AWSTemplateFormatVersion: 2010-09-09
Description: >-
  Setup CICD pipeline to build and publish content of Hugo based website from
  AWS CodeCommit repo to s3 bucket.
Resources:
  ArtifactBucket:
    Type: 'AWS::S3::Bucket'
    Properties:
      AccessControl: Private
      LifecycleConfiguration:
        Rules:
          - NoncurrentVersionExpirationInDays: 30
            Status: Enabled
      VersioningConfiguration:
        Status: Enabled
  CodeCommitRepo:
    Type: AWS::CodeCommit::Repository
    Properties:
      RepositoryDescription: Repository to host content of the Hugo website
      RepositoryName: !Ref RepoName
  WebHostingBucket:
    Type: 'AWS::S3::Bucket'
    Properties:
      AccessControl: PublicRead
      BucketName: !Ref HostingBucketName
      WebsiteConfiguration:
        IndexDocument: index.html
  WebHostingBucketPolicy:
    Type: AWS::S3::BucketPolicy
    Properties: 
      Bucket: !Ref WebHostingBucket
      PolicyDocument:
        Statement:
          - 
            Action:
              - "s3:GetObject"
            Effect: "Allow"
            Resource:
              Fn::Join:
                - ""
                -
                  - "arn:aws:s3:::"
                  - !Ref WebHostingBucket
                  - "/*"
            Principal: "*"
  IAMRoleStack:
    Type: 'AWS::CloudFormation::Stack'
    DependsOn:
      - ArtifactBucket
    Properties:
      TemplateURL: !Sub >-
        https://${S3BucketName}.s3.amazonaws.com/${S3KeyPrefix}templates/iam.template.yaml
      Parameters:
        WebsiteBucket: !Ref WebHostingBucket
        ArtifactBucket: !Ref ArtifactBucket
  CodePipelineStack:
    Type: 'AWS::CloudFormation::Stack'
    DependsOn:
      - WebHostingBucket
    Properties:
      TemplateURL: !Sub >-
        https://${S3BucketName}.s3.amazonaws.com/${S3KeyPrefix}templates/pipeline.template.yaml
      Parameters:
        ArtifactBucket: !Ref ArtifactBucket
        CodePipelineRoleArn: !GetAtt 
          - IAMRoleStack
          - Outputs.CodePipelineRoleArn
        CodeBuildRoleArn: !GetAtt 
          - IAMRoleStack
          - Outputs.CodeBuildRoleArn
        CloudfrontDistId: '!Ref CloudfrontDistId'
        CloudfrontRole: '!Ref CloudfrontRoleArn'
        WebsiteBucket: !Ref WebHostingBucket
        RepoName: !Ref RepoName
        RepoBranch: 'master'
  
Parameters:
  RepoName:
    Description: Enter the repository name to host hugo website content
    Type: String
    MinLength: 1
  HostingBucketName:
    Description: Name of the S3 bucket to hold the website content (must be globally unique)
    Type: String
    MinLength: 3
  S3BucketName:
    AllowedPattern: '^[0-9a-zA-Z]+([0-9a-zA-Z-]*[0-9a-zA-Z])*$'
    ConstraintDescription: >-
      Bucket name can include numbers, lowercase letters, uppercase
      letters, and hyphens (-). It cannot start or end with a hyphen (-).
    Default: aws-quickstart
    Description: >-
      S3 bucket name for the Quick Start assets. Quick Start bucket name can
      include numbers, lowercase letters, uppercase letters, and hyphens (-). It
      cannot start or end with a hyphen (-).
    Type: String
  S3KeyPrefix:
    AllowedPattern: '^[0-9a-zA-Z-/]*$'
    ConstraintDescription: >-
      Quick Start key prefix can include numbers, lowercase letters, uppercase
      letters, hyphens (-), and forward slash (/).
    Default: quickstart-examples/samples/hugo-pipeline/
    Description: >-
      S3 key prefix for the Quick Start assets. Quick Start key prefix can
      include numbers, lowercase letters, uppercase letters, hyphens (-), and
      forward slash (/).
    Type: String

Outputs:
  CodeCommitRepository:
    Description: AWS CodeCommit repository
    Value: !Ref CodeCommitRepo
  WebsiteURL:
    Value: !GetAtt [WebHostingBucket, WebsiteURL]
    Description: URL for website hosted on S3
  S3BucketSecureURL:
    Value: !Join ['', ['https://', !GetAtt [WebHostingBucket, DomainName]]]
    Description: Name of S3 bucket to hold website content
  CodePipelineURL:
    Description: The URL of the created Pipeline
    Value: !Sub 
      - >-
        https://${AWS::Region}.console.aws.amazon.com/codepipeline/home?region=${AWS::Region}#/view/${CodePipelineName}
      - CodePipelineName: !GetAtt 
          - CodePipelineStack
          - Outputs.CodePipelineName