Merge remote-tracking branch 'origin/main' into feature/integrity-verification-design

Add integrity verification workflow design document
Define SHA256 checksum verification process for artifact downloads: - Five verification modes: none, header, stream, pre, strict - Failure detection for hash/size mismatch, S3 errors, truncation - Retry mechanism with exponential backoff - Quarantine process for strict mode failures - Configuration options and client integration examples
2025-12-15 12:43:05 -06:00 · 2025-12-15 12:30:18 -06:00
16 changed files with 91 additions and 704 deletions
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,29 +6,12 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

 ## [Unreleased]
-### Added
- Added presigned URL support for direct S3 downloads (#48)
- Added `ORCHARD_DOWNLOAD_MODE` config option (`presigned`, `redirect`, `proxy`) (#48)
- Added `ORCHARD_PRESIGNED_URL_EXPIRY` config option (default: 3600 seconds) (#48)
- Added `?mode=` query parameter to override download mode per-request (#48)
- Added `/api/v1/project/{project}/{package}/+/{ref}/url` endpoint for getting presigned URLs (#48)
- Added `PresignedUrlResponse` schema with URL, expiry, checksums, and artifact metadata (#48)
- Added MinIO ingress support in Helm chart for presigned URL access (#48)
- Added `orchard.download.mode` and `orchard.download.presignedUrlExpiry` Helm values (#48)
- Added integrity verification workflow design document (#24)
- Added `sha256` field to API responses for clarity (alias of `id`) (#25)
- Added `checksum_sha1` field to artifacts table for compatibility (#25)
- Added `s3_etag` field to artifacts table for S3 verification (#25)
- Compute and store MD5, SHA1, and S3 ETag alongside SHA256 during upload (#25)
- Added `Dockerfile.local` and `docker-compose.local.yml` for local development (#25)
- Added migration script `003_checksum_fields.sql` for existing databases (#25)
-### Changed
- Changed default download mode from `proxy` to `presigned` for better performance (#48)
-### Fixed
- Fixed Helm chart `minio.ingress` conflicting with Bitnami MinIO subchart by renaming to `minioIngress` (#48)

 ## [0.2.0] - 2025-12-15
+### Changed
+- Updated images to use internal container BSF proxy (#46)
 ### Added
+- Added integrity verification workflow design document (#24)
 - Added `format` and `platform` fields to packages table (#16)
 - Added `checksum_md5` and `metadata` JSONB fields to artifacts table (#16)
 - Added `updated_at` field to tags table (#16)
@@ -41,11 +24,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Added database triggers for maintaining artifact `ref_count` accuracy (#16)
 - Added CHECK constraints for data integrity (`size > 0`, `ref_count >= 0`) (#16)
 - Added migration script `002_schema_enhancements.sql` for existing databases (#16)
-### Changed
- Updated images to use internal container BSF proxy (#46)

 ## [0.1.0] - 2025-12-12
-### Added
- Added Prosper docker template config (#45)
 ### Changed
 - Changed the Dockerfile npm build arg to use the deps.global.bsf.tools URL as the default registry (#45)
+### Added
+- Added Prosper docker template config (#45)
--- a/Dockerfile.local
+++ b/Dockerfile.local
@@ -1,50 +0,0 @@
-# Frontend build stage
-FROM node:20-alpine AS frontend-builder
-
-WORKDIR /app/frontend
-
-# Copy package files
-COPY frontend/package*.json ./
-RUN npm install
-
-# Copy frontend source
-COPY frontend/ ./
-
-# Build frontend
-RUN npm run build
-
-# Runtime stage
-FROM python:3.12-slim
-
-# Install system dependencies
-RUN apt-get update && apt-get install -y --no-install-recommends \
-    curl \
-    && rm -rf /var/lib/apt/lists/*
-
-# Create non-root user
-RUN groupadd -g 1000 orchard && \
-    useradd -u 1000 -g orchard -s /bin/bash -m orchard
-
-WORKDIR /app
-
-# Copy requirements and install Python dependencies
-COPY backend/requirements.txt .
-RUN pip install --no-cache-dir -r requirements.txt
-
-# Copy backend source
-COPY backend/ ./backend/
-
-# Copy frontend build
-COPY --from=frontend-builder /app/frontend/dist ./frontend/dist
-
-# Set ownership
-RUN chown -R orchard:orchard /app
-
-USER orchard
-
-EXPOSE 8080
-
-HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
-    CMD curl -f http://localhost:8080/health || exit 1
-
-CMD ["uvicorn", "backend.app.main:app", "--host", "0.0.0.0", "--port", "8080"]
--- a/README.md
+++ b/README.md
@@ -60,8 +60,7 @@ Orchard is a centralized binary artifact storage system that provides content-ad
 | `GET` | `/api/v1/project/:project/packages/:package` | Get single package with metadata |
 | `POST` | `/api/v1/project/:project/packages` | Create a new package |
 | `POST` | `/api/v1/project/:project/:package/upload` | Upload an artifact |
-| `GET` | `/api/v1/project/:project/:package/+/:ref` | Download an artifact (supports Range header, mode param) |
-| `GET` | `/api/v1/project/:project/:package/+/:ref/url` | Get presigned URL for direct S3 download |
+| `GET` | `/api/v1/project/:project/:package/+/:ref` | Download an artifact (supports Range header) |
 | `HEAD` | `/api/v1/project/:project/:package/+/:ref` | Get artifact metadata without downloading |
 | `GET` | `/api/v1/project/:project/:package/tags` | List tags (with pagination, search, sorting, artifact metadata) |
 | `POST` | `/api/v1/project/:project/:package/tags` | Create a tag |
@@ -293,12 +292,6 @@ curl -H "Range: bytes=0-1023" http://localhost:8080/api/v1/project/my-project/re

 # Check file info without downloading (HEAD request)
 curl -I http://localhost:8080/api/v1/project/my-project/releases/+/v1.0.0
-
-# Download with specific mode (presigned, redirect, or proxy)
-curl "http://localhost:8080/api/v1/project/my-project/releases/+/v1.0.0?mode=proxy"
-
-# Get presigned URL for direct S3 download
-curl http://localhost:8080/api/v1/project/my-project/releases/+/v1.0.0/url
 ```

 > **Note on curl flags:**
@@ -307,33 +300,6 @@ curl http://localhost:8080/api/v1/project/my-project/releases/+/v1.0.0/url
 > - `-OJ` combines both: download to a file using the server-provided filename
 > - `-o <filename>` saves to a specific filename you choose

-#### Download Modes
-
-Orchard supports three download modes, configurable via `ORCHARD_DOWNLOAD_MODE` or per-request with `?mode=`:
-
-| Mode | Description | Use Case |
-|------|-------------|----------|
-| `presigned` (default) | Returns JSON with a presigned S3 URL | Clients that handle redirects themselves, web UIs |
-| `redirect` | Returns HTTP 302 redirect to presigned S3 URL | Simple clients, browsers, wget |
-| `proxy` | Streams content through the backend | When S3 isn't directly accessible to clients |
-
-**Presigned URL Response:**
-```json
-{
-  "url": "https://minio.example.com/bucket/...",
-  "expires_at": "2025-01-01T01:00:00Z",
-  "method": "GET",
-  "artifact_id": "a3f5d8e...",
-  "size": 1048576,
-  "content_type": "application/gzip",
-  "original_name": "app-v1.0.0.tar.gz",
-  "checksum_sha256": "a3f5d8e...",
-  "checksum_md5": "d41d8cd..."
