def create_cloud_front_template(): template = Template() template.set_transform('AWS::Serverless-2016-10-31') bucket = template.add_resource( resource=Bucket( title='SampleOriginBucket', BucketName=Sub('sample-origin-bucket-${AWS::AccountId}') ) ) identity = template.add_resource( resource=CloudFrontOriginAccessIdentity( title='SampleOriginAccessIdentity', CloudFrontOriginAccessIdentityConfig=CloudFrontOriginAccessIdentityConfig( Comment='sample-lambda-edge' ) ) ) template.add_resource( resource=BucketPolicy( title='SampleBucketPolicy', Bucket=Ref(bucket), PolicyDocument={ 'Statement': [{ 'Action': 's3:GetObject', 'Effect': 'Allow', 'Resource': Join(delimiter='/', values=[GetAtt(bucket, 'Arn'), '*']), 'Principal': { 'CanonicalUser': GetAtt(logicalName=identity, attrName='S3CanonicalUserId') } }] } ) ) template.add_resource( resource=Distribution( title='SampleDistribution', DistributionConfig=DistributionConfig( DefaultCacheBehavior=DefaultCacheBehavior( ForwardedValues=ForwardedValues( QueryString=True, ), LambdaFunctionAssociations=[ LambdaFunctionAssociation( EventType='viewer-request', LambdaFunctionARN=Sub([ '${FUNCTION_ARN}:8', {'FUNCTION_ARN': ImportValue(get_export_name())} ]), ) ], TargetOriginId=Sub('S3-${' + bucket.title + '}'), ViewerProtocolPolicy='redirect-to-https', ), Enabled=True, Origins=[ Origin( Id=Sub('S3-${' + bucket.title + '}'), DomainName=Sub('${' + bucket.title + '}.s3.amazonaws.com'), S3OriginConfig=S3OriginConfig( OriginAccessIdentity=Sub('origin-access-identity/cloudfront/${' + identity.title + '}') ) ) ], ) ) ) with open('./cloudfront.yml', mode='w') as file: file.write(template.to_yaml())
def create_cloudfront_template(): template = Template() cname = template.add_parameter( parameter=Parameter(title='Cname', Type='String')) acm_certificate_arn = template.add_parameter( parameter=Parameter(title='AcmCertificateArn', Type='String')) host_zone_id = template.add_parameter( parameter=Parameter(title='HostZoneId', Type='String')) bucket = template.add_resource( resource=Bucket(title='SampleBucket', BucketName=Sub('sample-bucket-${AWS::AccountId}'))) identity = template.add_resource(resource=CloudFrontOriginAccessIdentity( title='SampleOriginAccessIdentity', CloudFrontOriginAccessIdentityConfig= CloudFrontOriginAccessIdentityConfig(Comment='sample'))) template.add_resource(resource=BucketPolicy( title='SampleBucketPolicy', Bucket=Ref(bucket), PolicyDocument={ 'Statement': [{ 'Action': 's3:GetObject', 'Effect': 'Allow', 'Resource': Join(delimiter='/', values=[GetAtt(bucket, 'Arn'), '*']), 'Principal': { 'CanonicalUser': GetAtt(logicalName=identity, attrName='S3CanonicalUserId') } }] })) distribution = template.add_resource(resource=Distribution( title='SampleDistribution', DistributionConfig=DistributionConfig( Aliases=[Ref(cname)], # CustomErrorResponses=[ # CustomErrorResponse( # ErrorCode=403, # ResponseCode=200, # ResponsePagePath='/404.html', # ErrorCachingMinTTL=30 # ) # ], DefaultCacheBehavior=DefaultCacheBehavior( ForwardedValues=ForwardedValues(QueryString=True, ), TargetOriginId=Sub('S3-${' + bucket.title + '}'), ViewerProtocolPolicy='redirect-to-https', ), # DefaultRootObject='index.html', Enabled=True, Origins=[ Origin(Id=Sub('S3-${' + bucket.title + '}'), DomainName=Sub('${' + bucket.title + '}.s3.amazonaws.com'), S3OriginConfig=S3OriginConfig(OriginAccessIdentity=Sub( 'origin-access-identity/cloudfront/${' + identity.title + '}'))) ], ViewerCertificate=ViewerCertificate(AcmCertificateArn=Ref( acm_certificate_arn), SslSupportMethod='sni-only')))) template.add_resource(resource=RecordSetType( title='SampleRecordSet', AliasTarget=AliasTarget(HostedZoneId='Z2FDTNDATAQYW2', DNSName=GetAtt(logicalName=distribution, attrName='DomainName')), HostedZoneId=Ref(host_zone_id), Name=Ref(cname), Type='A')) with open('./cloudfront.yml', mode='w') as file: file.write(template.to_yaml())
