template.yaml

AWSTemplateFormatVersion: '2010-09-09'
Transform: AWS::Serverless-2016-10-31
Description: >
  AWS SAM Template for aws-codepipeline-deploy-status-badge-generator,
  which listens on CodePipeline CloudWatch State Execution Change Events
  to spot when a deployment starts and stops to generate a badge SVG file
  that can be added to GitHub for example

Resources:
  
  DeploymentInformationTable:
    Type: AWS::DynamoDB::Table
    Properties:
      TableName: CodePipelineDeploymentInformation
      AttributeDefinitions:
        - AttributeName: pipelineName
          AttributeType: S
      KeySchema:
        - AttributeName: pipelineName
          KeyType: HASH
      ProvisionedThroughput:
        ReadCapacityUnits: 5
        WriteCapacityUnits: 5

  BadgeGeneratorApi:
    Type: AWS::Serverless::Api
    Properties:
      StageName: v1
      Cors: "'*'"

  BadgeGenerator:
    Type: AWS::Serverless::Function
    Properties:
      FunctionName: aws-codepipeline-deploy-status-badge-generator-api
      CodeUri: aws-codepipeline-deploy-status-badge-generator-api/
      Handler: app.handler
      Runtime: nodejs12.x
      Environment:
        Variables:
          DYANMO_DB_TABLE_NAME: !Ref DeploymentInformationTable
      Policies:
        - Statement:
          - Effect: Allow
            Action:
              - 'dynamodb:*'
            Resource:
              - !GetAtt DeploymentInformationTable.Arn
      Events:
        GetCommitId:
          Type: Api
          Properties:
            RestApiId: !Ref BadgeGeneratorApi
            Method: GET
            Path: /pipeline/{pipelineName}/commit/id
        GetCommitUrl:
          Type: Api
          Properties:
            RestApiId: !Ref BadgeGeneratorApi
            Method: GET
            Path: /pipeline/{pipelineName}/commit/url
        GetStatus:
          Type: Api
          Properties:
            RestApiId: !Ref BadgeGeneratorApi
            Method: GET
            Path: /pipeline/{pipelineName}/status
        Update:
          Type: Api
          Properties:
            RestApiId: !Ref BadgeGeneratorApi
            Path: /pipeline/{pipelineName}
            Method: POST
            Auth:
              ApiKeyRequired: true



  DeploymenInformationUpdater:
    Type: AWS::Serverless::Function
    Properties:
      FunctionName: aws-codepipeline-deploy-status-badge-generator-updater
      CodeUri: aws-codepipeline-deploy-status-badge-generator-updater/
      Handler: app.handler
      Runtime: nodejs12.x
      Environment:
        Variables:
          DYANMO_DB_TABLE_NAME: !Ref DeploymentInformationTable
      Policies:
        - Statement:
          - Effect: Allow
            Action:
              - codepipeline:ListActionExecutions
            Resource: '*'
        - Statement:
          - Effect: Allow
            Action:
              - 'dynamodb:*'
            Resource:
              - !GetAtt DeploymentInformationTable.Arn
      Events:
        CloudWatchCodePipeline:
          Type: EventBridgeRule
          Properties:
            Pattern:
              source: 
                - "aws.codepipeline"
              detail-type: 
                - "CodePipeline Stage Execution State Change"
              detail:
                state:
                  - STARTED
                  - FAILED
                  - SUCCEEDED
            InputPath: "$.detail"