-}
-```
-
-> **Note:** For presigned URLs to work, clients must be able to reach the S3 endpoint directly. In Kubernetes, this requires exposing MinIO via ingress (see Helm configuration below).
-
 ### Create a Tag

 ```bash
@@ -519,8 +485,6 @@ Configuration is provided via environment variables prefixed with `ORCHARD_`:
 | `ORCHARD_S3_BUCKET` | S3 bucket name | `orchard-artifacts` |
 | `ORCHARD_S3_ACCESS_KEY_ID` | S3 access key | - |
 | `ORCHARD_S3_SECRET_ACCESS_KEY` | S3 secret key | - |
-| `ORCHARD_DOWNLOAD_MODE` | Download mode: `presigned`, `redirect`, or `proxy` | `presigned` |
-| `ORCHARD_PRESIGNED_URL_EXPIRY` | Presigned URL expiry in seconds | `3600` |

 ## Kubernetes Deployment

@@ -541,31 +505,6 @@ helm install orchard ./helm/orchard -n orchard --create-namespace
 helm install orchard ./helm/orchard -f my-values.yaml
 ```

-### Helm Configuration
-
-Key configuration options in `values.yaml`:
-
-```yaml
-orchard:
-  # Download configuration
-  download:
-    mode: "presigned"       # presigned, redirect, or proxy
-    presignedUrlExpiry: 3600
-
-# MinIO ingress (required for presigned URL downloads)
-minioIngress:
-  enabled: true
-  className: "nginx"
-  annotations:
-    cert-manager.io/cluster-issuer: "letsencrypt"
-  host: "minio.your-domain.com"
-  tls:
-    enabled: true
-    secretName: minio-tls
-```
-
-When `minioIngress.enabled` is `true`, the S3 endpoint automatically uses the external URL (`https://minio.your-domain.com`), making presigned URLs accessible to external clients.
-
 See `helm/orchard/values.yaml` for all configuration options.

 ## Database Schema
--- a/backend/app/config.py
+++ b/backend/app/config.py
@@ -32,10 +32,6 @@ class Settings(BaseSettings):
    s3_secret_access_key: str = ""
    s3_use_path_style: bool = True

-    # Download settings
-    download_mode: str = "presigned"  # "presigned", "redirect", or "proxy"
-    presigned_url_expiry: int = 3600  # Presigned URL expiry in seconds (default: 1 hour)
-
    @property
    def database_url(self) -> str:
        sslmode = f"?sslmode={self.database_sslmode}" if self.database_sslmode else ""
--- a/backend/app/models.py
+++ b/backend/app/models.py
@@ -74,9 +74,7 @@ class Artifact(Base):
    content_type = Column(String(255))
    original_name = Column(String(1024))
    checksum_md5 = Column(String(32))  # MD5 hash for additional verification
-    checksum_sha1 = Column(String(40))  # SHA1 hash for compatibility
-    s3_etag = Column(String(64))  # S3 ETag for verification
-    artifact_metadata = Column("metadata", JSON, default=dict)  # Format-specific metadata (column name is 'metadata')
+    metadata = Column(JSON, default=dict)  # Format-specific metadata
    created_at = Column(DateTime(timezone=True), default=datetime.utcnow)
    created_by = Column(String(255), nullable=False)
    ref_count = Column(Integer, default=1)
@@ -85,21 +83,6 @@ class Artifact(Base):
    tags = relationship("Tag", back_populates="artifact")
    uploads = relationship("Upload", back_populates="artifact")

-    @property
-    def sha256(self) -> str:
-        """Alias for id - the SHA256 hash of the artifact content"""
-        return self.id
-
-    @property
-    def format_metadata(self):
-        """Alias for artifact_metadata - backward compatibility"""
-        return self.artifact_metadata
-
-    @format_metadata.setter
-    def format_metadata(self, value):
-        """Alias setter for artifact_metadata - backward compatibility"""
-        self.artifact_metadata = value
-
    __table_args__ = (
        Index("idx_artifacts_created_at", "created_at"),
        Index("idx_artifacts_created_by", "created_by"),
--- a/backend/app/routes.py
+++ b/backend/app/routes.py
@@ -1,9 +1,9 @@
-from datetime import datetime, timedelta, timezone
+from datetime import datetime
 from fastapi import APIRouter, Depends, HTTPException, UploadFile, File, Form, Request, Query, Header, Response
-from fastapi.responses import StreamingResponse, RedirectResponse
+from fastapi.responses import StreamingResponse
 from sqlalchemy.orm import Session
 from sqlalchemy import or_, func
-from typing import List, Optional, Literal
+from typing import List, Optional
 import math
 import re
 import io
@@ -29,10 +29,8 @@ from .schemas import (
    ResumableUploadCompleteResponse,
    ResumableUploadStatusResponse,
    GlobalSearchResponse, SearchResultProject, SearchResultPackage, SearchResultArtifact,
-    PresignedUrlResponse,
 )
 from .metadata import extract_metadata
-from .config import get_settings

 router = APIRouter()

@@ -522,51 +520,40 @@ def upload_artifact(
        )

    # Store file (uses multipart for large files)
-    storage_result = storage.store(file.file, content_length)
+    sha256_hash, size, s3_key = storage.store(file.file, content_length)

    # Check if this is a deduplicated upload
    deduplicated = False

    # Create or update artifact record
-    artifact = db.query(Artifact).filter(Artifact.id == storage_result.sha256).first()
+    artifact = db.query(Artifact).filter(Artifact.id == sha256_hash).first()
    if artifact:
        artifact.ref_count += 1
        deduplicated = True
        # Merge metadata if new metadata was extracted
-        if file_metadata and artifact.artifact_metadata:
-            artifact.artifact_metadata = {**artifact.artifact_metadata, **file_metadata}
+        if file_metadata and artifact.format_metadata:
+            artifact.format_metadata = {**artifact.format_metadata, **file_metadata}
        elif file_metadata:
-            artifact.artifact_metadata = file_metadata
