AWSTemplateFormatVersion: "2010-09-09"
Description: S3 -> CodePipeline -> CodeBuild(ARM) -> ECR pipeline for Forgejo

Parameters:
  SourceBucketName:
    Type: String
    Default: forgejo-source-bucket

  SourceObjectKey:
    Type: String
    Default: forgejo-source.zip

  ForgejoRepositoryName:
    Type: String
    Default: forgejo-repository

Resources:

  # S3 Bucket (Source)
  SourceBucket:
    Type: AWS::S3::Bucket
    Properties:
      BucketName: !Sub "ap-northeast-1-${AWS::AccountId}-${SourceBucketName}"
      Tags:
        - Key: Project
          Value: Git-server
      VersioningConfiguration:
        Status: Enabled

  # ECR Repository
  ForgejoRepository:
    Type: AWS::ECR::Repository
    Properties:
      RepositoryName: !Ref ForgejoRepositoryName
      ImageScanningConfiguration:
        ScanOnPush: true

  # IAM Role for CodeBuild
  CodeBuildRole:
    Type: AWS::IAM::Role
    Properties:
      AssumeRolePolicyDocument:
        Version: "2012-10-17"
        Statement:
          - Effect: Allow
            Principal:
              Service: codebuild.amazonaws.com
            Action: sts:AssumeRole
      Policies:
        - PolicyName: CodeBuildPolicy
          PolicyDocument:
            Version: "2012-10-17"
            Statement:
              - Effect: Allow
                Action:
                  - logs:CreateLogGroup
                  - logs:CreateLogStream
                  - logs:PutLogEvents
                Resource: "*"
              - Effect: Allow
                Action:
                  - ecr:GetAuthorizationToken
                Resource: "*"
              - Effect: Allow
                Action:
                  - ecr:BatchCheckLayerAvailability
                  - ecr:InitiateLayerUpload
                  - ecr:UploadLayerPart
                  - ecr:CompleteLayerUpload
                  - ecr:PutImage
                Resource:
                  - !Sub "arn:aws:ecr:ap-northeast-1:${AWS::AccountId}:repository/forgejo-repository"
              - Effect: Allow
                Action:
                  - s3:GetObject
                  - s3:PutObject
                  - s3:ListBucket
                Resource:
                  - !Sub "arn:aws:s3:::codebuild-ap-northeast-1-${AWS::AccountId}-input-bucket"
                  - !Sub "arn:aws:s3:::codebuild-ap-northeast-1-${AWS::AccountId}-input-bucket/*"
                  - !Sub "arn:aws:s3:::ap-northeast-1-${AWS::AccountId}-${SourceBucketName}"
                  - !Sub "arn:aws:s3:::ap-northeast-1-${AWS::AccountId}-${SourceBucketName}/*"


  # CodeBuild Project (ARM)
  ForgejoBuildProject:
    Type: AWS::CodeBuild::Project
    Properties:
      ServiceRole: !GetAtt CodeBuildRole.Arn
      Artifacts:
        Type: CODEPIPELINE
      Environment:
        Type: ARM_CONTAINER
        ComputeType: BUILD_GENERAL1_MEDIUM
        Image: aws/codebuild/amazonlinux2-aarch64-standard:3.0
        PrivilegedMode: true
        EnvironmentVariables:
          - Name: ECR_REPOSITORY
            Value: !Ref ForgejoRepositoryName
      Source:
        Type: CODEPIPELINE
      TimeoutInMinutes: 30

  # IAM Role for CodePipeline
  CodePipelineRole:
    Type: AWS::IAM::Role
    Properties:
      AssumeRolePolicyDocument:
        Version: "2012-10-17"
        Statement:
          - Effect: Allow
            Principal:
              Service: codepipeline.amazonaws.com
            Action: sts:AssumeRole
      Policies:
        - PolicyName: CodePipelinePolicy
          PolicyDocument:
            Version: '2012-10-17'
            Statement:
              # Permissions for accessing the artifacts bucket
              - Effect: Allow
                Action:
                  - s3:GetObject
                  - s3:GetObjectVersion
                  - s3:PutObject
                  - s3:ListBucket
                  - s3:GetBucketLocation
                  - s3:GetBucketVersioning
                Resource:
                  - !Sub "arn:aws:s3:::codebuild-ap-northeast-1-${AWS::AccountId}-input-bucket"
                  - !Sub "arn:aws:s3:::codebuild-ap-northeast-1-${AWS::AccountId}-input-bucket/*"
                  - !Sub "arn:aws:s3:::ap-northeast-1-${AWS::AccountId}-${SourceBucketName}"
                  - !Sub "arn:aws:s3:::ap-northeast-1-${AWS::AccountId}-${SourceBucketName}/*"
              # Permissions for CodeBuild (if used)
              - Effect: Allow
                Action:
                  - codebuild:StartBuild
                  - codebuild:BatchGetBuilds
                Resource: "*"
              # Permissions for manual approval actions in CodePipeline
              - Effect: Allow
                Action:
                  - codepipeline:PutApprovalResult
                Resource: "*"

  # CodePipeline
  ForgejoPipeline:
    Type: AWS::CodePipeline::Pipeline
    Properties:
      PipelineType: V2
      RoleArn: !GetAtt CodePipelineRole.Arn
      ArtifactStore:
        Type: S3
        Location: !Sub "codebuild-ap-northeast-1-${AWS::AccountId}-input-bucket"
      Stages:
        - Name: Source
          Actions:
            - Name: S3Source
              ActionTypeId:
                Category: Source
                Owner: AWS
                Provider: S3
                Version: "1"
              Configuration:
                S3Bucket: !Ref SourceBucket
                S3ObjectKey: !Ref SourceObjectKey
                PollForSourceChanges: true
              OutputArtifacts:
                - Name: SourceOutput
        - Name: Build
          Actions:
            - Name: BuildImage
              ActionTypeId:
                Category: Build
                Owner: AWS
                Provider: CodeBuild
                Version: "1"
              InputArtifacts:
                - Name: SourceOutput
              Configuration:
                ProjectName: !Ref ForgejoBuildProject