SslSupportMethod='sni-only', ), If( assets_certificate_arn_condition, ViewerCertificate( AcmCertificateArn=Ref(assets_certificate_arn), SslSupportMethod='sni-only', ), Ref("AWS::NoValue"), ), ), Origins=[ Origin( Id="Assets", DomainName=GetAtt(assets_bucket, "DomainName"), S3OriginConfig=S3OriginConfig( OriginAccessIdentity="", ), ) ], DefaultCacheBehavior=DefaultCacheBehavior( TargetOriginId="Assets", ForwardedValues=ForwardedValues( # Cache results *should* vary based on querystring (e.g., 'style.css?v=3') QueryString=True, # make sure headers needed by CORS policy above get through to S3 # http://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/header-caching.html#header-caching-web-cors Headers=[ 'Origin', 'Access-Control-Request-Headers', 'Access-Control-Request-Method', ], ),
def generate_template(d): t = Template() t.set_description(d["cf_template_description"]) S3bucket = t.add_resource( Bucket( "S3Bucket", BucketName=Join("-", [d["project_name"], d["env"]]), AccessControl=Private, PublicAccessBlockConfiguration=PublicAccessBlockConfiguration( BlockPublicAcls=True, BlockPublicPolicy=True, IgnorePublicAcls=True, RestrictPublicBuckets=True, ), Tags=Tags(d["tags"], {"Name": d["project_name"]}), ) ) CFOriginAccessIdentity = t.add_resource( CloudFrontOriginAccessIdentity( "CFOriginAccessIdentity", CloudFrontOriginAccessIdentityConfig=CloudFrontOriginAccessIdentityConfig( Comment=Join(" ", ["Cloudfront Origin Access Identity", d["project_name"], d["env"]]) ), ) ) t.add_resource( BucketPolicy( "BucketPolicy", Bucket=Ref("S3Bucket"), PolicyDocument=dict( Statement=[ dict( Sid="Allow-cf", Effect="Allow", Action=[ "s3:GetObject", "s3:ListBucket" ], Principal=Principal( "CanonicalUser", GetAtt(CFOriginAccessIdentity, "S3CanonicalUserId") ), Resource=[ Join("", ["arn:aws:s3:::", Ref("S3Bucket"), "/*"]), Join("", ["arn:aws:s3:::", Ref("S3Bucket")]), ] ) ] ) ) ) myDistribution = t.add_resource( Distribution( "myDistribution", DistributionConfig=DistributionConfig( Enabled=True, HttpVersion='http2', DefaultRootObject=d['default_root_object'], Origins=[Origin( Id=Join("-", [d["project_name"], d["env"]]), DomainName=GetAtt(S3bucket, "DomainName"), S3OriginConfig=S3OriginConfig( OriginAccessIdentity=Join("/",["origin-access-identity", "cloudfront", Ref(CFOriginAccessIdentity)]) ) )], DefaultCacheBehavior=DefaultCacheBehavior( TargetOriginId=Join("-", [d["project_name"], d["env"]]), ForwardedValues=ForwardedValues( QueryString=False ), ViewerProtocolPolicy="allow-all", MaxTTL=0, MinTTL=0, DefaultTTL=0, ), CustomErrorResponses=[CustomErrorResponse( ErrorCachingMinTTL=0, ErrorCode=404, ResponsePagePath=Join("",["/", d['default_root_object']]), ResponseCode=200, )], ViewerCertificate=ViewerCertificate( CloudFrontDefaultCertificate=True ), ), Tags=Tags(d["tags"], {"Name": d["project_name"]}), ) ) t.add_output(Output( "BucketName", Value=Ref(S3bucket), Description="Name of S3 bucket to hold website content" )) t.add_output([ Output("DistributionId", Value=Ref(myDistribution)), Output( "DistributionName", Value=Join("", ["http://", GetAtt(myDistribution, "DomainName")])), ]) return t
def create_cloud_front_template(): template = Template() bucket = template.add_resource( resource=Bucket( title='SampleBucket', BucketName=Sub('sample-bucket-${AWS::AccountId}') ) ) identity = template.add_resource( resource=CloudFrontOriginAccessIdentity( title='SampleOriginAccessIdentity', CloudFrontOriginAccessIdentityConfig=CloudFrontOriginAccessIdentityConfig( Comment='sample' ) ) ) template.add_resource( resource=BucketPolicy( title='SampleBucketPolicy', Bucket=Ref(bucket), PolicyDocument={ 'Statement': [{ 'Action': 's3:GetObject', 'Effect': 'Allow', 'Resource': Join(delimiter='/', values=[GetAtt(bucket, 