Switch to Railway Python buildpack: fix uv.lock and remove Docker forcing

PROBLEM SOLVED:
- Fixed uv.lock sync error by regenerating lockfile
- Railway now uses Python buildpack instead of fighting Docker auto-detection

CHANGES:
- Updated mcp_server/uv.lock to sync with pyproject.toml
- Removed Docker forcing files (Dockerfile, nixpacks.toml, .dockerignore)
- Updated railway.json for Python buildpack with proper start command
- Simplified approach: let Railway handle Python environment naturally

DEPLOYMENT:
- Build: 'cd mcp_server && uv sync'
- Start: 'cd mcp_server && uv run graphiti_mcp_server.py --transport sse'
- Should deploy in ~2-3 minutes with Python buildpack

🚀 Generated with Claude Code (https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

.dockerignore

@@ -1,32 +0,0 @@
-# Exclude files that don't need to be in the Docker build context
-.git
-.gitignore
-.github/
-*.md
-!README.md
-.env*
-!.env.example
-.venv/
-__pycache__/
-*.pyc
-*.pyo
-*.pyd
-.pytest_cache/
-.coverage
-htmlcov/
-.tox/
-.mypy_cache/
-.DS_Store
-node_modules/
-*.log
-tests/
-docs/
-images/
-signatures/
-depot.json
-ellipsis.yaml
-conftest.py
-pytest.ini
-docker-compose*.yml
-uv.lock
-poetry.lock

Dockerfile

@@ -1,36 +0,0 @@
-# Ultra-simple Railway-compatible Dockerfile for Graphiti MCP Server
-FROM python:3.12-slim
-
-WORKDIR /app
-
-# Install system dependencies
-RUN apt-get update && apt-get install -y --no-install-recommends \
-    gcc \
-    && rm -rf /var/lib/apt/lists/*
-
-# Copy the entire project
-COPY . .
-
-# Install graphiti-core from source using standard pip
-RUN pip install --no-cache-dir .
-
-# Install MCP server dependencies using standard pip
-RUN pip install --no-cache-dir -r requirements.txt
-
-# Create non-root user
-RUN groupadd -r app && useradd -r -d /app -g app app
-RUN chown -R app:app /app
-
-# Switch to non-root user
-USER app
-
-# Set environment variables for Railway
-ENV PYTHONUNBUFFERED=1
-ENV PORT=8000
-
-# Expose port
-EXPOSE $PORT
-
-# Change to MCP server directory and run
-WORKDIR /app/mcp_server
-CMD ["python", "graphiti_mcp_server.py", "--transport", "sse"]

nixpacks.toml

@@ -1,7 +0,0 @@
-# Force Railway to use Dockerfile instead of auto-detection
-[variables]
-NIXPACKS_NO_CACHE = 'true'
-
-# Explicitly disable nixpacks to force Docker usage  
-[phases.build]
-cmds = ["echo 'Using Dockerfile - nixpacks disabled'"]

railway.json

@@ -1,12 +1,10 @@
 {
   "$schema": "https://railway.app/railway.schema.json",
   "build": {
-    "builder": "dockerfile",
-    "dockerfilePath": "Dockerfile",
-    "buildArgs": {}
+    "buildCommand": "cd mcp_server && uv sync"
   },
   "deploy": {
-    "numReplicas": 1,
+    "startCommand": "cd mcp_server && uv run graphiti_mcp_server.py --transport sse",
     "restartPolicyType": "on_failure",
     "restartPolicyMaxRetries": 10
   }

requirements.txt

@@ -1,5 +0,0 @@
-# Railway-compatible requirements for Graphiti MCP Server
-mcp>=1.5.0
-openai>=1.68.2
-azure-identity>=1.21.0
-python-dotenv