-        # Update checksums if not already set
-        if not artifact.checksum_md5 and storage_result.md5:
-            artifact.checksum_md5 = storage_result.md5
-        if not artifact.checksum_sha1 and storage_result.sha1:
-            artifact.checksum_sha1 = storage_result.sha1
-        if not artifact.s3_etag and storage_result.s3_etag:
-            artifact.s3_etag = storage_result.s3_etag
+            artifact.format_metadata = file_metadata
    else:
        artifact = Artifact(
-            id=storage_result.sha256,
-            size=storage_result.size,
+            id=sha256_hash,
+            size=size,
            content_type=file.content_type,
            original_name=file.filename,
-            checksum_md5=storage_result.md5,
-            checksum_sha1=storage_result.sha1,
-            s3_etag=storage_result.s3_etag,
            created_by=user_id,
-            s3_key=storage_result.s3_key,
-            artifact_metadata=file_metadata or {},
+            s3_key=s3_key,
+            format_metadata=file_metadata or {},
        )
        db.add(artifact)

    # Record upload
    upload = Upload(
-        artifact_id=storage_result.sha256,
+        artifact_id=sha256_hash,
        package_id=package.id,
        original_name=file.filename,
        uploaded_by=user_id,
        source_ip=request.client.host if request.client else None,
-        deduplicated=deduplicated,
    )
    db.add(upload)

@@ -574,13 +561,13 @@ def upload_artifact(
    if tag:
        existing_tag = db.query(Tag).filter(Tag.package_id == package.id, Tag.name == tag).first()
        if existing_tag:
-            existing_tag.artifact_id = storage_result.sha256
+            existing_tag.artifact_id = sha256_hash
            existing_tag.created_by = user_id
        else:
            new_tag = Tag(
                package_id=package.id,
                name=tag,
-                artifact_id=storage_result.sha256,
+                artifact_id=sha256_hash,
                created_by=user_id,
            )
            db.add(new_tag)
@@ -588,16 +575,12 @@ def upload_artifact(
    db.commit()

    return UploadResponse(
-        artifact_id=storage_result.sha256,
-        sha256=storage_result.sha256,
-        size=storage_result.size,
+        artifact_id=sha256_hash,
+        size=size,
        project=project_name,
        package=package_name,
        tag=tag,
-        checksum_md5=storage_result.md5,
-        checksum_sha1=storage_result.sha1,
-        s3_etag=storage_result.s3_etag,
-        format_metadata=artifact.artifact_metadata,
+        format_metadata=artifact.format_metadata,
        deduplicated=deduplicated,
    )

@@ -846,13 +829,27 @@ def get_upload_status(
        raise HTTPException(status_code=404, detail=str(e))


-# Helper function to resolve artifact reference
-def _resolve_artifact_ref(
+# Download artifact with range request support
+@router.get("/api/v1/project/{project_name}/{package_name}/+/{ref}")
+def download_artifact(
+    project_name: str,
+    package_name: str,
    ref: str,
-    package: Package,
-    db: Session,
-) -> Optional[Artifact]:
-    """Resolve a reference (tag name, artifact:hash, tag:name) to an artifact"""
+    request: Request,
+    db: Session = Depends(get_db),
+    storage: S3Storage = Depends(get_storage),
+    range: Optional[str] = Header(None),
+):
+    # Get project and package
+    project = db.query(Project).filter(Project.name == project_name).first()
+    if not project:
+        raise HTTPException(status_code=404, detail="Project not found")
+
+    package = db.query(Package).filter(Package.project_id == project.id, Package.name == package_name).first()
+    if not package:
+        raise HTTPException(status_code=404, detail="Package not found")
+
+    # Resolve reference to artifact
    artifact = None

    # Check for explicit prefixes
@@ -873,76 +870,11 @@ def _resolve_artifact_ref(
            # Try as direct artifact ID
            artifact = db.query(Artifact).filter(Artifact.id == ref).first()

-    return artifact
-
-
-# Download artifact with range request support and download modes
-@router.get("/api/v1/project/{project_name}/{package_name}/+/{ref}")
-def download_artifact(
-    project_name: str,
-    package_name: str,
-    ref: str,
-    request: Request,
-    db: Session = Depends(get_db),
-    storage: S3Storage = Depends(get_storage),
-    range: Optional[str] = Header(None),
-    mode: Optional[Literal["proxy", "redirect", "presigned"]] = Query(
-        default=None,
-        description="Download mode: proxy (stream through backend), redirect (302 to presigned URL), presigned (return JSON with URL)"
-    ),
-):
-    settings = get_settings()
-
-    # Get project and package
-    project = db.query(Project).filter(Project.name == project_name).first()
-    if not project:
-        raise HTTPException(status_code=404, detail="Project not found")
-
-    package = db.query(Package).filter(Package.project_id == project.id, Package.name == package_name).first()
-    if not package:
-        raise HTTPException(status_code=404, detail="Package not found")
-
-    # Resolve reference to artifact
-    artifact = _resolve_artifact_ref(ref, package, db)
    if not artifact:
        raise HTTPException(status_code=404, detail="Artifact not found")

    filename = artifact.original_name or f"{artifact.id}"

-    # Determine download mode (query param overrides server default)
-    download_mode = mode or settings.download_mode
-
-    # Handle presigned mode - return JSON with presigned URL
-    if download_mode == "presigned":
