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Connor Robertson
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feat: Input transformer for AWS::Serverless::Function.EventBridgeRule (#3283)
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‎samtranslator/internal/schema_source/aws_serverless_function.py

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@@ -333,6 +333,7 @@ class EventBridgeRuleEventProperties(BaseModel):
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Pattern: PassThroughProp = eventbridgeruleeventproperties("Pattern")
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RetryPolicy: Optional[PassThroughProp] = eventbridgeruleeventproperties("RetryPolicy")
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Target: Optional[EventBridgeRuleTarget] = eventbridgeruleeventproperties("Target")
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InputTransformer: Optional[PassThroughProp] # TODO: add docs
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class EventBridgeRuleEvent(BaseModel):

‎samtranslator/model/eventsources/push.py

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@@ -207,6 +207,7 @@ class CloudWatchEvent(PushEventSource):
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"Target": PropertyType(False, IS_DICT),
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"Enabled": PropertyType(False, IS_BOOL),
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"State": PropertyType(False, IS_STR),
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"InputTransformer": PropertyType(False, IS_DICT),
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}
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EventBusName: Optional[PassThrough]
@@ -219,6 +220,7 @@ class CloudWatchEvent(PushEventSource):
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Target: Optional[PassThrough]
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Enabled: Optional[bool]
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State: Optional[PassThrough]
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InputTransformer: Optional[PassThrough]
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@cw_timer(prefix=FUNCTION_EVETSOURCE_METRIC_PREFIX)
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def to_cloudformation(self, **kwargs): # type: ignore[no-untyped-def]
@@ -291,6 +293,9 @@ def _construct_target(self, function, dead_letter_queue_arn=None): # type: igno
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if self.RetryPolicy is not None:
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target["RetryPolicy"] = self.RetryPolicy
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if self.InputTransformer is not None:
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target["InputTransformer"] = self.InputTransformer
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return target
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‎samtranslator/schema/schema.json

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@@ -246854,6 +246854,9 @@
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"markdownDescription": "When you don't want to pass the entire matched event to the target, use the `InputPath` property to describe which part of the event to pass\\. \n*Type*: String \n*Required*: No \n*AWS CloudFormation compatibility*: This property is passed directly to the [`InputPath`](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-events-rule-target.html#cfn-events-rule-target-inputpath) property of an `AWS::Events::Rule Target` resource\\.",
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"title": "InputPath"
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},
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"InputTransformer": {
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"$ref": "#/definitions/PassThroughProp"
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},
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"Pattern": {
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"allOf": [
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{

‎schema_source/sam.schema.json

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@@ -5086,6 +5086,9 @@
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"markdownDescription": "When you don't want to pass the entire matched event to the target, use the `InputPath` property to describe which part of the event to pass\\. \n*Type*: String \n*Required*: No \n*AWS CloudFormation compatibility*: This property is passed directly to the [`InputPath`](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-events-rule-target.html#cfn-events-rule-target-inputpath) property of an `AWS::Events::Rule Target` resource\\.",
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"title": "InputPath"
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},
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"InputTransformer": {
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"$ref": "#/definitions/PassThroughProp"
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},
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"Pattern": {
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"allOf": [
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{

‎tests/translator/input/eventbridgerule_with_input_transformer.yaml

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@@ -0,0 +1,39 @@
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Resources:
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ScheduledFunction:
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Type: AWS::Serverless::Function
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Properties:
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CodeUri: s3://sam-demo-bucket/hello.zip?versionId=3Tcgv52_0GaDvhDva4YciYeqRyPnpIcO
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Handler: hello.handler
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Runtime: python2.7
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Events:
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Schedule:
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Type: Schedule
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Properties:
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Schedule: rate(1 minute)
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TriggeredFunction:
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Type: AWS::Serverless::Function
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Properties:
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CodeUri: s3://sam-demo-bucket/hello.zip?versionId=3Tcgv52_0GaDvhDva4YciYeqRyPnpIcO
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Handler: hello.handler
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Runtime: python2.7
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Events:
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OnTerminate:
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Type: EventBridgeRule
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Properties:
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EventBusName: ExternalEventBridge
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Pattern:
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detail:
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state:
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- terminated
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Target:
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Id: hello345
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InputTransformer:
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InputPathsMap:
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instance: $.detail.instance-id
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state: $.detail.state
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InputTemplate: |
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{
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"instance" : <instance>,
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"state" : <state>,
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"instanceStatus": "instance \"<instance>\" is in <state>"
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}

