CloudFormation 템플릿 Rules 구문
선택적 Rules 섹션에서 스택을 생성하거나 업데이트할 때 템플릿에 전달된 파라미터 또는 파라미터의 조합을 검증합니다. 템플릿 규칙을 사용하려면 어설션 다음에 템플릿에서 Rules를 명시적으로 선언합니다. 규칙 섹션을 사용하여 리소스를 생성하거나 업데이트하기 전에 파라미터 값을 검증합니다.
규칙 작업
각 템플릿 규칙은 두 가지 속성으로 구성됩니다.
-
규칙 조건(선택 사항) - 규칙을 적용하는 시점을 결정합니다.
-
어설션(필수) - 사용자가 특정 파라미터에 대해 지정할 수 있는 값을 설명합니다.
규칙에는 RuleCondition 속성이 포함될 수 있으며, Assertions 속성이 포함되어야 합니다. 각 규칙은 하나의 규칙 조건만 정의할 수 있습니다. Assertions 속성 안에서 하나 이상의 어설션을 정의할 수 있습니다. 규칙 조건을 정의하지 않은 경우, 규칙의 어설션이 항상 적용됩니다.
규칙별 내장 함수
규칙 조건과 어설션을 정의하려면 템플릿의 Rules 섹션에서만 사용할 수 있는 함수인 규칙 관련 내장 함수를 사용합니다. 함수를 중첩할 수 있지만, 규칙 조건 또는 어설션의 최종 결과가 true이거나 false여야 합니다.
다음 규칙 관련 내장 함수를 사용하여 규칙 조건과 어설션을 정의할 수 있습니다.
규칙별 내장 함수는 규칙의 조건 또는 어설션에서 사용합니다. 이 조건 속성은 CloudFormation이 어설션을 적용할지 여부를 결정합니다. 조건이 true로 평가되면 CloudFormation은 프로비저닝된 제품이 생성되거나 업데이트될 때 파라미터 값이 유효한지 여부를 확인하기 위해 어설션을 평가합니다. 파라미터 값이 유효하지 않으면 CloudFormation은 스택을 생성하거나 업데이트하지 않습니다. 조건이 false로 평가되면 CloudFormation은 파라미터 값을 확인하지 않고 스택 작업을 진행합니다.
구문
JSON
템플릿의 Rules 섹션은 키 이름 Rules와 그 뒤에 이어지는 콜론 하나로 구성됩니다. 모든 규칙 선언을 괄호로 묶어야 합니다. 규칙을 여러 개 선언할 경우 쉼표로 구분됩니다. 각 규칙에 대해 인용 부호 안의 논리적 이름과 그 뒤에 오는 콜론, 그리고 규칙 조건과 어설션을 묶는 중괄호를 선언합니다.
{
"Rules": {
"Rule01": {
"RuleCondition": {
"rule-specific intrinsic function": "Value01"
},
"Assertions": [
{
"Assert": {
"rule-specific intrinsic function": "Value02"
},
"AssertDescription": "Information about this assert"
},
{
"Assert": {
"rule-specific intrinsic function": "Value03"
},
"AssertDescription": "Information about this assert"
}
]
},
"Rule02": {
"Assertions": [
{
"Assert": {
"rule-specific intrinsic function": "Value04"
},
"AssertDescription": "Information about this assert"
}
]
}
}
}YAML
Rules:
Rule01:
RuleCondition:
rule-specific intrinsic function: Value01
Assertions:
- Assert:
rule-specific intrinsic function: Value02
AssertDescription: Information about this assert
- Assert:
rule-specific intrinsic function: Value03
AssertDescription: Information about this assert
Rule02:
Assertions:
- Assert:
rule-specific intrinsic function: Value04
AssertDescription: Information about this assert예시
조건부로 파라미터 값 확인
다음 예제에서는 규칙 두 개가 InstanceType 파라미터의 값을 검사합니다. 환경 파라미터(test 또는 prod)의 값에 따라 사용자는 InstanceType 파라미터에 대해 a1.medium 또는 a1.large를 지정해야 합니다. InstanceType 및 Environment 파라미터는 동일한 템플릿의 Parameters 섹션에서 선언해야 합니다.