-        presigned_url = storage.generate_presigned_url(
-            artifact.s3_key,
-            response_content_type=artifact.content_type,
-            response_content_disposition=f'attachment; filename="{filename}"',
-        )
-        expires_at = datetime.now(timezone.utc) + timedelta(seconds=settings.presigned_url_expiry)
-
-        return PresignedUrlResponse(
-            url=presigned_url,
-            expires_at=expires_at,
-            method="GET",
-            artifact_id=artifact.id,
-            size=artifact.size,
-            content_type=artifact.content_type,
-            original_name=artifact.original_name,
-            checksum_sha256=artifact.id,
-            checksum_md5=artifact.checksum_md5,
-        )
-
-    # Handle redirect mode - return 302 redirect to presigned URL
-    if download_mode == "redirect":
-        presigned_url = storage.generate_presigned_url(
-            artifact.s3_key,
-            response_content_type=artifact.content_type,
-            response_content_disposition=f'attachment; filename="{filename}"',
-        )
-        return RedirectResponse(url=presigned_url, status_code=302)
-
-    # Proxy mode (default fallback) - stream through backend
    # Handle range requests
    if range:
        stream, content_length, content_range = storage.get_stream(artifact.s3_key, range)
@@ -976,63 +908,6 @@ def download_artifact(
    )


-# Get presigned URL endpoint (explicit endpoint for getting URL without redirect)
-@router.get("/api/v1/project/{project_name}/{package_name}/+/{ref}/url", response_model=PresignedUrlResponse)
-def get_artifact_url(
-    project_name: str,
-    package_name: str,
-    ref: str,
-    db: Session = Depends(get_db),
-    storage: S3Storage = Depends(get_storage),
-    expiry: Optional[int] = Query(
-        default=None,
-        description="Custom expiry time in seconds (defaults to server setting)"
-    ),
-):
-    """
-    Get a presigned URL for direct S3 download.
-    This endpoint always returns a presigned URL regardless of server download mode.
-    """
-    settings = get_settings()
-
-    # Get project and package
-    project = db.query(Project).filter(Project.name == project_name).first()
-    if not project:
-        raise HTTPException(status_code=404, detail="Project not found")
-
-    package = db.query(Package).filter(Package.project_id == project.id, Package.name == package_name).first()
-    if not package:
-        raise HTTPException(status_code=404, detail="Package not found")
-
-    # Resolve reference to artifact
-    artifact = _resolve_artifact_ref(ref, package, db)
-    if not artifact:
-        raise HTTPException(status_code=404, detail="Artifact not found")
-
-    filename = artifact.original_name or f"{artifact.id}"
-    url_expiry = expiry or settings.presigned_url_expiry
-
-    presigned_url = storage.generate_presigned_url(
-        artifact.s3_key,
-        expiry=url_expiry,
-        response_content_type=artifact.content_type,
-        response_content_disposition=f'attachment; filename="{filename}"',
-    )
-    expires_at = datetime.now(timezone.utc) + timedelta(seconds=url_expiry)
-
-    return PresignedUrlResponse(
-        url=presigned_url,
-        expires_at=expires_at,
-        method="GET",
-        artifact_id=artifact.id,
-        size=artifact.size,
-        content_type=artifact.content_type,
-        original_name=artifact.original_name,
-        checksum_sha256=artifact.id,
-        checksum_md5=artifact.checksum_md5,
-    )
-
-
 # HEAD request for download (to check file info without downloading)
@router.head("/api/v1/project/{project_name}/{package_name}/+/{ref}")
 def head_artifact(
@@ -1051,8 +926,23 @@ def head_artifact(
    if not package:
        raise HTTPException(status_code=404, detail="Package not found")

-    # Resolve reference to artifact
-    artifact = _resolve_artifact_ref(ref, package, db)
+    # Resolve reference to artifact (same logic as download)
+    artifact = None
+    if ref.startswith("artifact:"):
+        artifact_id = ref[9:]
+        artifact = db.query(Artifact).filter(Artifact.id == artifact_id).first()
+    elif ref.startswith("tag:") or ref.startswith("version:"):
+        tag_name = ref.split(":", 1)[1]
+        tag = db.query(Tag).filter(Tag.package_id == package.id, Tag.name == tag_name).first()
+        if tag:
+            artifact = db.query(Artifact).filter(Artifact.id == tag.artifact_id).first()
+    else:
+        tag = db.query(Tag).filter(Tag.package_id == package.id, Tag.name == ref).first()
+        if tag:
+            artifact = db.query(Artifact).filter(Artifact.id == tag.artifact_id).first()
+        else:
+            artifact = db.query(Artifact).filter(Artifact.id == ref).first()
+
    if not artifact:
        raise HTTPException(status_code=404, detail="Artifact not found")

--- a/backend/app/schemas.py
+++ b/backend/app/schemas.py
@@ -99,13 +99,9 @@ class PackageDetailResponse(BaseModel):
 # Artifact schemas
 class ArtifactResponse(BaseModel):
    id: str
-    sha256: str  # Explicit SHA256 field (same as id)
    size: int
    content_type: Optional[str]
    original_name: Optional[str]
-    checksum_md5: Optional[str] = None
-    checksum_sha1: Optional[str] = None
-    s3_etag: Optional[str] = None
    created_at: datetime
    created_by: str
    ref_count: int
@@ -177,13 +173,9 @@ class ArtifactTagInfo(BaseModel):
 class ArtifactDetailResponse(BaseModel):
    """Artifact with list of tags/packages referencing it"""
    id: str
-    sha256: str  # Explicit SHA256 field (same as id)
    size: int
