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@lazarofl
Created January 4, 2019 14:26
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{
"AWSTemplateFormatVersion": "2010-09-09",
"Description": "Autoscaling for .net Web application.",
"Parameters": {
"InstanceType": {
"Description": "WebServer EC2 instance type",
"Type": "String",
"Default": "m1.small",
"AllowedValues": [
"t1.micro",
"m1.small",
"m1.medium",
"m1.large",
"m1.xlarge",
"m2.xlarge",
"m2.2xlarge",
"m2.4xlarge",
"c1.medium",
"c1.xlarge",
"cc1.4xlarge",
"cc2.8xlarge",
"cg1.4xlarge"
],
"ConstraintDescription": "Must be a valid EC2 instance type."
},
"IamInstanceProfile": {
"Description": "Name of IAM Profile that will be used by instances to access AWS Services",
"Type": "String",
"Default": "YourProfileName"
},
"KeyName": {
"Description": "The EC2 Key Pair to allow access to the instances",
"Default": "yourkeypair",
"Type": "String"
},
"SpotPriceBid": {
"Description": "Max bid price of spot instances",
"Type": "String",
"Default": ".06"
},
"DeployS3Bucket": {
"Description": "The S3 Bucket where deploy files are stored",
"Type": "String",
"Default": "ApplicationBucket"
},
"DeployWebS3Key": {
"Description": "The zip file that holds the website",
"Type": "String",
"Default": "Application.zip"
},
"DNSHostedZone": {
"Type": "String",
"Default": "example.com.",
"AllowedPattern": "^[\\w\\.]*\\.$",
"ConstraintDescription": "DNSDomain must end with '.'"
},
"DNSSubDomain": {
"Type": "String",
"Default": "yoursubdomain"
}
},
"Mappings": {
"RegionToAMIMap": {
"us-east-1": {
"AMI": "ami-1234567"
}
}
},
"Resources": {
"IAMUser": {
"Type": "AWS::IAM::User",
"Properties": {
"Path": "/",
"Policies": [{
"PolicyName": "webuser",
"PolicyDocument": {
"Statement": [{
"Sid": "Stmt1353842250430",
"Action": [
"s3:GetObject"
],
"Effect": "Allow",
"Resource": [
"arn:aws:s3:::HelgaDogWeb*/*"
]
}, {
"Sid": "Stmt1353842327065",
"Action": [
"cloudformation:DescribeStackResource"
],
"Effect": "Allow",
"Resource": [
"*"
]
}
]
}
}
]
}
},
"IAMUserAccessKey": {
"Type": "AWS::IAM::AccessKey",
"Properties": {
"UserName": {
"Ref": "IAMUser"
}
}
},
"WebSecurityGroup": {
"Type": "AWS::EC2::SecurityGroup",
"Properties": {
"GroupDescription": "Enable Access From Elastic Load Balancer.",
"SecurityGroupIngress": [{
"IpProtocol": "tcp",
"FromPort": "443",
"ToPort": "443",
"SourceSecurityGroupOwnerId": {
"Fn::GetAtt": [
"WebLoadBalancer",
"SourceSecurityGroup.OwnerAlias"
]
},
"SourceSecurityGroupName": {
"Fn::GetAtt": [
"WebLoadBalancer",
"SourceSecurityGroup.GroupName"
]
}
}, {
"IpProtocol": "tcp",
"FromPort": "80",
"ToPort": "80",
"SourceSecurityGroupOwnerId": {
"Fn::GetAtt": [
"WebLoadBalancer",
"SourceSecurityGroup.OwnerAlias"
]
},
"SourceSecurityGroupName": {
"Fn::GetAtt": [
"WebLoadBalancer",
"SourceSecurityGroup.GroupName"
]
}
}
]
}
},
"WebLoadBalancer": {
"Type": "AWS::ElasticLoadBalancing::LoadBalancer",
"Properties": {
"Listeners": [{
"InstancePort": "443",
"InstanceProtocol": "HTTPS",
"LoadBalancerPort": "443",
"Protocol": "HTTPS",
"SSLCertificateId": "arn:aws:iam::123456789101:server-certificate/example"
}
],
"AvailabilityZones": {
"Fn::GetAZs": ""
},
"HealthCheck": {
"HealthyThreshold": "3",
"Interval": "30",
"Target": "HTTP:80/healthcheck.aspx",
"Timeout": 8,
"UnhealthyThreshold": "2"
}
}
},
"WebAsSpotLaunchConfiguration": {
"Type": "AWS::AutoScaling::LaunchConfiguration",
"Metadata": {
"AWS::CloudFormation::Init": {
"config": {
"sources": {
"C:\\inetpub\\wwwroot": {
"Fn::Join": [
"/",
[
"http://s3.amazonaws.com", {
"Ref": "DeployS3Bucket"
}, {
