# Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
# SPDX-License-Identifier: MIT-0

AWSTemplateFormatVersion: 2010-09-09
Description: >
  This template generates a 2-environment CI/CD Pipeline for sample serverless API application
  Based on https://github.com/aws-samples/cookiecutter-aws-sam-pipeline

Resources:
  CodeRepository:
    Type: AWS::CodeCommit::Repository
    Properties:
      RepositoryName: !Ref AWS::StackName
      RepositoryDescription: Code repository for serverless GraphQL API sample application

  # S3 Bucket for build artifacts
  BuildArtifactsBucket:
    Type: AWS::S3::Bucket
    Properties:
      VersioningConfiguration:
        Status: Enabled
      LifecycleConfiguration:
        Rules:
          - Id: DeleteOldVersions
            Status: Enabled
            NoncurrentVersionExpirationInDays: 30
      BucketEncryption:
        ServerSideEncryptionConfiguration:
          - ServerSideEncryptionByDefault:
              SSEAlgorithm: AES256
      Tags:
        - Key: "Stack"
          Value: !Ref AWS::StackName

  # Application build project for the CodeBuild
  CodeBuildProject:
    Type: AWS::CodeBuild::Project
    Properties:
      Name: !Sub ${AWS::StackName}-ApplicationBuild
      Description: !Sub Build project for the ${AWS::StackName}
      Artifacts:
        Type: CODEPIPELINE
      Environment:
        Type: LINUX_CONTAINER
        ComputeType: BUILD_GENERAL1_SMALL
        Image: aws/codebuild/amazonlinux2-x86_64-standard:4.0
        EnvironmentVariables:
          - Name: BUILD_OUTPUT_BUCKET
            Value: !Ref BuildArtifactsBucket
      Cache:
        Type: S3
        Location: !Sub ${BuildArtifactsBucket}/codebuild-cache
      ServiceRole: !GetAtt ApplicationCodeBuildServiceRole.Arn
      Source:
        Type: CODEPIPELINE
        BuildSpec: ./javascript-appsync-sam-vtl/buildspec.yml
      Tags:
        - Key: "Stack"
          Value: !Ref AWS::StackName

  # Application integration test project for the CodeBuild
  IntegrationTestProject:
    Type: AWS::CodeBuild::Project
    Properties:
      Name: !Sub ${AWS::StackName}-IntegrationTest
      Description: !Sub Integration test project for the ${AWS::StackName}
      Artifacts:
        Type: CODEPIPELINE
      Environment:
        Type: LINUX_CONTAINER
        ComputeType: BUILD_GENERAL1_SMALL
        Image: aws/codebuild/amazonlinux2-x86_64-standard:4.0
        EnvironmentVariables:
          - Name: TEST_APPLICATION_STACK_NAME
            Value: !Sub ${AWS::StackName}-Testing
          - Name: TEST_COGNITO_STACK_NAME
            Value: !Sub ${AWS::StackName}-Cognito-Testing
      ServiceRole: !GetAtt IntegrationTestCodeBuildServiceRole.Arn
      Source:
        Type: CODEPIPELINE
        BuildSpec: ./javascript-appsync-sam-vtl/__tests__/testspec.yml
      Tags:
        - Key: "Stack"
          Value: !Ref AWS::StackName