    content_type: Optional[str]
    original_name: Optional[str]
-    checksum_md5: Optional[str] = None
-    checksum_sha1: Optional[str] = None
-    s3_etag: Optional[str] = None
    created_at: datetime
    created_by: str
    ref_count: int
@@ -197,13 +189,9 @@ class ArtifactDetailResponse(BaseModel):
 class PackageArtifactResponse(BaseModel):
    """Artifact with tags for package artifact listing"""
    id: str
-    sha256: str  # Explicit SHA256 field (same as id)
    size: int
    content_type: Optional[str]
    original_name: Optional[str]
-    checksum_md5: Optional[str] = None
-    checksum_sha1: Optional[str] = None
-    s3_etag: Optional[str] = None
    created_at: datetime
    created_by: str
    format_metadata: Optional[Dict[str, Any]] = None
@@ -216,14 +204,10 @@ class PackageArtifactResponse(BaseModel):
 # Upload response
 class UploadResponse(BaseModel):
    artifact_id: str
-    sha256: str  # Explicit SHA256 field (same as artifact_id)
    size: int
    project: str
    package: str
    tag: Optional[str]
-    checksum_md5: Optional[str] = None
-    checksum_sha1: Optional[str] = None
-    s3_etag: Optional[str] = None
    format_metadata: Optional[Dict[str, Any]] = None
    deduplicated: bool = False

@@ -330,20 +314,6 @@ class GlobalSearchResponse(BaseModel):
    counts: Dict[str, int]  # Total counts for each type


-# Presigned URL response
-class PresignedUrlResponse(BaseModel):
-    """Response containing a presigned URL for direct S3 download"""
-    url: str
-    expires_at: datetime
-    method: str = "GET"
-    artifact_id: str
-    size: int
-    content_type: Optional[str] = None
-    original_name: Optional[str] = None
-    checksum_sha256: Optional[str] = None
-    checksum_md5: Optional[str] = None
-
-
 # Health check
 class HealthResponse(BaseModel):
    status: str
--- a/backend/app/storage.py
+++ b/backend/app/storage.py
@@ -1,6 +1,6 @@
 import hashlib
 import logging
-from typing import BinaryIO, Tuple, Optional, Dict, Any, Generator, NamedTuple
+from typing import BinaryIO, Tuple, Optional, Dict, Any, Generator
 import boto3
 from botocore.config import Config
 from botocore.exceptions import ClientError
@@ -18,16 +18,6 @@ MULTIPART_CHUNK_SIZE = 10 * 1024 * 1024
 HASH_CHUNK_SIZE = 8 * 1024 * 1024


-class StorageResult(NamedTuple):
-    """Result of storing a file with all computed checksums"""
-    sha256: str
-    size: int
-    s3_key: str
-    md5: Optional[str] = None
-    sha1: Optional[str] = None
-    s3_etag: Optional[str] = None
-
-
 class S3Storage:
    def __init__(self):
        config = Config(s3={"addressing_style": "path"} if settings.s3_use_path_style else {})
@@ -44,9 +34,9 @@ class S3Storage:
        # Store active multipart uploads for resumable support
        self._active_uploads: Dict[str, Dict[str, Any]] = {}

-    def store(self, file: BinaryIO, content_length: Optional[int] = None) -> StorageResult:
+    def store(self, file: BinaryIO, content_length: Optional[int] = None) -> Tuple[str, int, str]:
        """
-        Store a file and return StorageResult with all checksums.
+        Store a file and return its SHA256 hash, size, and s3_key.
        Content-addressable: if the file already exists, just return the hash.
        Uses multipart upload for files larger than MULTIPART_THRESHOLD.
        """
@@ -56,76 +46,45 @@ class S3Storage:
        else:
            return self._store_multipart(file, content_length)

-    def _store_simple(self, file: BinaryIO) -> StorageResult:
+    def _store_simple(self, file: BinaryIO) -> Tuple[str, int, str]:
        """Store a small file using simple put_object"""
-        # Read file and compute all hashes
+        # Read file and compute hash
        content = file.read()
        sha256_hash = hashlib.sha256(content).hexdigest()
-        md5_hash = hashlib.md5(content).hexdigest()
-        sha1_hash = hashlib.sha1(content).hexdigest()
        size = len(content)

        # Check if already exists
        s3_key = f"fruits/{sha256_hash[:2]}/{sha256_hash[2:4]}/{sha256_hash}"
-        s3_etag = None

        if not self._exists(s3_key):
-            response = self.client.put_object(
+            self.client.put_object(
                Bucket=self.bucket,
                Key=s3_key,
                Body=content,
            )
-            s3_etag = response.get("ETag", "").strip('"')
-        else:
-            # Get existing ETag
-            obj_info = self.get_object_info(s3_key)
-            if obj_info:
-                s3_etag = obj_info.get("etag", "").strip('"')

-        return StorageResult(
-            sha256=sha256_hash,
-            size=size,
-            s3_key=s3_key,
-            md5=md5_hash,
-            sha1=sha1_hash,
-            s3_etag=s3_etag,
-        )
+        return sha256_hash, size, s3_key

-    def _store_multipart(self, file: BinaryIO, content_length: int) -> StorageResult:
+    def _store_multipart(self, file: BinaryIO, content_length: int) -> Tuple[str, int, str]:
        """Store a large file using S3 multipart upload with streaming hash computation"""
-        # First pass: compute all hashes by streaming through file
-        sha256_hasher = hashlib.sha256()
-        md5_hasher = hashlib.md5()
-        sha1_hasher = hashlib.sha1()
+        # First pass: compute hash by streaming through file
+        hasher = hashlib.sha256()
        size = 0

-        # Read file in chunks to compute hashes
+        # Read file in chunks to compute hash
        while True:
            chunk = file.read(HASH_CHUNK_SIZE)
            if not chunk:
