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unit-challenge-template.json
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{
"Parameters": {
"LambdaFunctionsZipFile": {
"Type": "String",
"Default": "unit-challenge-function.zip",
"Description": "Zip file with Lambda function to be executed after s3 notification"
},
"ChallengeBucket": {
"Type": "String",
"Default": "unit-challenge-ricardo",
"Description": "Bucket name used in the challenge"
},
"OAuthToken": {
"Type": "String",
"Description": "Guit OAuthToken"
}
},
"Resources": {
"CodePipelineArtifactStoreBucket": {
"Type": "AWS::S3::Bucket",
"Properties": {
"BucketName": {
"Ref": "ChallengeBucket"
}
}
},
"AppPipeline": {
"Type": "AWS::CodePipeline::Pipeline",
"Properties": {
"Name": "github-events-pipeline",
"RoleArn": {
"Fn::GetAtt": [
"CodePipelineServiceRole",
"Arn"
]
},
"Stages": [
{
"Name": "Source",
"Actions": [
{
"Name": "SourceAction",
"ActionTypeId": {
"Category": "Source",
"Owner": "ThirdParty",
"Version": 1,
"Provider": "GitHub"
},
"OutputArtifacts": [
{
"Name": "SourceOutput"
}
],
"Configuration": {
"Branch": "master",
"OAuthToken": {
"Ref": "OAuthToken"
},
"Owner": "li0nking",
"PollForSourceChanges": "true",
"Repo": "unit-challenge"
},
"RunOrder": 1
}
]
},
{
"Name": "Deploy",
"Actions": [
{
"Name": "Deploy",
"InputArtifacts": [
{
"Name": "SourceOutput"
}
],
"ActionTypeId": {
"Category": "Deploy",
"Owner": "AWS",
"Version": 1,
"Provider": "S3"
},
"Configuration": {
"BucketName": {
"Ref": "ChallengeBucket"
},
"Extract": "true"
},
"RunOrder": 1,
"OutputArtifacts": []
}
]
}
],
"ArtifactStore": {
"Type": "S3",
"Location": {
"Ref": "ChallengeBucket"
}
}
}
},
"ProcessS3FileTextRole": {
"Type": "AWS::IAM::Role",
"Properties": {
"AssumeRolePolicyDocument": {
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Principal": {
"Service": [
"lambda.amazonaws.com"
]
},
"Action": "sts:AssumeRole"
}
]
},
"Path": "/",
"Policies": [
{
"PolicyName": "AllowLambdaReadWriteS3AndLogs",
"PolicyDocument": {
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": [
"s3:GetObject",
"s3:PutObject",
"s3:DeleteObject"
],
"Resource": {
"Fn::Sub": "arn:aws:s3:::${ChallengeBucket}/*"
}
},
{
"Effect": "Allow",
"Action": [
"logs:CreateLogGroup",
"logs:CreateLogStream",
"logs:PutLogEvents"
],
"Resource": {
"Fn::Sub": "arn:aws:logs:${AWS::Region}:${AWS::AccountId}:log-group:/aws/lambda/*"
}
}
]
}
}
]
}
},
"CodePipelineServiceRole": {
"Type": "AWS::IAM::Role",
"Properties": {
"AssumeRolePolicyDocument": {
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Principal": {
"Service": [
"codepipeline.amazonaws.com"
]
},
"Action": "sts:AssumeRole"
}
]
},
"Path": "/",
"Policies": [
{
"PolicyName": "AWSAllowS3Write",
"PolicyDocument": {
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": [
"s3:getObject",
"s3:PutObject"
],
"Resource": {
"Fn::Sub": "arn:aws:s3:::${ChallengeBucket}/*"
}
}
]
}
}
]
}
},
"ProcessS3FileTextFunction": {
"Type": "AWS::Lambda::Function",
"DependsOn": "myWaitCondition",
"Properties": {
"Code": {
"S3Bucket": {
"Ref": "ChallengeBucket"
},
"S3Key": {
"Ref": "LambdaFunctionsZipFile"
}
},
"Handler": "index.handler",
"Role": {
"Fn::GetAtt": [
"ProcessS3FileTextRole",
"Arn"
]
},
