def add_cloudfront_distribution( self, bucket_policy: s3.BucketPolicy, cloudfront_distribution_options: Dict[str, Any], ) -> cloudfront.Distribution: """Add the CloudFront distribution to the template / output the id and domain name. Args: bucket_policy: Bucket policy to allow CloudFront access. cloudfront_distribution_options: The distribution options. Return: The CloudFront Distribution resource """ distribution = self.template.add_resource( cloudfront.Distribution( "CFDistribution", DependsOn=bucket_policy.title, DistributionConfig=cloudfront.DistributionConfig( **cloudfront_distribution_options), )) self.template.add_output( Output( "CFDistributionId", Description="CloudFront distribution ID", Value=distribution.ref(), )) self.template.add_output( Output( "CFDistributionDomainName", Description="CloudFront distribution domain name", Value=distribution.get_att("DomainName"), )) return distribution
def CF_CloudFront(key): for n, v in getattr(cfg, key).items(): resname = f"{key}{n}" # Resources R_CloudFrontDistribution = clf.Distribution(resname) # process cache_behavior and origin cache_behavior_process() origin_process() # Automatically compute Behaviour Order based on PathPattern cfg.dbg_clf_compute_order = {} sortedcachebehaviors = sorted( cfg.CloudFrontCacheBehaviors.items(), key=lambda x_y: clf_compute_order(x_y[1]["PathPattern"]), ) cfg.CloudFrontCacheBehaviors = {x[0]: x[1] for x in sortedcachebehaviors} if cfg.debug: print("##########CLF_COMPUTE_ORDER#########START#######") for n, v in iter( sorted(cfg.dbg_clf_compute_order.items(), key=lambda x_y: x_y[1]) ): print(f"{n} {v}\n") print("##########CLF_COMPUTE_ORDER#########END#######") auto_get_props(R_CloudFrontDistribution) add_obj(R_CloudFrontDistribution)
def create_distribution(self): t = self.template t.add_resource( cf.Distribution( DISTRIBUTION, DistributionConfig=cf.DistributionConfig( Origins=[ cf.Origin( Id='1', DomainName=GetAtt(BUCKET, 'DomainName'), S3OriginConfig=cf.S3Origin(), ) ], Enabled=Ref('Enabled'), DefaultCacheBehavior=cf.DefaultCacheBehavior( TargetOriginId='1', ForwardedValues=cf.ForwardedValues( QueryString=False, ), ViewerProtocolPolicy='allow-all', ), ), )) t.add_output( Output('DomainName', Value=Join('', ['https://', GetAtt(DISTRIBUTION, 'DomainName')])))
def add_cloudfront_distribution(self, bucket_policy, cloudfront_distribution_options): # type: (s3.BucketPolicy, Dict[str, Any]) -> cloudfront.Distribution """Add the CloudFront distribution to the template / output the id and domain name. Keyword Args: bucket_policy (dict): Bucket policy to allow CloudFront access cloudfront_distribution_options (dict): The distribution options Return: dict: The CloudFront Distribution resource """ distribution = self.template.add_resource( cloudfront.Distribution( 'CFDistribution', DependsOn=bucket_policy.title, DistributionConfig=cloudfront.DistributionConfig( **cloudfront_distribution_options))) self.template.add_output( Output('CFDistributionId', Description='CloudFront distribution ID', Value=distribution.ref())) self.template.add_output( Output('CFDistributionDomainName', Description='CloudFront distribution domain name', Value=distribution.get_att('DomainName'))) return distribution
def create_distribution(self): t = self.template s3_origin = cloudfront.Origin( DomainName=self.origin_bucket_url, Id="s3", CustomOriginConfig=cloudfront.CustomOrigin( HTTPPort=80, HTTPSPort=443, OriginProtocolPolicy="http-only" ), ) default_behavior = cloudfront.DefaultCacheBehavior( AllowedMethods=["GET", "HEAD"], CachedMethods=["GET", "HEAD"], ViewerProtocolPolicy="redirect-to-https", ForwardedValues=cloudfront.ForwardedValues( QueryString=True, Cookies=cloudfront.Cookies( Forward="none" ) ), MinTTL=0, MaxTTL=31536000, DefaultTTL=86400, SmoothStreaming=False, TargetOriginId="s3", ) viewer_certificate = NoValue if self.certificate_arn: viewer_certificate = cloudfront.ViewerCertificate( AcmCertificateArn=self.certificate_arn, SslSupportMethod="sni-only", ) config = cloudfront.DistributionConfig( Aliases=self.aliases, DefaultCacheBehavior=default_behavior, Comment="%s" % self.origin_bucket_url, Enabled=True, PriceClass="PriceClass_All", ViewerCertificate=viewer_certificate, Origins=[s3_origin], ) self.distribution = t.add_resource( cloudfront.Distribution( "Distribution", DistributionConfig=config, ) ) self.add_output("DistributionId", self.distribution.Ref()) self.add_output( "DomainName", self.distribution.GetAtt("DomainName") )
def create_cloudfront_distributions(self): blue_tile_distribution = self.add_resource( cf.Distribution( 'tileDistributionBlue', DistributionConfig=cf.DistributionConfig( Origins=[ cf.Origin(Id='tileOriginId', DomainName=Join('.', [ 'tile-cache', Ref(self.public_hosted_zone_name) ]), CustomOriginConfig=cf.CustomOrigin( OriginProtocolPolicy='http-only')) ], DefaultCacheBehavior=cf.DefaultCacheBehavior( ForwardedValues=cf.ForwardedValues(QueryString=True), TargetOriginId='tileOriginId', ViewerProtocolPolicy='allow-all'), Enabled=True))) green_tile_distribution = self.add_resource( cf.Distribution( 'tileDistributionGreen', DistributionConfig=cf.DistributionConfig( Origins=[ cf.Origin(Id='tileOriginId', DomainName=Join('.', [ 'tile-cache', Ref(self.public_hosted_zone_name) ]), CustomOriginConfig=cf.CustomOrigin( OriginProtocolPolicy='http-only')) ], DefaultCacheBehavior=cf.DefaultCacheBehavior( ForwardedValues=cf.ForwardedValues(QueryString=True), TargetOriginId='tileOriginId', ViewerProtocolPolicy='allow-all'), Enabled=True))) return blue_tile_distribution, green_tile_distribution