                break
-            sha256_hasher.update(chunk)
-            md5_hasher.update(chunk)
-            sha1_hasher.update(chunk)
+            hasher.update(chunk)
            size += len(chunk)

-        sha256_hash = sha256_hasher.hexdigest()
-        md5_hash = md5_hasher.hexdigest()
-        sha1_hash = sha1_hasher.hexdigest()
+        sha256_hash = hasher.hexdigest()
        s3_key = f"fruits/{sha256_hash[:2]}/{sha256_hash[2:4]}/{sha256_hash}"

        # Check if already exists (deduplication)
        if self._exists(s3_key):
-            obj_info = self.get_object_info(s3_key)
-            s3_etag = obj_info.get("etag", "").strip('"') if obj_info else None
-            return StorageResult(
-                sha256=sha256_hash,
-                size=size,
-                s3_key=s3_key,
-                md5=md5_hash,
-                sha1=sha1_hash,
-                s3_etag=s3_etag,
-            )
+            return sha256_hash, size, s3_key

        # Seek back to start for upload
        file.seek(0)
@@ -157,22 +116,14 @@ class S3Storage:
                part_number += 1

            # Complete multipart upload
-            complete_response = self.client.complete_multipart_upload(
+            self.client.complete_multipart_upload(
                Bucket=self.bucket,
                Key=s3_key,
                UploadId=upload_id,
                MultipartUpload={"Parts": parts},
            )
-            s3_etag = complete_response.get("ETag", "").strip('"')

-            return StorageResult(
-                sha256=sha256_hash,
-                size=size,
-                s3_key=s3_key,
-                md5=md5_hash,
-                sha1=sha1_hash,
-                s3_etag=s3_etag,
-            )
+            return sha256_hash, size, s3_key

        except Exception as e:
            # Abort multipart upload on failure
@@ -184,50 +135,33 @@ class S3Storage:
            )
            raise

-    def store_streaming(self, chunks: Generator[bytes, None, None]) -> StorageResult:
+    def store_streaming(self, chunks: Generator[bytes, None, None]) -> Tuple[str, int, str]:
        """
        Store a file from a stream of chunks.
        First accumulates to compute hash, then uploads.
        For truly large files, consider using initiate_resumable_upload instead.
        """
-        # Accumulate chunks and compute all hashes
-        sha256_hasher = hashlib.sha256()
-        md5_hasher = hashlib.md5()
-        sha1_hasher = hashlib.sha1()
+        # Accumulate chunks and compute hash
+        hasher = hashlib.sha256()
        all_chunks = []
        size = 0

        for chunk in chunks:
-            sha256_hasher.update(chunk)
-            md5_hasher.update(chunk)
-            sha1_hasher.update(chunk)
+            hasher.update(chunk)
            all_chunks.append(chunk)
            size += len(chunk)

-        sha256_hash = sha256_hasher.hexdigest()
-        md5_hash = md5_hasher.hexdigest()
-        sha1_hash = sha1_hasher.hexdigest()
+        sha256_hash = hasher.hexdigest()
        s3_key = f"fruits/{sha256_hash[:2]}/{sha256_hash[2:4]}/{sha256_hash}"
-        s3_etag = None

        # Check if already exists
        if self._exists(s3_key):
-            obj_info = self.get_object_info(s3_key)
-            s3_etag = obj_info.get("etag", "").strip('"') if obj_info else None
-            return StorageResult(
-                sha256=sha256_hash,
-                size=size,
-                s3_key=s3_key,
-                md5=md5_hash,
-                sha1=sha1_hash,
-                s3_etag=s3_etag,
-            )
+            return sha256_hash, size, s3_key

        # Upload based on size
        if size < MULTIPART_THRESHOLD:
            content = b"".join(all_chunks)
-            response = self.client.put_object(Bucket=self.bucket, Key=s3_key, Body=content)
-            s3_etag = response.get("ETag", "").strip('"')
+            self.client.put_object(Bucket=self.bucket, Key=s3_key, Body=content)
        else:
            # Use multipart for large files
            mpu = self.client.create_multipart_upload(Bucket=self.bucket, Key=s3_key)
@@ -271,13 +205,12 @@ class S3Storage:
                        "ETag": response["ETag"],
                    })

-                complete_response = self.client.complete_multipart_upload(
+                self.client.complete_multipart_upload(
                    Bucket=self.bucket,
                    Key=s3_key,
                    UploadId=upload_id,
                    MultipartUpload={"Parts": parts},
                )
-                s3_etag = complete_response.get("ETag", "").strip('"')

            except Exception as e:
                logger.error(f"Streaming multipart upload failed: {e}")
@@ -288,14 +221,7 @@ class S3Storage:
                )
                raise

-        return StorageResult(
-            sha256=sha256_hash,
-            size=size,
-            s3_key=s3_key,
-            md5=md5_hash,
-            sha1=sha1_hash,
-            s3_etag=s3_etag,
-        )
+        return sha256_hash, size, s3_key

    def initiate_resumable_upload(self, expected_hash: str) -> Dict[str, Any]:
        """
@@ -450,46 +376,6 @@ class S3Storage:
        except ClientError:
            return False

-    def generate_presigned_url(
-        self,
-        s3_key: str,
-        expiry: Optional[int] = None,
-        response_content_type: Optional[str] = None,
-        response_content_disposition: Optional[str] = None,
-    ) -> str:
-        """
-        Generate a presigned URL for downloading an object.