'Arn'), '*']), 'Principal': { 'CanonicalUser': GetAtt(logicalName=identity, attrName='S3CanonicalUserId') } }] } ) ) template.add_resource( resource=Distribution( title='SampleDistribution', DistributionConfig=DistributionConfig( Enabled=True, Origins=[ Origin( Id=Sub('S3-${' + bucket.title + '}'), DomainName=Sub('${' + bucket.title + '}.s3.amazonaws.com'), S3OriginConfig=S3OriginConfig( OriginAccessIdentity=Sub('origin-access-identity/cloudfront/${' + identity.title + '}') ) ) ], DefaultCacheBehavior=DefaultCacheBehavior( ForwardedValues=ForwardedValues( QueryString=True, ), TargetOriginId=Sub('S3-${' + bucket.title + '}'), ViewerProtocolPolicy='redirect-to-https', ), DefaultRootObject='index.html', CustomErrorResponses=[ CustomErrorResponse( ErrorCode=403, ResponseCode=200, ResponsePagePath='/404.html', ErrorCachingMinTTL=30 ) ] ) ) ) with open('./cloudfront.yml', mode='w') as file: file.write(template.to_yaml())
IPV6Enabled=True, Origins=[ Origin( Id='S3', DomainName=Join('', [ ImportValue( Join('-', [ Ref(video_engine_stack), 'VideoBucket', 'Ref' ])), '.s3.', Ref(AWS_REGION), '.amazonaws.com' ]), S3OriginConfig=S3OriginConfig(OriginAccessIdentity=Join( '', [ 'origin-access-identity/cloudfront/', ImportValue( Join('-', [ Ref(video_engine_stack), 'VideoOriginAccessIdentity', 'Ref' ])), ]), ), ) ], PriceClass='PriceClass_100', ViewerCertificate=ViewerCertificate( AcmCertificateArn=Ref(cloudfront_certificate), SslSupportMethod='sni-only', MinimumProtocolVersion= 'TLSv1.1_2016', # We might need to raise this ), ), ))
ForwardedValues=ForwardedValues(QueryString=False, ), ), DefaultRootObject='index.html', Enabled=True, HttpVersion='http2', IPV6Enabled=True, Origins=[ Origin( Id='default', DomainName=Join('', [ Ref(s3_website_origin), '.s3.', Ref(AWS_REGION), '.amazonaws.com' ]), S3OriginConfig=S3OriginConfig(OriginAccessIdentity=Join( '', [ 'origin-access-identity/cloudfront/', Ref(origin_access_identity), ]), ), ) ], PriceClass='PriceClass_100', ViewerCertificate=ViewerCertificate( AcmCertificateArn=Ref(cloudfront_certificate), SslSupportMethod='sni-only', ), CustomErrorResponses=[ CustomErrorResponse(ErrorCode=403, ResponseCode=200, ResponsePagePath='/404.html'), ], ),
Parameter( "S3DNSName", Description="The DNS name of an existing S3 bucket to use as the " "Cloudfront distribution origin", Type="String", )) myDistribution = t.add_resource( Distribution( "myDistribution", DistributionConfig=DistributionConfig( Origins=[ Origin( Id="Origin 1", DomainName=Ref(s3dnsname), S3OriginConfig=S3OriginConfig(), ) ], DefaultCacheBehavior=DefaultCacheBehavior( TargetOriginId="Origin 1", ForwardedValues=ForwardedValues(QueryString=False), ViewerProtocolPolicy="allow-all", ), Enabled=True, HttpVersion="http2", ), )) t.add_output([ Output("DistributionId", Value=Ref(myDistribution)), Output(
def create_template(): template = Template(Description=( "Static website hosted with S3 and CloudFront. " "https://github.com/schlarpc/overengineered-cloudfront-s3-static-website" )) partition_config = add_mapping( template, "PartitionConfig", { "aws": { # the region with the control plane for CloudFront, IAM, Route 53, etc "PrimaryRegion": "us-east-1", # assume that Lambda@Edge replicates to all default enabled regions, and that # future regions will be opt-in. generated with AWS CLI: # aws ec2 describe-regions --all-regions --query "Regions[?OptInStatus=='opt-in-not-required'].RegionName|sort(@)" "DefaultRegions": [ "ap-northeast-1", "ap-northeast-2", "ap-northeast-3", "ap-south-1", "ap-southeast-1", "ap-southeast-2", "ca-central-1", "eu-central-1", "eu-north-1", "eu-west-1", "eu-west-2", "eu-west-3", "sa-east-1", "us-east-1", "us-east-2", "us-west-1", "us-west-2", ], }, # this doesn't actually work, because Lambda@Edge isn't supported in aws-cn "aws-cn": { "PrimaryRegion": "cn-north-1", "DefaultRegions": ["cn-north-1", "cn-northwest-1"], }, }, ) acm_certificate_arn = template.add_parameter( Parameter( "AcmCertificateArn", Description= "Existing ACM certificate to use for serving TLS. Overrides HostedZoneId.", Type="String", AllowedPattern="(arn:[^:]+:acm:[^:]+:[^:]+:certificate/.