def __init__(self, **kwargs): super().__init__(**kwargs) self.Enabled = 'True' DefaultCacheBehavior = CFDefaultCacheBehavior( 'CloudFrontCacheBehaviors0', key=cfg.CloudFrontCacheBehaviors[0]) self.DefaultCacheBehavior = DefaultCacheBehavior self.HttpVersion = get_endvalue('CloudFrontHttpVersion') self.Logging = If( 'CloudFrontLogging', clf.Logging( Bucket=Sub(f'{cfg.BucketLogs}.s3.amazonaws.com'), Prefix=Sub('${EnvRole}.${AWS::StackName}/'), ), Ref('AWS::NoValue')) self.PriceClass = 'PriceClass_100' self.ViewerCertificate = clf.ViewerCertificate() self.ViewerCertificate.AcmCertificateArn = If( 'CloudFrontAcmCertificate', get_endvalue('GlobalCertificateArn'), Ref('AWS::NoValue')) self.ViewerCertificate.CloudFrontDefaultCertificate = If( 'CloudFrontAcmCertificate', Ref('AWS::NoValue'), 'True') self.ViewerCertificate.SslSupportMethod = If( 'CloudFrontAcmCertificate', 'sni-only', Ref('AWS::NoValue')) self.ViewerCertificate.MinimumProtocolVersion = If( 'CloudFrontAcmCertificate', get_endvalue('CloudFrontMinimumProtocolVersion'), Ref('AWS::NoValue')) self.WebACLId = get_endvalue('CloudFrontWebACLId', condition=True)
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 add_acm_cert(self) -> Union[cloudfront.ViewerCertificate, Ref]: """Add ACM cert.""" if self.acm_certificate_specified: return cloudfront.ViewerCertificate( AcmCertificateArn=self.variables["AcmCertificateArn"], SslSupportMethod="sni-only", ) return NoValue
def add_acm_cert(self): # type: () -> Union[cloudfront.ViewerCertificate, NoValue] """Add ACM cert.""" if self.acm_certificate_specified: return cloudfront.ViewerCertificate( AcmCertificateArn=self.get_variables()['AcmCertificateArn'], SslSupportMethod='sni-only') return NoValue
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
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 create_template(self): """Create template (main function called by Stacker).""" template = self.template variables = self.get_variables() template.set_version('2010-09-09') template.set_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() ) ) # If custom associations defined, use them if variables['lambda_function_associations']: lambda_function_associations = [ cloudfront.LambdaFunctionAssociation( EventType=x['type'], LambdaFunctionARN=x['arn'] ) for x in variables['lambda_function_associations'] ] else: # otherwise fallback to pure CFN condition lambda_function_associations = If( 'DirectoryIndexSpecified', [cloudfront.LambdaFunctionAssociation( EventType='origin-request', LambdaFunctionARN=cfdirectoryindexrewritever.ref() )], NoValue ) cfdistribution = template.add_resource( get_cf_distribution_class()( 'CFDistribution', DependsOn=allowcfaccess.title, DistributionConfig=get_cf_distro_conf_class()( Aliases=If( 'AliasesSpecified', variables['Aliases'].ref, NoValue ), Origins=[ get_cf_origin_class()( DomainName=Join( '.', [bucket.ref(), 's3.amazonaws.com']), S3OriginConfig=get_s3_origin_conf_class()( 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=lambda_function_associations, # noqa 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.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'), )) hosted_zone_map = "HostedZoneMap" template.add_mapping(hosted_zone_map, cfnutils.mappings.r53_hosted_zone_id()) template.add_resource( route53.RecordSetType( "DomainA", AliasTarget=route53.AliasTarget( DNSName=GetAtt(example_distribution, 'DomainName'), HostedZoneId=FindInMap(hosted_zone_map, Ref(AWS_REGION), 'CloudFront'),
), 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' ) ) ) ) backend_distribution = template.add_resource( cloudfront.Distribution( 'BackendDistribution', DistributionConfig=cloudfront.DistributionConfig( Aliases=[ Ref(backend_cname) ], CacheBehaviors=[ cloudfront.CacheBehavior( AllowedMethods=['HEAD', 'GET'],
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')))
), TargetOriginId=Join('-', ['S3', Ref(bucket_resource)]), ViewerProtocolPolicy='redirect-to-https' ), DefaultRootObject='index.html', Enabled=True, IPV6Enabled=True, Origins=[ cloudfront.Origin( DomainName=GetAtt(bucket_resource, 'DomainName'), Id=Join('-', ['S3', Ref(bucket_resource)]), S3OriginConfig=cloudfront.S3Origin() ) ], ViewerCertificate=cloudfront.ViewerCertificate( AcmCertificateArn=Ref(certificate_arn_parameter), SslSupportMethod='sni-only' ) ) ) ) ci_user_resource = template.add_resource( iam.User( 'CiUser', UserName=ci_user_name_variable, Policies=[ iam.Policy( PolicyName='CiUserPolicy', PolicyDocument={ 'Version': '2012-10-17', 'Statement': [
# 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 # ),
cdnDistribution = t.add_resource( 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]),
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 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)
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'), )) hosted_zone_map = "HostedZoneMap" template.add_mapping(hosted_zone_map, cfnutils.mappings.r53_hosted_zone_id()) template.add_resource( route53.RecordSetType( "DomainA", AliasTarget=route53.AliasTarget( DNSName=GetAtt(example_distribution, 'DomainName'),