"Runtime": "nodejs12.x",
"Timeout": 5
}
},
"AllowLambdaS3NotificationsRole": {
"Type": "AWS::IAM::Role",
"Properties": {
"AssumeRolePolicyDocument": {
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Principal": {
"Service": [
"lambda.amazonaws.com"
]
},
"Action": [
"sts:AssumeRole"
]
}
]
},
"Path": "/",
"Policies": [
{
"PolicyName": "AllowGetPutBucketNotification",
"PolicyDocument": {
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": [
"s3:GetBucketNotification",
"s3:PutBucketNotification"
],
"Resource": {
"Fn::Sub": "arn:aws:s3:::${ChallengeBucket}"
}
},
{
"Effect": "Allow",
"Action": [
"logs:CreateLogGroup",
"logs:CreateLogStream",
"logs:PutLogEvents"
],
"Resource": "arn:aws:logs:*:*:*"
}
]
}
}
]
}
},
"AddS3LambdaNotificationFunction": {
"Type": "AWS::Lambda::Function",
"Properties": {
"Handler": "index.lambda_handler",
"Role": {
"Fn::GetAtt": [
"AllowLambdaS3NotificationsRole",
"Arn"
]
},
"Code": {
"ZipFile": "\nfrom __future__ import print_function\nimport json\nimport boto3\nimport cfnresponse\n\nSUCCESS = \"SUCCESS\"\nFAILED = \"FAILED\"\n\nprint('Loading function')\ns3 = boto3.resource('s3')\n\ndef lambda_handler(event, context):\n print(\"Received event: \" + json.dumps(event, indent=2))\n responseData={}\n try:\n if event['RequestType'] == 'Create' or event['RequestType'] == 'Update':\n print(\"Request Type:\",event['RequestType'])\n LambdaArn=event['ResourceProperties']['LambdaArn']\n Bucket=event['ResourceProperties']['Bucket']\n add_notification(LambdaArn, Bucket)\n responseData={'Bucket':Bucket}\n print(\"Sending response to custom resource\")\n responseStatus = 'SUCCESS'\n except Exception as e:\n print('Failed to process:', e)\n responseStatus = 'FAILURE'\n responseData = {'Failure': 'Something bad happened.'}\n cfnresponse.send(event, context, responseStatus, responseData)\n\ndef add_notification(LambdaArn, Bucket):\n bucket_notification = s3.BucketNotification(Bucket)\n response = bucket_notification.put(\n NotificationConfiguration={\n 'LambdaFunctionConfigurations': [\n {\n 'LambdaFunctionArn': LambdaArn,\n 'Events': [\n 's3:ObjectCreated:*'\n ],\n 'Filter': {\n 'Key':\n {\n 'FilterRules': [ \n {\n 'Name': \"suffix\",\n 'Value': \".txt\"\n } \n ]\n }\n }\n }\n ]\n }\n )\n print(\"Put request completed....\")\n"
},
"Runtime": "python3.6",
"Timeout": 50
}
},
"LambdaInvokePermission": {
"Type": "AWS::Lambda::Permission",
"Properties": {
"FunctionName": {
"Fn::GetAtt": [
"ProcessS3FileTextFunction",
"Arn"
]
},
"Action": "lambda:InvokeFunction",
"Principal": "s3.amazonaws.com",
"SourceAccount": {
"Ref": "AWS::AccountId"
},
"SourceArn": {
"Fn::Sub": "arn:aws:s3:::${ChallengeBucket}"
}
}
},
"myWaitHandle": {
"Type": "AWS::CloudFormation::WaitConditionHandle",
"Properties": {}
},
"myWaitCondition": {
"Type": "AWS::CloudFormation::WaitCondition",
"DependsOn": "AppPipeline",
"Properties": {
"Handle": {
"Ref": "myWaitHandle"
},
"Timeout": "60",
"Count": "0"
}
},
"LambdaTrigger": {
"Type": "Custom::LambdaTrigger",
"Properties": {
"ServiceToken": {
"Fn::GetAtt": [
"AddS3LambdaNotificationFunction",
"Arn"
]
},
"LambdaArn": {
"Fn::GetAtt": [
"ProcessS3FileTextFunction",
"Arn"
]
},
"Bucket": {
"Ref": "ChallengeBucket"
}
}
}
}
}