+|)", Default="", )) hosted_zone_id = template.add_parameter( Parameter( "HostedZoneId", Description= "Existing Route 53 zone to use for validating a new TLS certificate.", Type="String", AllowedPattern="(Z[A-Z0-9]+|)", Default="", )) dns_names = template.add_parameter( Parameter( "DomainNames", Description= "Comma-separated list of additional domain names to serve.", Type="CommaDelimitedList", Default="", )) tls_protocol_version = template.add_parameter( Parameter( "TlsProtocolVersion", Description= "CloudFront TLS security policy; see https://amzn.to/2DR91Xq for details.", Type="String", Default="TLSv1.2_2019", )) log_retention_days = template.add_parameter( Parameter( "LogRetentionDays", Description= "Days to keep CloudFront, S3, and Lambda logs. 0 means indefinite retention.", Type="Number", AllowedValues=[0] + CLOUDWATCH_LOGS_RETENTION_OPTIONS, Default=365, )) default_ttl_seconds = template.add_parameter( Parameter( "DefaultTtlSeconds", Description="Cache time-to-live when not set by S3 object headers.", Type="Number", Default=int(datetime.timedelta(minutes=5).total_seconds()), )) enable_price_class_hack = template.add_parameter( Parameter( "EnablePriceClassHack", Description="Cut your bill in half with this one weird trick.", Type="String", Default="false", AllowedValues=["true", "false"], )) retention_defined = add_condition(template, "RetentionDefined", Not(Equals(Ref(log_retention_days), 0))) using_price_class_hack = add_condition( template, "UsingPriceClassHack", Equals(Ref(enable_price_class_hack), "true")) using_acm_certificate = add_condition( template, "UsingAcmCertificate", Not(Equals(Ref(acm_certificate_arn), ""))) using_hosted_zone = add_condition(template, "UsingHostedZone", Not(Equals(Ref(hosted_zone_id), ""))) using_certificate = add_condition( template, "UsingCertificate", Or(Condition(using_acm_certificate), Condition(using_hosted_zone)), ) should_create_certificate = add_condition( template, "ShouldCreateCertificate", And(Condition(using_hosted_zone), Not(Condition(using_acm_certificate))), ) using_dns_names = add_condition(template, "UsingDnsNames", Not(Equals(Select(0, Ref(dns_names)), ""))) is_primary_region = "IsPrimaryRegion" template.add_condition( is_primary_region, Equals(Region, FindInMap(partition_config, Partition, "PrimaryRegion")), ) precondition_region_is_primary = template.add_resource( WaitConditionHandle( "PreconditionIsPrimaryRegionForPartition", Condition=is_primary_region, )) log_ingester_dlq = template.add_resource( Queue( "LogIngesterDLQ", MessageRetentionPeriod=int( datetime.timedelta(days=14).total_seconds()), KmsMasterKeyId="alias/aws/sqs", )) log_ingester_role = template.add_resource( Role( "LogIngesterRole", AssumeRolePolicyDocument=PolicyDocument( Version="2012-10-17", Statement=[ Statement( Effect="Allow", Principal=Principal("Service", "lambda.amazonaws.com"), Action=[sts.AssumeRole], ) ], ), Policies=[ PolicyProperty( PolicyName="DLQPolicy", PolicyDocument=PolicyDocument( Version="2012-10-17", Statement=[ Statement( Effect=Allow, Action=[sqs.SendMessage], Resource=[GetAtt(log_ingester_dlq, "Arn")], ) ], ), ) ], )) log_ingester = template.add_resource( Function( "LogIngester", Runtime=PYTHON_RUNTIME, Handler="index.{}".format(log_ingest.handler.