-
-        Args:
-            s3_key: The S3 key of the object
-            expiry: URL expiry in seconds (defaults to settings.presigned_url_expiry)
-            response_content_type: Override Content-Type header in response
-            response_content_disposition: Override Content-Disposition header in response
-
-        Returns:
-            Presigned URL string
-        """
-        if expiry is None:
-            expiry = settings.presigned_url_expiry
-
-        params = {
-            "Bucket": self.bucket,
-            "Key": s3_key,
-        }
-
-        # Add response header overrides if specified
-        if response_content_type:
-            params["ResponseContentType"] = response_content_type
-        if response_content_disposition:
-            params["ResponseContentDisposition"] = response_content_disposition
-
-        url = self.client.generate_presigned_url(
-            "get_object",
-            Params=params,
-            ExpiresIn=expiry,
-        )
-        return url
-

 # Singleton instance
 _storage = None
--- a/docker-compose.local.yml
+++ b/docker-compose.local.yml
@@ -1,122 +0,0 @@
-version: '3.8'
-
-services:
-  orchard-server:
-    build:
-      context: .
-      dockerfile: Dockerfile.local
-    ports:
-      - "8080:8080"
-    environment:
-      - ORCHARD_SERVER_HOST=0.0.0.0
-      - ORCHARD_SERVER_PORT=8080
-      - ORCHARD_DATABASE_HOST=postgres
-      - ORCHARD_DATABASE_PORT=5432
-      - ORCHARD_DATABASE_USER=orchard
-      - ORCHARD_DATABASE_PASSWORD=orchard_secret
-      - ORCHARD_DATABASE_DBNAME=orchard
-      - ORCHARD_DATABASE_SSLMODE=disable
-      - ORCHARD_S3_ENDPOINT=http://minio:9000
-      - ORCHARD_S3_REGION=us-east-1
-      - ORCHARD_S3_BUCKET=orchard-artifacts
-      - ORCHARD_S3_ACCESS_KEY_ID=minioadmin
-      - ORCHARD_S3_SECRET_ACCESS_KEY=minioadmin
-      - ORCHARD_S3_USE_PATH_STYLE=true
-      - ORCHARD_REDIS_HOST=redis
-      - ORCHARD_REDIS_PORT=6379
-    depends_on:
-      postgres:
-        condition: service_healthy
-      minio:
-        condition: service_healthy
-      redis:
-        condition: service_healthy
-    networks:
-      - orchard-network
-    restart: unless-stopped
-    healthcheck:
-      test: ["CMD", "curl", "-f", "http://localhost:8080/health"]
-      interval: 30s
-      timeout: 3s
-      start_period: 10s
-      retries: 3
-
-  postgres:
-    image: postgres:16-alpine
-    environment:
-      - POSTGRES_USER=orchard
-      - POSTGRES_PASSWORD=orchard_secret
-      - POSTGRES_DB=orchard
-    volumes:
-      - postgres-data-local:/var/lib/postgresql/data
-      - ./migrations:/docker-entrypoint-initdb.d:ro
-    ports:
-      - "5432:5432"
-    healthcheck:
-      test: ["CMD-SHELL", "pg_isready -U orchard -d orchard"]
-      interval: 10s
-      timeout: 5s
-      retries: 5
-    networks:
-      - orchard-network
-    restart: unless-stopped
-
-  minio:
-    image: minio/minio:latest
-    command: server /data --console-address ":9001"
-    environment:
-      - MINIO_ROOT_USER=minioadmin
-      - MINIO_ROOT_PASSWORD=minioadmin
-    volumes:
-      - minio-data-local:/data
-    ports:
-      - "9000:9000"
-      - "9001:9001"
-    healthcheck:
-      test: ["CMD", "mc", "ready", "local"]
-      interval: 10s
-      timeout: 5s
-      retries: 5
-    networks:
-      - orchard-network
-    restart: unless-stopped
-
-  minio-init:
-    image: minio/mc:latest
-    depends_on:
-      minio:
-        condition: service_healthy
-    entrypoint: >
-      /bin/sh -c "
-      mc alias set myminio http://minio:9000 minioadmin minioadmin;
-      mc mb myminio/orchard-artifacts --ignore-existing;
-      mc anonymous set download myminio/orchard-artifacts;
-      exit 0;
-      "
-    networks:
-      - orchard-network
-
-  redis:
-    image: redis:7-alpine
-    command: redis-server --appendonly yes
-    volumes:
-      - redis-data-local:/data
-    ports:
-      - "6379:6379"
-    healthcheck:
-      test: ["CMD", "redis-cli", "ping"]
-      interval: 10s
-      timeout: 5s
-      retries: 5
-    networks:
-      - orchard-network
-    restart: unless-stopped
-
-volumes:
-  postgres-data-local:
-  minio-data-local:
-  redis-data-local:
-
-networks:
-  orchard-network:
-    driver: bridge
--- a/helm/orchard/templates/NOTES.txt
+++ b/helm/orchard/templates/NOTES.txt
@@ -62,3 +62,5 @@ Orchard has been installed!