def distribution(self) -> cloudfront.Distribution: """Return cloudfront distribution with bucket as origin.""" origin = cloudfront.Origin( S3OriginConfig=cloudfront.S3OriginConfig(OriginAccessIdentity=Join( "", [ "origin-access-identity/cloudfront/", Ref(self.origin_access_identity), ], )), DomainName=f"{self.bucket.name}.s3.amazonaws.com", Id="S3Origin", ) cache_params = { "AllowedMethods": ["GET", "HEAD", "OPTIONS"], "CachePolicyId": Ref(self.cache_policy), "TargetOriginId": "S3Origin", "ViewerProtocolPolicy": "redirect-to-https", } if self.lambda_edge_function_arns: cache_params["LambdaFunctionAssociations"] = [ cloudfront.LambdaFunctionAssociation( EventType="viewer-request", LambdaFunctionARN=lambda_arn) for lambda_arn in self.lambda_edge_function_arns ] default_cache_behavior = cloudfront.DefaultCacheBehavior( **cache_params) return cloudfront.Distribution( name_to_id(self.name), DistributionConfig=cloudfront.DistributionConfig( Aliases=self.aliases, DefaultRootObject=self.root_object, DefaultCacheBehavior=default_cache_behavior, Enabled="True", HttpVersion="http2", Origins=[origin], ViewerCertificate=cloudfront.ViewerCertificate( AcmCertificateArn=self.certificate_arn, SslSupportMethod="sni-only", MinimumProtocolVersion="TLSv1.2_2021", ), ), )
def __init__(self, title, template, cf_origins_config, cf_cache_behavior_config, cf_distribution_config): """ Class to abstract a Cloudfront Distribution object http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-cloudfront-distributionconfig.html https://github.com/cloudtools/troposphere/blob/master/troposphere/cloudfront.py :param title: title of the Cloudfront Distribution and associated resources to be used in cloud formation :param template: Troposphere stack to append resources to :param cf_origins_config: A list of CFOriginsConfig objects :param cf_cache_behavior_config: A list of CFCacheBehavior objects :param cf_distribution_config: A CFDistributionConfig object """ self.title = title self.origins = [] self.cache_behaviors = [] self.default_cache_behavior = cloudfront.DefaultCacheBehavior() # Populate origins self.add_origins(self.title, cf_origins_config) # Populate cache_behaviors self.add_cache_behaviors(self.title, cf_cache_behavior_config) # Set distribution-wide parameters self.cf_dist = cloudfront.DistributionConfig( self.title + 'CfDistConfig', Aliases=cf_distribution_config.aliases, Comment=self.title, DefaultCacheBehavior=self.default_cache_behavior, CacheBehaviors=self.cache_behaviors, DefaultRootObject=cf_distribution_config.default_root_object, Enabled=cf_distribution_config.enabled, Origins=self.origins, PriceClass=cf_distribution_config.price_class) if cf_distribution_config.acm_cert_arn: self.cf_dist.ViewerCertificate = cloudfront.ViewerCertificate( AcmCertificateArn=cf_distribution_config.acm_cert_arn, SslSupportMethod='sni-only') self.cf_dist = template.add_resource( cloudfront.Distribution(title, DistributionConfig=self.cf_dist))
def build_template(self): t = self._init_template() dist = t.add_resource( cloudfront.Distribution( '{}Cloudfront'.format(self.stack_name), DistributionConfig=cloudfront.DistributionConfig( Aliases=self.domains, HttpVersion=self.http_version, DefaultRootObject=self.index_file, DefaultCacheBehavior=self.default_behavior, Enabled=True, Origins=[], CacheBehaviors=self.behaviors))) if self.acm_ssl_arn: dist.DistributionConfig.ViewerCertificate = cloudfront.ViewerCertificate( # noqa AcmCertificateArn=self.acm_ssl_arn, SslSupportMethod='sni-only', MinimumProtocolVersion='TLSv1.1_2016') elif self.iam_ssl_id: dist.DistributionConfig.ViewerCertificate = cloudfront.ViewerCertificate( # noqa IamCertificateId=self.iam_ssl_id, SslSupportMethod='sni-only', MinimumProtocolVersion='TLSv1') for o in self.origins: dist.DistributionConfig.Origins.append(o.build(t)) if len(self.errors) > 0: dist.DistributionConfig.CustomErrorResponses = self.errors t.add_output([ Output('DistID', Value=Ref(dist)), Output('DNS', Value=GetAtt(dist, 'DomainName')), ]) return t
'Action': ['s3:GetObject'], 'Effect': 'Allow', 'Resource': root_bucket_arn, 'Principal': '*', }] })) cdn = template.add_resource( cloudfront.Distribution( 'WebsiteDistribution', DistributionConfig=cloudfront.DistributionConfig( Aliases=[Ref(domain)], Origins=[ cloudfront.Origin(Id=Ref(root_bucket), DomainName=GetAtt(root_bucket, 'DomainName'), S3OriginConfig=cloudfront.S3Origin()) ], DefaultCacheBehavior=cloudfront.DefaultCacheBehavior( Compress=True, ForwardedValues=cloudfront.ForwardedValues(QueryString=False), TargetOriginId=Ref(root_bucket), ViewerProtocolPolicy='redirect-to-https'), DefaultRootObject=Ref(index_page), Enabled=True))) hosted_zone = Join('', [Ref(zone), '.']) template.add_resource( route53.RecordSetGroup('WebsiteDNSRecord', HostedZoneName=hosted_zone, Comment='Records for the root of the hosted zone', RecordSets=[ route53.RecordSet(
