fix(docker): create uv venv before install, remove --no-index flag

Author: Edge-Explorer

Dockerfile

@@ -1,42 +1,42 @@
-# Use a multi-stage build to reduce the final image size.
-
-# --- Builder Stage: Install Dependencies and Package the Application ---
+# Multi-stage build — keeps final image lean
+# Stage 1: Builder — installs all deps into a venv
 FROM python:3.11-slim-bookworm AS builder
 
-# Set the working directory
 WORKDIR /app
 
-# Copy the pyproject.toml and poetry.lock files
+# Install uv (fast Python package manager)
+RUN pip install --no-cache-dir uv
+
+# Copy only the dependency manifest first (cache-friendly layer)
 COPY pyproject.toml .
-COPY uv.lock .
 
-# Install uv and use it to install project dependencies
-RUN pip install uv
-RUN uv pip install --no-cache-dir --no-index --find-links=. .
+# Install project deps into a proper venv using uv
+RUN uv venv /app/.venv && \
+    . /app/.venv/bin/activate && \
+    uv pip install --no-cache-dir -e .
 
-# Copy the application code
+# Copy source code
 COPY devguardian /app/devguardian
 COPY README.md .
 
-# --- Final Stage: Create the Production Image ---
+# ──────────────────────────────────────────────
+# Stage 2: Runtime — lean final image
 FROM python:3.11-slim-bookworm
 
-# Set the working directory
 WORKDIR /app
 
-# Copy the dependencies from the builder stage
-COPY --from=builder /app/.venv ./.venv
+# Copy the venv and application from builder
+COPY --from=builder /app/.venv /app/.venv
 COPY --from=builder /app/devguardian /app/devguardian
-COPY --from=builder /app/README.md /app/README.md
+COPY --from=builder /app/pyproject.toml /app/pyproject.toml
 
-# Make .venv executable
+# Put venv on PATH so `devguardian` command is found
 ENV PATH="/app/.venv/bin:${PATH}"
-
-# Set environment variables (optional, but good practice)
 ENV PYTHONUNBUFFERED=1
 
-# Expose the port (if necessary - determine from server.py)
+# DevGuardian reads from stdio (MCP protocol) — no port needed
+# EXPOSE 8000 is kept for reference if HTTP mode is added later
 EXPOSE 8000
 
-# Command to run the application
+# Run the MCP server
 CMD ["devguardian"]