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09-cloudfront.yaml
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09-cloudfront.yaml
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AWSTemplateFormatVersion: 2010-09-09
Description: Reference Architecture to host Moodle on AWS - Creates CloudFront distribution (if selected)
Metadata:
AWS::CloudFormation::Interface:
ParameterGroups:
- Label:
default: AWS Parameters
Parameters:
- CloudFrontAcmCertificate
- DomainName
- PublicAlbDnsName
ParameterLabels:
CloudFrontAcmCertificate:
default: CloudFront Certificate ARN
PublicAlbDnsName:
default: Public ALB DNS Name
DomainName:
default: Domain name of the Moodle site
Parameters:
CloudFrontAcmCertificate:
AllowedPattern: ^$|(arn:aws:acm:)([a-z0-9/:-])*([a-z0-9])$
Description: '[ Optional ] The AWS Certification Manager certificate ARN for the CloudFront distribution certificate - this certificate should be created in the us-east-1 (N. Virginia) region and must reference the Moodle domain name you use below.'
Type: String
PublicAlbDnsName:
Description: The public application load balancer dns name.
Type: String
DomainName:
AllowedPattern: ^$|(([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9\-]*[a-zA-Z0-9])\.)*([A-Za-z0-9]|[A-Za-z0-9][A-Za-z0-9\-]*[A-Za-z0-9])$
Description: '[ Optional ] The main domain name of the Moodle site (e.g. moodle.example.edu).'
Type: String
Conditions:
SslCertificate:
!Not [ !Equals [ '', !Ref CloudFrontAcmCertificate ] ]
NoSslCertificate:
!Equals [ '', !Ref CloudFrontAcmCertificate ]
DomainName:
!Not [ !Equals [ '', !Ref DomainName ] ]
NoDomainName:
!Equals [ '', !Ref DomainName ]
Resources:
CloudFrontDistributionNoSslCertificate:
Type: AWS::CloudFront::Distribution
Condition: NoSslCertificate
Properties:
DistributionConfig:
Aliases:
- !If [ DomainName, !Ref DomainName, !Ref 'AWS::NoValue' ]
Comment: !Ref 'AWS::StackName'
DefaultCacheBehavior:
AllowedMethods:
- DELETE
- GET
- HEAD
- OPTIONS
- PATCH
- POST
- PUT
DefaultTTL: 0
MaxTTL: 0
MinTTL: 0
ForwardedValues:
QueryString: true
Headers:
- '*'
Cookies:
Forward: all
TargetOriginId: elb
ViewerProtocolPolicy: allow-all
Compress: true
Enabled: true
Origins:
- DomainName: !Ref PublicAlbDnsName
Id: elb
CustomOriginConfig:
OriginProtocolPolicy: http-only
PriceClass: PriceClass_100
CloudFrontDistributionSslCertificate:
Type: AWS::CloudFront::Distribution
Condition: SslCertificate
Properties:
DistributionConfig:
Aliases:
- !If [ DomainName, !Ref DomainName, !Ref 'AWS::NoValue' ]
Comment: !Ref 'AWS::StackName'
DefaultCacheBehavior:
AllowedMethods:
- DELETE
- GET
- HEAD
- OPTIONS
- PATCH
- POST
- PUT
DefaultTTL: 0
MaxTTL: 0
MinTTL: 0
ForwardedValues:
QueryString: true
Headers:
- '*'
Cookies:
Forward: all
TargetOriginId: elb
ViewerProtocolPolicy: redirect-to-https
Compress: true
Enabled: true
Origins:
- DomainName: !Ref PublicAlbDnsName
Id: elb
CustomOriginConfig:
OriginProtocolPolicy: https-only
PriceClass: PriceClass_100
ViewerCertificate:
AcmCertificateArn: !Ref CloudFrontAcmCertificate
SslSupportMethod: sni-only
MinimumProtocolVersion: TLSv1
Outputs:
DnsEndpoint:
Value: !If [ NoSslCertificate, !GetAtt CloudFrontDistributionNoSslCertificate.DomainName, !GetAtt CloudFrontDistributionSslCertificate.DomainName ]
DnsHostname:
Value: !If [ NoSslCertificate, !Join [ '', [ 'http://', !GetAtt CloudFrontDistributionNoSslCertificate.DomainName ] ], !Join [ '', [ 'https://', !GetAtt CloudFrontDistributionSslCertificate.DomainName ] ] ]