cloudfront.Distribution( 'FrontendDistribution', DistributionConfig=cloudfront.DistributionConfig( Aliases=[ Ref(frontend_cname) ], CacheBehaviors=[ cloudfront.CacheBehavior( AllowedMethods=['HEAD', 'GET'], CachedMethods=['HEAD', 'GET'], ForwardedValues=cloudfront.ForwardedValues( QueryString=False ), PathPattern='*', TargetOriginId=Join('-', ['S3', Ref(frontend_bucket)]), ViewerProtocolPolicy='redirect-to-https' ) ], CustomErrorResponses=[ cloudfront.CustomErrorResponse( ErrorCode=404, ResponseCode=200, ResponsePagePath='/index.html' ) ], DefaultCacheBehavior=cloudfront.DefaultCacheBehavior( ForwardedValues=cloudfront.ForwardedValues( QueryString=False ), TargetOriginId=Join('-', ['S3', Ref(frontend_bucket)]), ViewerProtocolPolicy='redirect-to-https' ), DefaultRootObject='index.html', Enabled=True, IPV6Enabled=True, Origins=[ cloudfront.Origin( DomainName=GetAtt(frontend_bucket, 'DomainName'), Id=Join('-', ['S3', Ref(frontend_bucket)]), S3OriginConfig=cloudfront.S3Origin() ) ], ViewerCertificate=cloudfront.ViewerCertificate( AcmCertificateArn=Ref(frontend_ssl), SslSupportMethod='sni-only' ) ) )
cloudfront.Distribution( "CloudfrontDistribution", DistributionConfig=cloudfront.DistributionConfig( Aliases=[CONFIG['DOMAIN_NAME']], Origins=[ cloudfront.Origin( Id="Origin 1", # turn `http://mybucket.s3-website-us-east-1.amazonaws.com/`y # into `mybucket.s3-website-us-east-1.amazonaws.com` DomainName=Select( 2, Split("/", GetAtt(StaticHostingPublicBucket, 'WebsiteURL'))), # S3 website hosting only serves on 80 CustomOriginConfig=cloudfront.CustomOriginConfig( HTTPPort=80, OriginProtocolPolicy='http-only', )) ], ViewerCertificate=cloudfront.ViewerCertificate( AcmCertificateArn=Ref(CloudFrontCertificate), SslSupportMethod='sni-only', ), DefaultCacheBehavior=cloudfront.DefaultCacheBehavior( TargetOriginId="Origin 1", ForwardedValues=cloudfront.ForwardedValues(QueryString=False), ViewerProtocolPolicy="redirect-to-https", AllowedMethods=["GET", "HEAD"], DefaultTTL=86400 # one day ), DefaultRootObject='index.html', Enabled=True, HttpVersion='http2', # Logging=cloudfront.Logging( # Bucket=GetAtt(CloudfrontLogBucket, 'DomainName'), # IncludeCookies=False # ), PriceClass='PriceClass_100', ), Tags=Tags(**shared_tags_args)))
cloudfront_distribution = stack.add_resource(cloudfront.Distribution( 'visibilitycloudfront', DistributionConfig=cloudfront.DistributionConfig( WebACLId=Ref(waf), Origins=[ cloudfront.Origin( Id='apiv1', DomainName='applicationelasticlb-208988572.us-east-1.elb.amazonaws.com', CustomOriginConfig=cloudfront.CustomOrigin( HTTPPort="80", OriginProtocolPolicy="http-only", ), ), cloudfront.Origin( Id='staticv1', DomainName='cihackathon.s3.amazonaws.com', S3OriginConfig=cloudfront.S3Origin(), ), ], DefaultCacheBehavior=cloudfront.DefaultCacheBehavior( TargetOriginId="staticv1", ForwardedValues=cloudfront.ForwardedValues( QueryString=False, ), ViewerProtocolPolicy="allow-all", MinTTL=1, MaxTTL=60, ), CacheBehaviors=[ cloudfront.CacheBehavior( TargetOriginId='apiv1', ForwardedValues=cloudfront.ForwardedValues( QueryString=True, ), ViewerProtocolPolicy="allow-all", MinTTL=1, MaxTTL=60, PathPattern='/api/v1/*', ), ], Enabled=True, HttpVersion='http1.1', ), ))
) ) if "cloudfront" in bucket: cloudfrontBucket = f"{bucket.lower()}-{randomPrefix}" cloudfront = t.add_resource( cloudfront.Distribution( "Cloudfront", DistributionConfig=cloudfront.DistributionConfig( Origins=[ cloudfront.Origin( Id="1", DomainName=f"{cloudfrontBucket}.s3-ap-southeast-2.amazonaws.com", S3OriginConfig=cloudfront.S3OriginConfig(), ) ], DefaultCacheBehavior=cloudfront.DefaultCacheBehavior( TargetOriginId="1", ForwardedValues=cloudfront.ForwardedValues(QueryString=False), ViewerProtocolPolicy="allow-all", ), Enabled=True, HttpVersion="http2", ), ) ) with open("template.yml", "w") as file: file.write(t.to_yaml())
def create_template(self): """Create template (main function called by Stacker).""" template = self.template variables = self.get_variables() template.add_version('2010-09-09') template.add_description('Static Website - Bucket and Distribution') # Conditions template.add_condition( 'AcmCertSpecified', And(Not(Equals(variables['AcmCertificateArn'].ref, '')), Not(Equals(variables['AcmCertificateArn'].ref, 'undefined')))) template.add_condition( 'AliasesSpecified', And(Not(Equals(Select(0, variables['Aliases'].ref), '')), Not(Equals(Select(0, variables['Aliases'].ref), 'undefined')))) template.add_condition( 'CFLoggingEnabled', And(Not(Equals(variables['LogBucketName'].ref, '')), Not(Equals(variables['LogBucketName'].ref, 'undefined')))) template.add_condition( 'DirectoryIndexSpecified', And(Not(Equals(variables['RewriteDirectoryIndex'].ref, '')), Not(Equals(variables['RewriteDirectoryIndex'].ref, 'undefined'))) # noqa ) template.add_condition( 'WAFNameSpecified', And(Not(Equals(variables['WAFWebACL'].ref, '')), Not(Equals(variables['WAFWebACL'].ref, 'undefined')))) # Resources oai = template.add_resource( cloudfront.CloudFrontOriginAccessIdentity( 'OAI', CloudFrontOriginAccessIdentityConfig=cloudfront. CloudFrontOriginAccessIdentityConfig( # noqa