예: JSON
{ "Rules": { "testInstanceType": { "RuleCondition": { "Fn::Equals": [ { "Ref": "Environment" }, "test" ] }, "Assertions": [ { "Assert": { "Fn::Contains": [ [ "a1.medium" ], { "Ref": "InstanceType" } ] }, "AssertDescription": "For a test environment, the instance type must be a1.medium" } ] }, "prodInstanceType": { "RuleCondition": { "Fn::Equals": [ { "Ref": "Environment" }, "prod" ] }, "Assertions": [ { "Assert": { "Fn::Contains": [ [ "a1.large" ], { "Ref": "InstanceType" } ] }, "AssertDescription": "For a production environment, the instance type must be a1.large" } ] } } }
예: YAML
Rules: testInstanceType: RuleCondition: !Equals - !Ref Environment - test Assertions: - Assert: 'Fn::Contains': - - a1.medium - !Ref InstanceType AssertDescription: 'For a test environment, the instance type must be a1.medium' prodInstanceType: RuleCondition: !Equals - !Ref Environment - prod Assertions: - Assert: 'Fn::Contains': - - a1.large - !Ref InstanceType AssertDescription: 'For a production environment, the instance type must be a1.large'
파라미터 간 검증
다음 템플릿 예제에서는 Amazon EC2 Auto Scaling과 Elastic Load Balancing을 사용하고 여러 가용 영역을 사용하도록 구성된 샘플 웹사이트를 생성합니다. 또한 이 템플릿에 포함된 CloudWatch 경보는 정의된 임계값을 초과할 때 조정 정책을 실행하여 Auto Scaling 그룹에 인스턴스를 추가하거나 제거합니다. 이 템플릿은 하나 이상의 Amazon EC2 인스턴스를 생성합니다.
참고
이 템플릿에서 스택을 생성할 경우 사용한 AWS 리소스에 대한 요금이 청구됩니다.
예: JSON
{ "AWSTemplateFormatVersion": "2010-09-09", "Description": "AWS CloudFormation Sample Template for using Assertions: Create a load balanced, Auto Scaled sample website where the instances are locked down to only accept traffic from the load balancer. This example creates an Auto Scaling group behind a load balancer with a health check. The web site is available on port 80 or 443 based on the input.", "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)", "ConstraintDescription": "must be a list of at least two existing subnets associated with at least two different availability zones. They should be residing in the selected Virtual Private Cloud." }, "InstanceType": { "Description": "WebServer EC2 instance type", "Type": "String", "Default": "t2.small", "AllowedValues": [ "t2.nano", "t2.micro", "t2.small", "t2.medium", "t2.large", "m4.large", "m4.xlarge", "m4.2xlarge", "m4.4xlarge", "m4.10xlarge", "m3.medium", "m3.large", "m3.xlarge", "m3.2xlarge", "c4.large", "c4.xlarge", "c4.2xlarge", "c4.4xlarge", "c4.8xlarge", "c3.large", "c3.xlarge", "c3.2xlarge", "c3.4xlarge", "c3.8xlarge", "r3.large", "r3.xlarge" ], "ConstraintDescription": "must be a valid EC2 instance type." }, "KeyName": { "Description": "Name of an existing EC2 KeyPair to enable 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." }, "UseSSL": { "AllowedValues": [ "Yes", "No" ], "ConstraintDescription": "Select Yes to create a HTTPS Listener", "Default": "No", "Description": "Select \"Yes\" to implement SSL, \"No\" to skip (default).", "Type": "String" }, "ALBSSLCertificateARN": { "Default": "", "Description": "[Optional] The ARN of the SSL certificate to be used for the Application Load Balancer", "Type": "String" }, "HostedZoneName": { "AllowedPattern": "^$|(([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9\\-]*[a-zA-Z0-9])\\.)