S3

S3 Bucket

• bucket-SYSTEM-ENV-tmp.yml
• 動作確認済み@2026/01/10

AWSTemplateFormatVersion: '2010-09-09'

Parameters:
  SYSTEM:
    Type: String
    AllowedPattern: "^[a-z]{3}$"
    Default: "com"
  ENV:
    Type: String
    AllowedValues: 
      - prd
      - stg
      - dev
    Default: "prd"
  BucketName:
    Type: String
    Default: "bucket-{{.cfn_account2_system}}-{{.cfn_account3_env}}-tmp"

Resources:
  S3Bucket:
    Type: AWS::S3::Bucket
    Properties:
      BucketName: !Sub ${BucketName}
      PublicAccessBlockConfiguration:
          BlockPublicAcls: false
          BlockPublicPolicy: false
          IgnorePublicAcls: false
          RestrictPublicBuckets: false
      WebsiteConfiguration: 
        IndexDocument: index.html
        ErrorDocument: error.html
      Tags:
        - Key: STACK_NAME
          Value: !Ref AWS::StackName
        - Key: SYSTEM
          Value: !Sub ${SYSTEM}
        - Key: ENV
          Value: !Sub ${ENV}
      
  S3BucketPolicy:
    DependsOn: S3Bucket
    Type: "AWS::S3::BucketPolicy"
    Properties:
      PolicyDocument:
        Statement:
          - Action:
            - "s3:GetObject"
            Effect: "Allow"
            Resource: !Sub "arn:aws:s3:::${BucketName}/*"
            Principal: "*"
      Bucket: !Ref S3Bucket