pylint: disable=line-too-long Comment='CF access to website'))) bucket = template.add_resource( s3.Bucket( 'Bucket', AccessControl=s3.Private, LifecycleConfiguration=s3.LifecycleConfiguration(Rules=[ s3.LifecycleRule(NoncurrentVersionExpirationInDays=90, Status='Enabled') ]), VersioningConfiguration=s3.VersioningConfiguration( Status='Enabled'), WebsiteConfiguration=s3.WebsiteConfiguration( IndexDocument='index.html', ErrorDocument='error.html'))) template.add_output( Output('BucketName', Description='Name of website bucket', Value=bucket.ref())) allowcfaccess = template.add_resource( s3.BucketPolicy( 'AllowCFAccess', Bucket=bucket.ref(), PolicyDocument=PolicyDocument( Version='2012-10-17', Statement=[ Statement( Action=[awacs.s3.GetObject], Effect=Allow, Principal=Principal( 'CanonicalUser', oai.get_att('S3CanonicalUserId')), Resource=[Join('', [bucket.get_att('Arn'), '/*'])]) ]))) cfdirectoryindexrewriterole = template.add_resource( iam.Role('CFDirectoryIndexRewriteRole', Condition='DirectoryIndexSpecified', AssumeRolePolicyDocument=PolicyDocument( Version='2012-10-17', Statement=[ Statement(Effect=Allow, Action=[awacs.sts.AssumeRole], Principal=Principal( 'Service', [ 'lambda.amazonaws.com', 'edgelambda.amazonaws.com' ])) ]), ManagedPolicyArns=[ IAM_ARN_PREFIX + 'AWSLambdaBasicExecutionRole' ])) cfdirectoryindexrewrite = template.add_resource( awslambda.Function( 'CFDirectoryIndexRewrite', Condition='DirectoryIndexSpecified', Code=awslambda.Code(ZipFile=Join( '', [ "'use strict';\n", "exports.handler = (event, context, callback) => {\n", "\n", " // Extract the request from the CloudFront event that is sent to Lambda@Edge\n", # noqa pylint: disable=line-too-long " var request = event.Records[0].cf.request;\n", " // Extract the URI from the request\n", " var olduri = request.uri;\n", " // Match any '/' that occurs at the end of a URI. Replace it with a default index\n", # noqa pylint: disable=line-too-long " var newuri = olduri.replace(/\\/$/, '\\/", variables['RewriteDirectoryIndex'].ref, "');\n", # noqa " // Log the URI as received by CloudFront and the new URI to be used to fetch from origin\n", # noqa pylint: disable=line-too-long " console.log(\"Old URI: \" + olduri);\n", " console.log(\"New URI: \" + newuri);\n", " // Replace the received URI with the URI that includes the index page\n", # noqa pylint: disable=line-too-long " request.uri = newuri;\n", " // Return to CloudFront\n", " return callback(null, request);\n", "\n", "};\n" ])), Description= 'Rewrites CF directory HTTP requests to default page', # noqa Handler='index.handler', Role=cfdirectoryindexrewriterole.get_att('Arn'), Runtime='nodejs8.10')) # Generating a unique resource name here for the Lambda version, so it # updates automatically if the lambda code changes code_hash = hashlib.md5( str(cfdirectoryindexrewrite.properties['Code']. properties['ZipFile'].to_dict()).encode() # noqa pylint: disable=line-too-long ).hexdigest() cfdirectoryindexrewritever = template.add_resource( awslambda.Version('CFDirectoryIndexRewriteVer' + code_hash, Condition='DirectoryIndexSpecified', FunctionName=cfdirectoryindexrewrite.ref())) cfdistribution = template.add_resource( cloudfront.Distribution( 'CFDistribution', DependsOn=allowcfaccess.title, DistributionConfig=cloudfront.DistributionConfig( Aliases=If('AliasesSpecified', variables['Aliases'].ref, NoValue), Origins=[ cloudfront.Origin( DomainName=Join( '.', [bucket.ref(), 's3.amazonaws.com']), S3OriginConfig=cloudfront.S3Origin( OriginAccessIdentity=Join( '', [ 'origin-access-identity/cloudfront/', oai.ref() ])), Id='S3Origin') ], DefaultCacheBehavior=cloudfront.DefaultCacheBehavior( AllowedMethods=['GET', 'HEAD'], Compress=False, DefaultTTL='86400', ForwardedValues=cloudfront.ForwardedValues( Cookies=cloudfront.Cookies(Forward='none'), QueryString=False, ), LambdaFunctionAssociations=If( 'DirectoryIndexSpecified', [ cloudfront.LambdaFunctionAssociation( EventType='origin-request', LambdaFunctionARN=cfdirectoryindexrewritever .ref() # noqa ) ], NoValue), TargetOriginId='S3Origin', ViewerProtocolPolicy='redirect-to-https'), DefaultRootObject='index.html', Logging=If( 'CFLoggingEnabled', cloudfront.Logging(Bucket=Join('.', [ variables['LogBucketName'].ref, 's3.amazonaws.com' ])), NoValue), PriceClass=variables['PriceClass'].ref, Enabled=True, WebACLId=If('WAFNameSpecified', variables['WAFWebACL'].ref, NoValue), ViewerCertificate=If( 'AcmCertSpecified', cloudfront.ViewerCertificate( AcmCertificateArn=variables['AcmCertificateArn']. ref, # noqa SslSupportMethod='sni-only'), NoValue)))) template.add_output( Output('CFDistributionId', Description='CloudFront distribution ID', Value=cfdistribution.ref())) template.add_output( Output('CFDistributionDomainName', Description='CloudFront distribution domain name', Value=cfdistribution.get_att('DomainName')))