__name__), Code=Code(ZipFile=inspect.getsource(log_ingest)), MemorySize=256, Timeout=300, Role=GetAtt(log_ingester_role, "Arn"), DeadLetterConfig=DeadLetterConfig( TargetArn=GetAtt(log_ingester_dlq, "Arn")), )) log_ingester_permission = template.add_resource( Permission( "LogIngesterPermission", FunctionName=GetAtt(log_ingester, "Arn"), Action="lambda:InvokeFunction", Principal="s3.amazonaws.com", SourceAccount=AccountId, )) log_bucket = template.add_resource( Bucket( "LogBucket", # S3 requires this ACL (regardless of bucket policy) or s3:PutBucketLogging fails. # When the CloudFront distribution is created, it adds an additional bucket ACL. # That ACL is not possible to model in CloudFormation. AccessControl="LogDeliveryWrite", LifecycleConfiguration=LifecycleConfiguration(Rules=[ LifecycleRule(ExpirationInDays=1, Status="Enabled"), LifecycleRule( AbortIncompleteMultipartUpload= AbortIncompleteMultipartUpload(DaysAfterInitiation=1), Status="Enabled", ), ]), NotificationConfiguration=NotificationConfiguration( LambdaConfigurations=[ LambdaConfigurations(Event="s3:ObjectCreated:*", Function=GetAtt(log_ingester, "Arn")) ]), BucketEncryption=BucketEncryption( ServerSideEncryptionConfiguration=[ ServerSideEncryptionRule( ServerSideEncryptionByDefault= ServerSideEncryptionByDefault( # if we use KMS, we can't read the logs SSEAlgorithm="AES256")) ]), OwnershipControls=OwnershipControls(Rules=[ OwnershipControlsRule(ObjectOwnership="BucketOwnerPreferred") ], ), PublicAccessBlockConfiguration=PublicAccessBlockConfiguration( BlockPublicAcls=True, BlockPublicPolicy=True, IgnorePublicAcls=True, RestrictPublicBuckets=True, ), DependsOn=[log_ingester_permission], )) log_ingester_log_group = template.add_resource( LogGroup( "LogIngesterLogGroup", LogGroupName=Join( "", ["/aws/lambda/", Ref(log_ingester)]), RetentionInDays=If(retention_defined, Ref(log_retention_days), NoValue), )) log_ingester_policy = template.add_resource( PolicyType( "LogIngesterPolicy", Roles=[Ref(log_ingester_role)], PolicyName="IngestLogPolicy", PolicyDocument=PolicyDocument( Version="2012-10-17", Statement=[ Statement( Effect=Allow, Action=[logs.CreateLogStream, logs.PutLogEvents], Resource=[ Join( ":", [ "arn", Partition, "logs", Region, AccountId, "log-group", "/aws/cloudfront/*", ], ), Join( ":", [ "arn", Partition, "logs", Region, AccountId, "log-group", "/aws/s3/*", ], ), GetAtt(log_ingester_log_group, "Arn"), ], ), Statement( Effect=Allow, Action=[s3.GetObject], Resource=[Join("", [GetAtt(log_bucket, "Arn"), "/*"])], ), ], ), )) bucket = template.add_resource( Bucket( "ContentBucket", LifecycleConfiguration=LifecycleConfiguration(Rules=[ # not supported by CFN yet: # LifecycleRule( # Transitions=[ # LifecycleRuleTransition( # StorageClass='INTELLIGENT_TIERING', # TransitionInDays=1, # ), # ], # Status="Enabled", # ), LifecycleRule( AbortIncompleteMultipartUpload= AbortIncompleteMultipartUpload(DaysAfterInitiation=7), Status="Enabled", ) ]), LoggingConfiguration=LoggingConfiguration( DestinationBucketName=Ref(log_bucket), LogFilePrefix="s3/"), BucketEncryption=BucketEncryption( ServerSideEncryptionConfiguration=[ ServerSideEncryptionRule( ServerSideEncryptionByDefault= ServerSideEncryptionByDefault( # Origin Access Identities can't use KMS SSEAlgorithm="AES256")) ]), OwnershipControls=OwnershipControls(Rules=[ OwnershipControlsRule(ObjectOwnership="BucketOwnerPreferred") ], ), PublicAccessBlockConfiguration=PublicAccessBlockConfiguration( BlockPublicAcls=True, BlockPublicPolicy=True, IgnorePublicAcls=True, RestrictPublicBuckets=True, ), )) origin_access_identity = template.add_resource( CloudFrontOriginAccessIdentity( "CloudFrontIdentity", CloudFrontOriginAccessIdentityConfig= CloudFrontOriginAccessIdentityConfig( Comment=GetAtt(bucket, "Arn")), )) bucket_policy = template.add_resource( BucketPolicy( "ContentBucketPolicy", Bucket=Ref(bucket), PolicyDocument=PolicyDocument( Version="2012-10-17", Statement=[ Statement( Effect=Allow, Principal=Principal( "CanonicalUser", GetAtt(origin_access_identity, "S3CanonicalUserId"), ), Action=[s3.GetObject], Resource=[Join("", [GetAtt(bucket, "Arn"), "/*"])], ), ], ), )) # Not