def to_cloudformation(self, **kwargs):
"""Returns the Lambda EventSourceMapping to which this pull event corresponds. Adds the appropriate managed
policy to the function's execution role, if such a role is provided.
:param dict kwargs: a dict containing the execution role generated for the function
:returns: a list of vanilla CloudFormation Resources, to which this pull event expands
:rtype: list
"""
function = kwargs.get('function')
if not function:
raise TypeError("Missing required keyword argument: function")
resources = []
lambda_eventsourcemapping = LambdaEventSourceMapping(self.logical_id)
resources.append(lambda_eventsourcemapping)
try:
# Name will not be available for Alias resources
function_name_or_arn = function.get_runtime_attr("name")
except NotImplementedError:
function_name_or_arn = function.get_runtime_attr("arn")
if not self.Stream and not self.Queue:
raise InvalidEventException(
self.relative_id,
"No Queue (for SQS) or Stream (for Kinesis or DynamoDB) provided."
)
if self.Stream and not self.StartingPosition:
raise InvalidEventException(
self.relative_id,
"StartingPosition is required for Kinesis and DynamoDB.")
lambda_eventsourcemapping.FunctionName = function_name_or_arn
lambda_eventsourcemapping.EventSourceArn = self.Stream or self.Queue
lambda_eventsourcemapping.StartingPosition = self.StartingPosition
lambda_eventsourcemapping.BatchSize = self.BatchSize
lambda_eventsourcemapping.Enabled = self.Enabled
lambda_eventsourcemapping.MaximumBatchingWindowInSeconds = self.MaximumBatchingWindowInSeconds
if 'Condition' in function.resource_attributes:
lambda_eventsourcemapping.set_resource_attribute(
'Condition', function.resource_attributes['Condition'])
if 'role' in kwargs:
self._link_policy(kwargs['role'])
return resources
def to_cloudformation(self, **kwargs):
"""Returns the Lambda EventSourceMapping to which this pull event corresponds. Adds the appropriate managed
policy to the function's execution role, if such a role is provided.
:param dict kwargs: a dict containing the execution role generated for the function
:returns: a list of vanilla CloudFormation Resources, to which this pull event expands
:rtype: list
"""
function = kwargs.get('function')
if not function:
raise TypeError("Missing required keyword argument: function")
resources = []
lambda_eventsourcemapping = LambdaEventSourceMapping(self.logical_id)
resources.append(lambda_eventsourcemapping)
try:
# Name will not be available for Alias resources
function_name_or_arn = function.get_runtime_attr("name")
except NotImplementedError:
function_name_or_arn = function.get_runtime_attr("arn")
if not self.Stream and not self.Queue:
raise InvalidEventException(
self.relative_id, "No Queue (for SQS) or Stream (for Kinesis or DynamoDB) provided.")
if self.Stream and not self.StartingPosition:
raise InvalidEventException(
self.relative_id, "StartingPosition is required for Kinesis and DynamoDB.")
lambda_eventsourcemapping.FunctionName = function_name_or_arn
lambda_eventsourcemapping.EventSourceArn = self.Stream or self.Queue
lambda_eventsourcemapping.StartingPosition = self.StartingPosition
lambda_eventsourcemapping.BatchSize = self.BatchSize
if 'role' in kwargs:
self._link_policy(kwargs['role'])
return resources
def to_cloudformation(self, **kwargs):
"""Returns the Lambda EventSourceMapping to which this pull event corresponds. Adds the appropriate managed
policy to the function's execution role, if such a role is provided.