def create_cloudfront_distributions(self): blue_tile_distribution = self.add_resource( cf.Distribution( 'tileDistributionBlue', DistributionConfig=cf.DistributionConfig( Origins=[ cf.Origin(Id='tileOriginId', DomainName=Join('.', [ 'blue-tiles', Ref(self.public_hosted_zone_name) ]), CustomOriginConfig=cf.CustomOrigin( OriginProtocolPolicy='http-only')) ], DefaultCacheBehavior=cf.DefaultCacheBehavior( ForwardedValues=cf.ForwardedValues(QueryString=True), TargetOriginId='tileOriginId', ViewerProtocolPolicy='allow-all'), Enabled=True))) self.add_resource( cw.Alarm('alarmTileDistributionBlueOrigin4XX', AlarmDescription='Tile distribution origin 4XXs', AlarmActions=[Ref(self.notification_topic_arn)], Statistic='Average', Period=300, Threshold='20', EvaluationPeriods=1, ComparisonOperator='GreaterThanThreshold', MetricName='4xxErrorRate', Namespace='AWS/CloudFront', Dimensions=[ cw.MetricDimension('metricDistributionId', Name='DistributionId', Value=Ref(blue_tile_distribution)), cw.MetricDimension('metricRegion', Name='Region', Value='Global') ])) self.add_resource( cw.Alarm('alarmTileDistributionBlueOrigin5XX', AlarmDescription='Tile distribution origin 5XXs', AlarmActions=[Ref(self.notification_topic_arn)], Statistic='Average', Period=60, Threshold='0', EvaluationPeriods=1, ComparisonOperator='GreaterThanThreshold', MetricName='5xxErrorRate', Namespace='AWS/CloudFront', Dimensions=[ cw.MetricDimension('metricDistributionId', Name='DistributionId', Value=Ref(blue_tile_distribution)), cw.MetricDimension('metricRegion', Name='Region', Value='Global') ])) green_tile_distribution = self.add_resource( cf.Distribution( 'tileDistributionGreen', DistributionConfig=cf.DistributionConfig( Origins=[ cf.Origin(Id='tileOriginId', DomainName=Join('.', [ 'green-tiles', Ref(self.public_hosted_zone_name) ]), CustomOriginConfig=cf.CustomOrigin( OriginProtocolPolicy='http-only')) ], DefaultCacheBehavior=cf.DefaultCacheBehavior( ForwardedValues=cf.ForwardedValues(QueryString=True), TargetOriginId='tileOriginId', ViewerProtocolPolicy='allow-all'), Enabled=True))) self.add_resource( cw.Alarm('alarmTileDistributionGreenOrigin4XX', AlarmDescription='Tile distribution origin 4XXs', AlarmActions=[Ref(self.notification_topic_arn)], Statistic='Average', Period=300, Threshold='20', EvaluationPeriods=1, ComparisonOperator='GreaterThanThreshold', MetricName='4xxErrorRate', Namespace='AWS/CloudFront', Dimensions=[ cw.MetricDimension( 'metricDistributionId', Name='DistributionId', Value=Ref(green_tile_distribution)), cw.MetricDimension('metricRegion', Name='Region', Value='Global') ])) self.add_resource( cw.Alarm('alarmTileDistributionGreenOrigin5XX', AlarmDescription='Tile distribution origin 5XXs', AlarmActions=[Ref(self.notification_topic_arn)], Statistic='Average', Period=60, Threshold='0', EvaluationPeriods=1, ComparisonOperator='GreaterThanThreshold', MetricName='5xxErrorRate', Namespace='AWS/CloudFront', Dimensions=[ cw.MetricDimension( 'metricDistributionId', Name='DistributionId', Value=Ref(green_tile_distribution)), cw.MetricDimension('metricRegion', Name='Region', Value='Global') ])) return blue_tile_distribution, green_tile_distribution
def cloudfront_distribution(self): if self.vars["AcmCertificateARN"]: viewer_certificate = cf.ViewerCertificate( SslSupportMethod="sni-only", MinimumProtocolVersion="TLSv1", AcmCertificateArn=self.vars["AcmCertificateARN"], ) url_prefix = 'https://' else: viewer_certificate = NoValue url_prefix = 'http://' t = self.template self.SiteCFDistribution = t.add_resource( cf.Distribution( "SiteCFDistribution", DistributionConfig=cf.DistributionConfig( Comment="S3 Distribution", Logging=cf.Logging( Prefix=self.vars["FQDNPublic"] + "/cloudfront_logs/", Bucket=self.vars["LogBucket"] + ".s3.amazonaws.com", IncludeCookies="false"), WebACLId=self.vars["WebACLId"], Origins=[ cf.Origin( S3OriginConfig=cf.S3Origin(OriginAccessIdentity=( "origin-access-identity/cloudfront/" + self.vars["OriginAccessIdentity"]), ), Id="myS3Origin", DomainName=GetAtt(self.SiteBucket, "DomainName"), OriginPath=self.vars["OriginPath"], ) ], DefaultRootObject=self.vars["DefaultRootObject"], PriceClass="PriceClass_100", Enabled="true", DefaultCacheBehavior=cf.DefaultCacheBehavior( ViewerProtocolPolicy="redirect-to-https", ForwardedValues=cf.ForwardedValues( Cookies=cf.Cookies(Forward="none"), QueryString="true"), TargetOriginId="myS3Origin", DefaultTTL=self.vars["DefaultTTL"], ), Aliases=[self.vars["FQDNPublic"]], ViewerCertificate=viewer_certificate, ), )) CloudFrontDistribution = t.add_output( Output( "CloudFrontDistribution", Description="Cloudfront distribution domainname in AWS", Value=GetAtt(self.SiteCFDistribution, "DomainName"), )) WebsiteURL = t.add_output( Output( "WebsiteURL", Description="Public URL of cloudfront hosted website", Value=url_prefix + self.vars["FQDNPublic"], ))