*([A-Za-z0-9]|[A-Za-z0-9][A-Za-z0-9\\-]*[A-Za-z0-9])$", "Default": "", "Description": "[Optional] The domain name of a valid Hosted Zone on AWS.", "Type": "String" } }, "Conditions": { "UseALBSSL": { "Fn::Not": [ { "Fn::Equals": [ { "Ref": "UseSSL" }, "Yes" ] } ] } }, "Rules": { "SubnetsInVPC": { "Assertions": [ { "Assert": { "Fn::EachMemberEquals": [ { "Fn::ValueOf": [ "Subnets", "VpcId" ] }, { "Ref": "VpcId" } ] }, "AssertDescription": "All subnets must in the VPC" } ] }, "ValidateHostedZone": { "RuleCondition": { "Fn::Equals": [ { "Ref": "UseSSL" }, "Yes" ] }, "Assertions": [ { "Assert": { "Fn::Not": [ { "Fn::Equals": [ { "Ref": "ALBSSLCertificateARN" }, "" ] } ] }, "AssertDescription": "ACM Certificate value cannot be empty if SSL is required" }, { "Assert": { "Fn::Not": [ { "Fn::Equals": [ { "Ref": "HostedZoneName" }, "" ] } ] }, "AssertDescription": "Route53 Hosted Zone Name is mandatory when SSL is required" } ] } }, "Mappings": { "AWSAMIRegionMap": { "AMI": { "AMZNLINUXHVM": "amzn-ami-hvm-2017.09.1.20171120-x86_64-gp2" }, "ap-northeast-1": { "AMZNLINUXHVM": "ami-da9e2cbc" }, "ap-northeast-2": { "AMZNLINUXHVM": "ami-1196317f" }, "ap-south-1": { "AMZNLINUXHVM": "ami-d5c18eba" }, "ap-southeast-1": { "AMZNLINUXHVM": "ami-c63d6aa5" }, "ap-southeast-2": { "AMZNLINUXHVM": "ami-ff4ea59d" }, "ca-central-1": { "AMZNLINUXHVM": "ami-d29e25b6" }, "eu-central-1": { "AMZNLINUXHVM": "ami-bf2ba8d0" }, "eu-west-1": { "AMZNLINUXHVM": "ami-1a962263" }, "eu-west-2": { "AMZNLINUXHVM": "ami-e7d6c983" }, "sa-east-1": { "AMZNLINUXHVM": "ami-286f2a44" }, "us-east-1": { "AMZNLINUXHVM": "ami-55ef662f" }, "us-east-2": { "AMZNLINUXHVM": "ami-15e9c770" }, "us-west-1": { "AMZNLINUXHVM": "ami-a51f27c5" }, "us-west-2": { "AMZNLINUXHVM": "ami-bf4193c7" } } }, "Resources": { "WebServerGroup": { "Type": "AWS::AutoScaling::AutoScalingGroup", "Properties": { "VPCZoneIdentifier": { "Ref": "Subnets" }, "LaunchConfigurationName": { "Ref": "LaunchConfig" }, "MinSize": "2", "MaxSize": "2", "TargetGroupARNs": [ { "Ref": "ALBTargetGroup" } ] }, "CreationPolicy": { "ResourceSignal": { "Timeout": "PT15M" } }, "UpdatePolicy": { "AutoScalingRollingUpdate": { "MinInstancesInService": "1", "MaxBatchSize": "1", "PauseTime": "PT15M", "WaitOnResourceSignals": "true" } } }, "LaunchConfig": { "Type": "AWS::AutoScaling::LaunchConfiguration", "Metadata": { "Comment": "Install a simple application", "AWS::CloudFormation::Init": { "config": { "packages": { "yum": { "httpd": [] } }, "files": { "/var/www/html/index.html": { "content": { "Fn::Join": [ "\n", [ "<h1>Congratulations, you have successfully launched the AWS CloudFormation sample.<h1>" ] ] }, "mode": "000644", "owner": "root", "group": "root" }, "/etc/cfn/cfn-hup.conf": { "content": { "Fn::Join": [ "", [ "[main]\n", "stack=", { "Ref": "AWS::StackId" }, "\n", "region=", { "Ref": "AWS::Region" }, "\n" ] ] }, "mode": "000400", "owner": "root", "group": "root" }, "/etc/cfn/hooks.d/cfn-auto-reloader.conf": { "content": { "Fn::Join": [ "", [ "[cfn-auto-reloader-hook]\n", "triggers=post.update\n", "path=Resources.LaunchConfig.Metadata.AWS::CloudFormation::Init\n", "action=/opt/aws/bin/cfn-init -v ", " --stack ", { "Ref": "AWS::StackName" }, " --resource LaunchConfig ", " --region ", { "Ref": "AWS::Region" }, "\n", "runas=root\n" ] ] }, "mode": "000400", "owner": "root", "group": "root" } }, "services": { "sysvinit": { "httpd": { "enabled": "true", "ensureRunning": "true" }, "cfn-hup": { "enabled": "true", "ensureRunning": "true", "files": [ "/etc/cfn/cfn-hup.conf", "/etc/cfn/hooks.d/cfn-auto-reloader.conf" ] } } } } } }, "Properties": { "ImageId": { "Fn::FindInMap": [ "AWSAMIRegionMap", { "Ref": "AWS::Region" }, "AMZNLINUXHVM" ] }, "SecurityGroups": [ { "Ref": "InstanceSecurityGroup" } ], "InstanceType": { "Ref": "InstanceType" }, "KeyName": { "Ref": "KeyName" }, "UserData": { "Fn::Base64": { "Fn::Join": [ "", [ "#!