  # Pipeline for building and deploying project
  Pipeline:
    Type: AWS::CodePipeline::Pipeline
    Properties:
      ArtifactStore:
        Location: !Ref BuildArtifactsBucket
        Type: S3
      Name: !Ref AWS::StackName
      RoleArn: !GetAtt CodePipelineExecutionRole.Arn
      Stages:
        - Name: Source
          Actions:
            - Name: SourceCodeRepo
              ActionTypeId:
                Category: Source
                Owner: AWS
                Provider: CodeCommit
                Version: "1"
              Configuration:
                RepositoryName: !GetAtt CodeRepository.Name
                BranchName: main
              OutputArtifacts:
                - Name: SourceCodeAsZip
              RunOrder: 1
        - Name: Build
          Actions:
            - Name: CodeBuild
              ActionTypeId:
                Category: Build
                Owner: AWS
                Provider: CodeBuild
                Version: "1"
              Configuration:
                ProjectName: !Ref CodeBuildProject
              InputArtifacts:
                - Name: SourceCodeAsZip
              OutputArtifacts:
                - Name: BuildArtifactAsZip
        - Name: Testing
          Actions:
            - Name: CreateCognitoChangeSet
              ActionTypeId:
                Category: Deploy
                Owner: AWS
                Provider: CloudFormation
                Version: "1"
              Configuration:
                ActionMode: CHANGE_SET_REPLACE
                RoleArn: !GetAtt CloudFormationExecutionRole.Arn
                StackName: !Sub ${AWS::StackName}-Cognito-Testing
                ChangeSetName: !Sub ${AWS::StackName}-ChangeSet-Cognito-Testing
                TemplatePath: BuildArtifactAsZip::cognito.yaml
                Capabilities: CAPABILITY_IAM
              InputArtifacts:
                - Name: BuildArtifactAsZip
              RunOrder: 1
            - Name: ExecuteCognitoChangeSet
              ActionTypeId:
                Category: Deploy
                Owner: AWS
                Provider: CloudFormation
                Version: "1"
              Configuration:
                ActionMode: CHANGE_SET_EXECUTE
                RoleArn: !GetAtt CloudFormationExecutionRole.Arn
                StackName: !Sub ${AWS::StackName}-Cognito-Testing
                ChangeSetName: !Sub ${AWS::StackName}-ChangeSet-Cognito-Testing
              OutputArtifacts:
                - Name: !Sub ${AWS::StackName}CognitoTestingChangeSet
              RunOrder: 2
            - Name: CreateApplicationChangeSet
              ActionTypeId:
                Category: Deploy
                Owner: AWS
                Provider: CloudFormation
                Version: "1"
              Configuration:
                ActionMode: CHANGE_SET_REPLACE
                RoleArn: !GetAtt CloudFormationExecutionRole.Arn
                StackName: !Sub ${AWS::StackName}-Testing
                ChangeSetName: !Sub ${AWS::StackName}-ChangeSet-Testing
                TemplatePath: BuildArtifactAsZip::application.yaml
                ParameterOverrides: !Sub '{"CognitoStackName": "${AWS::StackName}-Cognito-Testing"}'
                Capabilities: CAPABILITY_IAM
              InputArtifacts:
                - Name: BuildArtifactAsZip
              RunOrder: 1
            - Name: ExecuteApplicationChangeSet
              ActionTypeId:
                Category: Deploy
                Owner: AWS
                Provider: CloudFormation
                Version: "1"
              Configuration:
                ActionMode: CHANGE_SET_EXECUTE
                RoleArn: !GetAtt CloudFormationExecutionRole.Arn
                StackName: !Sub ${AWS::StackName}-Testing
                ChangeSetName: !Sub ${AWS::StackName}-ChangeSet-Testing
              OutputArtifacts:
                - Name: !Sub ${AWS::StackName}ApplicationTestingChangeSet
              RunOrder: 4
            - Name: IntegrationTest
              ActionTypeId:
                Category: Build
                Owner: AWS
                Provider: CodeBuild
                Version: "1"
              Configuration:
                ProjectName: !Ref IntegrationTestProject
              InputArtifacts:
                - Name: SourceCodeAsZip
              RunOrder: 5
        - Name: Deployment
          Actions:
            - Name: DeploymentApproval
              ActionTypeId:
                Category: Approval
                Owner: AWS
                Provider: Manual
                Version: "1"
              RunOrder: 1
            - Name: CreateCognitoChangeSet
              ActionTypeId:
                Category: Deploy
                Owner: AWS
                Provider: CloudFormation
                Version: "1"
              Configuration:
                ActionMode: CHANGE_SET_REPLACE
                RoleArn: !GetAtt CloudFormationExecutionRole.Arn
                StackName: !Sub ${AWS::StackName}-Cognito-Deployment
                ChangeSetName: !Sub ${AWS::StackName}-ChangeSet-Cognito-Deployment
                TemplatePath: BuildArtifactAsZip::cognito.yaml
                Capabilities: CAPABILITY_IAM
              InputArtifacts:
                - Name: BuildArtifactAsZip
              RunOrder: 2
            - Name: ExecuteCognitoChangeSet
              ActionTypeId:
                Category: Deploy
                Owner: AWS
                Provider: CloudFormation
                Version: "1"
              Configuration:
                ActionMode: CHANGE_SET_EXECUTE
                RoleArn: !GetAtt CloudFormationExecutionRole.Arn
                StackName: !Sub ${AWS::StackName}-Cognito-Deployment
                ChangeSetName: !Sub ${AWS::StackName}-ChangeSet-Cognito-Deployment
              OutputArtifacts:
                - Name: !Sub ${AWS::StackName}CognitoDeploymentChangeSet
              RunOrder: 3
            - Name: CreateApplicationChangeSet
              ActionTypeId:
                Category: Deploy
                Owner: AWS
                Provider: CloudFormation
                Version: "1"
              Configuration:
                ActionMode: CHANGE_SET_REPLACE
                RoleArn: !GetAtt CloudFormationExecutionRole.Arn
                StackName: !Sub ${AWS::StackName}-Deployment
                ChangeSetName: !Sub ${AWS::StackName}-ChangeSet-Deployment
                TemplatePath: BuildArtifactAsZip::application.yaml
                ParameterOverrides: !Sub '{"CognitoStackName": "${AWS::StackName}-Cognito-Deployment"}'
                Capabilities: CAPABILITY_IAM
              InputArtifacts:
                - Name: BuildArtifactAsZip
              RunOrder: 2
            - Name: ExecuteApplicationChangeSet
              ActionTypeId:
                Category: Deploy
                Owner: AWS
                Provider: CloudFormation
                Version: "1"
              Configuration:
                ActionMode: CHANGE_SET_EXECUTE
                RoleArn: !GetAtt CloudFormationExecutionRole.Arn
                StackName: !Sub ${AWS::StackName}-Deployment
                ChangeSetName: !Sub ${AWS::StackName}-ChangeSet-Deployment
              OutputArtifacts:
                - Name: !Sub ${AWS::StackName}DeploymentChangeSet
              RunOrder: 5

