sample-kro-serverless-app-stack/shared-resources/s3/shared-ui-bucket.yaml at main · aws-samples/sample-kro-serverless-app-stack · GitHub

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# Shared UI Bucket
# Hosts all application UIs with prefix-based isolation
# CloudFront accesses this bucket via OAC
#
# Structure:
#   s3://hkc-sample-shared-ui/
#   ├── john-inventory-dev/        # Developer instance
#   │   ├── index.html
#   │   ├── app.js
#   │   └── styles.css
#   ├── team-inventory-staging/    # Staging instance
#   │   └── ...
#   └── team-inventory-prod/       # Production instance
#       └── ...
#
apiVersion: s3.services.k8s.aws/v1alpha1
kind: Bucket
metadata:
  name: hkc-sample-shared-ui
  namespace: kro-serverless-stack
  labels:
    app.kubernetes.io/name: hkc-sample
    app.kubernetes.io/component: s3
    app.kubernetes.io/part-of: shared-platform
spec:
  name: hkc-sample-shared-ui-${AWS_ACCOUNT_ID}

  # Versioning for rollback capability
  versioning:
    status: Enabled

  # Server-side encryption
  encryption:
    rules:
      - applyServerSideEncryptionByDefault:
          sseAlgorithm: AES256

  # Block public access (CloudFront uses OAC)
  # Note: blockPublicPolicy must be false to allow the CloudFront OAC bucket policy
  publicAccessBlock:
    blockPublicACLs: true
    blockPublicPolicy: false
    ignorePublicACLs: true
    restrictPublicBuckets: false

  # Bucket policy for CloudFront OAC access
  # Uses SourceAccount condition to restrict to your AWS account only
  policy: |
    {
      "Version": "2012-10-17",
      "Statement": [
        {
          "Sid": "AllowCloudFrontOAC",
          "Effect": "Allow",
          "Principal": {
            "Service": "cloudfront.amazonaws.com"
          },
          "Action": "s3:GetObject",
          "Resource": "arn:aws:s3:::hkc-sample-shared-ui-${AWS_ACCOUNT_ID}/*",
          "Condition": {
            "StringEquals": {
              "AWS:SourceAccount": "${AWS_ACCOUNT_ID}"
            }
          }
        }
      ]
    }

  # CORS configuration for API calls from UI
  cors:
    corsRules:
      - allowedHeaders:
          - "*"
        allowedMethods:
          - GET
          - HEAD
        allowedOrigins:
          - "https://*.${DOMAIN_NAME}"
        maxAgeSeconds: 3000

  # Tags
  tagging:
    tagSet:
      - key: Application
        value: hkc-sample
      - key: Component
        value: shared-ui
      - key: ManagedBy
        value: ACK