   Endpoint: {{ include "orchard.minio.host" . }}
   Bucket: {{ .Values.orchard.s3.bucket }}
 {{- end }}
+
+For more information, visit: https://git.bitstorm.ca/bitforge/orchard
--- a/helm/orchard/templates/_helpers.tpl
+++ b/helm/orchard/templates/_helpers.tpl
@@ -97,27 +97,10 @@ password
 {{- end }}

 {{/*
-MinIO internal host (for server-side operations)
-*/}}
-{{- define "orchard.minio.internalHost" -}}
-{{- if .Values.minio.enabled }}
-{{- printf "http://%s-minio:9000" .Release.Name }}
-{{- else }}
-{{- .Values.orchard.s3.endpoint }}
-{{- end }}
-{{- end }}
-
-{{/*
-MinIO host (uses external URL if ingress enabled, for presigned URLs)
+MinIO host
 */}}
 {{- define "orchard.minio.host" -}}
-{{- if and .Values.minio.enabled .Values.minioIngress.enabled .Values.minioIngress.host }}
-{{- if .Values.minioIngress.tls.enabled }}
-{{- printf "https://%s" .Values.minioIngress.host }}
-{{- else }}
-{{- printf "http://%s" .Values.minioIngress.host }}
-{{- end }}
-{{- else if .Values.minio.enabled }}
+{{- if .Values.minio.enabled }}
 {{- printf "http://%s-minio:9000" .Release.Name }}
 {{- else }}
 {{- .Values.orchard.s3.endpoint }}
--- a/helm/orchard/templates/deployment.yaml
+++ b/helm/orchard/templates/deployment.yaml
@@ -92,10 +92,6 @@ spec:
                secretKeyRef:
                  name: {{ include "orchard.minio.secretName" . }}
                  key: {{ if .Values.minio.enabled }}root-password{{ else }}{{ .Values.orchard.s3.existingSecretSecretKeyKey }}{{ end }}
-            - name: ORCHARD_DOWNLOAD_MODE
-              value: {{ .Values.orchard.download.mode | quote }}
-            - name: ORCHARD_PRESIGNED_URL_EXPIRY
-              value: {{ .Values.orchard.download.presignedUrlExpiry | quote }}
          livenessProbe:
            {{- toYaml .Values.livenessProbe | nindent 12 }}
          readinessProbe:
--- a/helm/orchard/templates/minio-ingress.yaml
+++ b/helm/orchard/templates/minio-ingress.yaml
@@ -1,34 +0,0 @@
-{{- if and .Values.minio.enabled .Values.minioIngress.enabled -}}
-apiVersion: networking.k8s.io/v1
-kind: Ingress
-metadata:
-  name: {{ include "orchard.fullname" . }}-minio
-  labels:
-    {{- include "orchard.labels" . | nindent 4 }}
-    app.kubernetes.io/component: minio
-  {{- with .Values.minioIngress.annotations }}
-  annotations:
-    {{- toYaml . | nindent 4 }}
-  {{- end }}
-spec:
-  {{- if .Values.minioIngress.className }}
-  ingressClassName: {{ .Values.minioIngress.className }}
-  {{- end }}
-  {{- if .Values.minioIngress.tls.enabled }}
-  tls:
-    - hosts:
-        - {{ .Values.minioIngress.host | quote }}
-      secretName: {{ .Values.minioIngress.tls.secretName }}
-  {{- end }}
-  rules:
-    - host: {{ .Values.minioIngress.host | quote }}
-      http:
-        paths:
-          - path: /
-            pathType: Prefix
-            backend:
-              service:
-                name: {{ .Release.Name }}-minio
-                port:
-                  number: 9000
-{{- end }}
--- a/helm/orchard/values.yaml
+++ b/helm/orchard/values.yaml
@@ -115,11 +115,6 @@ orchard:
    existingSecretAccessKeyKey: "access-key-id"
    existingSecretSecretKeyKey: "secret-access-key"

-  # Download configuration
-  download:
-    mode: "presigned"  # presigned, redirect, or proxy
-    presignedUrlExpiry: 3600  # Presigned URL expiry in seconds
-
 # PostgreSQL subchart configuration
 postgresql:
  enabled: true
@@ -153,18 +148,6 @@ minio:
    enabled: false
    size: 50Gi

-# MinIO external ingress for presigned URL access (separate from subchart ingress)
-minioIngress:
-  enabled: true
-  className: "nginx"
-  annotations:
-    cert-manager.io/cluster-issuer: "letsencrypt"
-    nginx.ingress.kubernetes.io/proxy-body-size: "0"  # Disable body size limit for uploads
-  host: "minio-orch-dev.common.global.bsf.tools"
-  tls:
-    enabled: true
-    secretName: minio-tls
-
 # Redis subchart configuration (for future caching)
 redis:
  enabled: false
--- a/migrations/001_initial.sql
+++ b/migrations/001_initial.sql
@@ -41,8 +41,6 @@ CREATE TABLE IF NOT EXISTS artifacts (
    content_type VARCHAR(255),
    original_name VARCHAR(1024),
    checksum_md5 VARCHAR(32),    -- MD5 hash for additional verification
-    checksum_sha1 VARCHAR(40),   -- SHA1 hash for compatibility
-    s3_etag VARCHAR(64),         -- S3 ETag for verification
    metadata JSONB,              -- format-specific metadata
    created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
    created_by VARCHAR(255) NOT NULL,
@@ -53,8 +51,6 @@ CREATE TABLE IF NOT EXISTS artifacts (
 CREATE INDEX idx_artifacts_created_at ON artifacts(created_at);
 CREATE INDEX idx_artifacts_created_by ON artifacts(created_by);
 CREATE INDEX idx_artifacts_metadata ON artifacts USING GIN (metadata);
-CREATE INDEX idx_artifacts_checksum_md5 ON artifacts(checksum_md5) WHERE checksum_md5 IS NOT NULL;
-CREATE INDEX idx_artifacts_checksum_sha1 ON artifacts(checksum_sha1) WHERE checksum_sha1 IS NOT NULL;

 -- Tags (Aliases pointing to artifacts)
 CREATE TABLE IF NOT EXISTS tags (
--- a/migrations/003_checksum_fields.sql
+++ b/migrations/003_checksum_fields.sql
@@ -1,12 +0,0 @@
-- Migration 003: Additional Checksum Fields
-- Adds checksum_sha1 and s3_etag fields to artifacts table
-
-- ============================================
-- Artifacts: Add checksum_sha1 and s3_etag fields
-- ============================================
-ALTER TABLE artifacts ADD COLUMN IF NOT EXISTS checksum_sha1 VARCHAR(40);
-ALTER TABLE artifacts ADD COLUMN IF NOT EXISTS s3_etag VARCHAR(64);
-
-- Create indexes for checksum lookups (optional, for verification queries)
-CREATE INDEX IF NOT EXISTS idx_artifacts_checksum_md5 ON artifacts(checksum_md5) WHERE checksum_md5 IS NOT NULL;
-CREATE INDEX IF NOT EXISTS idx_artifacts_checksum_sha1 ON artifacts(checksum_sha1) WHERE checksum_sha1 IS NOT NULL;