  # IAM roles/policies for the pipeline
  ApplicationCodeBuildServiceRole:
    Type: AWS::IAM::Role
    Properties:
      AssumeRolePolicyDocument:
        Version: "2012-10-17"
        Statement:
          - Action:
              - "sts:AssumeRole"
            Effect: Allow
            Principal:
              Service:
                - codebuild.amazonaws.com
      Path: /
      Policies:
        - PolicyName: CodeBuildLogs
          PolicyDocument:
            Version: "2012-10-17"
            Statement:
              - Effect: Allow
                Action:
                  - "logs:CreateLogGroup"
                  - "logs:CreateLogStream"
                  - "logs:PutLogEvents"
                Resource:
                  - !Sub "arn:aws:logs:${AWS::Region}:${AWS::AccountId}:log-group:/aws/codebuild/${AWS::StackName}*"
                  - !Sub "arn:aws:logs:${AWS::Region}:${AWS::AccountId}:log-group:/aws/codebuild/${AWS::StackName}*:*"
        - PolicyName: CodeBuildArtifactsBucket
          PolicyDocument:
            Version: "2012-10-17"
            Statement:
              - Effect: Allow
                Action:
                  - "s3:GetObject"
                  - "s3:GetObjectVersion"
                  - "s3:PutObject"
                Resource:
                  - !Sub "arn:aws:s3:::${BuildArtifactsBucket}/*"

