template.yaml

AWSTemplateFormatVersion: "2010-09-09"
Transform: AWS::Serverless-2016-10-31
Description: >
  Project Daylily: SAM Template To Create a Step Function using SNS (Simple Notification Service) and Wait state.

Parameters:
  ###################################### Project Name and Environment ##############################
  ProjectName:
    Default: daylily
    Type: String
    Description: "The Project Name."
  Environment:
    Default: devl
    Type: String
    Description: "The Environment Name."
  CodeRepoS3Bucket:
    Default: subhamay-projects-repository-us-east-1
    Type: String
    Description: The S3 bucket storing the code repo (nested CloudFormation templates)
  ###################################### KMS Key ###################################################
  KmsMasterKeyAlias:
    Default: "SB-KMS"
    Type: String
    Description: "The KMS Master Key Alias To Be Used For Server Side Encryption."
  KmsMasterKeyId:
    Default: "e4c733c5-9fbe-4a90-bda1-6f0362bc9b89"
    Type: String
    Description: "The KMS Key Id Used For Encryption."
  ###################################### SNS Topic With Email Subscription #########################
  SNSTopicBaseName:
    Default: "daylily-sns-topic"
    Type: String
    Description: "The Base Name Of The Sns Topic. The Region And Environment Will Be Added As Suffix By The Template."
  SNSTopicDisplayName:
    Default: "Daylily SNS Topic used in the step function using SNS and Wait state."
    Type: String
    Description: "The SNS Topic Display Name."
  SNSSubscriptionEmail:
    Default: "subhamay.aws@mailinator.com"
    Type: String
    Description: "The Subscription Email For The Sns Topic."
  #################################### State Machine ###########################################
  StepFunctionBaseName:
    Default: daylily-state-machine
    Type: String
    Description: "The Base Name The Lambda Function. The Region And Environment Will Be Added As Suffix By The Template."
  StepFunctionExecutionRoleName:
    Default: daylily-step-function-role
    Type: String
    Description: "The Execution Role Of The State Machine."
  StepFunctionExecutionPolicyName:
    Default: daylily-step-function-policy
    Type: String
    Description: "The Execution Policy Of The State Machine."
Resources:
  ###################################### SNS Topic With Email Subscription #########################
  DaylilySNSTopic:
    DeletionPolicy: Delete
    UpdateReplacePolicy: Retain
    Type: AWS::CloudFormation::Stack
    Properties:
      TemplateURL: !Sub "https://${CodeRepoS3Bucket}.s3.amazonaws.com/0086-daylily/cft/nested-stacks/sns-stack.yaml"
      Parameters:  
        ProjectName: !Ref ProjectName
        Environment: !Ref Environment
        TopicBaseName: !Ref SNSTopicBaseName
        TopicDisplayName: !Ref SNSTopicDisplayName 
        SubscriptionEmail: !Ref SNSSubscriptionEmail
        KmsMasterKeyAlias: !Ref KmsMasterKeyAlias
      TimeoutInMinutes: 15
  ###################################### State Machine Execution Role ##############################
  DaylilyIAMExecutionRole:
    DeletionPolicy: Delete
    UpdateReplacePolicy: Retain
    Type: AWS::CloudFormation::Stack
    Properties:
      TemplateURL: !Sub "https://${CodeRepoS3Bucket}.s3.amazonaws.com/0086-daylily/cft/nested-stacks/iam-role-stack.yaml"
      Parameters:  
        ProjectName: !Ref ProjectName
        Environment: !Ref Environment
        StepFunctionExecutionRoleName: !Ref StepFunctionExecutionRoleName
        StepFunctionExecutionPolicyName: !Ref StepFunctionExecutionPolicyName
        SNSTopicBaseName: !Ref SNSTopicBaseName
        KmsMasterKeyId: !Ref KmsMasterKeyId
      TimeoutInMinutes: 15
  ###################################### State Machine #############################################
  DaylilyStateMachine:
    Type: AWS::Serverless::StateMachine 
    Properties:
      Name: !Sub '${StepFunctionBaseName}-${Environment}-${AWS::Region}'
      DefinitionUri: statemachine/state-machine.asl.json
      Role: !GetAtt DaylilyIAMExecutionRole.Outputs.StepFunctionExecutionRoleArn
      DefinitionSubstitutions:
        SNSTopicArn: !GetAtt DaylilySNSTopic.Outputs.SNSTopicArn
      Tags:
        ProjectName: !Ref ProjectName
        Environment: !Ref Environment

Outputs:
  DaylilySNSTopicArn:
    Description: "Daylily SNS Topic Arn"
    Value: !GetAtt DaylilySNSTopic.Outputs.SNSTopicArn
  DaylilySNSSubscriptionArn:
    Description: "Daylily SNS Subscription Arn"
    Value: !GetAtt DaylilySNSTopic.Outputs.SNSSubscriptionArn
  DaylilyStateMachineArn:
    Description: "Daylily State machine ARN"
    Value: !GetAtt DaylilyStateMachine.Arn
  DaylilyStateMachineRoleArn:
    Description: "IAM Role created for Stock Trading State machine based on the specified SAM Policy Templates"
    Value: !GetAtt DaylilyIAMExecutionRole.Outputs.StepFunctionExecutionRoleArn