.dockerignore

@@ -2,12 +2,15 @@
 .git
 .gitignore
 
-# Ignore backend files from root
-
+# Ignore frontend files (not needed for backend)
+frontend/node_modules
+frontend/.next
+frontend/out
+frontend/.turbo
 
 # Ignore documentation
 README.md
-*.md
+docs/
 
 # Ignore results and cache
 results/
@@ -17,10 +20,13 @@ __pycache__/
 *.pyd
 .pytest_cache/
 .coverage
+.mypy_cache/
+.ruff_cache/
 
 # Environment files
 .env
 .env.*
+!.env.example
 
 # Ignore development files
 .vscode/
@@ -30,3 +36,22 @@ __pycache__/
 
 # Ignore Mac files
 .DS_Store
+
+# Ignore test files
+**/tests/
+**/test_*.py
+**/*_test.py
+
+# Ignore assets not needed for backend
+assets/
+web_screenshot/
+llm_logo/
+report/
+
+# Ignore lock files (use requirements.txt)
+uv.lock
+poetry.lock
+
+# Ignore CLI (if not needed)
+cli/
+

backend/Dockerfile

@@ -1,21 +1,28 @@
-# Multi-stage build for FastAPI backend
+# syntax=docker/dockerfile:1.4
+# Multi-stage build for FastAPI backend with optimized caching
+
 FROM python:3.11-slim as builder
 
 # Set working directory
 WORKDIR /app
 
-# Install system dependencies
+# Install system dependencies (cached layer)
 RUN apt-get update && apt-get install -y --no-install-recommends \
     build-essential \
     git \
     && rm -rf /var/lib/apt/lists/*
 
-# Copy requirements from backend directory
+# Upgrade pip once (cached layer)
+RUN pip install --no-cache-dir --upgrade pip
+
+# Copy ONLY requirements first for better layer caching
+# This layer only rebuilds when requirements.txt changes
 COPY backend/requirements.txt .
 
-# Install Python dependencies
-RUN pip install --no-cache-dir --upgrade pip && \
-    pip install --no-cache-dir -r requirements.txt
+# Install Python dependencies with BuildKit cache mount
+# This caches downloaded packages between builds, dramatically speeding up rebuilds
+RUN --mount=type=cache,target=/root/.cache/pip \
+    pip install --prefer-binary -r requirements.txt
 
 # Production stage
 FROM python:3.11-slim
@@ -41,7 +48,6 @@ RUN mkdir -p /app/results
 # Expose port
 EXPOSE 8000
 
-# Run the application
 # Run the application using the PORT environment variable (required by Railway)
 # Using --reload false to prevent hot-reload issues in production
 CMD ["sh", "-c", "python -m backend --reload false --port ${PORT:-8000}"]