def __init__(self): # Resources CloudFrontDistribution = clf.Distribution('CloudFrontDistribution') DistributionConfig = CFDistributionConfig() cachebehaviors = [] sortedcachebehaviors = sorted( iter(cfg.CloudFrontCacheBehaviors.items()), key=lambda x_y: ( (x_y[1]['Order'] * 1000) - len(x_y[1]['PathPattern']) if 'PathPattern' in x_y[1] else 0) if 'Order' in x_y[1] else x_y[0]) itercachebehaviors = iter(sortedcachebehaviors) next(itercachebehaviors) for n, v in itercachebehaviors: if not v['PathPattern']: continue name = f'CloudFrontCacheBehaviors{n}' cachebehavior = CFCacheBehavior(name, key=v) # Create and Use Condition # only if PathPattern Value differ between envs if f'{name}PathPattern' not in cfg.fixedvalues: # conditions add_obj( get_condition(name, 'not_equals', 'None', f'{name}PathPattern')) cachebehaviors.append( If(name, cachebehavior, Ref("AWS::NoValue"))) else: cachebehaviors.append(cachebehavior) DistributionConfig.CacheBehaviors = cachebehaviors cloudfrontaliasextra = [] for n in cfg.CloudFrontAliasExtra: name = f'CloudFrontAliasExtra{n}' # parameters p_Alias = Parameter(name) p_Alias.Description = ('Alias extra - ' 'empty for default based on env/role') add_obj(p_Alias) cloudfrontaliasextra.append(get_endvalue(name, condition=True)) # conditions add_obj(get_condition(name, 'not_equals', 'None')) DistributionConfig.Aliases = cloudfrontaliasextra CloudFrontDistribution.DistributionConfig = DistributionConfig Origins = [] try: cfg.CloudFrontOrigins except: pass else: for n, v in cfg.CloudFrontOrigins.items(): name = f'CloudFrontOrigins{n}' # parameters p_Origin = Parameter(f'CloudFrontOrigins{n}DomainName') p_Origin.Description = ( 'Origin - empty for default based on env/role') p_OriginHTTPSPort = Parameter(f'CloudFrontOrigins{n}HTTPSPort') p_OriginHTTPSPort.Description = ( 'Origin - empty for default based on env/role') if 'OriginAccessIdentity' in v: p_OriginAccessIdentity = Parameter( f'CloudFrontOrigins{n}OriginAccessIdentity') p_OriginAccessIdentity.Description = ( 'OriginAccessIdentity - ' 'empty for default based on env/role') add_obj(p_OriginAccessIdentity) add_obj([ p_Origin, p_OriginHTTPSPort, ]) Origin = CFOriginCLF(name, index=n) Origins.append(Origin) CloudFrontDistribution.DistributionConfig.Origins = Origins CloudFrontDistribution.DistributionConfig.Comment = get_endvalue( 'CloudFrontComment') R_CloudFrontDistribution = CloudFrontDistribution add_obj([ R_CloudFrontDistribution, ]) self.CloudFrontDistribution = CloudFrontDistribution
cloudfront.Distribution( "ExampleDistribution", Condition=use_cert_cond, DistributionConfig=cloudfront.DistributionConfig( Comment="Example distribution for restricted access", Aliases=[domain_name], Enabled=True, IPV6Enabled=True, HttpVersion='http2', PriceClass='PriceClass_100', Origins=[ # Your usual config goes here, example: cloudfront.Origin( Id="ExampleS3", DomainName=Join( '', [Ref(example_bucket), '.s3.amazonaws.com']), S3OriginConfig=cloudfront.S3OriginConfig( OriginAccessIdentity=Join('', [ 'origin-access-identity/cloudfront/', Ref(example_bucket_oai), ])), ), ], DefaultRootObject= "index.html", # Needed for this example only, adapt to your requirements CacheBehaviors=[ # If you have additional cache behaviours, # make sure that (at least) the behaviour matching # /auth-89CE3FEF-FCF6-43B3-9DBA-7C410CAAE220/set-cookie # has the Lambda-function associated. ], DefaultCacheBehavior=cloudfront.DefaultCacheBehavior( ViewerProtocolPolicy= 'redirect-to-https', # HTTPS required. Cookies need to be sent securely LambdaFunctionAssociations=[ cloudfront.LambdaFunctionAssociation( EventType='viewer-request', LambdaFunctionARN=Ref(param_authorizer_lae_arn)), ], # Rest of config as per your needs TargetOriginId='ExampleS3', ForwardedValues=cloudfront.ForwardedValues( QueryString=True, Cookies=cloudfront.Cookies( Forward= 'all', # Don't do this. Done here to validate cookie-removal logic ), ), ), ViewerCertificate=cloudfront.ViewerCertificate( AcmCertificateArn=Ref(acm_cert), SslSupportMethod='sni-only', ), ), Tags=GetAtt(cloudformation_tags, 'TagList'), ))
def create_template(self): """Create template (main function called by Stacker).""" template = self.template variables = self.get_variables() template.add_version('2010-09-09') template.add_description('Static Website - Bucket and Distribution') # Conditions template.add_condition( 'AcmCertSpecified', And(Not(Equals(variables['AcmCertificateArn'].ref, '')), Not(Equals(variables['AcmCertificateArn'].ref, 'undefined')))) template.add_condition( 'AliasesSpecified', And(Not(Equals(Select(0, variables['Aliases'].ref), '')), Not(Equals(Select(0, variables['Aliases'].ref), 'undefined')))) template.add_condition( 'CFLoggingEnabled', And(Not(Equals(variables['LogBucketName'].ref, '')), Not(Equals(variables['LogBucketName'].ref, 'undefined')))) template.add_condition( 'WAFNameSpecified', And(Not(Equals(variables['WAFWebACL'].ref, '')), Not(Equals(variables['WAFWebACL'].ref, 'undefined')))) # Resources oai = template.add_resource( cloudfront.CloudFrontOriginAccessIdentity( 'OAI', CloudFrontOriginAccessIdentityConfig=cloudfront. CloudFrontOriginAccessIdentityConfig( # noqa pylint: disable=line-too-long Comment='CF access to website'))) bucket = template.add_resource( s3.Bucket( 'Bucket', AccessControl=s3.Private, LifecycleConfiguration=s3.LifecycleConfiguration(Rules=[ s3.LifecycleRule(NoncurrentVersionExpirationInDays=90, Status='Enabled') ]), VersioningConfiguration=s3.VersioningConfiguration( Status='Enabled'), WebsiteConfiguration=s3.WebsiteConfiguration( IndexDocument='index.html', ErrorDocument='error.html'))) template.add_output( Output('BucketName', Description='Name of website bucket', Value=bucket.ref())) allowcfaccess = template.add_resource( s3.BucketPolicy( 'AllowCFAccess', Bucket=bucket.ref(), PolicyDocument=Policy( Version='2012-10-17', Statement=[ Statement( Action=[awacs.s3.GetObject], Effect=Allow, Principal=Principal( 'CanonicalUser', oai.get_att('S3CanonicalUserId')), Resource=[Join('', [bucket.get_att('Arn'), '/*'])]) ]))) cfdistribution = template.add_resource( cloudfront.Distribution( 'CFDistribution', DependsOn=allowcfaccess.title, DistributionConfig=cloudfront.DistributionConfig( Aliases=If('AliasesSpecified', variables['Aliases'].ref, NoValue), Origins=[ cloudfront.Origin( DomainName=Join( '.', [bucket.ref(), 's3.amazonaws.com']), S3OriginConfig=cloudfront.S3Origin( OriginAccessIdentity=Join( '', [ 'origin-access-identity/cloudfront/', oai.ref() ])), Id='S3Origin') ], DefaultCacheBehavior=cloudfront.DefaultCacheBehavior( AllowedMethods=['GET', 'HEAD'], Compress=False, DefaultTTL='86400', ForwardedValues=cloudfront.ForwardedValues( Cookies=cloudfront.Cookies(Forward='none'), QueryString=False, ), TargetOriginId='S3Origin', ViewerProtocolPolicy='redirect-to-https'), DefaultRootObject='index.html', Logging=If( 'CFLoggingEnabled', cloudfront.Logging(Bucket=Join('.', [ variables['LogBucketName'].ref, 's3.amazonaws.com' ])), NoValue), PriceClass=variables['PriceClass'].ref, Enabled=True, WebACLId=If('WAFNameSpecified', variables['WAFWebACL'].ref, NoValue), ViewerCertificate=If( 'AcmCertSpecified', cloudfront.ViewerCertificate( AcmCertificateArn=variables['AcmCertificateArn']. ref, # noqa SslSupportMethod='sni-only'), NoValue)))) template.add_output( Output('CFDistributionId', Description='CloudFront distribution ID', Value=cfdistribution.ref())) template.add_output( Output('CFDistributionDomainName', Description='CloudFront distribution domain name', Value=cfdistribution.get_att('DomainName')))
cloudfront.Distribution( 'Distribution', DistributionConfig=cloudfront.DistributionConfig( Aliases=[Ref(domain)], CacheBehaviors=[ cloudfront.CacheBehavior( Compress=True, ForwardedValues=cloudfront.ForwardedValues( Cookies=cloudfront.Cookies(Forward='none'), QueryString=False, ), PathPattern=Ref(media_pattern), TargetOriginId=Sub( '${domain}${path}', **{ 'domain': Ref(media_domain), 'path': Ref(media_path) }), ViewerProtocolPolicy='redirect-to-https', ) ], Comment=Sub('${AWS::StackName}'), DefaultCacheBehavior=cloudfront.DefaultCacheBehavior( Compress=True, ForwardedValues=cloudfront.ForwardedValues( Cookies=cloudfront.Cookies(Forward='none'), QueryString=False, ), TargetOriginId=Sub( '${domain}${path}', **{ 'domain': Ref(static_domain), 'path': Ref(static_path) }), ViewerProtocolPolicy='redirect-to-https', ), Enabled=True, Origins=[ cloudfront.Origin( Id=Sub( '${domain}${path}', **{ 'domain': Ref(static_domain), 'path': Ref(static_path) }), DomainName=Ref(static_domain), OriginPath=Ref(static_path), CustomOriginConfig=cloudfront.CustomOrigin( OriginProtocolPolicy='https-only'), ), cloudfront.Origin( Id=Sub( '${domain}${path}', **{ 'domain': Ref(media_domain), 'path': Ref(media_path) }), DomainName=Ref(media_domain), OriginPath=Ref(media_path), CustomOriginConfig=cloudfront.CustomOrigin( OriginProtocolPolicy='https-only'), ), ], PriceClass='PriceClass_100', ViewerCertificate=cloudfront.ViewerCertificate( AcmCertificateArn=Ref(certificate), SslSupportMethod='sni-only', ))))
cf.Distribution( 'cdnDistribution{}'.format(src_domain.replace('.', '0')), DependsOn='cdnCertificate{}'.format(src_domain.replace('.', '0')), DistributionConfig=cf.DistributionConfig( Comment='{} - {}'.format(env, cdn_domain), Enabled=True, PriceClass='PriceClass_All', HttpVersion='http2', Origins=[ cdnOrigin, ], Aliases=[cdn_domain, alternate_name], ViewerCertificate=cf.ViewerCertificate( AcmCertificateArn=Ref(cdnCertificate), SslSupportMethod='sni-only', MinimumProtocolVersion='TLSv1.2_2018', ), DefaultCacheBehavior=cf.DefaultCacheBehavior( AllowedMethods=['GET', 'HEAD', 'OPTIONS'], CachedMethods=['GET', 'HEAD'], ViewerProtocolPolicy='redirect-to-https', TargetOriginId='{}-{}-{}'.format(env_l, app_group_l, src_domain), ForwardedValues=cf.ForwardedValues( Headers=["Accept-Encoding"], QueryString=True, ), MinTTL=0, MaxTTL=int(max_ttl[0]), DefaultTTL=int(default_ttl[0]), SmoothStreaming=False, Compress=True), CustomErrorResponses=[ cf.CustomErrorResponse( ErrorCachingMinTTL='0', ErrorCode='403', ), cf.CustomErrorResponse( ErrorCachingMinTTL='0', ErrorCode='404', ), cf.CustomErrorResponse( ErrorCachingMinTTL='0', ErrorCode='500', ), cf.CustomErrorResponse( ErrorCachingMinTTL='0', ErrorCode='501', ), cf.CustomErrorResponse( ErrorCachingMinTTL='0', ErrorCode='502', ), cf.CustomErrorResponse( ErrorCachingMinTTL='0', ErrorCode='503', ), cf.CustomErrorResponse( ErrorCachingMinTTL='0', ErrorCode='504', ), ], ), Tags=DefaultTags))