:param dict kwargs: a dict containing the execution role generated for the function
:returns: a list of vanilla CloudFormation Resources, to which this pull event expands
:rtype: list
"""
function = kwargs.get('function')
if not function:
raise TypeError("Missing required keyword argument: function")
resources = []
lambda_eventsourcemapping = LambdaEventSourceMapping(self.logical_id)
resources.append(lambda_eventsourcemapping)
try:
# Name will not be available for Alias resources
function_name_or_arn = function.get_runtime_attr("name")
except NotImplementedError:
function_name_or_arn = function.get_runtime_attr("arn")
lambda_eventsourcemapping.FunctionName = function_name_or_arn
lambda_eventsourcemapping.EventSourceArn = self.Stream
lambda_eventsourcemapping.StartingPosition = self.StartingPosition
lambda_eventsourcemapping.BatchSize = self.BatchSize
if 'role' in kwargs:
self._link_policy(kwargs['role'])
return resources
def to_cloudformation(self, **kwargs):
"""Returns the Lambda EventSourceMapping to which this pull event corresponds. Adds the appropriate managed
policy to the function's execution role, if such a role is provided.
:param dict kwargs: a dict containing the execution role generated for the function
:returns: a list of vanilla CloudFormation Resources, to which this pull event expands
:rtype: list
"""
function = kwargs.get("function")
if not function:
raise TypeError("Missing required keyword argument: function")
resources = []
lambda_eventsourcemapping = LambdaEventSourceMapping(self.logical_id)
resources.append(lambda_eventsourcemapping)
try:
# Name will not be available for Alias resources
function_name_or_arn = function.get_runtime_attr("name")
except NotImplementedError:
function_name_or_arn = function.get_runtime_attr("arn")
if not self.Stream and not self.Queue:
raise InvalidEventException(
self.relative_id,
"No Queue (for SQS) or Stream (for Kinesis or DynamoDB) provided."
)
if self.Stream and not self.StartingPosition:
raise InvalidEventException(
self.relative_id,
"StartingPosition is required for Kinesis and DynamoDB.")
lambda_eventsourcemapping.FunctionName = function_name_or_arn
lambda_eventsourcemapping.EventSourceArn = self.Stream or self.Queue
lambda_eventsourcemapping.StartingPosition = self.StartingPosition
lambda_eventsourcemapping.BatchSize = self.BatchSize
lambda_eventsourcemapping.Enabled = self.Enabled
lambda_eventsourcemapping.MaximumBatchingWindowInSeconds = self.MaximumBatchingWindowInSeconds
lambda_eventsourcemapping.MaximumRetryAttempts = self.MaximumRetryAttempts
lambda_eventsourcemapping.BisectBatchOnFunctionError = self.BisectBatchOnFunctionError
lambda_eventsourcemapping.MaximumRecordAgeInSeconds = self.MaximumRecordAgeInSeconds
lambda_eventsourcemapping.ParallelizationFactor = self.ParallelizationFactor
destination_config_policy = None
if self.DestinationConfig:
# `Type` property is for sam to attach the right policies
destination_type = self.DestinationConfig.get("OnFailure").get(
"Type")
# SAM attaches the policies for SQS or SNS only if 'Type' is given
if destination_type:
# delete this field as its used internally for SAM to determine the policy
del self.DestinationConfig["OnFailure"]["Type"]
# the values 'SQS' and 'SNS' are allowed. No intrinsics are allowed
if destination_type not in ["SQS", "SNS"]:
raise InvalidEventException(
self.logical_id,
"The only valid values for 'Type' are 'SQS' and 'SNS'")
if self.DestinationConfig.get("OnFailure") is None:
raise InvalidEventException(
self.logical_id, "'OnFailure' is a required field for "
"'DestinationConfig'")
if destination_type == "SQS":
queue_arn = self.DestinationConfig.get("OnFailure").get(
"Destination")
destination_config_policy = IAMRolePolicies(
).sqs_send_message_role_policy(queue_arn, self.logical_id)
elif destination_type == "SNS":
sns_topic_arn = self.DestinationConfig.get(
"OnFailure").get("Destination")
destination_config_policy = IAMRolePolicies(
).sns_publish_role_policy(sns_topic_arn, self.logical_id)
lambda_eventsourcemapping.DestinationConfig = self.DestinationConfig
if "Condition" in function.resource_attributes:
lambda_eventsourcemapping.set_resource_attribute(
"Condition", function.resource_attributes["Condition"])
if "role" in kwargs:
self._link_policy(kwargs["role"], destination_config_policy)
return resources