"Ref": "DeployWebS3Key"
}
]
]
}
},
"commands": {
"1-set-appPool-identity": {
"command": "C:\\Windows\\System32\\inetsrv\\appcmd set config /section:applicationPools /[name='DefaultAppPool'].processModel.identityType:LocalSystem",
"waitAfterCompletion": "0"
},
"2-add-http-binding": {
"command": "C:\\Windows\\System32\\inetsrv\\appcmd set site /site.name:\"Default Web Site\" /+bindings.[protocol='http',bindingInformation='*:80:']",
"waitAfterCompletion": "0"
}
}
}
},
"AWS::CloudFormation::Authentication": {
"S3AccessCreds": {
"type": "S3",
"accessKeyId": {
"Ref": "IAMUserAccessKey"
},
"secretKey": {
"Fn::GetAtt": [
"IAMUserAccessKey",
"SecretAccessKey"
]
},
"buckets": [{
"Ref": "DeployS3Bucket"
}
]
}
}
},
"Properties": {
"KeyName": {
"Ref": "KeyName"
},
"ImageId": {
"Fn::FindInMap": [
"RegionToAMIMap", {
"Ref": "AWS::Region"
},
"AMI"
]
},
"IamInstanceProfile": {
"Ref": "IamInstanceProfile"
},
"SecurityGroups": [{
"Ref": "WebSecurityGroup"
}
],
"InstanceType": {
"Ref": "InstanceType"
},
"SpotPrice": {
"Ref": "SpotPriceBid"
},
"UserData": {
"Fn::Base64": {
"Fn::Join": [
"",
[
"<script>\n",
"\"C:\\Program Files (x86)\\Amazon\\cfn-bootstrap\\cfn-init.exe\" -v -s ", {
"Ref": "AWS::StackName"
},
" -r WebAsSpotLaunchConfiguration ",
" --access-key ", {
"Ref": "IAMUserAccessKey"
},
" --secret-key ", {
"Fn::GetAtt": [
"IAMUserAccessKey",
"SecretAccessKey"
]
},
"\n",
"</script>"
]
]
}
}
}
},
"WebAsSpotGroup": {
"Type": "AWS::AutoScaling::AutoScalingGroup",
"Properties": {
"AvailabilityZones": {
"Fn::GetAZs": ""
},
"HealthCheckGracePeriod": "120",
"HealthCheckType": "EC2",
"LaunchConfigurationName": {
"Ref": "WebAsSpotLaunchConfiguration"
},
"LoadBalancerNames": [{
"Ref": "WebLoadBalancer"
}
],
"MaxSize": "20",
"MinSize": "1",
"DesiredCapacity": "1"
}
},
"WebAsSpotScaleUpPolicy": {
"Type": "AWS::AutoScaling::ScalingPolicy",
"Properties": {
"AdjustmentType": "PercentChangeInCapacity",
"AutoScalingGroupName": {
"Ref": "WebAsSpotGroup"
},
"Cooldown": "420",
"ScalingAdjustment": "200"
}
},
"WebAsSpotScaleDownPolicy": {
"Type": "AWS::AutoScaling::ScalingPolicy",
"Properties": {
"AdjustmentType": "ChangeInCapacity",
"AutoScalingGroupName": {
"Ref": "WebAsSpotGroup"
},
"Cooldown": "60",
"ScalingAdjustment": "-1"
}
},
"WebAsSpotScaleUpAlarm": {
"Type": "AWS::CloudWatch::Alarm",
"Properties": {
"MetricName": "CPUUtilization",
"Namespace": "AWS/EC2",
"Statistic": "Average",
"Period": "60",
"EvaluationPeriods": "1",
"Threshold": "75",
"AlarmActions": [{
"Ref": "WebAsSpotScaleUpPolicy"
}
],
"Dimensions": [{
"Name": "AutoScalingGroupName",
"Value": {
"Ref": "WebAsSpotGroup"
}
}
],
"ComparisonOperator": "GreaterThanThreshold"
}
},
"WebAsSpotScaleDownAlarm": {
"Type": "AWS::CloudWatch::Alarm",
"Properties": {
"MetricName": "CPUUtilization",
"Namespace": "AWS/EC2",
"Statistic": "Average",
"Period": "60",
"EvaluationPeriods": "2",
"Threshold": "50",
"AlarmActions": [{
"Ref": "WebAsSpotScaleDownPolicy"
}
],
"Dimensions": [{
"Name": "AutoScalingGroupName",
"Value": {
"Ref": "WebAsSpotGroup"
}
}
],
"ComparisonOperator": "LessThanThreshold"
}
},
"DNSRecord": {
"Type": "AWS::Route53::RecordSet",
"Properties": {
"HostedZoneName": {
"Ref": "DNSHostedZone"
},
"Comment": "VPN Host. Created by Cloud Formation.",
"Name": {
"Fn::Join": [
".",
[{
"Ref": "DNSSubDomain"
}, {
"Ref": "DNSHostedZone"
}
]
]
},
"Type": "CNAME",
"TTL": "150",
"ResourceRecords": [{
"Fn::GetAtt": [
"WebLoadBalancer",
"CanonicalHostedZoneName"
]
}
]
},
"DependsOn": "WebLoadBalancer"
}
},
"Outputs": {}
}
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