def render_cloudfront(context, template, origin_hostname): if not context['cloudfront']['origins']: ensure( context['full_hostname'], "A public hostname is required to be pointed at by the Cloudfront CDN" ) allowed_cnames = context['cloudfront']['subdomains'] + context[ 'cloudfront']['subdomains-without-dns'] def _cookies(cookies): if cookies: return cloudfront.Cookies(Forward='whitelist', WhitelistedNames=cookies) return cloudfront.Cookies(Forward='none') if context['cloudfront']['origins']: origins = [ cloudfront.Origin(DomainName=o['hostname'], Id=o_id, CustomOriginConfig=cloudfront.CustomOrigin( HTTPSPort=443, OriginProtocolPolicy='https-only')) for o_id, o in context['cloudfront']['origins'].items() ] origin = origins[0].Id else: origin = CLOUDFRONT_TITLE + 'Origin' origins = [ cloudfront.Origin(DomainName=origin_hostname, Id=origin, CustomOriginConfig=cloudfront.CustomOrigin( HTTPSPort=443, OriginProtocolPolicy='https-only')) ] props = { 'Aliases': allowed_cnames, 'CacheBehaviors': [], 'DefaultCacheBehavior': cloudfront.DefaultCacheBehavior( AllowedMethods=[ 'DELETE', 'GET', 'HEAD', 'OPTIONS', 'PATCH', 'POST', 'PUT' ], CachedMethods=['GET', 'HEAD'], Compress=context['cloudfront']['compress'], DefaultTTL=context['cloudfront']['default-ttl'], TargetOriginId=origin, ForwardedValues=cloudfront.ForwardedValues( Cookies=_cookies(context['cloudfront']['cookies']), Headers=context['cloudfront'] ['headers'], # 'whitelisted' headers QueryString=True), ViewerProtocolPolicy='redirect-to-https', ), 'Enabled': True, 'HttpVersion': 'http2', 'Origins': origins, 'ViewerCertificate': cloudfront.ViewerCertificate( IamCertificateId=context['cloudfront']['certificate_id'], SslSupportMethod='sni-only') } def _cache_behavior(origin_id, pattern, headers=None, cookies=None): return cloudfront.CacheBehavior( TargetOriginId=origin_id, DefaultTTL=context['cloudfront']['default-ttl'], ForwardedValues=cloudfront.ForwardedValues( Cookies=_cookies(cookies), QueryString=False, Headers=headers if headers else []), PathPattern=pattern, ViewerProtocolPolicy='allow-all', ) if context['cloudfront']['errors']: props['Origins'].append( cloudfront.Origin( DomainName=context['cloudfront']['errors']['domain'], # TODO: constant Id=CLOUDFRONT_ERROR_ORIGIN_ID, # no advantage in using cloudfront.S3Origin for public buckets CustomOriginConfig=cloudfront.CustomOrigin( HTTPSPort=443, OriginProtocolPolicy='https-only' if context['cloudfront']['errors']['protocol'] == 'https' else 'http-only'))) props['CacheBehaviors'].append( _cache_behavior( CLOUDFRONT_ERROR_ORIGIN_ID, context['cloudfront']['errors']['pattern'], )) props['CustomErrorResponses'] = [ cloudfront.CustomErrorResponse(ErrorCode=code, ResponseCode=code, ResponsePagePath=page) for code, page in context['cloudfront']['errors']['codes'].items() ] if context['cloudfront']['logging']: props['Logging'] = cloudfront.Logging( Bucket="%s.s3.amazonaws.com" % context['cloudfront']['logging']['bucket'], Prefix="%s/" % context['stackname']) if context['cloudfront']['origins']: props['CacheBehaviors'].extend([ _cache_behavior(o_id, o['pattern'], headers=o['headers'], cookies=o['cookies']) for o_id, o in context['cloudfront']['origins'].items() if o['pattern'] ]) template.add_resource( cloudfront.Distribution( CLOUDFRONT_TITLE, DistributionConfig=cloudfront.DistributionConfig(**props))) for dns in external_dns_cloudfront(context): template.add_resource(dns)
cloudfront.Distribution( "ExampleDistribution", DistributionConfig=cloudfront.DistributionConfig( Comment="Example distribution for restricted access", Aliases=[ Join('.', [Ref(param_label), Ref(param_hosted_zone_name)]) ], Enabled=True, IPV6Enabled=True, HttpVersion='http2', PriceClass='PriceClass_100', Origins=[ cloudfront.Origin( # Your usual config goes here Id="RealOrigin", DomainName="ifconfig.io", CustomOriginConfig=cloudfront.CustomOrigin( HTTPPort=80, HTTPSPort=443, OriginProtocolPolicy='https-only', OriginSSLProtocols=['TLSv1.2', 'TLSv1.1', 'TLSv1']), ), cloudfront.Origin( # You need to add this origin Id="Authorizer", DomainName=ImportValue( Sub('${' + authorizer_stack.title + '}-domain-name')), CustomOriginConfig=cloudfront.CustomOrigin( HTTPPort=80, HTTPSPort=443, OriginProtocolPolicy='https-only', OriginSSLProtocols=['TLSv1.2', 'TLSv1.1', 'TLSv1']), ), ], CacheBehaviors=[ cloudfront.CacheBehavior( # The authorizer hijacks a set of URL-paths from your website. All paths are prefixed # with `/auth-<UUID>/`, so they are very unlikely to collide with your content. # Insert this as the first Behaviour. PathPattern=Join('', [ ImportValue( Sub('${' + authorizer_stack.title + '}-magic-path')), '/*', ]), ViewerProtocolPolicy='https-only', TargetOriginId='Authorizer', ForwardedValues=cloudfront.ForwardedValues( QueryString=True, Cookies=cloudfront.Cookies( Forward='all', # Needed to allow Set-Cookie:-headers ), ), MinTTL=0, DefaultTTL=0, MaxTTL=0, ) ], DefaultCacheBehavior=cloudfront.DefaultCacheBehavior( ViewerProtocolPolicy= 'redirect-to-https', # HTTPS required. Cookies need to be sent securely LambdaFunctionAssociations=[ cloudfront.LambdaFunctionAssociation( EventType='viewer-request', LambdaFunctionARN=Ref(param_authorizer_lae_arn)), ], # Rest of config as per your needs TargetOriginId='RealOrigin', ForwardedValues=cloudfront.ForwardedValues( QueryString=True, Cookies=cloudfront.Cookies( Forward= 'all', # Don't do this. Done here to validate cookie-removal logic ), ), ), ViewerCertificate=cloudfront.ViewerCertificate( AcmCertificateArn=If(use_cert_cond, Ref(acm_cert), Ref(AWS_NO_VALUE)), SslSupportMethod=If(use_cert_cond, 'sni-only', Ref(AWS_NO_VALUE)), CloudFrontDefaultCertificate=If(use_cert_cond, Ref(AWS_NO_VALUE), True), ), ), Tags=GetAtt(cloudformation_tags, 'TagList'), ))