  IntegrationTestCodeBuildServiceRole:
    Type: AWS::IAM::Role
    Properties:
      AssumeRolePolicyDocument:
        Version: "2012-10-17"
        Statement:
          - Action:
              - "sts:AssumeRole"
            Effect: Allow
            Principal:
              Service:
                - codebuild.amazonaws.com
      Path: /
      Policies:
        - PolicyName: CodeBuildLogs
          PolicyDocument:
            Version: "2012-10-17"
            Statement:
              - Effect: Allow
                Action:
                  - "logs:CreateLogGroup"
                  - "logs:CreateLogStream"
                  - "logs:PutLogEvents"
                Resource:
                  - !Sub "arn:aws:logs:${AWS::Region}:${AWS::AccountId}:log-group:/aws/codebuild/${AWS::StackName}*"
                  - !Sub "arn:aws:logs:${AWS::Region}:${AWS::AccountId}:log-group:/aws/codebuild/${AWS::StackName}*:*"
        - PolicyName: CodeBuildArtifactsBucket
          PolicyDocument:
            Version: "2012-10-17"
            Statement:
              - Effect: Allow
                Action:
                  - "s3:GetObject"
                  - "s3:GetObjectVersion"
                  - "s3:PutObject"
                Resource:
                  - !Sub "arn:aws:s3:::${BuildArtifactsBucket}/*"
        - PolicyName: CloudFormationAccess
          PolicyDocument:
            Version: "2012-10-17"
            Statement:
              - Effect: Allow
                Action: "cloudformation:DescribeStacks"
                Resource:
                  - !Sub "arn:aws:cloudformation:${AWS::Region}:${AWS::AccountId}:stack/${AWS::StackName}-Testing/*"
                  - !Sub "arn:aws:cloudformation:${AWS::Region}:${AWS::AccountId}:stack/${AWS::StackName}-Cognito-Testing/*"
        - PolicyName: ParameterStoreAccess
          PolicyDocument:
            Version: "2012-10-17"
            Statement:
              - Effect: Allow
                Action: "secretsmanager:GetRandomPassword"
                Resource: "*"
        - PolicyName: CognitoAccess
          PolicyDocument:
            Version: "2012-10-17"
            Statement:
              - Effect: Allow
                Action:
                  - "cognito-idp:AdminDeleteUser"
                  - "cognito-idp:AdminConfirmSignUp"
                  - "cognito-idp:AdminAddUserToGroup"
                Resource:
                  - !Sub "arn:aws:cognito-idp:${AWS::Region}:${AWS::AccountId}:userpool/*"
        - PolicyName: AppSyncAccess
          PolicyDocument:
            Version: "2012-10-17"
            Statement:
              - Effect: Allow
                Action:
                  - "appsync:EvaluateMappingTemplate"
                Resource:
                  - !Sub "arn:aws:appsync:${AWS::Region}:${AWS::AccountId}:*"
        - PolicyName: DynamoDBAccess
          PolicyDocument:
            Version: "2012-10-17"
            Statement:
              - Effect: Allow
                Action:
                  - "dynamodb:BatchGet*"
                  - "dynamodb:DescribeStream"
                  - "dynamodb:DescribeTable"
                  - "dynamodb:Get*"
                  - "dynamodb:Query"
                  - "dynamodb:Scan"
                  - "dynamodb:BatchWrite*"
                  - "dynamodb:CreateTable"
                  - "dynamodb:Delete*"
                  - "dynamodb:Update*"
                  - "dynamodb:PutItem"
                Resource:
                  - !Sub "arn:aws:dynamodb:${AWS::Region}:${AWS::AccountId}:table/${AWS::StackName}*"

  CloudFormationExecutionRole:
    Type: AWS::IAM::Role
    Properties:
      AssumeRolePolicyDocument:
        Version: "2012-10-17"
        Statement:
          Action: "sts:AssumeRole"
          Effect: Allow
          Principal:
            Service: cloudformation.amazonaws.com
      Path: /
      ManagedPolicyArns:
        - "arn:aws:iam::aws:policy/PowerUserAccess"
      Policies:
        - PolicyName: IAMAccess
          PolicyDocument:
            Version: "2012-10-17"
            Statement:
              - Effect: Allow
                Action:
                  - "iam:PassRole"
                  - "iam:GetRole"
                  - "iam:CreateRole"
                  - "iam:DeleteRole"
                  - "iam:GetRolePolicy"
                  - "iam:PutRolePolicy"
                  - "iam:AttachRolePolicy"
                  - "iam:DetachRolePolicy"
                  - "iam:DeleteRolePolicy"
                  - "iam:ListRoleTags"
                  - "iam:TagRole"
                  - "iam:UntagRole"
                # You may need to relaxe scope of following resource if you use stack name that
                # is longer than 25 characters by changing to arn:aws:iam::${AWS::AccountId}:role/*
                Resource: !Sub "arn:aws:iam::${AWS::AccountId}:role/${AWS::StackName}*"