‎tests/translator/output/aws-cn/eventbridgerule_with_input_transformer.json

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{
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"Resources": {
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"ScheduledFunction": {
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"Properties": {
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"Code": {
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"S3Bucket": "sam-demo-bucket",
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"S3Key": "hello.zip",
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"S3ObjectVersion": "3Tcgv52_0GaDvhDva4YciYeqRyPnpIcO"
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},
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"Handler": "hello.handler",
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"Role": {
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"Fn::GetAtt": [
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"ScheduledFunctionRole",
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"Arn"
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]
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},
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"Runtime": "python2.7",
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"Tags": [
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{
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"Key": "lambda:createdBy",
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"Value": "SAM"
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}
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]
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},
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"Type": "AWS::Lambda::Function"
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},
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"ScheduledFunctionRole": {
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"Properties": {
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"AssumeRolePolicyDocument": {
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"Statement": [
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{
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"Action": [
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"sts:AssumeRole"
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],
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"Effect": "Allow",
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"Principal": {
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"Service": [
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"lambda.amazonaws.com"
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]
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}
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}
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],
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"Version": "2012-10-17"
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},
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"ManagedPolicyArns": [
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"arn:aws-cn:iam::aws:policy/service-role/AWSLambdaBasicExecutionRole"
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],
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"Tags": [
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{
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"Key": "lambda:createdBy",
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"Value": "SAM"
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}
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]
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},
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"Type": "AWS::IAM::Role"
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},
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"ScheduledFunctionSchedule": {
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"Properties": {
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"ScheduleExpression": "rate(1 minute)",
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"Targets": [
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{
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"Arn": {
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"Fn::GetAtt": [
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"ScheduledFunction",
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"Arn"
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]
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},
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"Id": "ScheduledFunctionScheduleLambdaTarget"
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}
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]
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},
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"Type": "AWS::Events::Rule"
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},
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"ScheduledFunctionSchedulePermission": {
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"Properties": {
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"Action": "lambda:InvokeFunction",
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"FunctionName": {
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"Ref": "ScheduledFunction"
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},
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"Principal": "events.amazonaws.com",
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"SourceArn": {
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"Fn::GetAtt": [
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"ScheduledFunctionSchedule",
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"Arn"
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]
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}
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},
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"Type": "AWS::Lambda::Permission"
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},
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"TriggeredFunction": {
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"Properties": {
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"Code": {
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"S3Bucket": "sam-demo-bucket",
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"S3Key": "hello.zip",
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"S3ObjectVersion": "3Tcgv52_0GaDvhDva4YciYeqRyPnpIcO"
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},
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"Handler": "hello.handler",
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"Role": {
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"Fn::GetAtt": [
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"TriggeredFunctionRole",
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"Arn"
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]
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},
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"Runtime": "python2.7",
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"Tags": [
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{
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"Key": "lambda:createdBy",
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"Value": "SAM"
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}
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]
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},
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"Type": "AWS::Lambda::Function"
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},
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"TriggeredFunctionOnTerminate": {
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"Properties": {
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"EventBusName": "ExternalEventBridge",
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"EventPattern": {
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"detail": {
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"state": [
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"terminated"
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]
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}
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},
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"Targets": [
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{
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"Arn": {
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"Fn::GetAtt": [
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"TriggeredFunction",
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"Arn"
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]
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},
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"Id": "hello345",
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"InputTransformer": {
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"InputPathsMap": {
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"instance": "$.detail.instance-id",
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"state": "$.detail.state"
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},
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"InputTemplate": "{\n\"instance\" : <instance>,\n\"state\" : <state>,\n\"instanceStatus\": \"instance \\\"<instance>\\\" is in <state>\"\n}\n"
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}
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}
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]
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},
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"Type": "AWS::Events::Rule"
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},
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"TriggeredFunctionOnTerminatePermission": {
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"Properties": {
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"Action": "lambda:InvokeFunction",
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"FunctionName": {
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"Ref": "TriggeredFunction"
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},
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"Principal": "events.amazonaws.com",
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"SourceArn": {
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"Fn::GetAtt": [
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"TriggeredFunctionOnTerminate",
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"Arn"
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]
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}
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},
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"Type": "AWS::Lambda::Permission"
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},
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"TriggeredFunctionRole": {
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"Properties": {
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"AssumeRolePolicyDocument": {
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"Statement": [
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{
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"Action": [
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"sts:AssumeRole"
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],
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"Effect": "Allow",
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"Principal": {
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"Service": [
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"lambda.amazonaws.com"
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]
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}
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}
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],
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"Version": "2012-10-17"
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},
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"ManagedPolicyArns": [
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"arn:aws-cn:iam::aws:policy/service-role/AWSLambdaBasicExecutionRole"
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],
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"Tags": [
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{
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"Key": "lambda:createdBy",
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"Value": "SAM"
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}
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]
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},
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"Type": "AWS::IAM::Role"
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}
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}
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}

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