/bin/bash -xe\n", "yum update -y aws-cfn-bootstrap\n", "/opt/aws/bin/cfn-init -v ", " --stack ", { "Ref": "AWS::StackName" }, " --resource LaunchConfig ", " --region ", { "Ref": "AWS::Region" }, "\n", "/opt/aws/bin/cfn-signal -e $? ", " --stack ", { "Ref": "AWS::StackName" }, " --resource WebServerGroup ", " --region ", { "Ref": "AWS::Region" }, "\n" ] ] } } } }, "ELBSecurityGroup": { "Type": "AWS::EC2::SecurityGroup", "Properties": { "GroupDescription": "Allow access to the ELB", "VpcId": { "Ref": "VpcId" }, "SecurityGroupIngress": [ { "Fn::If": [ "UseALBSSL", { "IpProtocol": "tcp", "FromPort": 443, "ToPort": 443, "CidrIp": "0.0.0.0/0" }, { "IpProtocol": "tcp", "FromPort": 80, "ToPort": 80, "CidrIp": "0.0.0.0/0" } ] } ] } }, "ApplicationLoadBalancer": { "Type": "AWS::ElasticLoadBalancingV2::LoadBalancer", "Properties": { "Subnets": { "Ref": "Subnets" }, "SecurityGroups": [ { "Ref": "ELBSecurityGroup" } ] } }, "ALBListener": { "Type": "AWS::ElasticLoadBalancingV2::Listener", "Properties": { "DefaultActions": [ { "Type": "forward", "TargetGroupArn": { "Ref": "ALBTargetGroup" } } ], "LoadBalancerArn": { "Ref": "ApplicationLoadBalancer" }, "Port": { "Fn::If": [ "UseALBSSL", 443, 80 ] }, "Protocol": { "Fn::If": [ "UseALBSSL", "HTTPS", "HTTP" ] }, "Certificates": [ { "Fn::If": [ "UseALBSSL", { "CertificateArn": { "Ref": "ALBSSLCertificateARN" } }, { "Ref": "AWS::NoValue" } ] } ] } }, "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 access on the inbound port", "SecurityGroupIngress": [ { "IpProtocol": "tcp", "FromPort": 80, "ToPort": 80, "SourceSecurityGroupId": { "Fn::Select": [ 0, { "Fn::GetAtt": [ "ApplicationLoadBalancer", "SecurityGroups" ] } ] } }, { "IpProtocol": "tcp", "FromPort": 22, "ToPort": 22, "CidrIp": { "Ref": "SSHLocation" } } ], "VpcId": { "Ref": "VpcId" } } }, "RecordSet": { "Type": "AWS::Route53::RecordSetGroup", "Condition": "UseALBSSL", "Properties": { "HostedZoneName": { "Fn::Join": [ "", [ { "Ref": "HostedZoneName" }, "." ] ] }, "RecordSets": [ { "Name": { "Fn::Join": [ "", [ { "Fn::Select": [ "0", { "Fn::Split": [ ".", { "Fn::GetAtt": [ "ApplicationLoadBalancer", "DNSName" ] } ] } ] }, ".", { "Ref": "HostedZoneName" }, "." ] ] }, "Type": "A", "AliasTarget": { "DNSName": { "Fn::GetAtt": [ "ApplicationLoadBalancer", "DNSName" ] }, "EvaluateTargetHealth": true, "HostedZoneId": { "Fn::GetAtt": [ "ApplicationLoadBalancer", "CanonicalHostedZoneID" ] } } } ] } } }, "Outputs": { "URL": { "Description": "URL of the website", "Value": { "Fn::Join": [ "", [ { "Fn::If": [ "UseALBSSL", { "Fn::Join": [ "", [ "https://", { "Fn::Join": [ "", [ { "Fn::Select": [ "0", { "Fn::Split": [ ".", { "Fn::GetAtt": [ "ApplicationLoadBalancer", "DNSName" ] } ] } ] }, ".", { "Ref": "HostedZoneName" }, "." ] ] } ] ] }, { "Fn::Join": [ "", [ "http://", { "Fn::GetAtt": [ "ApplicationLoadBalancer", "DNSName" ] } ] ] } ] } ] ] } } } }
예: YAML