  CodePipelineExecutionRole:
    Type: AWS::IAM::Role
    Properties:
      AssumeRolePolicyDocument:
        Version: "2012-10-17"
        Statement:
          - Action:
              - "sts:AssumeRole"
            Effect: Allow
            Principal:
              Service:
                - codepipeline.amazonaws.com
      Path: /
      ManagedPolicyArns:
        - arn:aws:iam::aws:policy/AWSCodePipeline_FullAccess
        - arn:aws:iam::aws:policy/AWSCodeCommitReadOnly
      Policies:
        - PolicyName: CodePipelineAccess
          PolicyDocument:
            Version: "2012-10-17"
            Statement:
              - Effect: Allow
                Action:
                  - "iam:PassRole"
                # You may need to relaxe scope of following resource if you use stack name that
                # is longer than 25 characters by changing to arn:aws:iam::${AWS::AccountId}:role/*
                Resource: !Sub "arn:aws:iam::${AWS::AccountId}:role/${AWS::StackName}*"
        - PolicyName: CodePipelineCodeAndArtifactsS3Bucket
          PolicyDocument:
            Version: "2012-10-17"
            Statement:
              - Effect: Allow
                Action:
                  - "s3:ListBucket"
                  - "s3:*Object*"
                Resource: !Sub "arn:aws:s3:::${BuildArtifactsBucket}/*"
              - Effect: Allow
                Action:
                  - "codecommit:GitPull"
                  - "codecommit:Get*"
                  - "codecommit:List*"
                  - "codecommit:BatchGet*"
                  - "codecommit:BatchDescribe*"
                  - "codecommit:Describe*"
                  - "codecommit:EvaluatePullRequestApprovalRules"
                  - "codecommit:UploadArchive"
                Resource: !Sub "arn:aws:codecommit:${AWS::Region}:${AWS::AccountId}:${CodeRepository.Name}"
        - PolicyName: CodePipelineCodeBuildAndCloudformationAccess
          PolicyDocument:
            Version: "2012-10-17"
            Statement:
              - Effect: Allow
                Action:
                  - "codebuild:StartBuild"
                  - "codebuild:BatchGetBuilds"
                Resource:
                  - !Sub "arn:aws:codebuild:${AWS::Region}:${AWS::AccountId}:project/${CodeBuildProject}"
                  - !Sub "arn:aws:codebuild:${AWS::Region}:${AWS::AccountId}:project/${IntegrationTestProject}"
              - Effect: Allow
                Action:
                  - "cloudformation:CreateStack"
                  - "cloudformation:DescribeStacks"
                  - "cloudformation:DeleteStack"
                  - "cloudformation:UpdateStack"
                  - "cloudformation:CreateChangeSet"
                  - "cloudformation:ExecuteChangeSet"
                  - "cloudformation:DeleteChangeSet"
                  - "cloudformation:DescribeChangeSet"
                  - "cloudformation:SetStackPolicy"
                  - "cloudformation:SetStackPolicy"
                  - "cloudformation:ValidateTemplate"
                Resource:
                  - !Sub "arn:aws:cloudformation:${AWS::Region}:${AWS::AccountId}:stack/${AWS::StackName}*/*"
                  - !Sub "arn:aws:cloudformation:${AWS::Region}:aws:transform/Serverless-2016-10-31"

Outputs:
  CodeCommitRepositoryHttpUrl:
    Description: AWS CodeCommit Git repository
    Value: !GetAtt CodeRepository.CloneUrlHttp

  CodeCommitRepositorySshUrl:
    Description: AWS CodeCommit Git repository
    Value: !GetAtt CodeRepository.CloneUrlSsh

  BuildArtifactS3Bucket:
    Description: Amazon S3 Bucket for Pipeline and Build artifacts
    Value: !Ref BuildArtifactsBucket

  CodeBuildProject:
    Description: CodeBuild Project name
    Value: !Ref CodeBuildProject

  IntegrationTestProject:
    Description: Integration Test Project name
    Value: !Ref IntegrationTestProject

  CodePipeline:
    Description: AWS CodePipeline pipeline name
    Value: !Ref Pipeline

  CodeBuildIAMRole:
    Description: CodeBuild IAM Role
    Value: !GetAtt ApplicationCodeBuildServiceRole.Arn

  CloudformationIAMRole:
    Description: Cloudformation IAM Role
    Value: !GetAtt CloudFormationExecutionRole.Arn

  CodePipelineIAMRole:
    Description: CodePipeline IAM Role
    Value: !GetAtt CodePipelineExecutionRole.Arn