
                    "Ref": "VpcId"
                }
            }
        }
    },
    "Outputs": {
        "URL": {
            "Description": "The URL of the website",
            "Value": {
                "Fn::Join": [
                    "",
                    [
                        "http://",
                        {
                            "Fn::GetAtt": [
                                "ApplicationLoadBalancer",
                                "DNSName"
                            ]
                        }
                    ]
                ]
            }
        }
    }
}
}

嗨，这是我使用负载均衡器自动缩放的模板，并且我还附加了带有向上/向下扩展策略的 CPU 警报，但每当我要创建堆栈时，我都会收到错误，即无效的模板资源属性“WebServerScaleUpPolicy” 。所以请让我知道我在这方面的不足。

请帮帮我。 {AWS CloudFormation 模板 AutoScalingMultiAZ:创建在 nginx Web 服务器上运行的多可用区、负载均衡和 Auto Scaled 示例网站。该应用程序配置为跨越该区域的所有可用区，并根据 Web 服务器的 CPU 利用率自动缩放。

通过针对默认网页的简单运行状况检查来实现实例的负载平衡。

Answer 1

“LaunchConfig”末尾缺少 }

 "LaunchConfig": {
            "Type": "AWS::AutoScaling::LaunchConfiguration",
            "Properties": {
                "KeyName": { "Ref": "KeyName" },
                "ImageId": "ami-00932e4c143f3fdf0",
                "SecurityGroups" : [ { "Ref" : "InstanceSecurityGroup" } ],
                "InstanceType" : { "Ref" : "InstanceType" }
                }
            }, <---
        "WebServerScaleUpPolicy": {
            "Type": "AWS::AutoScaling::ScalingPolicy",
            "Properties": {
                "AdjustmentType": "ChangeInCapacity",
                "AutoScalingGroupName": {
                    "Ref": "WebServerGroup"
                },
                "Cooldown": "60",
                "ScalingAdjustment": "1"
            }
        },