AWSTemplateFormatVersion: 2010-09-09 Description: >- AWS CloudFormation Sample Template for using Assertions: Create a load balanced, Auto Scaled sample website where the instances are locked down to only accept traffic from the load balancer. This example creates an Auto Scaling group behind a load balancer with a health check. The web site is available on port 80 or 443 based on the input. 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) ConstraintDescription: >- must be a list of at least two existing subnets associated with at least two different availability zones. They should be residing in the selected Virtual Private Cloud. InstanceType: Description: WebServer EC2 instance type Type: String Default: t2.small AllowedValues: - t2.nano - t2.micro - t2.small - t2.medium - t2.large - m4.large - m4.xlarge - m4.2xlarge - m4.4xlarge - m4.10xlarge - m3.medium - m3.large - m3.xlarge - m3.2xlarge - c4.large - c4.xlarge - c4.2xlarge - c4.4xlarge - c4.8xlarge - c3.large - c3.xlarge - c3.2xlarge - c3.4xlarge - c3.8xlarge - r3.large - r3.xlarge ConstraintDescription: must be a valid EC2 instance type. KeyName: Description: Name of an existing EC2 KeyPair to enable 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. UseSSL: AllowedValues: - 'Yes' - 'No' ConstraintDescription: Select Yes to create a HTTPS Listener Default: 'No' Description: 'Select "Yes" to implement SSL, "No" to skip (default).' Type: String ALBSSLCertificateARN: Default: '' Description: >- [Optional] The ARN of the SSL certificate to be used for the Application Load Balancer Type: String HostedZoneName: AllowedPattern: >- ^$|(([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9\-]*[a-zA-Z0-9])\.)*([A-Za-z0-9]|[A-Za-z0-9][A-Za-z0-9\-]*[A-Za-z0-9])$ Default: '' Description: '[Optional] The domain name of a valid Hosted Zone on AWS.' Type: String Conditions: UseALBSSL: !Not - !Equals - !Ref UseSSL - 'Yes' Rules: SubnetsInVPC: Assertions: - Assert: 'Fn::EachMemberEquals': - 'Fn::ValueOf': - Subnets - VpcId - Ref: VpcId AssertDescription: All subnets must in the VPC ValidateHostedZone: RuleCondition: !Equals - !Ref UseSSL - 'Yes' Assertions: - Assert: !Not - !Equals - !Ref ALBSSLCertificateARN - '' AssertDescription: ACM Certificate value cannot be empty if SSL is required - Assert: !Not - !Equals - !Ref HostedZoneName - '' AssertDescription: Route53 Hosted Zone Name is mandatory when SSL is required Mappings: AWSAMIRegionMap: AMI: AMZNLINUXHVM: amzn-ami-hvm-2017.09.1.20171120-x86_64-gp2 ap-northeast-1: AMZNLINUXHVM: ami-da9e2cbc ap-northeast-2: AMZNLINUXHVM: ami-1196317f ap-south-1: AMZNLINUXHVM: ami-d5c18eba ap-southeast-1: AMZNLINUXHVM: ami-c63d6aa5 ap-southeast-2: AMZNLINUXHVM: ami-ff4ea59d ca-central-1: AMZNLINUXHVM: ami-d29e25b6 eu-central-1: AMZNLINUXHVM: ami-bf2ba8d0 eu-west-1: AMZNLINUXHVM: ami-1a962263 eu-west-2: AMZNLINUXHVM: ami-e7d6c983 sa-east-1: AMZNLINUXHVM: ami-286f2a44 us-east-1: AMZNLINUXHVM: ami-55ef662f us-east-2: AMZNLINUXHVM: ami-15e9c770 us-west-1: AMZNLINUXHVM: ami-a51f27c5 us-west-2: AMZNLINUXHVM: ami-bf4193c7 Resources: WebServerGroup: Type: 'AWS::AutoScaling::AutoScalingGroup' Properties: VPCZoneIdentifier: !Ref Subnets LaunchConfigurationName: !Ref LaunchConfig MinSize: '2' MaxSize: '2' TargetGroupARNs: - !Ref ALBTargetGroup CreationPolicy: ResourceSignal: Timeout: PT15M UpdatePolicy: AutoScalingRollingUpdate: MinInstancesInService: '1' MaxBatchSize: '1' PauseTime: PT15M WaitOnResourceSignals: 'true' LaunchConfig: Type: 'AWS::AutoScaling::LaunchConfiguration' Metadata: Comment: Install a simple application 'AWS::CloudFormation::Init': config: packages: yum: httpd: [] files: /var/www/html/index.html: content: !Join - |+ - - >- <h1>Congratulations, you have successfully launched the AWS CloudFormation sample.