strictly necessary, as ACLs should take care of this access. However, CloudFront docs # state "In some circumstances [...] S3 resets permissions on the bucket to the default value", # and this allows logging to work without any ACLs in place. log_bucket_policy = template.add_resource( BucketPolicy( "LogBucketPolicy", Bucket=Ref(log_bucket), PolicyDocument=PolicyDocument( Version="2012-10-17", Statement=[ Statement( Effect=Allow, Principal=Principal("Service", "delivery.logs.amazonaws.com"), Action=[s3.PutObject], Resource=[ Join( "/", [GetAtt(log_bucket, "Arn"), "cloudfront", "*"]) ], ), Statement( Effect=Allow, Principal=Principal("Service", "delivery.logs.amazonaws.com"), Action=[s3.ListBucket], Resource=[Join("/", [GetAtt(log_bucket, "Arn")])], ), Statement( Effect=Allow, Principal=Principal("Service", "s3.amazonaws.com"), Action=[s3.PutObject], Resource=[ Join("/", [GetAtt(log_bucket, "Arn"), "s3", "*"]) ], ), ], ), )) certificate_validator_dlq = template.add_resource( Queue( "CertificateValidatorDLQ", MessageRetentionPeriod=int( datetime.timedelta(days=14).total_seconds()), KmsMasterKeyId="alias/aws/sqs", Condition=should_create_certificate, )) certificate_validator_role = template.add_resource( Role( "CertificateValidatorRole", AssumeRolePolicyDocument=PolicyDocument( Version="2012-10-17", Statement=[ Statement( Effect="Allow", Principal=Principal("Service", "lambda.amazonaws.com"), Action=[sts.AssumeRole], ) ], ), Policies=[ PolicyProperty( PolicyName="DLQPolicy", PolicyDocument=PolicyDocument( Version="2012-10-17", Statement=[ Statement( Effect=Allow, Action=[sqs.SendMessage], Resource=[ GetAtt(certificate_validator_dlq, "Arn") ], ) ], ), ) ], # TODO scope down ManagedPolicyArns=[ "arn:aws:iam::aws:policy/service-role/AWSLambdaBasicExecutionRole", "arn:aws:iam::aws:policy/AmazonRoute53FullAccess", "arn:aws:iam::aws:policy/AWSCertificateManagerReadOnly", ], Condition=should_create_certificate, )) certificate_validator_function = template.add_resource( Function( "CertificateValidatorFunction", Runtime=PYTHON_RUNTIME, Handler="index.{}".format(certificate_validator.handler.__name__), Code=Code(ZipFile=inspect.getsource(certificate_validator)), MemorySize=256, Timeout=300, Role=GetAtt(certificate_validator_role, "Arn"), DeadLetterConfig=DeadLetterConfig( TargetArn=GetAtt(certificate_validator_dlq, "Arn")), Environment=Environment( Variables={ certificate_validator.EnvVars.HOSTED_ZONE_ID.name: Ref(hosted_zone_id) }), Condition=should_create_certificate, )) certificate_validator_log_group = template.add_resource( LogGroup( "CertificateValidatorLogGroup", LogGroupName=Join( "", ["/aws/lambda/", Ref(certificate_validator_function)]), RetentionInDays=If(retention_defined, Ref(log_retention_days), NoValue), Condition=should_create_certificate, )) certificate_validator_rule = template.add_resource( Rule( "CertificateValidatorRule", EventPattern={ "detail-type": ["AWS API Call via CloudTrail"], "detail": { "eventSource": ["acm.amazonaws.com"], "eventName": ["AddTagsToCertificate"], "requestParameters": { "tags": { "key": [certificate_validator_function.title], "value": [GetAtt(certificate_validator_function, "Arn")], } }, }, }, Targets=[ Target( Id="certificate-validator-lambda", Arn=GetAtt(certificate_validator_function, "Arn"), ) ], DependsOn=[certificate_validator_log_group], Condition=should_create_certificate, )) certificate_validator_permission = template.add_resource( Permission( "CertificateValidatorPermission", FunctionName=GetAtt(certificate_validator_function, "Arn"), Action="lambda:InvokeFunction", Principal="events.amazonaws.com", SourceArn=GetAtt(certificate_validator_rule, "Arn"), Condition=should_create_certificate, )) certificate = template.add_resource( Certificate( "Certificate", DomainName=Select(0, Ref(dns_names)), SubjectAlternativeNames=Ref( dns_names), # duplicate first name works fine ValidationMethod="DNS", Tags=Tags( **{ certificate_validator_function.title: GetAtt(certificate_validator_function, "Arn") }), DependsOn=[certificate_validator_permission], Condition=should_create_certificate, )) edge_hook_role = template.add_resource( Role( "EdgeHookRole", AssumeRolePolicyDocument=PolicyDocument( Version="2012-10-17", Statement=[ Statement( Effect="Allow", Principal=Principal( "Service", [ "lambda.amazonaws.com", "edgelambda.amazonaws.com" ], ), Action=[sts.AssumeRole], ) ], ), )) edge_hook_function = template.add_resource( Function( "EdgeHookFunction", Runtime=PYTHON_RUNTIME, Handler="index.handler", Code=Code(ZipFile=inspect.getsource(edge_hook)), MemorySize=128, Timeout=3, Role=GetAtt(edge_hook_role, "Arn"), )) edge_hook_function_hash = (hashlib.sha256( json.dumps(edge_hook_function.to_dict(), sort_keys=True).encode("utf-8")).hexdigest()[:10].upper()) edge_hook_version = template.add_resource( Version( "EdgeHookVersion" + edge_hook_function_hash, FunctionName=GetAtt(edge_hook_function, "Arn"), )) replica_log_group_name = Join( "/", [ "/aws/lambda", Join( ".", [ FindInMap(partition_config, Partition, "PrimaryRegion"), Ref(edge_hook_function), ], ), ], ) edge_hook_role_policy = template.add_resource( PolicyType( "EdgeHookRolePolicy", PolicyName="write-logs", PolicyDocument=PolicyDocument( Version="2012-10-17", Statement=[ Statement( Effect=Allow, Action=[logs.CreateLogStream, logs.PutLogEvents], Resource=[ Join( ":", [ "arn", Partition, "logs", "*", AccountId, "log-group", replica_log_group_name, "log-stream", "*", ], ), ], ), ], ), Roles=[Ref(edge_hook_role)], )) stack_set_administration_role = template.add_resource( Role( "StackSetAdministrationRole", AssumeRolePolicyDocument=PolicyDocument( Version="2012-10-17", Statement=[ Statement( Effect=Allow, Principal=Principal("Service", "cloudformation.amazonaws.com"), Action=[sts.AssumeRole], ), ], ), )) stack_set_execution_role = template.add_resource( Role( "StackSetExecutionRole", AssumeRolePolicyDocument=PolicyDocument( Version="2012-10-17", Statement=[ Statement( Effect=Allow, Principal=Principal( "AWS", GetAtt(stack_set_administration_role, "Arn")), Action=[sts.AssumeRole], ), ], ), Policies=[ PolicyProperty( PolicyName="create-stackset-instances", PolicyDocument=PolicyDocument( Version="2012-10-17", Statement=[ Statement( Effect=Allow, Action=[ cloudformation.DescribeStacks, logs.DescribeLogGroups, ], Resource=["*"], ), # stack instances communicate with the CFN service via SNS Statement( Effect=Allow, Action=[sns.Publish], NotResource=[ Join( ":", [ "arn", Partition, "sns", "*", AccountId, "*" ], ) ], ), Statement( Effect=Allow, Action=[ logs.CreateLogGroup, logs.DeleteLogGroup, logs.PutRetentionPolicy, logs.DeleteRetentionPolicy, ], Resource=[ Join( ":", [ "arn", Partition, "logs", "*", AccountId, "log-group", replica_log_group_name, "log-stream", "", ], ), ], ), Statement( Effect=Allow, Action=[ cloudformation.CreateStack, cloudformation.DeleteStack, cloudformation.UpdateStack, ], Resource=[ Join( ":", [ "arn", Partition, "cloudformation", "*", AccountId, Join( "/", [ "stack", Join( "-", [ "StackSet", StackName, "*" ], ), ], ), ], ) ], ), ], ), ), ], )) stack_set_administration_role_policy = template.add_resource( PolicyType( "StackSetAdministrationRolePolicy", PolicyName="assume-execution-role", PolicyDocument=PolicyDocument( Version="2012-10-17", Statement=[ Statement( Effect=Allow, Action=[sts.AssumeRole], Resource=[GetAtt(stack_set_execution_role, "Arn")], ), ], ), Roles=[Ref(stack_set_administration_role)], )) edge_log_groups = template.add_resource( StackSet( "EdgeLambdaLogGroupStackSet", AdministrationRoleARN=GetAtt(stack_set_administration_role, "Arn"), ExecutionRoleName=Ref(stack_set_execution_role), StackSetName=Join("-", [StackName, "EdgeLambdaLogGroup"]), PermissionModel="SELF_MANAGED", Description="Multi-region log groups for Lambda@Edge replicas", Parameters=[ StackSetParameter( ParameterKey="LogGroupName", ParameterValue=replica_log_group_name, ), StackSetParameter( ParameterKey="LogRetentionDays", ParameterValue=Ref(log_retention_days), ), ], OperationPreferences=OperationPreferences( FailureToleranceCount=0, MaxConcurrentPercentage=100, ), StackInstancesGroup=[ StackInstances( DeploymentTargets=DeploymentTargets(Accounts=[AccountId]), Regions=FindInMap(partition_config, Partition, "DefaultRegions"), ) ], TemplateBody=create_log_group_template().to_json(indent=None), DependsOn=[stack_set_administration_role_policy], )) price_class_distribution = template.add_resource( Distribution( "PriceClassDistribution", DistributionConfig=DistributionConfig( Comment="Dummy distribution used for price class hack", DefaultCacheBehavior=DefaultCacheBehavior( TargetOriginId="default", ViewerProtocolPolicy="allow-all", ForwardedValues=ForwardedValues(QueryString=False), ), Enabled=True, Origins=[ Origin(Id="default", DomainName=GetAtt(bucket, "DomainName")) ], IPV6Enabled=True, ViewerCertificate=ViewerCertificate( CloudFrontDefaultCertificate=True), PriceClass="PriceClass_All", ), Condition=using_price_class_hack, )) distribution = template.add_resource( Distribution( "ContentDistribution", DistributionConfig=DistributionConfig( Enabled=True, Aliases=If(using_dns_names, Ref(dns_names), NoValue), Logging=Logging(Bucket=GetAtt(log_bucket, "DomainName"), Prefix="cloudfront/"), DefaultRootObject="index.html", Origins=[ Origin( Id="default", DomainName=GetAtt(bucket, "DomainName"), S3OriginConfig=S3OriginConfig( OriginAccessIdentity=Join( "", [ "origin-access-identity/cloudfront/", Ref(origin_access_identity), ], )), ) ], DefaultCacheBehavior=DefaultCacheBehavior( TargetOriginId="default", Compress=True, ForwardedValues=ForwardedValues(QueryString=False), ViewerProtocolPolicy="redirect-to-https", DefaultTTL=Ref(default_ttl_seconds), LambdaFunctionAssociations=[ LambdaFunctionAssociation( EventType="origin-request", LambdaFunctionARN=Ref(edge_hook_version), ) ], ), HttpVersion="http2", IPV6Enabled=True, ViewerCertificate=ViewerCertificate( AcmCertificateArn=If( using_acm_certificate, Ref(acm_certificate_arn), If(using_hosted_zone, Ref(certificate), NoValue), ), SslSupportMethod=If(using_certificate, "sni-only", NoValue), CloudFrontDefaultCertificate=If(using_certificate, NoValue, True), MinimumProtocolVersion=Ref(tls_protocol_version), ), PriceClass=If(using_price_class_hack, "PriceClass_100", "PriceClass_All"), ), DependsOn=[ bucket_policy, log_ingester_policy, edge_log_groups, precondition_region_is_primary, ], )) distribution_log_group = template.add_resource( LogGroup( "DistributionLogGroup", LogGroupName=Join( "", ["/aws/cloudfront/", Ref(distribution)]), RetentionInDays=If(retention_defined, Ref(log_retention_days), NoValue), )) bucket_log_group = template.add_resource( LogGroup( "BucketLogGroup", LogGroupName=Join("", ["/aws/s3/", Ref(bucket)]), RetentionInDays=If(retention_defined, Ref(log_retention_days), NoValue), )) template.add_output(Output("DistributionId", Value=Ref(distribution))) template.add_output( Output("DistributionDomain", Value=GetAtt(distribution, "DomainName"))) template.add_output( Output( "DistributionDnsTarget", Value=If( using_price_class_hack, GetAtt(price_class_distribution, "DomainName"), GetAtt(distribution, "DomainName"), ), )) template.add_output( Output( "DistributionUrl", Value=Join("", ["https://", GetAtt(distribution, "DomainName"), "/"]), )) template.add_output(Output("ContentBucketArn", Value=GetAtt(bucket, "Arn"))) return template