<h1> mode: '000644' owner: root group: root /etc/cfn/cfn-hup.conf: content: !Join - '' - - | [main] - stack= - !Ref 'AWS::StackId' - |+ - region= - !Ref 'AWS::Region' - |+ mode: '000400' owner: root group: root /etc/cfn/hooks.d/cfn-auto-reloader.conf: content: !Join - '' - - | [cfn-auto-reloader-hook] - | triggers=post.update - > path=Resources.LaunchConfig.Metadata.AWS::CloudFormation::Init - 'action=/opt/aws/bin/cfn-init -v ' - ' --stack ' - !Ref 'AWS::StackName' - ' --resource LaunchConfig ' - ' --region ' - !Ref 'AWS::Region' - |+ - | runas=root mode: '000400' owner: root group: root services: sysvinit: httpd: enabled: 'true' ensureRunning: 'true' cfn-hup: enabled: 'true' ensureRunning: 'true' files: - /etc/cfn/cfn-hup.conf - /etc/cfn/hooks.d/cfn-auto-reloader.conf Properties: ImageId: !FindInMap - AWSAMIRegionMap - !Ref 'AWS::Region' - AMZNLINUXHVM SecurityGroups: - !Ref InstanceSecurityGroup InstanceType: !Ref InstanceType KeyName: !Ref KeyName UserData: !Base64 'Fn::Join': - '' - - | #!/bin/bash -xe - | yum update -y aws-cfn-bootstrap - '/opt/aws/bin/cfn-init -v ' - ' --stack ' - !Ref 'AWS::StackName' - ' --resource LaunchConfig ' - ' --region ' - !Ref 'AWS::Region' - |+ - '/opt/aws/bin/cfn-signal -e $? ' - ' --stack ' - !Ref 'AWS::StackName' - ' --resource WebServerGroup ' - ' --region ' - !Ref 'AWS::Region' - |+ ELBSecurityGroup: Type: 'AWS::EC2::SecurityGroup' Properties: GroupDescription: Allow access to the ELB VpcId: !Ref VpcId SecurityGroupIngress: - !If - UseALBSSL - IpProtocol: tcp FromPort: 443 ToPort: 443 CidrIp: 0.0.0.0/0 - IpProtocol: tcp FromPort: 80 ToPort: 80 CidrIp: 0.0.0.0/0 ApplicationLoadBalancer: Type: 'AWS::ElasticLoadBalancingV2::LoadBalancer' Properties: Subnets: !Ref Subnets SecurityGroups: - !Ref ELBSecurityGroup ALBListener: Type: 'AWS::ElasticLoadBalancingV2::Listener' Properties: DefaultActions: - Type: forward TargetGroupArn: !Ref ALBTargetGroup LoadBalancerArn: !Ref ApplicationLoadBalancer Port: !If - UseALBSSL - 443 - 80 Protocol: !If - UseALBSSL - HTTPS - HTTP Certificates: - !If - UseALBSSL - CertificateArn: !Ref ALBSSLCertificateARN - !Ref 'AWS::NoValue' 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 access on the inbound port SecurityGroupIngress: - IpProtocol: tcp FromPort: 80 ToPort: 80 SourceSecurityGroupId: !Select - 0 - !GetAtt - ApplicationLoadBalancer - SecurityGroups - IpProtocol: tcp FromPort: 22 ToPort: 22 CidrIp: !Ref SSHLocation VpcId: !Ref VpcId RecordSet: Type: 'AWS::Route53::RecordSetGroup' Condition: UseALBSSL Properties: HostedZoneName: !Join - '' - - !Ref HostedZoneName - . RecordSets: - Name: !Join - '' - - !Select - '0' - !Split - . - !GetAtt - ApplicationLoadBalancer - DNSName - . - !Ref HostedZoneName - . Type: A AliasTarget: DNSName: !GetAtt - ApplicationLoadBalancer - DNSName EvaluateTargetHealth: true HostedZoneId: !GetAtt - ApplicationLoadBalancer - CanonicalHostedZoneID Outputs: URL: Description: URL of the website Value: !Join - '' - - !If - UseALBSSL - !Join - '' - - 'https://' - !Join - '' - - !Select - '0' - !Split - . - !GetAtt - ApplicationLoadBalancer - DNSName - . - !Ref HostedZoneName - . - !Join - '' - - 'http://' - !GetAtt - ApplicationLoadBalancer - DNSName
